FLOW | TABLEOFCONTENTS
139_Layout 2 7/8/14 10:47 AM Page 139
TECHNICAL
INFORMATION
page 143
Flowmeters,
Variable Area
pages 144-157
Flowmeters,
In-Line
pages 158-164
Flowmeters,
Dial
pages 165-167
Flow Sensors,
In-Line
pages 168-169
Flowmeters,
Orifice Plate
pages 170-173
Flowmeters,
Venturi
page 174
Sight Flow
Indicators
pages 175-177
Flow Switches,
Paddle
pages 178-183
Flow Switches,
Thermal
pages 184-185
Flow Switches,
Shuttle/Piston
pages 186-188
Flow Transmitters,
In-Line
pages 189-190
Flow Transmitters,
Turbine
pages 191-193
Flow Transmitters,
Paddlewheel,
Adjustable Insertion
pages 194-196
Flow Transmitters,
Paddlewheel,
Fixed Insertion
pages 197-198
Watermeters
pages 199-200
Flow Transmitters,
Paddlewheel,
In-Line
pages 201-206
Flow Transmitters,
Electromagnetic,
In-Line
pages 207-210
Flow Transmitters,
Electromagnetic,
Adjustable Insertion
page 211
Flow Transmitters,
Electromagnetic,
Fixed Insertion
pages 212-213
Flow Transmitters,
Ultrasonic
pages 214-217, 221
Flow Transmitters,
Ultrasonic,
Portable
pages 218-220
Flow Sensors,
Portable
page 222
Mass Flowmeters/
Controllers
pages 223-227
Flowmeters,
Totalizers
pages 228-229
Flowmeters,
Accessories
page 230
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FLOW | TABLEOFCONTENTS
TYPICAL
APPLICATIONS
pages 140-142
139
Designers of a bio-medical incubator rely on a Dwyer® flowmeter to
control CO2 flow.
Flowmeters and/or differential pressure switches monitor vital purge
gas flow to motors, switchgear, instruments.
This low temperature incubator with CO2 atmosphere is used in bio-medical
applications, such as short term blood work and long term tissue culture studies. CO2
is introduced at a high initial purge rate controlled by a timer. After the purge period,
a Dwyer® Visi-Float® flowmeter with a metering valve is utilized to adjust and monitor
the CO2 flow in cubic centimeters per minute. The Visi-Float® flowmeter provides the
reliability and accuracy needed to complement the host of high performance features
designed into this incubator.
To purge motors, generators, switchgear, and industrial instrument cases, Dwyer®
flowmeters are installed in the supply line to indicate a flow of air, manufactured inert
gas, or nitrogen to these devices. The flowmeters (with valves) allow maintenance
personnel to set the flow quickly and recheck anytime to make sure proper flow
continues. A Dwyer® differential pressure switch can also be used to monitor proper
flow on a continuous basis and provide a signal or alarm if purge gas flow fails. Such
an optional switch is shown above, monitoring proper flow of purge gas to the
switchbox as a function of pressure drop across the flowmeter. The purging of
electrical equipment in hazardous areas may require more extensive control and
monitoring devices.
Metering valves on Dwyer® flowmeters control air/gas intake on
permanent air pollution analyzers.
Operator uses Mini-Master® flowmeter to verify air flow into portable
dust monitor.
Regulations regarding air pollution levels require continuous monitoring a source and
ambient pollutants in areas where noxious gases are generated. Ambient air quality
samplers utilize either Visi-Float® or Rate-Master® flowmeters to establish the proper
flow of sample or carrier gases into the analyzer. Top mounted metering valves are
recommended for flowmeters used in vacuum service to maintain specified accuracy.
The small size, accuracy, and low cost of the Dwyer® Mini-Master® Series flowmeter
lends itself perfectly to use in this portable, battery-operated dust monitor. Using a
light scattering electronic sampler, a small vacuum pump draws air through the
flowmeter into the sampling chamber, and the flowmeter verifies the proper volume
of sample air flow. Readout is digital and directly in dust weight per cubic meter of air.
Typical Applications
FLOW
140_Layout 1 7/29/14 2:06 PM Page 140
140
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
141_Layout 1 7/8/14 10:50 AM Page 141
Brass body gage measures water flow rates.
Flotect® flow switch ensures cooling water circulation before air
conditioning compressor motor starts.
When main pump fails, Flotect® flow switch transfers to standby
pump to maintain vital fluid circulation.
W.E. Anderson® Midwest Sight Flow Indicator reveals flow or
stoppage.
When proper fluid circulation in a system is critical, the W.E. Anderson® Flotect® flow
switch will automatically start a standby pump should the main pump fail. The flow in
the main path of the parallel system illustrated keeps the Flotect® flow switch in an
open position. When the main pump fails, the flow will cease. The flow switch then
closes, starting the standby pump.
In this gravity feed system delivering liquid fertilizer to portable tanks, a Midwest Model
100 sight flow indicator was installed. The operator can see the rotating vanes to
check for adequate flow at any time.
Typical Applications
Large air conditioning and refrigeration systems which include water cooled
condensers require that the water must circulate through the condenser and cooling
tower in sufficient volume before the compressor is started. Here the W.E. Anderson®
Flotect® flow switch is connected to the compressor control circuit to prevent starting
or to shut down the compressor control circuit if the flow of cooling water falls below
that required for proper operation. A dual Flotect® switch (available as an option) will
also trigger a remote alarm to signal the operator of the shutdown as soon as it occurs.
FLOW
A Dwyer® brass body Capsuhelic® differential pressure gage, required for water
service to prevent corrosion damage to the gage, is used in conjunction with a Dwyer®
Series DS-300 averaging Pitot tube. The Capsuhelic® gage provides a basic method
of measuring water flow rates. As a guide in selecting the appropriate Capsuhelic®
gage range, the designer can consult data provided with the DS-300 averaging Pitot
tube. This relates differential pressure in inches of water column to the water flow in
gallons per minute for the pipe size involved. The gage can be calibrated directly in
GPM if desired. Bleed fittings installed in the top ports of the gage are recommended
to facilitate removal of air from the system.
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141
Flows of air and gases used in a special furnace are controlled by
Dwyer® flowmeters.
Durable dual-column flowmeter adds value for physicians and oral
surgeons.
A total of eleven Dwyer® Rate-Master® flowmeters function in the design of this
sophisticated conveyor belt furnace used in manufacturing electronic devices. The
flowmeters provide precise adjustment and monitoring of the flows of air and gases
into the various portions of the furnace, which allow it to perform different operations,
such as decarburizing and oxidizing, metallic package sealing, glass package sealing,
and glass-to-metal sealing.
Physicians and oral surgeons who use anesthesia or analgesia in their offices on an
occasional basis require a system that is reliable but small and portable. One such
system employs special Dwyer® dual-column Visi-Float® flowmeters to meter and
monitor precise flows of nitrous oxide and oxygen to the patient. In addition to meeting
the performance level demanded by this application, the Visi-Float® flowmeters are
durable and attractive complements to this important and visible medical device.
Salt corrosion test cabinet includes a Dwyer® flowmeter for
adjustment of bubbler air flow.
Measuring air velocity with an orifice plate.
Typical Applications
FLOW
142_Layout 1 7/8/14 10:50 AM Page 142
Prior to atomizing a heated salt solution to produce a fog inside this corrosion test
cabinet, compressed air is bubbled through a heated water column to properly heat
and humidify the air. A Dwyer® Visi-Float® VFA flowmeter, as part of the system,
provides precise adjustment of the bubbler air flow to meet test standards.
142
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
In this set-up, the Magnehelic® gage measures higher air velocities as a function of
the pressure drop across a sharp-edged orifice plate in the pipe. The pressure drops
can be converted to air velocity using orifice plate data supplied by the manufacturer.
Details regarding available sizes, ranges, installation, and limitations are available
from orifice plate manufacturers and from standard handbooks. A Dwyer® Durablock®
inclined manometer or Photohelic® differential pressure switch/gage can also be used.
In addition to the visual reading gage, the Photohelic® switch/gage provides an alarm
signal or shutdown control function. Pressure sensing taps should be located on the
side or top of the pipe or duct to prevent condensation from draining into sensing lines
or gages.
143_Layout 1 7/8/14 10:51 AM Page 143
CONVERSION CURVES FOR GASES
10
GAS PRESSURE PSIG BELOW ATMOSPHERE
-14
-12
Scan here
to watch
product video
-8
-6
-10
-4
-2
0
9
4
8
6
8
10
15
7
20
6
30
40
5
60
80
100
4
3
2
GAS PRESSURE PSIG ABOVE ATMOSPHERE
OBSERVED FLOWMETER READING
2
0
10
1
2
3
4
5
6
7
ACTUAL GAS FLOW CORRECTED FOR PRESSURE*
SPEClFIC GRAVITY OF GAS (REFERRED TO AIR)
2.2 2.0 1.81.6 1.4 1.2
1.0 0.9 0.8 0.7
0.6
0.5
8
9
0.4
FLOW
1
10
0.3
0.2
9
OBSERVED FLOWMETER READING
Technical Information
8
7
0.1
6
5
4
3
2
1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
EQUIVALENT GAS FLOW CORRECTED FOR SPECIFIC GRAVITY-STD. COND.*
If more convenient, approximate correction factors may be determined using the
following formulas:
A. Pressure: Q2 = Q1 X
P1 X T2
P2 X T1
Where: Q1= Actual or Observed Flowmeter Reading
Q2 = Standard Flow Corrected for Pressure and Temperature
P1 = Actual Pressure (14.7 psia + Gage Pressure)
P2 = Standard Pressure (14.7 psia, which is 0 psig)
T1 = Actual Temperature (460 R + Temp °F)
T2 = Standard Temperature (530 R, which is 70°F)
*Measured at discharge on all but TMV units. Inlet pressure on TMV models.
17
18
19
20
B. Specific Gravity: Q2 = Q1 X
1
S.G.
Where: Q1 = Observed Flowmeter Reading
Q2 = Standard Flow Corrected for Specific Gravity
1 = Specific Gravity of Air or Water
S.G.= Specific gravity of media being used in flowmeter originally calibrated
for air or water.
Note: The corrections shown in the curves and in the formulas are for variations in
specific gravity and internal pressure* only. Further correction may be necessary for
variations in viscosity and changes in type of flow from laminar to turbulent or vice
versa. This is particularly true in the case of extremely low flows of the lighter gases.
Nevertheless these charts and correction factors can be quite useful when dealing
with small changes in pressure* and specific gravity.
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143
144_Layout 1 7/8/14 10:52 AM Page 144
Series
MM
®
Mini-Master Flowmeters
Used to Indicate or Manually Control Air or Water
2-1/2 [63.50]
1-31/32
[50.01]
1-1/2 [38.10]
3-3/4
[95.25]
ø5/16
[7.94] TYP
3
[76.20]
3/8 [9.53]
3/4
[19.05]
1-3/8 [34.93]
1-29/32
[48.42]
2-27/64 [61.52]
1
[25.40]
A
C
B
A. Standard Model MMA
B. Standard Model MMA with field configurable valve, bottom mount
C. Standard Model MMA with field configurable valve, top mount
FLOW
1/4
[6.15]
O.D. TUBES
1/2
[12.70]
3/4
[20.19]
OUTLET
2-1/16
[52.37]
Flowmeters, Variable Area
2-5/8
[66.68]
INLET
Model MMF-50-PV
1-1/2 scale, with
metering valve, knob.
Model MMF-10 with
1-1/2 scale, no valve.
Model MMF-10-TMV with topmounted valve-for vacuum service.
Use screwdriver to adjust.
7/8
[22.23]
5/16
[7.92]
3/4
13/32
[10.36] [19.05]
15/16
[23.98]
Scan here to watch product video
Offering advanced features at low cost, the Series MM flowmeters are ideal for a wide
range of OEM and user applications in medical equipment, air samplers, gas analyzers,
pollution monitors, chemical injectors, cabinet purging, etc.
The standard Model MMA flowmeter is suitable for both gas and liquid applications. It can
be configured by the user with the parts provided to have non-removable top or bottom
front mounted metering valves or no valve at all. The transparent nylon material provides
high chemical resistance, low moisture absorption and is transparent to facilitate routine
inspection. Using the assembly key provided, the flowmeter can be disassembled anytime
for cleaning or reconfiguration. In OEM quantities, ultrasonically welded caps or
interchangeable mold cores enable production of the MMA flowmeter with a low profile or
flat front surface where no valve is required.
The MMA is practically unbreakable, mounts easily, and is easy to read. Two 5/16˝ OD
mounting — connection tubes permit quick push-on connection of rubber or plastic tubing.
A bottom clip for “stand up” mounting is also provided.
Despite its compactness, the MMA flowmeter features a 2˝ scale which combined with
precision molding, enables highly repeatable readings to be made to within ±4%
accuracy.
144
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
Where a compact flowmeter is required to measure small volume air flows, the Model MMF
is recommended. Easy to mount, they require a minimum of panel space. A white back on
the flow tube makes the ball float easy to see. The 1-1/2˝ scale is highly visible and easy to
read. Scale graduations are printed on aluminum alongside the flow tube (not on it), so the
position of ball float is instantly visible.
The Model MMF’s bezel type mounting is modern, attractive and quickly installed from the
front of instrument panel. Two 1/4˝ OD mounting-connection tubes are integrally molded
with flowmeter body. They can be back connected to flexible rubber or plastic tubing and
held in place with two spring retainers which are furnished. If preferred, connections
may be made to metal or rigid plastic tubing with a double compression fitting or nylon
tube union such as Dwyer Part No. A-328.
Excellent repeatability and ±10% accuracy make the MMF flowmeter an excellent value at
its low cost.
145_Layout 1 7/8/14 10:53 AM Page 145
Model MMA
Model MMF
SPECIFICATIONS
Service: Compatible gases and liquids.
Wetted Materials: Body: Nylon 12; O-rings: Buna-N (optional materials available);
Float: Black glass, K monel, stainless steel, tungsten carbide.
Temperature Limit: 130°F (54°C).
Pressure Limit: 100 psi (6.9 bar) with compression fitting. 50 psi (3.4 bar) with
tubing clamp.
Accuracy: ±4% full-scale.
Process Connection: 5/16 OD for push on rubber or plastic tubing with provided
spring tubing clamp. Connect to rigid tubing with double compression fitting.
Weight: 1 oz (28.35 g).
SPECIFICATIONS
Service: Compatible gases and liquids.
Wetted Materials: Body: Styrene acrylonitrile; Float: SS, black glass, nylon; Valve:
Polyurethane.
Temperature Limit: 125°F (51°C).
Pressure Limit: 50 psi (3.4 bar). Valve option: 10 psi (0.6 bar).
Accuracy: ±10% full-scale.
Process Connection: 1/4 OD for push on rubber or plastic tubing. Connect to
rigid tubing with compression fittings.
Weight: 0.5 oz (14.17 g).
How To Order
MMA-Range No.
Example: MMA-4
Series MMA with .5-5 SCFH Air Range
How To Order
MMF-Range No.-Valve
Example: MMF-1-PV
Series MMF with .1-1 SCFH Air Range with Valve
Model MMA
A-327, 5/16 Union
MMA tubing connections secured by
clamp. •StandupŽ mounting clip shown.
Range
No.
30
31
32
33
35
36
37
38
Model MMF Mini-Master® Ranges
Range SCFHAir Range Number
.1 to 1
1
.2 to 2
2
1 to 10
10
5 to 50
50
10 to 100
100
Flowmeters, Variable Area
Range GPH
Water
1 to 8
1 to 16
4 to 40
5 to 60
CC/Min. Water
5 to 50
10 to 150
20 to 200
50 to 500
LPM Water
.1 to 1.1
.25 to 2.5
.3 to 3.5
FLOW
Model MMA Mini-Master® Ranges
Range
Range
Range Range
LPMAir No.
SCFHAir No.
.2 to 1.2 20
.5 to 2.5 3
.25 to 2.5 21
.5 to 5
4
.5 to 5
1 to 10
22
5
1 to 10
2 to 20
23
6
2.5 to 25 24
5 to 50
7
5 to 50
10 to 100 8
25
10 to 100 26
20 to 200 9
15 to 150 27
30 to 300 10
Model MMF-X, Standard MMF
Model MMF-X-PV, MMF with bottom mount valve
Model MMF-X-TMV, MMF with top mount valve
A-328, 1/4 Union
OPTION
-NIST, NIST traceable calibration certificate
40
41
42
Spring retainers on connection tubes
secure
panel
mounted
MMA.
Compression union, P/N A-327 shown.
Model MMF mounts easily from front of
panel. Drill two 9/32 or 5/16 dia. holes
in panel on 2-1/16 centers. Insert
mounting connector spuds. From rear,
slide on the two spring retainers
(furnished) and push on rubber or
plastic tubing.
Model MMF connections. Connector at
top, installed in panel, has retainer and
flexible tubing in place. Connector at
bottom shows alternative connection
with metal or rigid plastic tubing, using
a double compression nylon tube union
(as Dwyer Part No. A-328).
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145
146_Layout 1 7/8/14 10:54 AM Page 146
Series
RM
®
Rate-Master Flowmeters
Polycarbonate, Gas Flow from 0.05-1800 SCFH, Water Flows to 10 GPM
J
BACK
WIDTH
F
A
K
B
C
FLOW
E
D
G
I
FULL OPEN
L
Flowmeters, Variable Area
H
Model RMC
10 scale, 15-3/8 high
Model RMB-SSV
5 scale, 8-3/4 high
Model RMA-TMV
2 scale, 4-13/16 high
Flowmeter Dimensions
Model RMB
Model RMA
A 4 -9/16 [115.90]
8-1/2 [215.90]
B 3 [76.20]
6-7/16 [163.50]
1/4 NPT CONN.
1/8 NPT CONN.
C 1-5/8 [41.28]
3-15/16 [100.00]
10-32 MTG. HOLES 1/4-20 MTG. HOLES
D 3/8 [9.525]
5/8 [15.88]
E 1-1/16 [26.99]
1-7/8 [47.63]
F 1-3/16 [30.16]
1-3/4 [44.45]
G 11/16 [17.46]
1 [25.40]
H 61/64 [24.21]
1-7/16 [36.51]
I 1-3/8 [34.92]
1-13/16 [46.04]
J 3/4 [19.05)
1-1/4 [31.75]
K 4-13/16 [122.20]
8-3/4 [222.30]
L 1 [25.40]
1-1/2 [38.10]
Model RMC
15 -1/8 [384.20]
12 -1/4 [311.20]
1/2 NPT CONN.
8-3/4 [222.30]
3/8-24 MTG. HOLES
1 [25.40]
2-3/4 [69.85]
2-1/2 [63.50]
1-7/16 [36.51]
1-31/32 [50.00]
2-1/2 [63.50]
2 [50.80]
15-3/8 [390.50]
2-1/4 [57.15]
Scan here to watch product video
The Rate-Master flowmeter line of direct reading precision flowmeters incorporates
many unique user features at moderate cost. These low cost flowmeters are ideal for
general use.
®
Easy to read design — The direct reading scales eliminate troublesome conversions.
The scales are brushed aluminum, coated with epoxy and the graduations are on both
sides of the indicating tube. Special integral flow guides stabilize the float throughout the
range to keep it from hunting or wandering in the bore. The float is highly visible against
a white background.
Construction assures accuracy — All Rate-Master® flowmeter bodies are injection
molded of tough, clear, shatter-proof polycarbonate plastic around a precision tapered pin.
The result is accurate and repeatable readings. The single piece plastic body is mounted
to a stainless steel back bone into which pipe thread inserts are welded to absorb piping
torque. Precision metering valves of brass or stainless steel (specify BV or SSV on order)
are available as an optional extra and permit precise flow adjustments. For vacuum
applications, Model RMA units are available with top mounted valves (specify TMV). The
small Series RMA models are accurate within ±4% of full-scale reading; Series RMB within
±3%; large Series RMC within ±2%.
146
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
Installation is simple — The Rate-Master® Flowmeter can be neatly panel mounted to
keep flow tube centers in the same plane as the panel surface or surface mounted on the
panel by means of tapped holes in the backbone. When through-panel mounted, the bezel
automatically positions the instrument at the correct depth in the panel cutout. Surface
mounted units can also be held in place by the piping. All mounting hardware plus
installation and operating instructions are included.
Easy-to-Interchange bodies — Within a given Series Rate-Master® flowmeter bodies
can be instantly interchanged. Simply “unplug” the body from backbone and replace it with
another. O-rings provide a tight seal on inlet and outlet. Piping remains undisturbed.
Interchangeability is useful where different scale ranges are sometimes required at the
same location in the laboratory or plant.
Cleaning is easy — To release the plastic flowmeter body from the stainless steel
backbone, just remove four screws. Pipe thread flow connections remain undisturbed.
Remove the slide cover and the plug ball stop, clean the flow tube with soap and water and
reassemble. It’s that simple.
147_Layout 1 7/8/14 10:55 AM Page 147
How To Order
Series-Range No.(•XŽ)-Valve-Option
Example: RMA-2-SSV
Series RMA with .1-1 SCFH Air Range & Stainless Steel Valve
RMA
Model
RMA-X
RMA-X-BV
RMA-X-SSV
RMA-X-TMV
Description
Standard RMA
RMA with Brass Valve‚
RMA with Stainless Steel Valve‚
RMA with Top Mounted Valve*‚
RMB
Model
RMB-X
RMB-X-BV
RMB-X-SSV
Description
Standard RMB
RMB with Brass Valve‚
RMB with Stainless Steel Valve‚
SPECIFICATIONS
Service: Compatible gases and liquids.
Wetted Materials: Body: Polycarbonate; O-ring: Neoprene and Buna-N; Metal
parts: SS (except for optional brass valve); Float: SS, black glass, aluminum, K
monel, tungsten carbide depending on range.
Temperature Limit: 130°F (54°C).
Pressure Limit: 100 psi (6.9 bar).
Accuracy: RMA: 4%; RMB: 3%; RMC: 2% of full-scale.
Process Connection: RMA: 1/8; RMB: 1/4; RMC: 1/2 female NPT.
Weight: RMA: 4 oz (113.4 g); RMB: 13 oz (368.5 g); RMC: 39 oz (1105.6 g).
CAUTION
Dwyer® Rate-Master® flowmeters are designed to provide satisfactory long term
service when used with air, water, or other compatible media. Refer to factory for
information on questionable gases or liquids. Caustic solutions, anti-freeze
(ethylene glycol) and aromatic solvents should definitely not be used.
OPTIONS & ACCESSORIES
RMC
Model
RMC-X
RMC-X-BV
RMC-X-SSV
Model RMA-X-APF, Adjustable Pointer Flag for RMA Series
Model RMB-X-BPF, Adjustable Pointer Flag for RMB Series
Model RMC-X-CPF, Adjustable Pointer Flag for RMC Series
Regulator Kits …Available as optional extras for
both Rate-Master® Flowmeters and Visi-Float®
Flowmeters models. This view shows Model VFA
Visi-Float® flowmeter with integrally connected
constant
differential
pressure
regulator.
Recommended for use where inlet air pressure
fluctuates widely and constant flow is required.
The regulator maintains a constant pressure
differential of approximately 3 ± .15 psig. Supply
pressure must be at least 3 psig above the flowmeter
discharge to operate. The standard regulator may be
used with any Dwyer Series RM or VF flowmeter up
to 200 scfh. For higher flow rates consult the factory.
Model RKA, Regulator Kit for RMA Series
Model RK-RMB, Regulator Kit for RMB Series
OPTION
-NIST, NIST traceable calibration certificate
Specials … Special ranges, scales, mounting arrangements, etc., are available on
special order, or in OEM quantities.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
147
Flowmeters, Variable Area
Popular Ranges
Model RMA-2 Scale Model RMB-5 Scale
Model RMC-10 Scale
Range
Range Range
Range Range
Range
SCFH Air
No.
SCFH Air
No.
SCFH Air No.
.05-.5
1
.5-5
49+
5-50
101
.1-1
2
1-10
50
10-100
102
.2-2
3
3-20
51
20-200
103
.5-5
4
4-50
52
40-400
104
1-10
5
10-100
53
60-600
105
2-20
6
20-200
54
100-1000 106
5-50
7
40-400
55
120-1200 107
10-100
8
50-500
56
200-1800 108
15-150
9
60-600
57
SCFM Air
20-200
10
Gal. Water
1-10
121
CC Air/min.
per hour
2-20
122
5-50
151* 1-12
82
4-30
123
10-100
150* 1-20
83
Gal. Water
30-240
11
4-40
84
per hour
50-500
12
10-100
85
2-20
134
100-1000
13
SCFH & LPM Air
8-90
135
200-2500
14
1.2-10/0.6-5
50D
Gal.Water
LPM Air
3-20/1.5-9.5
51D
per minute
.5-5
26
4-50/2-23
52D
.1-1
141
1-10
21
10-100/5-50
53D
.2-2.2
142
2-25
22
20-200/5-95
54D
.4-4
143
5-50
23
GPH & LPM Water
.8-7
144
5-70
24
1-12/0.06-0.76
1.2-10
145
10-100
25
1-20/0.065-1.25
82D
CC Water/min.
10-100/0.8-6.2
83D
5-50
32
85D
10-110
33
20-300
34
Gal.Water/hr
1-11
42
2-24
43
4-34
44
5-50
45
*Accuracy ±8%
+Accuracy ±5%
‚Valve is designed for flow adjustment only, not intended to be used as an
open/shut-off valve.
FLOW
Description
Standard RMC
RMC with Brass Valve‚
RMC with Stainless Steel Valve‚
*Top mounted metering valves provide same precision
construction but for vacuum applications.
RMAmodels only.
Adjustable pointer flags … Red lined pointer flags
provide quick visual reference to a required flow level.
Of clear plastic, they snap into place inside bezel and
slide to desired level.
148_Layout 1 7/8/14 10:55 AM Page 148
Series
VF
®
Visi-Float Flowmeters
Used to Indicate or Manually Control Air or Water Flow
F
L
M
DWYER INSTRUMENTS, INC.
MICHIGAN CITY, IND.
A
B
K
C
E
FLOW
D
Model VFB
Model VFA-SSV
M
Flowmeter Dimensions
Model VFB
Model VFA
6-1/2 (165.1)
A 4 (101.6)
5-1/2 (139.7)
B 3 (76.20)
1/8 NPT CONN. 1/8 NPTCONN.
3-1/2 (88.90)
C 1-5/8 (41.28)
10-32 THD
10-32 THD
1/2 (12.70)
D 1/2 (12.70)
E 1-3/16 (30.16) 1-1/2 (38.10)
1-1/4 (31.75)
F 1-1/4 (31.75)
I 2-1/16 (52.39) 2-1/16 (52.39)
OPEN
OPEN
K 4-3/32 (104.0) 6-11/16 (169.9)
1-3/8 (34.93)
L 1 (25.40)
7/8 (22.23)
M 7/8 (22.23)
1/8 NPT
1/8 NPT
3/32 (2.381)
N 3/32 (2.381)
N
I
FULL OPEN
Flowmeters, Variable Area
Scan here to watch product video
The Visi…Float flowmeter bodies are cut and precision machined from solid, clear
acrylic plastic blocks. This construction not only produces a handsome finished product,
but permits complete visual inspection. As a result, the Visi-Float® flowmeters are
especially popular for medical and laboratory equipment applications.
®
Scales are easy to read — The front scale location and white background provides
excellent visibility. The direct reading scales are hot stamped into the plastic and will not
wear off. Mid–range calibration is established with a master flowmeter. Accuracy is ±5%
of full-scale for VFA models, ±3% for VFB. Scales average 2" long on the VFA models, 4˝
long on VFB.
Durable and attractive construction — The machined acrylic bodies of the Visi–Float®
flowmeters are practically unbreakable. Fabrication is backed by over 60 years of
experience in acrylic instrument machining. The tapered bore is precision machined to a
smooth surface that provides perfect visibility of the indicating float. The VFA and VFB
models are available with either brass or stainless steel inlet and outlet connections and
are tapped for 1/8˝ NPT thread. VFB models 85 and 86 have either 1/4˝ back or 3/8˝ end
connections. All standard models employ Buna–N O-rings for leak proof operation and are
available with either back or end connections for horizontal or vertical piping. Precision
metering valves in brass or stainless steel are available for most VFA and VFB models.
Easy installation — All Visi–Float® flowmeters have metal mounting inserts on rear for
panel mounting. They can also be supported directly by system piping.
148
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
SPECIFICATIONS
Service: Compatible gases & liquids.
Wetted Materials:
Body: Acrylic plastic;
O-ring: Buna-N (fluoroelastomer available);
Metal parts: Brass standard, SS optional;
Float: SS, black glass, aluminum, K monel depending on range.
Temperature & Pressure Limits:
Without Valve: 100 psig (6.9 bar) @ 150°F (65°C); 150 psig (10 bar) @ 100°F
(38°C);
With Valve: 100 psig (6.9 bar) @ 120°F (48°C).
Accuracy: VFA = 5% of full-scale; VFB = 3% of full-scale.
Process Connection: 1/8 female NPT. VFB ranges 85 and 86 have 1/4 NPT
back connections or 3/8 NPT end connections. These ranges not available with
brass valves.
Scale Length: VFA 2 typical length; VFB 4 typical length.
Mounting Orientation: Mount in vertical position.
Weight: VFA: 4.0 to 4.8 oz (.11 to .14 kg); VFB: 7.2 to 8.8 oz (.20 to .25 kg).
149_Layout 1 7/8/14 10:55 AM Page 149
How To Order
Series„Range No. (•XŽ)„Valve„Option
Example: VFA-9-BV
Series VFA with 20-200 SCFH Air Range & Brass Valve
OPTIONS & ACCESSORIES
Special Multi-Column Visi-Float® Flowmeters
Perfect for OEM applications, Visi-Float® flowmeters can be custom made
with up to 10 columns in a single block of acrylic plastic.
Available with or without valves. Consult factory for more information.
VFA
Model
VFA-X
VFA-X-SS*
VFA-X-BV‚
VFA-X-SSV‚
VFA-X-EC
VFA-X-EC-SS
Description
Standard VFA
VFA with Stainless Metal Wetted Parts
VFA with Brass Valve
VFA with Stainless Steel Valve
VFA with End Connections
VFA with End Connections and Stainless
Steel Metal Wetted Parts
VFB
Model
VFB-X*
VFB-X-SS
VFB-X-BV
VFB-X-SSV
VFB-X-EC
VFB-X-EC-SS
Description
Standard VFB
VFB with Stainless Metal Wetted Parts
VFB with Brass Valve
VFB with Stainless Steel Valve
VFB with End Connections
VFB with End Connections and Stainless
Steel Metal Wetted Parts
Popular Ranges
Model VFB „ 4 Scale
Range No. Range SCFH Air
50
.3-3
91+
1-10
+
51
2-20
52
4-40
53+
10-100
54+
10-150
+
55
20-200
SCFM Air
90
.3-3
CC/Min. Air
60
100-1000
Range No.
21
22
23
24
25
26
27
Range LPM Air
.06-0.5
.15-1
.6-5
1-10
3-25
6-50
10-100
41
42
43
44
Gal. Water per hour
.6-5
2-10
3-20
8-40
OPTIONS
-PF, Red ABSPlastic Pointer Flag
-VIT, Fluoroelastomer O-rings
-NIST, NIST traceable calibration certificate
Range No.
65
66
67
68
69
82
80+
83+
84
81
85*
86*
+
Model RKA, Regulator Kit for VFA Series
Model RK-VFB, Regulator Kit for VFB Series
LPM Air
.2-4
1-10
1-20
3-30
4-40
CC/Min. Water
2-30
GPH Water
.5-12
1-20
6-40
6-60
GPM Water
.2-2
.6-5
For dual range models in English and Metric add •DŽ to end of Range No.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
149
Flowmeters, Variable Area
Model VFA „ 2 Scale
Range No. Range SCFH Air
.1-1
1
.2-2
2
.6-5
3
1-10
4
2-20
5
4-30
6
5-50
7
10-100
8
20-200
9
CC Water per min.
6-50
32
10-100
33
20-200
34
Regulator Kits …Available as optional extras for
both Rate-Master® Flowmeters and Visi-Float®
Flowmeters models. This view shows Model VFA
Visi-Float® flowmeter with integrally connected
constant
differential
pressure
regulator.
Recommended for use where inlet air pressure
fluctuates widely and constant flow is required.
The regulator maintains a constant pressure
differential of approximately 3 ± .15 psig. Supply
pressure must be at least 3 psig above the flowmeter
discharge to operate. The standard regulator may be
used with any Dwyer Series RM or VF flowmeter up
to 200 scfh. For higher flow rates consult the factory.
FLOW
*Shown model
‚Valve is designed for flow adjustment only, not intended to be
used as an open/shut-off valve.
OEMSpecials … Special flowmeter designs can be supplied to meet a wide range
of requirements and specific applications. These include: on-off plunger and pushto-test valves, special gas or fluid calibration, special ranges, scales, name brand or
other identification. Pointer flags can be furnished for instant visual reference. For
specific information, please supply an outline of your requirements.
150_Layout 1 7/8/14 10:56 AM Page 150
Series
VFC
&
VFCII
®
Visi-Float Flowmeters
Used to Indicate Air or Water Flow
1-3/4
[44.45]
1-1/32
[26.19]
2 NOM
[50.80]
1-1/2 HEX
[38.10]
1-1/2
[38.10]
1-1/8
[28.58]
11
[279.40]
WITH BACK
CONNECTIONS
1-1/8
10-1/2 [28.58]
[266.70]
4-1/2
[114.30]
8-1/2
[215.90]
1-1/2
[38.10]
FLOW
3
[76.20]
1-1/2
[38.10]
Flowmeters, Variable Area
VFCII with 1 MNPT
End Connections
VFC with 1 FNPT
End Connections
VFC with 1 FNPT
Back Connections
Scan here to watch product video
The accurate and durable VFC Visi-Float® flowmeter contains a stainless steel guide
rod and large diameter float for excellent stability and visibility in high flow rates. The
large 5˝ scale provides a ±2% full-scale accuracy for precision measurement required in
medical or laboratory applications. The VFC models have PVC 1˝ female NPT connections.
VFC II units are equipped with acetal thermoplastic 1˝ male NPT fittings. VFC II fittings
also include hex wrench flats to prevent stripped threads. All models have metal mounting
inserts on the back for panel mounting. Units may also be supported directly by system
piping.
How To Order
Series„Range No.„Option
Example: VFC-123-EC
Series VFC with 10-100 SCFM Air Range and 1 female NPT
End Connections
VFC
Model
VFC-X
VFCII-X
VFC-X-EC
VFCII-X-EC
Thread Type
1 FNPT
1 MNPT
1 FNPT
1 MNPT
Process Connection
Back
Back
In-Line End
In-Line End
Popular Ranges
Model VFC „ 5 Scale
Range No. Range SCFM Air
4-25
121
5-50
122
10-100
123
LPM Air
131
100-700
132
200-1400
133
300-2800
150
Range No.
141
142
143
151
152
153
Range GPM Water
.5-5
1-10
2-20
LPM Water
2-20
4-40
10-75
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
SPECIFICATIONS
Service: Compatible gases & liquids.
Wetted Materials:
Body: Acrylic plastic;
O-ring: Buna-N (fluoroelastomer available);
Metal parts: SS;
Float: SS.
Fittings: VFC:PVC; VFCII:Acetal thermoplastic.
Temperature & Pressure Limits: 100 psig (6.9 bar) @ 120°F (48°C).
Accuracy: 2% of full scale.
Process Connection: VFC: 1 female NPT back connections. End connections
optional; VFCII: 1 male NPT back connections. End connections optional.
Scale Length: 5 typical length.
Mounting Orientation: Mount in vertical position.
Weight: 24 to 25 oz (.68 to .71 kg).
OPTIONS
-VIT, Fluoroelastomer O-Rings
-FDA, 316 SS Float & Guide Rod (only available on VFCII with fluoroelastomer ORings)
-NIST, NIST traceable calibration certificate
151_Layout 1 7/8/14 10:57 AM Page 151
Series
UV
™
Ultra-View Polysulfone Flowmeter
Monitor Water Flow Rates from .25 to 40 GPM, Air Rates from 1 to 100 SCFM
5
18
16
4
14
12
[307.98]
12
3
15
[381.00]
10
2
8
6
1
4
2
2-1/2
[63.50]
17
[431.80]
1-7/16-18 UNEF
THREADS
1˝ NPT[M]
THREADS
IN-LINE
THREADS
1˝ NPT[F]
2-15/16
[74.51] 1-1/2
[38.10]
Shown with optional
Polycarbonate Shield
FLOW
Shown with optional
Polysulfone Fittings
Shown with optional
Polysulfone Fittings
Scan here to watch product video
APPLICATIONS
€ Monitor chill water flow
€ Reverse osmosis systems
€ Deionized water systems
€ Potable water systems
ACCESSORIES
A-801, Panel Mount Kit, Polysulfone Fittings
A-162, In-line Fitting Replacement Kit. Two 1 female NPT connection fittings
included in kit.
OPTIONS
UV-XXXX-SHD, Protective Polycarbonate Shield
UV-XX22, PVC 1 female NPT Fittings
UV-XXXX-NIST, NIST traceable calibration certificate
Model
UV-0112
UV-1112
UV-2112
UV-3112
UV-4112
UV-5112
Range (GPM water)
0.25-2.5 (1-9.5 LPM)
0.5-5.0 (2-19 LPM)
1.0-10.0 (4-38 LPM)
2.0-20.0 (8-76 LPM)
3.0-30.0 (12-112 LPM)
4.0-40.0 (20-150 LPM)
Model
UV-A112
UV-B112
UV-C112
UV-D112
Range (SCFM air)
1-13 (30-370 LPM)
2.5-28 (70-780 LPM)
5-50 (70-1400 LPM)
14-100 (400-2800 LPM)
SPECIFICATIONS
Service: Compatible liquids and gases.
Wetted Materials: Polysulfone body and fittings, fluoroelastomer O-rings and
virgin PTFE float.
Temperature Limits: 35 to 212°F (2 to 100°C); 35 to 130°F (2 to 54°C) for PVC
fitting option.
Pressure Limit: 150 psi (10.34 bar).
Accuracy: ±2% full scale @ 70°F ±2°F (21.1°C) and 14.7 psia (in line connection
rating only).
Repeatability: ±1% full scale @ 70°F ±2°F (21.1°C) and 14.7 psia (in line
connection rating only).
Process Connections: 1 female NPT. Optional 90° polysulfone elbow … 1 male
NPT.
Scale Length: 6 (152.40 mm) … 7 (177.80 mm), depending on model.
Fitting Torque: Maximum 22 ft - lb.
Weight: 1 lb (457 g) for 20 GPM range.
CAUTION: Ball valves can have a •water cannonŽ effect on opening, creating
pressure that exceeds the warranty ratings will damage the flowmeter. Series
UV Flowmeters are for indoor use only or areas without direct sunlight.
Polysulfone is adversely affected by ultraviolet light.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
151
Flowmeters, Variable Area
Setting a new standard in the industry, the Series UV Polysulfone Flowmeter is an
ultra pure, laboratory grade flowmeter (±2% FS accuracy) that measures flow in GPM and
LPM of water, air and other compatible media. The Series UV is designed to withstand
high temperatures up to 212˚F (100˚C) and high pressures up to 150 psi (10.34 bar). Highly
corrosion-resistant, this instrument is an excellent choice for monitoring many corrosive
media. Easy to install and to clean, the Series UV offers optional panel mount polysulfone
fittings and a protective polycarbonate shield.
152_Layout 1 7/8/14 10:58 AM Page 152
Series
LFMA
&
LFMB
Polycarbonate Flowmeters
In-Line or Panel Mount Meters
ø1-63/64
[50.40]
ø1-21/32
[42.07]
3-15/16
[100.1]
6-45/64
[170.26]
8-55/64
[225.03]
6-5/16
[160.34]
1/2 NPT
1/2 NPT
FLOW
LFMA
LFMB
LFMB
Scan here to watch product video
The New LFM Series Flowmeters are made of injection molded, heat and chemically
resistant polycarbonate bodies and fittings. Series LFM flow meters have dual scales
measuring in both GPM and LPM with 5% accuracy. A textured background on the body
enhances scale readability. Standard in-line models come with 1/2˝ male NPT process
connections while panel mount installation is available with 90° elbow fittings that include
panel lock nuts. Various other fittings are available.
Flowmeters, Variable Area
LFMA
Model
LFMA-01-A2
LFMA-02-A2
LFMA-03-A2
LFMB-04-A2
LFMB-05-A2
LFMB-06-A2
Range (GPM water)
0.1-1 (.5-4 LPM)
0.2-2 (1-7 LPM)
0.5-5 (1.8-18 LPM)
0.1-1 (.5-4 LPM)
0.2-2 (1-7 LPM)
0.5-5 (1.8-18 LPM)
ACCESSORIES
LFMA
A-560, 20 mm Metric Union Fittings-ABS
A-566, 1/2 male NPT Fittings-ABS
LFMB
A-561, 20 mm Metric Union Fittings-ABS
A-567, 1/2 male NPT Fittings-ABS
A-575, 1/2 male NPT with 90° Elbow Fittings-PVC
OPTION
For NISTtraceable calibration certificate, use order code NISTCAL-FL1.
152
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
SPECIFICATIONS
Service: Water.
Wetted Materials:
Body: Polycarbonate;
Flange nut: ABS;
Float stop: ABS;
O-rings: Fluoroelastomer;
Rod & float: 316 SS;
Connections: Metric union and male NPT fittings-ABS; 90° male NPT elbow
fittings-PVC.
Pressure Limit: 87 psi (6 bar) at 68°F (20°C); 90° elbow fittings 116 psi (8 bar) at
68°F (20°C).
Accuracy: ±5%.
Process Connection: LFMA: 1/2 male NPT. Optional 20 mm metric union; LFMB:
1/2 male NPT. Optional 20mm metric union or 1/2 male NPT with 90° elbow.
Weight: LFMA: 2 oz (56.7 g); LFMB: 3 oz (85.0 g).
CAUTION: Series LFM Flowmeters are for indoor use only or areas without
direct sunlight. Polycarbonate is adversely affected by ultraviolet light.
153_Layout 1 7/21/14 11:04 AM Page 153
Series
LFMC, LFMD,
LFME &LFMF
Polycarbonate Flowmeters
In-Line or Panel Mount Meters. New Adjustable Set Point Indicator
8-9/32
[210.34]
LFMC
LFMD
LFME
ø2-27/32
[72.23]
ø2-21/64
[59.13]
ø1-63/64
[50.40]
6-45/64
[170.26]
9-27/32
5-9/32 [250.03]
[134.14]
12-19/64
[312.34]
ø3-15/16
[100.01]
8-55/64
[225.03]
11-27/64
[290.12]
15-3/4
[400.05]
LFMF
1/2 NPT
LFMC
3/4 NPT
LFMD
2 NPT
1 NPT
LFME
LFMF
Scan here to watch product video
Range (GPM water)
0.25-2.5 (1-10 LPM)
0.5-5 (1.8-18 LPM)
0.8-8 (3-30 LPM)
0.8-8 (3-30 LPM)
1-10 (4-40 LPM)
1.2-12 (5-50 LPM)
2-20 (8-80 LPM)
2.5-25 (10-100 LPM)
2.5-25 (10-100 LPM)
5-45 (20-180 LPM)
7-70 (25-250 LPM)
Process Connection
1/2 male NPT
1/2 male NPT
1/2 male NPT
3/4 male NPT
3/4 male NPT
1 male NPT
1 male NPT
1 male NPT
2 male NPT
2 male NPT
2 male NPT
ACCESSORIES
LFMC
A-562, 20 mm Metric Union Fittings-ABS
A-567, 1/2 male NPT Fittings-ABS
A-568, 3/4 male NPT Fittings-ABS
A-576, 1/2 male NPT with 90° Elbow Fittings-PVC
LFMD
A-563, 32 mm Metric Union Fittings-PVC
A-569, 3/4 male NPT Fittings-Nylon
A-572, 3/4 female NPT Fittings-Nylon
A-577, 3/4 male NPT with 90° Elbow Fittings-PVC
LFME
A-564, 40 mm Metric Union Fittings-PVC
A-570, 1 male NPT Fittings-Nylon
A-573, 1 female NPT Fittings-Nylon
A-578, 1 male NPT with 90° Elbow Fittings-PVC
CAUTION: Series LFM Flowmeters are for indoor use only or areas without
direct sunlight. Polycarbonate is adversely affected by ultraviolet light.
LFMF
A-565, 63 mm Metric Union Fittings-ABS
A-571, 2 male NPT Fittings-Nylon
A-574, 2 female NPT Fittings-Nylon
OPTION
For NISTtraceable calibration certificate, use order code NISTCAL-FL1.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
153
Flowmeters, Variable Area
Model
LFMC-07-A2
LFMC-08-A2
LFMC-09-A2
LFMD-10-C2
LFMD-11-C2
LFME-12-F2
LFME-13-F2
LFME-14-F2
LFMF-15-I2
LFMF-16-I2
LFMF-17-I2
SPECIFICATIONS
Service: Water.
Wetted Materials:
Body: Polycarbonate;
Flange nut: ABS;
Float stop:
LFMC: ABS;
LFMD, LFME, LFMF: Polypropylene;
O-rings: Fluoroelastomer;
Rod & float: 316 SS;
Connections:
20 mm & 63 mm metric union fittings:ABS;
32 mm & 40 mm metric union fittings:PVC;
1/2 & 3/4 male NPT fittings for LFMC:ABS;
3/4 male and female NPT fittings for LFMD:PA66 nylon;
1 & 2 male NPT fittings:PA66 nylon.
Pressure Limit: 87 psi (6 bar) at 68°F (20°C); 90° elbow fitting 116 psi (8 bar) at
68°F (20°C).
Accuracy: ±5%.
Process Connection:
LFMC: 1/2 male NPT. Optional 20 mm metric union, 3/4 male NPT, or 1/2 male
NPT with 90° elbow;
LFMD: 3/4 male NPT. Optional 32 mm metric union, 3/4 female NPT, or 3/4
male NPT with 90° elbow.
LFME: 1 male NPT. Optional 40 mm metric union, 1 female NPT, or 1 male
NPT with 90° elbow;
LFMF: 2 male NPT. Optional 63 mm metric union or 2 female NPT.
Weight:
LFMC: 4 oz (113.4 g);
LFMD: 10 oz (283.5 g);
LFME: 15 oz (425.2 g);
LFMF: 40 oz (1.1 kg).
FLOW
The New LFM Series Flowmeters are made of injection molded, heat and chemically
resistant polycarbonate bodies and fittings. Series LFM flow meters have dual scales
measuring in both GPM and LPM with 5% accuracy. A textured background on the body
enhances scale readability. Standard in-line models come with 1/2˝ male NPT connections
for LFMC, 3/4˝ male NPT connections for LFMD, 1˝ male NPT connections for LFME
and 2˝ male NPT connections for LFMF. Panel mount installation is available with 90°
elbow fittings that includes panel lock nuts. Various other fittings are available.
154_Layout 1 7/8/14 10:59 AM Page 154
Variable Area Fluoropolymer Flowmeter
Series
VAT
In-Line, ±5% Accuracy, Chemically Inert
10
9
8
7
6
A
5
4
B
3
2
1
0
Constructed entirely of Fluoropolymers, the Series VAT Flowmeters are ideal for
high purity or corrosive liquid applications. Flowmeters feature a 0 to 10 scale for flow
indication. Each unit is individually leak tested to a leak integrity rating of 1 x 10-7 sccs
Helium or better. The Series VAT are designed for in-line mounting and include a removable
protective shield.
Flowmeters, Variable Area
FLOW
Model
Low Range
Valve
VAT-311
VAT-312
VAT-313
VAT-314
VAT-315
VAT-316
VAT-317
VAT-318
VAT-319
Model
No Valve
VAT-301
VAT-302
VAT-303
VAT-304
VAT-305
VAT-306
VAT-307
VAT-308
VAT-309
Connections
1/4 female NPT
1/4 female NPT
1/4 female NPT
1/4 female NPT
1/4 female NPT
3/8 female NPT
3/8 female NPT
3/8 female NPT
3/8 female NPT
High Range
Valve
VAT-6110
VAT-6111
VAT-6112
VAT-6113
VAT-6114
No Valve
VAT-6010
VAT-6011
VAT-6012
VAT-6013
VAT-6014
Connections
1/2 female NPT
1/2 female NPT
3/4 female NPT
3/4 female NPT
3/4 female NPT
Flow Rate
ml/min (gph)
125 (1.98)
250 (3.91)
400 (6.34)
500 (7.92)
1000 (15.85)
2000 (31.69)
2500 (39.62)
3000 (47.54)
5000 (79.23)
Dimensions
Connection
1/4
3/8
1/2
3/4
A
5-11/16 [144]
5-11/16 [144]
10-1/2 [267]
10-1/2 [267]
B
1-1/4 [31.8]
1-1/4 [31.8]
2 [50.8]
2 [50.8]
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials:
Flowtube: PFA;
Float and end fittings: PTFE;
Guide rods:PCTFE.
Temperature Limit: 250°F (121°C).
Pressure Limit: 100 psig (6.9 bar).
Accuracy: ±5% FS @ 70°F (21.1°C) and 14.7 psia (1 atm absolute).
Process Connections: See chart.
Leak Integrity: 1 x 10-7 sccs of helium.
Scale: 0 to 10 markings.
Mounting: Vertical, in-line.
OPTION
For NISTtraceable calibration certificate, use order code NISTCAL-FL1.
Flow Rate
L/min (gpm)
13 (3.43)
20 (5.28)
30 (7.93)
40 (10.57)
45 (11.89)
All Fluoropolymer Flowmeters
Series
TVA
75 mm and 125 mm, 10:1 Turndown, ±5% FS Accuracy
G
I NPT (F) .750
TYP.
C TYP.
H
A
B
D
E
F
Series TVA All Fluoropolymer Flowmeters offer solutions for measuring flow rates of
highly corrosive or ultra-pure liquids. Flowmeters are designed with 0 to 10 scale graduations
denoting a discrete flow rate.
Model
Valve
TVA1113
TVA1115
TVA1317
TVA1319
Model
Valve
TVA22110
TVA24112
TVA24114
154
Low Range
No Valve
TVA1103
TVA1105
TVA1307
TVA1309
No Valve
TVA22010
TVA24012
TVA24014
Length Connections
75 mm 1/4 female NPT
75 mm 1/4 female NPT
75 mm 3/8 female NPT
75 mm 3/8 female NPT
High Range
Length
125 mm
125 mm
125 mm
Flow Rate (H2O)
gph (ml/min)
6.34 (400)
15.9 (1000)
39.6 (2500)
79.2 (5000)
Flow Rate (H2O)
Connections
GPM (LPM)
1/2 female NPT 3.43 (13)
3/4 female NPT 7.93 (30)
3/4 female NPT 11.9 (45)
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
Model
TVA11XX
TVA13XX
TVA22XX
TVA24XX
A
4.97 [126]
4.97 [126]
8.72 [221]
8.47 [215]
B
0.56 [14]
0.56 [14]
0.88 [22]
1.00 [25]
C
1.06 [27]
1.25 [32]
1.75 [44]
1.75 [44]
D
3.35 [85]
4.65 [118]
4.57 [116]
5.95 [151]
E
1.25 [32]
1.50 [38]
2.00 [51]
2.25 [57]
F
6.16 [156]
6.16 [156]
10.4 [264]
10.4 [264]
G
1/4
3/8
1/2
3/4
Panel Mounting: Drill two holes: 3/4 dia. at 4.97 apart for 1/4 NPT
models, 7/8 dia. at 4.97 apart for 3/8 NPT models, 1 dia. at 8.72 apart for
1/2 NPT models, and 1-1/4 dia. at 8.47 apart for 3/4 NPT models (centerto-center).
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials:
Flowtube: PFA;
Float and end fittings: PTFE;
Guide rods: PCTFE.
Temperature Limit: 250°F (121°C).
Pressure Limit: 100 psig (6.9 bar).
Accuracy: ±5% FS @ 70°F (21.1°C)
and 14.7 psia (1 atm absolute).
Repeatability: ±0.25%.
Leak Integrity: 1 x 10…7sccs of helium.
Scales: 0 to 10 markings, 75 mm or
125 mm lengths.
Turn-down Ratio: 10:1.
Mounting: Vertical.
OPTION
For NISTtraceable calibration certificate, use order code NISTCAL-FL1.
155_Layout 1 7/21/14 9:06 AM Page 155
Series
VA
Variable Area Glass Flowmeters
65 mm and 150 mm, ±2% FS Accuracy, Interchangeable Flowtubes, PTFE Options
Panel Mounting: Drill two 5/8 dia. holes at 4.5 apart for 65 mm models
and 8.812 apart for 150 mm models (center-to center).
1-1/4
[31.75]
1-1/4
[31.75]
1/8 NPT
1/8 NPT
9-13/16
[249.24]
4-1/2
[114.3]
5-1/2
[139.7]
8-13/16
[223.84]
1/8 NPT
1/8 NPT
Scan here to watch product video
Max. Flow
Max. Flow
Flow Rate (Air)
scfh (ml/min)
0.104 (49)
0.307 (145)
0.220 (104)
0.633 (299)
0.43 (202)
1.1 (522)
2.09 (986)
4.12 (1946)
2.65 (1249)
5.34 (2520)
4.32 (2040)
8.45 (3990)
13.4 (6318)
25.5 (12058)
27.9 (13153)
52.3 (24680)
49.1 (23169)
89.2 (42094)
Flow Rate (H2O)
gph (ml/min)
0.009 (0.55)
0.038 (2.38)
0.028 (1.8)
0.122 (7.7)
0.041 (2.6)
0.19 (12.0)
0.325 (20.5)
0.881 (55.6)
0.428 (27)
1.125 (71)
0.63 (40)
1.71 (108)
2.33 (147)
5.77 (364)
4.9 (309)
11.81 (745)
8.27 (522)
19.97 (1260)
SS
Fittings
VA1243
VA1244
VA1245
VA1246
VA1247
VA1248
VA1249
VA12410
VA12411
VA12412
VA12413
VA12414
VA12417
VA12418
VA12419
VA12420
VA12421
VA12422
Brass
Fittings
VA1343
VA1345
VA1347
VA1349
VA13411
VA13413
VA13417
VA13419
VA13421
-
Float
Glass
SS
Glass
SS
Glass
SS
Glass
SS
Glass
SS
Glass
SS
Glass
SS
Glass
SS
Glass
SS
Metal Models (150 mm Scale)
Aluminum
Fittings
VA20429
VA20430
VA20433
VA20434
VA20435
VA20436
VA20437
VA20438
VA20439
VA20440
SS
Fittings
VA22429
VA22430
VA22433
VA22434
VA22435
VA22436
VA22437
VA22438
VA22439
VA22440
Brass
Fittings
VA23429
VA23433
VA23435
VA23437
VA23439
-
Float
Glass
SS
Glass
SS
Glass
SS
Glass
SS
Glass
SS
Max. Flow
Max. Flow
Flow Rate (Air)
scfh (ml/min)
0.792 (374)
1.725 (814)
4.9 (2313)
9.67 (4562)
8.07 (3807)
16.08 (7590)
18.38 (8678)
35.5 (16737)
49.9 (23564)
93.9 (44336)
Flow Rate (H2O)
gph (ml/min)
0.087 (5.5)
0.323 (20.4)
0.848 (54)
2.067 (130)
1.336 (84)
3.34 (217)
3.32 (210)
8.02 (506)
9.0 (568)
21.7 (1370)
PTFE Models (65 mm Scale)
With Valve
VA1545
VA1547
VA15411
VA15413
VA15417
VA15419
VA15421
Without Valve
VA1505
VA1507
VA15011
VA15013
VA15017
VA15019
VA15021
Float
Glass
Glass
Glass
Glass
Glass
Glass
Glass
Flow Rate (Air)
scfh (ml/min)
0.220 (104)
0.428 (202)
2.646 (1249)
4.322 (2040)
13.39 (6318)
27.9 (13153)
49 (23169)
Flow Rate (H2O)
gph (ml/min)
0.028 (1.8)
0.047 (2.95)
0.428 (27)
0.630 (39.7)
2.33 (147)
4.9 (309)
8.27 (522)
OPTION
For NISTtraceable calibration certificate, use order code NISTCAL-FL1.
PTFE Models (150 mm Scale)
With Valve
VA25425
VA25429
VA25431
VA25435
VA25437
Without Valve
VA25025
VA25029
VA25031
VA25035
VA25037
Float
Glass
Glass
Glass
Glass
Glass
Flow Rate (Air)
scfh (ml/min)
0.104 (49)
0.792 (374)
1.75 (825)
8.07 (3807)
18.39 (8678)
Flow Rate (H2O)
gph (ml/min)
0.01 (0.61)
0.087 (5.5)
0.262 (16.5)
1.34 (84.3)
3.32 (209)
ACCESSORIES
VA81, High precision valve, 316 SS, 0.42 scfh capacity
VA82, High precision valve, 316 SS, 0.85 scfh capacity
VA83, High precision valve, 316 SS, 2.12 scfh capacity
VA84, High precision valve, 316 SS, 4.87 scfh capacity
VA85, High precision valve, 316 SS, 13.14 scfh capacity
VA86, High precision valve, 316 SS, 45.55 scfh capacity
VA7, Acrylic tripod for single meter
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
155
Flowmeters, Variable Area
Metal Models (65 mm Scale)
Aluminum
Fittings
VA1043
VA1044
VA1045
VA1046
VA1047
VA1048
VA1049
VA10410
VA10411
VA10412
VA10413
VA10414
VA10417
VA10418
VA10419
VA10420
VA10421
VA10422
SPECIFICATIONS
Service: Compatible gases or liquids.
Wetted Materials:
Flowtube: Borosilicate glass;
Floats: Glass or SS (sapphire, Carboloy and tantalum are optional);
Float stops: PTFE;
End fittings: Anodized aluminum, 316 SS, brass or PTFE;
Packings: Fluoroelastomer;
O-rings: Buna-N on aluminum models and brass models, fluoroelastomer on
SS models, PTFE on VAX5XX models.
Temperature Limits: 250°F (121°C); VAX5XX: -15 to 150°F (-26 to 65°C).
Pressure Limits: 200 psig (13.8 bar); VAX5XX: 100 psig (6.7 bar).
Accuracy: ±2% FS @ 70°F (21.1°C) and 14.7 psia (1 atm absolute); VA1042,
VA1243, VA1343, VA25425, VA25025: ±5% FS @ 70°F (21.1°C) and 14.7 psia
(1 @ absolute).
Repeatability: ±0.25% full-scale.
Leak Rate: 1 x 10-7 sccs of helium.
Scales: Universal 65 mm or 150 mm with correlation charts.
Turn-down Ratio: 10:1.
Connections: Two 1/8 female NPT.
Mounting: Vertical.
Valve: 6-turn needle (standard), optional 16-turn high precision valve.
Valve Orifice: Acetal on aluminum models and brass models, PCTFE on stainless
steel models, PTFE on VAX5XX models.
FLOW
Accurately measure flow rates of air, water, and other commonly used gases with the
Series VA Variable Area Glass Flowmeters. Flowmeters are designed with an easy-to-read
universal mm scale and supplied with a correlation chart containing calibration data for air
and water. Correlation data for other gases and liquids are available. Permanently fused
ceramic scale with vertical locator line reduces parallax and eye fatigue. Thick polycarbonate
front shield protects tube from breakage and also serves as a magnifying lens to enhance
reading resolution.
Glass flowmeters are suitable for metering carrier gases, liquid and gas measurement in
pilot plants, laboratories, process flow and level indicating. Units are equipped with a standard
6-turn needle valve for flow rate control. High precision metering valves with non-rising
stems (sold separately) are available for high sensitivity control and resolution – particularly
suited for very low flow rates.
Flowmeters are shipped completely assembled and ready for panel mounting. Use an optional
acrylic tripod base to convert to self-standing bench mounting.
156_Layout 1 7/8/14 11:00 AM Page 156
Direct Reading Glass Flowmeters
Series
DR
65 mm and 150 mm, ±5% FS Accuracy, Interchangeable Flowtubes
Panel Mounting: Drill two 5/8 dia. holes at 4.5 apart for 65mm models
and 8.812 apart for 150 mm models (center-to center).
1
[25.4]
1/8 FNPT
1
[25.4]
1
[25.4]
2X 1/2 HEX
9/16-18 THD
1/8
[3.18]
1/8
[3.30]
5-1/2
[139.7]
9-13/16
[249.24]
9-13/16
65 MM [249.24]
2X 7/8 HEX
SCALE
LOCKNUT
LENGTH
8-13/16
[223.84]
3-1/4
[82.55]
4-1/2
[114.3]
Ø23/32
[Ø18.29]
2X END
CAP
1/2
[12.7]
5/8
[15.88]
1-1/4
[31.75]
OPEN
1-1/4
[31.75]
5/8
[15.88]
FLOW
1
[25.4]
Flowmeters, Variable Area
5-29/32
150 MM
SCALE
LENGTH
1/2
[12.7]
5/8
[15.88]
1-1/4
1 [31.75]
OPEN
[25.4]
7-9/16
[192.07]
8-13/16
[223.84]
1/8
FNPT
5/8
[15.88]1/2
[12.7] 5/8
[15.88]
150 MM
SCALE
LENGTH
ø23/32
[ø18.29]
1-1/4
1 [31.75]
OPEN
[25.4]
5/8
[15.88]
1-1/4
[31.75]
Scan here to watch product video
Use Series DR Glass Flowmeters to accurately measure flow rates of air or water with
the convenience of a direct reading scale. Permanently fused ceramic scale has integral float
guides for optimum float performance. Reflective plastic background and 1.5 X magnification
lens reduces eye fatigue and allows for more accurate readings. Units include a safety blowout back panel for additional protection. Flowmeters are shipped completely assembled and
include standard panel mounting hardware for quick installation.
APPLICATIONS
Glass flowmeters are suitable for metering gases or liquids for film processing, paper
manufacturing, chemical processing, semiconductor industry, water and air pollution
analysis equipment, metals processing, industrial fuel and energy conservation,
cylinder gas metering, and general laboratory and industrial applications.
Add suffix •MŽ for metric scale.
*Denotes glass float.
•Metric models use ccm as unit of measure for water and LPM for air.
SPECIFICATIONS
Service: Compatible gases or liquids.
Wetting Materials:
Flowtube: Borosilicate glass;
Float: 316 SS (black glass as indicated);
Float stops: PTFE;
End fittings: Anodized aluminum or 316 SS;
O-rings: Buna-N on aluminum models and fluoroelastomer on SS models.
Temperature Limit: 250°F (121°C).
Pressure Limit: 250 psig (17 bar).
Accuracy: ±5% FS @ 70°F (21.1°C) and 14.7 psia (1 atm absolute).
Repeatability: ±0.25% of scale reading.
Scales: Direct reading 65 mm or 150 mm scales for air or water.
Turn-down Ratio: 10:1.
Connection: 1/8 female NPT.
Mounting: Vertical.
Valve: 6-turn needle (standard on models with valve).
OPTION
For NISTtraceable calibration certificate, use order code NISTCAL-FL1.
Model (65 mm Scale)
Without Valve
Aluminum SS
With Valve
Aluminum SS
DR10010*
DR10022
DR10030*
DR10042
DR12010*
DR12022
DR12030*
DR12042
DR10410*
DR10422
DR10430*
DR10442
DR12410*
DR12422
DR12430*
DR12442
DR10062
DR10070*
DR10082
DR10090*
DR100102
DR12062
DR12070*
DR12082
DR12090*
DR120102
DR10462
DR10470*
DR10482
DR10490*
DR104102
DR12462
DR12470*
DR12482
DR12490*
DR124102
DR100120* DR120120*
DR100132 DR120132
DR100140* DR120140*
DR100152 DR120152
DR100172 DR120172
DR100180* DR120180*
DR100192 DR120192
DR100200* DR120200*
DR100212 DR120212
156
Max. Flow
Flow Rate
(Air)
scfh (sccm)
0.24 (130• )
0.65 (300• )
1.1 (500• )
2.2 (1000• )
scfh (LPM)
5.6 (2.1)
11 (5)
20 (9.5)
55 (24)
100 (50)
DR104120* DR124120* …
DR104132 DR124132 …
DR104140* DR124140* …
DR104152 DR124152 …
DR104172 DR124172 …
DR104180* DR124180* …
DR104192 DR124192 …
DR104200* DR124200* …
DR104212 DR124212 …
Flow Rate
(H2O)
…
…
…
…
…
…
…
…
…
gph (sccm)
0.02 (1.5)
0.1 (6.5)
0.13 (8)
0.36 (24)
0.9 (55)
2.2 (140)
4.4 (280)
10 (600)
24 (1500)
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
Model (150 mm Scale)
Without Valve
With Valve
Aluminum SS
Aluminum SS
Max. Flow
Flow Rate (Air) Flow Rate
(H2O)
scfh (sccm)
…
DR20032
DR22032 DR20432
DR22432 0.33 (160)
…
DR20082
DR22082 DR20482
DR22482 0.54 (270)
…
DR200132 DR220132 DR204132 DR224132 2 (840)
scfh (LPM)
…
DR200182 DR220182 DR204182 DR224182 3.8 (1.8)
…
DR200232 DR220232 DR204232 DR224232 10 (4.8)
…
DR200282 DR220282 DR204282 DR224282 16 (7.5)
…
DR200332 DR220332 DR204332 DR224332 35 (16)
…
DR200382 DR220382 DR204382 DR224382 90 (44)
gph (sccm)
DR200432 DR220432 DR204432 DR224432 …
0.05 (3.2)
DR200482 DR220482 DR204482 DR224482 …
0.075 (4.6)
DR200532 DR220532 DR204532 DR224532 …
0.34 (21)
DR200582 DR220582 DR204582 DR224582 …
0.75 (46)
DR200632 DR220632 DR204632 DR224632 …
2.2 (140)
DR200682** DR220682 DR204682** DR224682 …
3.6 (230)
DR200732 DR220732 DR204732 DR224732 …
7.5 (480)
DR200782 DR220782 DR204782 DR224782 …
21 (1300)
**Not available in metric scale.
157_Layout 1 7/8/14 11:01 AM Page 157
Series
IF
Industrial Direct Reading Flowmeter
Air/Water Direct Reading Scale, 304 SS Protective Shield, ±3% Accuracy
Dimensions
Tube Female
Size
NPT
1 and 2 1/2
3 and 4 1
5 and 6 2
[B] [D]
[A]
Ideal for industrial applications, the Series IF Industrial Direct Reading Flowmeters
are fully enclosed in a brushed SS case. The flowmeters can directly measure flow rates
up to 116 GPM (439 lpm) for water and 250 SCFM (7080 lpm) for air service. The
detachable, clear 3/16˝ thick polycarbonate front shield provides protection at maximum
rated temperature and pressure. Each unit is designed with female NPT end fittings for
easy in-line installation.
OPTION
For NISTtraceable calibration certificate, use order code NISTCAL-FL1.
Maximum Flow Rate
Water
Air
GPM(LPM) SCFM(LPM)
0.25 (0.95) 1.2 (35)
0.36 (1.3) 1.7 (50)
0.76 (3.0) 3.3 (90)
1 (3.7)
4.2 (120)
1.5 (5.6)
6.5 (180)
2.2 (8.2)
8.5 (250)
3.8 (14)
16 (475)
5 (18)
21.5 (650)
6 (20)
25.5 (725)
7.4 (27.5) 30 (900)
9.6 (35)
40 (1200)
Tube
Size
1
1
1
2
2
2
3
3
4
4
4
Pressure Drop
(in H2O)
…
2
5
6
…
10
10
14
5
6
10
Series
RSF
Model
IF2711
IF2712
IF2713
IF2714
IF2715
IF2716
IF2717
IF2718
IF2719
IF2720
IF2721
B
9.54 [242]
13.69 [348]
15.59 [396]
C
2.25 [57.2]
3.75 [95.3]
5.25 [133]
D
8.04 [204]
10.50 [267]
11.55 [293]
[C]
SPECIFICATIONS
Service: Liquids or gases.
Wetted Materials:
Flowtube: Borosilicate glass; float,
guide rods, float stops, end;
Fittings: 316 SS;
O-Rings: Fluoroelastomer.
Temperature Limit: 200°F (93°C).
Pressure Limit: 200 psi (13.8 bar);
125 psi for tube size 5 & 6.
Maximum Flow Rate
Air
Water
GPM(LPM) SCFM(LPM)
47.5 (1400)
11(40)
62 (1800)
14 (50)
90 (2600)
20 (75)
90 (2550)
22 (83)
…
26 (98)
160 (4531)
41 (155)
180 (5098)
44 (167)
245 (6938)
60 (227)
250 (7080)
61 (231)
…
86 (326)
116 (439) …
Tube
Size
4
4
4
5
4
6
5
6
5
6
6
Accuracy: ±3% of full-scale.
Repeatability: ±0.5% of full-scale.
Turndown Ratio: 10:1.
Scale: Dual scale GPM and SCFM.
Process Connection: See table.
Mounting: Vertical.
Front Shield: Polycarbonate.
Side Panels: 304 SS.
Pressure Drop
(in H2O)
13
24
39
16
70
5
30
16
40
25
45
FLOW
Model
IF2700
IF2701
IF2702
IF2703
IF2704
IF2705
IF2706
IF2707
IF2708
IF2709
IF2710
A
2 [50.8]
3.5 [89]
5 [127]
Dual, Rotatable Direct Reading Scales for Air and Water
3/8-18 NPT TYP 2 PLACES
10-3/8
[263.53]
3/8-18 NPT TYP 2 PLACES
10-3/8
[263.53]
9-15/32
[240.51]
11-1/8
[282.58]
3/4
[19.05]
Series RSF Flowmeters are designed with unique rotatable scales of dual, air-water direct
reading graduations. Flow rate is indicated in SCFM and SLPM for air and GPM and LPM
for water. Graduations are marked on a rotating, polycarbonate tubeshield which also serves
to protect the borosilicate glass flowtube. Flowmeters include a reflective plastic background
and 1.5 X magnification lens to reduce eye fatigue and allow for more accurate readings. A
blow-out back panel provides additional protection in the event of breakage. Series RSF
Flowmeters are available in vertical in-line mounting or panel mounting. Units are shipped
completely assembled and include standard mounting hardware for quick installation.
Brass &SSVertical In-Line Meters
Without Valve
With Valve
SS
Brass
SS
Brass
RSF011
RSF012
RSF013
RSF014
RSF015
RSF111
RSF112
RSF113
RSF114
RSF115
RSF011V
RSF012V
RSF013V
RSF014V
RSF015V
RSF111V
RSF112V
RSF113V
RSF114V
RSF115V
Brass &SSPanel Mount Meters
Without Valve
With Valve
Brass
SS
SS
Brass
RSF021
RSF022
RSF023
RSF024
RSF025
RSF121
RSF122
RSF123
RSF124
RSF125
RSF021V
RSF022V
RSF023V
RSF024V
RSF025V
RSF121V
RSF122V
RSF123V
RSF124V
RSF125V
Max. Flow Rate
Air scfm Water GPM
(SLPM) (LPM)
5 (140) 1.2 (4)
10 (280) 2 (8)
15 (425) 3 (11.5)
20 (575) 4 (15)
30 (900) 5 (20)
Max. Flow Rate
Air scfm Water GPM
(SLPM) (LPM)
5 (140) 1.2 (4)
10 (280) 2 (8)
15 (425) 3 (11.5)
20 (575) 4 (15)
30 (900) 5 (20)
1-3/4
[44.45]
2
[50.80]
1-7/8 [47.63]
In-Line Meter
3/4
[19.05]
2
[50.80]
1-7/8
1-1/2
[47.63]
[38.10]
Panel Mount Meter
SPECIFICATIONS
Service: Compatible gases or liquids.
Wetted Materials:
Flowtube: Borosilicate glass;
Float: Brass/SS models: 316 SS; PTFE models: PTFE;
Float stops: Brass/SS models: 316 SS; PTFE models: PTFE;
End fittings: Brass/SS models: Brass or 316 SS; PTFE models: PTFE;
O-rings: Brass/SS models: Fluoroelastomer; PTFE models: PTFE.
Temperature Limit: 250°F (121°C). PTFE models: 150°F (65°C).
Pressure Limit: 150 psig (10.34 bar) @ 200°F (93°C). PTFE models: 100 psig
(6.7 bar).
Accuracy: ±7% FS.
Repeatability: ±0.25% FS.
Scale: Direct Reading 127 mm scales for air and water.
Turn-Down Ratio: 10:1.
Connections: Two 3/8 female NPT.
Mounting: Vertical or panel mount.
Panel Cutout: Drill two 7/8 diameter holes 9.0 (229 mm) apart (for panel mount
meters only).
Valve: 6-turn needle (standard on models indicating •with valveŽ).
OPTION
For NISTtraceable calibration certificate, use order code NISTCAL-FL1.
Note: For PTFE models contact the factory.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
157
Flowmeters, Variable Area
Rotatable Scale Flowmeters
158_Layout 1 7/15/14 2:53 PM Page 158
Series
HFPC & HFPS
Plastic Flowmeters
± 5% FS Accuracy, Mount in any Position
ø2-7/16
[61.91]
“L”
The New HFPC & HFPS Series Flowmeters are made of injection molded, polycarbonate
and polysulfone bodies. Series HFPC and HFPS flowmeters have dual scales measuring in
both GPM and LPM with ±5% full-scale accuracy. Models are available with 1/2˝, 3/4˝ or 1˝
male or female NPT connections. Female 1/2˝, 3/4˝ and 1˝ BSPP connections are also
available. Rugged construction allows these meters to handle maximum pressures of 325
psig and 200°F. Units can be mounted in any position, even applications with downward flow.
Flowmeters, In-Line
CAUTION: Series HFPC & HFPS Flowmeters are for indoor use only or areas
without direct sunlight. Polycarbonate & polysulfone are adversely affected by
ultraviolet light.
Series
Wetted
Parts
HF
PC
PS
Connection
Range
Option
-1
-2
-3
-4
-5
-6
-7
-8
-9
-1
-2
-3
-4
-BC
Series HFPlastic Flow Meters
Polycarbonate Body, Polysulfone
Connections
Polysulfone Body, Polysulfone
Connections
1/2 female NPT
3/4 female NPT
1 female NPT
1/2 male NPT Brass Connections Only
3/4 male NPT Brass Connections Only
1 male NPT Brass Connections Only
1/2 female BSPP
3/4 female BSPP
1 female BSPP
.5-5 GPM (1-19 LPM)
1-10 GPM (3.8-38 LPM)
2-15 GPM(7.5-55 LPM)
3-30 GPM (11-113 LPM)
Brass Connections
DIM •LŽ
7-11/16 [195.26]
7-5/32 [181.76]
8-1/32 [204.00]
7-9/16 [192.09]
8-3/32 [205.58]
7-9/16 [192.09]
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials: HFPC: Polycarbonate body, Buna-N seals, SS spring,
Polysulfone connections; HFPS: Polysulfone body, Buna-N seals, SS spring,
polysulfone connections.
Pressure Limit: 325 psig (22.4 bar).
Temperature Limit: HFPC: 200°F (93°C); HFPS: 250°F (121°C).
Accuracy: ±5% FS.
Repeatability: ±1% FS.
Pressure Loss: See chart.
Weight: Standard models 1 lb (453.6 g). Models with optional brass connections
2 lb (907 g).
TYPICAL PRESSURE DIFFERENTIAL
25
PRESSURE DIFFERENTIAL: PSID
FLOW
Meter Size
1/2 male
1/2 female
3/4 male
3/4 female
1 male
1 female
20
15
10
5
0
0
10
20
30
FLOW RATE: GPM
OPTION
For NISTtraceable calibration certificate, use order code NISTCAL-FL1.
158
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
40
50
159_Layout 1 7/8/14 11:02 AM Page 159
Series
HF
In-Line Flow Monitors
For Air, Water or Caustic Fluids, ±2.5% Accuracy, Unrestricted Mounting
[“A”]
DWYER INSTRUMENTS, INC.
MICHIGAN CITY, IN
[“C”]
Connection
Size
1/4 to 1/2 NPT
3/4 to 1 NPT
1-1/2 NPT
2 NPT
•AŽ
Reference
1-7/8 [48 mm]
2-3/8 [60 mm]
3-1/2 [89 mm]
3-1/2 [89 mm]
•BŽ
Wrench Flats
1-1/4 [32 mm]
1-3/4 [45 mm]
2-5/8 [67 mm]
2-5/8 [67 mm]
•CŽ
Reference
6-9/16 [167 mm]
7-1/8 [181 mm]
10-1/8 [257 mm]
12-5/8 [321 mm]
[“B”]
APPLICATIONS
HFFlow Monitors can be used to set flow rates, fluid motor and cylinder speeds.
Check pump high pressure performance, pressure relief valve settings, fluid handling
systems in agricultural, construction or industrial machinery, power tools and
equipment. Monitor petrochemical operations with brass or stainless steel models.
Industrial pneumatic systems air flow can be monitored with the HFA models which are
calibrated at 100 psig inlet pressure.
Brass body for water based fluids (non-steam):
Connection Size
1/2 female NPT
3/4 female NPT
3/4 female NPT
1 female NPT
1-1/2 female NPT
1-1/2 female NPT
2 female NPT
2 female NPT
Range, Water
GPM (LPM)
0.5-5.0 (1-19)
2-15 (7.5-55)
2-20 (7.5-75)
5-35 (19-130)
5-50(19-189)
10-100 (38-379)
8-75 (31-284)
20-150 (76-568)
Aluminum body for oil based fluids:
Connection
Range, GPM
Model
Size
(LPM) Oil
HFL-2-05 1/2 female NPT
0.5-5.0 (1-19)
HFL-4-25 1 female NPT
2-25 (7.5-95)
Flowmeters, In-Line
Model
HFB-2-05
HFB-3-15
HFB-3-20
HFB-4-35
HFB-5-50
HFB-5-100
HFB-6-75
HFB-6-150
SPECIFICATIONS
Service: Compatible gases or liquids.
Wetted Materials:
HFA: Aluminum casing, Buna-N seals, PTFE coated Alnico magnet, SS disk;
HFB:Brass casing, Buna-N seals, PTFE coated Alnico magnet, SS disk;
HFS: 303 SS casing, FKM seals with PTFE backup, PTFE coated Alnico
magnet, SS disk;
Maximum Viscosity:500 SSU.
TemperatureLimits: 240°F (116°C).
Pressure Limits:
HFA, HFB, HFL and HFH models:600 psig (41 bar) for air and gas, 3500 psig
(241 bar) for liquids;
HFS model:1000 psig (70 bar) for air and gas, 6000 psig (413 bar) for liquids.
Accuracy: ±4% FS over entire range; ±2.5% over center third of the measuring
range.
Repeatability: ±1% of full-scale.
Shipping Weight:
1/4 to 1/2 female NPTmodels; 2 lb (0.9 kg);
3/4 to 1 female NPT models: 3.5 lb (1.59 kg);
1-1/2 female NPT models: 11 lb (5 kg);
2 female NPT models: 13.5 lb (6.12 kg).
304 SS body for high-pressure fluids:
Range, Water
Connection
Model
GPM(LPM)
Size
HFS-2-02 1/2 female NPT
0.2-2.0 (0.75-7.5)
HFS-2-10 1/2 female NPT
0.5-10 (1.9-38)
Aluminum, Brass, and Stainless Steel for air and other non-corrosive gases:
Connection
Aluminum
Brass
Stainless Steel
(NPT female, dry seal)
HFA-1-001
HFB-1-001
HFS-1-001
1/4
HFA-1-002
HFB-1-002
HFS-1-002
1/4
HFA-1-003
HFB-1-003
HFS-1-003
1/4
HFA-1-004
HFB-1-004
HFS-1-004
1/4
HFA-8-001
HFB-8-001
HFS-8-001
3/8
HFA-8-002
HFB-8-002
HFS-8-002
3/8
HFA-8-003
HFB-8-003
HFS-8-003
3/8
HFA-8-004
HFB-8-004
HFS-8-004
3/8
HFA-2-001
HFB-2-001
HFS-2-001
1/2
HFA-2-002
HFB-2-002
HFS-2-002
1/2
HFA-2-003
HFB-2-003
HFS-2-003
1/2
HFA-2-004
HFB-2-004
HFS-2-004
1/2
HFA-3-003
HFB-3-003
HFS-3-003
3/4
HFA-3-004
HFB-3-004
HFS-3-004
3/4
HFA-3-005
HFB-3-005
HFS-3-005
3/4
HFA-3-006
HFB-3-006
HFS-3-006
3/4
HFA-4-003
HFB-4-003
HFS-4-003
1
HFA-4-004
HFB-4-004
HFS-4-004
1
HFA-4-005
HFB-4-005
HFS-4-005
1
HFA-4-006
HFB-4-006
HFS-4-006
1
HFA-9-007
HFB-9-007
HFS-9-007
1-1/4
HFA-9-008
HFB-9-008
HFS-9-008
1-1/4
HFA-5-007
HFB-5-007
HFS-5-007
1-1/2
HFA-5-008
HFB-5-008
HFS-5-008
1-1/2
Range scfm (lps)
1.5-12 (0.5-5.5)
4-23 (2-10)
5-50 (2.5-25)
10-100 (5-45)
1.5-12 (.5-5.5)
4-23 (2-10)
5-50 (2.5-25)
10-100 (5-45)
1.5-12 (.5-5.5)
4-23 (2-10)
5-50 (2.5-25)
10-100 (5-45)
5-50 (3-23)
10-100 (4-48)
15-150 (8-56)
30-330 (20-150)
5-50 (3-23)
10-100 (4-48)
15-150 (8-56)
30-330 (20-150)
30-470 (15-220)
150-900 (75-425)
30-470 (15-220)
150-900 (75-425)
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
FLOW
Low cost, Series HF In-Line Flow Monitors have a design based on a floating sharpedged orifice disk and variable area flow measurement to yield accuracy of ±2.5% over
center one-third of scale. This unique design allows accurate performance with fluid
viscosities up to 500 SSU. All internal wetted parts are contained inside a sealed metal
tubular casing assuring a virtually maintenance-free unit. Flowing media forces linear
motion of a spring loaded, sharp edge orifice disk and ring shaped transfer magnet which
both ride on a tapered center shaft. The transfer magnet drives a clearly visible magnet
follower located outside the flow tube, protected under the clear polycarbonate tube. A
ring on the magnet follower indicates flow rate on the direct reading scale. Rubber
bumpers are provided for external impact resistance.
Designed for single-direction flow, Series HF Monitors are recommended for use with system
filtration of at least 74 microns or a 200 mesh screen. Some applications may also require
magnetic filtration. These flowmeters do not require inlet or outlet straight plumbing and can
be mounted horizontally, vertically, or inverted.
159
160_Layout 1 7/8/14 11:02 AM Page 160
Series
PVF
&
CPF
PVC and CPVC Flowmeters
Perfect for Compatible Acids, Caustics and D.I. Water
G
REMOVAL CLEARANCE
H
A
ØL
NPT
ØK
B
OUT
I
HEX
CONNECTION NPT
F
C
E
PVF
FLOW
IN
J
D
Female NPT
Flange Version
G
REMOVAL CLEARANCE
2-1/2
[63.5]
2-1/2
[63.5]
5-23/32
[145.26]
5-23/32
[145.26]
Flowmeters, In-Line
H
A
ØL
NPT
B
ØK
F
E
C
D
Female NPT
Standard (NPT)
Range NPT A
00/10 3/4
11-1/32
29/40
[280.19]
11/17 1-1/2 16-15/16
41/51
[430.21]
18/22 3
24-11/32
52/56
[618.27]
23/28 4
26-43/64
57/62
[728.20]
B
3-25/64
[86.12]
4-1/4
[107.95]
7-29/32
[200.66]
9-13/16
[248.66]
C
2-53/64
[71.83]
4
[101.6]
7-29/32
[200.66]
9-13/16
[248.66]
Optional Flange
Option Range Flange
00/10 3/4
F1
29/40
11/17 1-1/2
F2
41/51
18/22 3
F3
52/56
23/28 4
F4
57/62
H
12-1/4
[311.65]
18-5/8
[473.19]
22-35/64
[572.64]
26-3/8
[669.86]
I
J
4-5/8
4-1/16
[117.6] [103.38]
5-15/16 5-11/16
[151.13] [144.78]
6-7/64 6-7/64
[155.18] [155.18]
7-1/2
7-1/2
[190.5] [190.5]
160
I
NPT
CPF
D
4-43/64
[118.67]
6-29/64
[163.91]
11-19/32
[294.63]
14-9/32
[362.96]
E
3-39/64
[91.68]
5-1/32
[127.79]
5-1/32
[127.79]
5-7/16
[138.17]
F
2-35/64
[64.69]
3-29/64
[87.71]
4-5/16
[109.22]
5-7/16
[138.17]
L
K
2-3/4 3-7/8
[69.85] [98.55]
3-7/8 5
[98.55] [127]
7-1/2
6
[152.4] [190.5]
7-1/2 9
[190.5] [228.6]
OUT
HEX
CONNECTION
G
3
[76.2]
5
[127]
5
[127]
5
[127]
# of Bolt Holes Flange Opening Diameter
(1-1/8)
4
4
(2)
4
(3-1/2)
8
(4-1/2)
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
IN
Flange Version
J
161_Layout 1 7/8/14 11:03 AM Page 161
The Series PVF & CPF Flowmeters are heavy bodied meters for corrosives and high
purity fluids. They are economically priced meters ideal for acids or de-ionized water
making them suited for water & wastewater treatment facilities. The flowmeters are
comprised of all plastic wetted components for maximum corrosion resistance. They have a
full-scale accuracy of ±2% and can be disassembled quickly without the meter being
removed from the pipeline for easy cleaning. The flowmeters are available with 3/4˝, 1-1/2˝,
3˝, and 4˝ female NPT connections. Optional flange connections are also available.
SPECIFICATIONS
Service: Compatible gases or liquids.
Wetted Materials: PVF: PVC, fluoroelastomer O-rings; CPF: CPVC, Buna-N Orings.
Temperature Limits: See operating limits chart.
Pressure Limits: See operating limits chart.
Accuracy: ±2% of full-scale.
Repeatability: ±1/2% of indicated flow rate.
Process Connections: 3/4, 1-1/2, 3, and 4 female NPT.
Weight: 3 lb (1.4 kg) for 3/4, 9 lb (4.1 kg) for 1-1/2, 14 lb (6.4 kg) for 3, and 18 lb
(8.2) for 4.
Water Service
Range
Connection
(GPM Water) (female NPT)
Model
Model
0.025-0.54 3/4
PVF-00
CPF-00
0.04-0.80
3/4
PVF-01
CPF-01
0.06-1.20
3/4
PVF-02
CPF-02
0.08-1.64
3/4
PVF-03
CPF-03
0.10-2.60
3/4
PVF-04
CPF-04
0.15-3.80
3/4
PVF-05
CPF-05
0.20-5.40
3/4
PVF-06
CPF-06
0.20-7.00
3/4
PVF-07
CPF-07
0.20-10.00 3/4
PVF-08
CPF-08
0.60-15.00 3/4
PVF-09
CPF-09
0.50-20.0
3/4
PVF-10
CPF-10
0.50-11.0
1-1/2
PVF-11
CPF-11
0.70-15.0
1-1/2
PVF-12
CPF-12
1.00-25.0
1-1/2
PVF-13
CPF-13
0.50-35.0
1-1/2
PVF-14
CPF-14
1.00-50.0
1-1/2
PVF-15
CPF-15
2.00-70.0
1-1/2
PVF-16
CPF-16
4.00-120
1-1/2
PVF-17
CPF-17
2.00-50.0
3
PVF-18
CPF-18
4.00-100
3
PVF-19
CPF-19
7.00-150
3
PVF-20
CPF-20
10.0-200
3
PVF-21
CPF-21
15.0-300
3
PVF-22
CPF-22
4.00-100
4
PVF-23
CPF-23
7.00-150
4
PVF-24
CPF-24
10.0-200
4
PVF-25
CPF-25
15.0-300
4
PVF-26
CPF-26
15.0-400
4
PVF-27
CPF-27
20.0-500
4
PVF-28
CPF-28
Note: For optional flange connections contact the factory.
Air Service
Range
(SCFM Air)
0.30-7.40
0.50-10.2
0.70-14.0
1.00-20.0
1.00-26.0
1.00-35.0
2.00-50.0
3.00-70.0
4.00-85.0
6.00-125
6.00-160
4.00-260
2.0-40.0
3.00-70.0
4.00-100
5.00-140
5.00-175
6.00-250
2.0-310
7.50-390
10.0-510
35.0-750
20.0-1000
30.0-600
40.0-1000
70.0-1750
100.0-2300
150.0-3500
40.0-1000
70.0-1750
100.0-2300
150.0-3500
150.0-4000
200.0-5000
Model
CPF-29
CPF-30
CPF-31
CPF-32
CPF-33
CPF-34
CPF-35
CPF-36
CPF-37
CPF-38
CPF-39
CPF-40
CPF-41
CPF-42
CPF-43
CPF-44
CPF-45
CPF-46
CPF-47
CPF-48
CPF-49
CPF-50
CPF-51
CPF-52
CPF-53
CPF-54
CPF-55
CPF-56
CPF-57
CPF-58
CPF-59
CPF-60
CPF-61
CPF-62
Flowmeters, In-Line
Model
PVF-29
PVF-30
PVF-31
PVF-32
PVF-33
PVF-34
PVF-35
PVF-36
PVF-37
PVF-38
PVF-39
PVF-40
PVF-41
PVF-42
PVF-43
PVF-44
PVF-45
PVF-46
PVF-47
PVF-48
PVF-49
PVF-50
PVF-51
PVF-52
PVF-53
PVF-54
PVF-55
PVF-56
PVF-57
PVF-58
PVF-59
PVF-60
PVF-61
PVF-62
FLOW
Operating Limits For Series PVFFlowmeters
Maximum Non-Shock Working Pressure, psig @ °F (bar @ °C)
70°F (21°C) 80°F (26°C) 100°F (37°C)
Body Size and Description
255 (15)
250 (17)
3/4 PVC-NPT connection
150 (10)
150 (10)
170 (11)
1-1/2 PVC-NPT connection
105 (7)
150 (10)
160 (11)
3 and 4 PVC-NPT connection
105 (7)
150 (10)
150 (10)
3/4 PVC-Flange connection
150 (10)
150 (10)
150 (10)
1-1/2 PVC-Flange connection
105 (7)
150 (10)
3 and 4 PVC-Flange connection 150 (10)
105 (7)
Connection
(female NPT)
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
1-1/2
1-1/2
1-1/2
1-1/2
1-1/2
1-1/2
1-1/2
1-1/2
1-1/2
1-1/2
1-1/2
3
3
3
3
3
4
4
4
4
4
4
120°F (48°C) 140°F (60°C)
90 (6)
50 (3)
65 (4)
40 (2)
65 (4)
40 (2)
65 (4)
50 (3)
65 (4)
40 (2)
65 (4)
40 (2)
Operating Limits For Series CPFFlowmeters
Maximum Non-Shock Working Pressure, psig @ °F (bar @ °C)
Body Size and Description
70°F (21°C) 80°F (26°C) 100°F (37°C) 120°F (48°C) 140°F (60°C)
3/4 CPVC-NPT connection
270 (19)
270 (19)
250 (17)
200 (10)
150 (10)
1-1/2 CPVC-NPT connection
180 (12)
180 (12)
170 (11)
145 (10)
115 (8)
3 and 4 CPVC-NPT connection 160 (11)
160 (11)
140 (10)
125 (9)
105 (7)
3/4 CPVC-Flange connection
150 (10)
150 (10)
150 (10)
135 (9)
110 (8)
1-1/2 CPVC-Flange connection 150 (10)
150 (10)
150 (10)
135 (9)
110 (8)
3 and 4 CPVC-Flange connection 150 (10)
150 (10)
150 (10)
135 (9)
110 (8)
160°F (71°C)
130 (9)
85 (6)
75 (5)
90 (6)
90 (6)
90 (6)
180°F (82°C)
80 (6)
50 (3)
50 (3)
70 (5)
70 (5)
70 (5)
210°F (98°C)
50 (3)
30 (2)
30 (2)
40 (2)
40 (2)
40 (2)
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
161
162_Layout 1 7/8/14 11:04 AM Page 162
Series
TVF
Total View Industrial Flowmeter
View Flow Rate from 360°, Water or Air Ranges
REMOVAL
G CLEARANCE
A
OUT
B
FLOW
CONNECTIONS
IN
C
TVFS
E
F
D
Flowmeters, In-Line
A
B
C
Female NPT Material
D
E
F
G
SS
9.36 2.81 2.68 4.00 1.35 2.72 3.00 3/4
SS
15.22 4.53 3.71 5.70 2.48 3.95 5.00 1-1/2
The Series TVF Total View Industrial Flowmeters are economically priced, tough,
simple and accurate meters for water, oils, coolants, compressed gases and other industrial
applications. The flowmeters have a full-scale accuracy of ±2% and can be disassembled
quickly without the meter being removed from the pipeline for easy cleaning. The TVFS is
constructed of T-316 SS and features a polysulphone sight tube. The Series Total View
Industrial Flowmeters are available with standard 3/4˝ and 1-1/2˝ female NPT connections.
The easy to read flowmeters provide 360° rotation of scale on plastic sight tube models.
Series
Range
Code
TVFS
-XX
T-316 Stainless Steel
See Range/ Connection Chart
(add Range code to Series
designator for model number)
*Contact factory for optional metric scales (liters/minute).
Available Ranges
Range
Code Range
0.025-0.545 GPM Water
-00
0.04-0.80 GPM Water
-01
0.06-1.20 GPM Water
-02
0.08-1.64 GPM Water
-03
0.10-2.60 GPM Water
-04
0.15-3.80 GPM Water
-05
0.20-5.40 GPM Water
-06
0.20-7.00 GPM Water
-07
0.20-10.0 GPM Water
-08
0.60-14.00 GPM Water
-09
0.50-23.00 GPM Water
-10
0.50-11.0 GPM Water
-11
0.70-15.0 GPM Water
-12
1.00-21.0 GPM Water
-13
0.50-35.0 GPM Water
-14
1.00-50.0 GPM Water
-15
2.00-70.0 GPM Water
-16
3.00-90.0 GPM Water
-17
4.00-120.0 GPM Water
-18
162
Connection
(female NPT)
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
Range
Code
-19
-20
-21
-22
-23
-24
-25
-26
-27
-28
-29
-30
-31
-32
Range
0.16-3.20 SCFM Air
0.50-5.00 SCFM Air
0.30-7.40 SCFM Air
0.50-10.2 SCFM Air
0.60-14.0 SCFM Air
1.00-20.0 SCFM Air
1.00-26.0 SCFM Air
1.00-35.0 SCFM Air
2.00-50.0 SCFM Air
3.00-70.0 SCFM Air
4.00-85.0 SCFM Air
6.00-125.0 SCFM Air
6.0-160.0 SCFM Air
4.00-260.0 SCFM Air
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
SPECIFICATIONS
Service: Compatible gases or liquids.
Wetted Materials: Body: SS; O-rings: Buna-N; Sight tube: Polysulfone.
Temperature Limits: see•Operating LimitsŽ table.
Pressure Limits: see•Operating LimitsŽ table.
Accuracy: ±2% of full-scale.
Repeatability: ±1/4% of indicated flow rate.
Process Connections: 3/4 and 1-1/2 female NPT.
Scale Length: 3.2 (8 cm) for 3/4 NPT connection, 5.2 (13 cm) for
1-1/2 NPT connection.
Weight: 4 lb (1.8 kg) for 3/4, and 12 lb (5.5 kg) for 1-1/2.
Operating Limits
Maximum Non-Shock Working Pressure psig @ °F (bar @ °C)
Connection 200°F (93°C) 250°F (121°C)
300°F (148°C)
3/4
300 (20.6)
250 (17.2)
115 (7.9)
1-1/2
180 (12.4)
145 (10.0)
70 (4.8)
Connection
(female NPT)
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
Range
Code
-33
-34
-35
-36
-37
-38
-39
-40
-41
-42
-43
-44
-45
Range
1.50-25.0 SCFM Air
1.00-31.0 SCFM Air
2.00-40.0 SCFM Air
3.0-70.0 SCFM Air
4.0-100.0 SCFM Air
5.0-140.0 SCFM Air
5.0-175.0 SCFM Air
6.00-250.0 SCFM Air
2.00-310.0 SCFM Air
7.50-390.0 SCFM Air
10.0-510.0 SCFM Air
35.0-750.0 SCFM Air
20.0-1000.0 SCFM Air
Connection
(female NPT)
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
163_Layout 1 7/8/14 11:04 AM Page 163
Series
SSM
All Metal Flowmeter
Available in Stainless Steel for Industrial Environments
15.640
[397]
10.780
[273]
4.026
[102]
2.680
[68]
3/4 Models
Range
0.2-5.4 GPM Water (0.75-21 LPM)
0.2-10 GPM Water (1-35 LPM)
0.5-23 GPM Water (0.5-90 LPM)
0.5-35 GPM Water (2-130 LPM)
1-50 GPM Water (8-200 LPM)
2-70 GPM Water (2-265 LPM)
4-120 GPM Water (15-450 LPM)
2-50 SCFM Air (4-85 M3/HR)
6-125 SCFM Air (10-210 M3/HR)
4-260 SCFM Air (10-440 M3/HR)
2-310 SCFM Air (10-530 M3/HR)
10-515 SCFM Air (20-880 M3/HR)
35-750 SCFM Air (40-1300 M3/HR)
20-1000 SCFM Air (40-1700 M3/HR)
Connection
3/4
3/4
3/4
1-1/2
1-1/2
1-1/2
1-1/2
3/4
3/4
3/4
1-1/2
1-1/2
1-1/2
1-1/2
Max. Pressure
Loss (in w.c.)
17.2
22.0
75.0
18.5
26.0
80.0
130.0
4.5
11.8
93.0
12.0
40.0
70.0
90.0
5.695
[145]
3.710
[94]
Ø 4.010
[101.8]
Ø 2.480
[63]
1-1/2 Models
SPECIFICATIONS
Service: Compatible liquids and gases.
Wetted Material: T316 SS, Alnico magnet, FKM O-ring.
Temperature Limits: 300ºF (149ºC).
Pressure Limits: 3/4 models: 1000 psig (68.9 bar) @ 250ºF (121ºC), 1-1/2
models: 800 psig (55 bar) @ 250ºF (121ºC).
Accuracy: ±2% full-scale.
Repeatability: ±0.5% of indicated flow rate.
Process Connections: 3/4 or 1-1/2 female NPT.
Scale Length: 3/4 models: 3.2 (8 cm); 1-1/2 models: 5.2 (13 cm).
Weight: 3/4 models: 5 lb (2.3 kg); 1-1/2 models: 13 lb (5.9 kg).
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
Flowmeters, In-Line
316 SS
Body
SSM-00
SSM-01
SSM-02
SSM-03
SSM-04
SSM-05
SSM-06
SSM-07
SSM-08
SSM-09
SSM-10
SSM-11
SSM-12
SSM-13
Ø 1.350 [34.3]
Ø 2.754
[70]
1-1/2˝ NPT
FLOW
Series SSM 316 All Metal Flowmeters are ideal for dirty or opaque fluids, high temperature
and high pressure service and harsh environments. The direct reading scale provides ±2%
accuracy on approximate 25 to 1 ranges, which are wider than typical variable area ball float
flow meters. The internal magnet carries the external flow indicator in a non-wetted enclosure.
Flowmeters can quickly be disassembled without removing the body from the pipeline for easy
cleaning. Pipe adaptors may be used to adapt to alternate size liner without altering accuracy.
4.503
[114]
3/4˝ NPT
124072
2.810
[71.4]
163
164_Layout 1 7/8/14 11:05 AM Page 164
Series
STFLO
Stainless Steel Flowmeters
Ideal for Steam Applications
15-21/32
[397.28]
10-21/32
[270.78]
OUT
2-13/16
[71.37]
OUT
2-11/16
[68.07]
4-1/32
[102.25]
4-1/2
[114.38]
3/4 NPT
Ø1-11/32
[34.29]
2-3/4
[69.95]
IN
1-1/2 NPT
Ø2-15/32
[62.99]
Ø4
[101.85]
IN 3-23/32
[94.23]
5-11/16
[144.65]
1-1/2 NPT Connection
3/4 NPT Connection
3
[76.20]
2-1/8
[53.59]
FLOW
3
[76.20]
6-13/16
[172.97]
4-1/2
[114.30]
Ø3-7/8
[Ø98.55]
Ø2-3/4
[Ø69.85]
5
[127.00]
3-11/16
[93.73]
3-9/16
[90.43]
3-7/8
[98.55]
3/4 Flange Connection
Flowmeters, In-Line
3-1/2
[88.91]
The STFLO Series Stainless Steel Flowmeters are ideal for high temperature and
high pressure applications such as steam. The direct reading scale provides ±2% accuracy.
These flowmeters can be quickly disassembled without removing the body from the pipeline
for easy cleaning.
Model
STFLO-00
STFLO-01
STFLO-02
STFLO-03
STFLO-04
STFLO-05
STFLO-06
STFLO-07
STFLO-08
STFLO-09
STFLO-10
STFLO-11
STFLO-12
STFLO-13
STFLO-14
Range
2.3-50 lb/Hr. Steam
5-100 lb/Hr. Steam
5-150 lb/Hr. Steam
9.5-240 lb/Hr. Steam
14-335 lb/Hr. Steam
18.5-405 lb/Hr. Steam
28.5-770 lb/Hr. Steam
28.5-1230 lb/Hr. Steam
7-100 lb/Hr. Steam
7-150 lb/Hr. Steam
14.5-335 lb/Hr. Steam
24-800 lb/Hr. Steam
28.5-1200 lb/Hr. Steam
14.5-1480 lb/Hr. Steam
35-1825 lb/Hr. Steam
Connection
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
3/4 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
1-1/2 NPT
Note: For ranges calibrated for water or air contact the factory.
OPTIONS
If you wish to change 3/4 NPT to 3/4 Flanged Connection, add F1 to the end of the
model number. If you wish to change 1-1/2 NPT to 1-1/2 Flanged Connection, add
F2 to the end of the model number.
F1, 3/4 150 lb ANSI flange connection
F2, 1-1/2 150 lb ANSI flange connection
164
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
4-31/32
[125.98]
5
[127.00]
1-1/2 Flange Connection
SPECIFICATIONS
Service: Compatible with liquids and gases.
Wetted Material: T316 SS, Alnico magnet, geothermal PTFE O-ring.
Temperature Limits: See chart.
Pressure Limits: See chart.
Accuracy: ±2% full-scale.
Repeatability: ±0.5% of indicated flow rate.
Process Connections: 3/4 or 1-1/2 female NPT, optional flange connections.
Scale Length: 3/4 models: 3.2 (8 cm); 1-1/2 models: 5.2 (13 cm).
Weight: 3/4 NPT models: 5.75 lb (2.6 kg); 1-1/2 NPT models: 14 lb (6.4 kg). 3/4
Flange: 9.75 lb (4.4 kg); 1-1/2 Flange: 22 lb (10 kg).
Maximum Non-Shock Working Pressure, psig (bar)
70°F 300°F 350°F 400°F 450°F 500°F 600°F
Meter Size 0°F
& Material (-18°C) (21°C) (148°C) (176°C) (204°C) (232°C) (260°C) (315°C)
1000 1000 1000
990
970
950
930
900
(3/4 NPT)
(68.9) (68.9) (68.9) (68.2) (66.8) (65.5) (64.1) (62)
800
800
790
780
770
760
750
(1-1/2 NPT) 800
(55)
(55) (55)
(54.4) (53.7) (53)
(52.4) (51.7)
165_Layout 1 7/15/14 3:06 PM Page 165
Series
RMV
®
Rate-Master Dial-Type Flowmeters
Brass Body; Three Ranges to 20 GPM Water
54°
45°
Ø4-13/16
[122.24]
HOLE IN
PANEL
INLET
21/64
55°
[8.33]
OUTLET
54°
WRENCH
GRIP
1-51/64
[45.64]
3-1/32
[78.58]
[4] Ø3/16 [4.76] HOLES IN
PANEL FOR SURFACE MOUNTING
ON A 4-5/16 [109.52] B.C.
Series RMV Rate-Master® Flowmeters measure higher water flow rates with ±2% of full
scale accuracy at affordable prices. Rugged forged brass housing is standard on all models for
great compatibility and the strength to withstand system pressures to 1000 psig (68.9 bar). Unlike
glass tube rotameters, these units won’t shatter and they work fine with even dark and/or opaque
liquids. Stocked models are fitted with 1˝ female NPT inlet and outlet; 3/4˝ and 1/2˝ sizes are also
available. Install in line, supported by piping or flush panel mount with complete hardware
package included.
FLOW
Range, GPM Water
0-5
0-10
0-20
0-5
0-10
0-20
0-5
0-10
0-20
Connection Size
1 female NPT
1 female NPT
1 female NPT
3/4 female NPT
3/4 female NPT
3/4 female NPT
1/2 female NPT
1/2 female NPT
1/2 female NPT
OPTION
For NISTtraceable calibration certificate, add suffix -NIST to model numbers.
Example: RMV-1-3-NIST.
®
Rate-Master Dial-Type Flowmeter
Flowmeters, Dial
Series
RMV II
1/2
[12.70]
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials: Brass, copper, 302 SS, sintered barium ferrite.
Temperature Limits: 20 to 200°F (-6.7 to 93°C).
Pressure Limit: 1000 psig (68.9 bar).
Pressure Drop: 0 to 5 GPM: 3.2 psid; 0 to 10 GPM: 5.3 psid; 0 to 20 GPM:
10.4 psid.
Accuracy: ±2% of full-scale.
Size: Diameter dial face 4 (101.6 mm).
Process Connections: See chart.
Maximum Flow: 1.5 x full-scale reading.
Weight: 9 Ib (4.08 kg).
APPLICATIONS
Monitor coolant flow through ingot heaters, high-amp switchgear, resistance welders,
heat exchangers, compressors, scrubbers; monitor water consumption to different
processes and operations for more efficient operation; calculate required fill or drain
times for tanks, water towers.
Model
RMV-1-3
RMV-2-3
RMV-3-3
RMV-1-2
RMV-2-2
RMV-3-2
RMV-1-1
RMV-2-1
RMV-3-1
Ø5
[127.00]
For Panel Mounting, Three Ranges to 10 GPM Water
[3] 7/32 DIA [5.6]
HOLES ON 5-3/8 DIA
[136.5] BOLT CIRCLE
120°
TYP.
1
[25.40]
11/32
[8.85]
2
[50.80]
4-5/8 DIA.
1-19/64 [117.98]
[33.02]
5-7/8 DIA.
[149.2]
1-1/4
[31.75]
3/4˝ NPT TYP.
BOTH ENDS
4-7/16
[112.78]
*FITS IN ANSI STANDARD 4.940 [125.5] PANEL CUTOUT
Series RMV II Rate-Master® Flowmeters employ a target-type design combined with a
damage resistant magnetic linkage to drive a pointer over an easy-to-read litho scale. This
unique construction fully isolates flowing media from gage front for leakproof operation at
pressures to 3000 psig (206.7 bar) with ±5% of full-scale accuracy. Solid machined brass meter
body is ideally suited for water flows. Body design fits standard 4 1/2 mounting hole layouts
per ANSI B40.1. Inlet and outlet threads are standard 3/4 female NPT.
Model
RMVII-1
RMVII-3
RMVII-6
RMVII-10
Range
GPMWater
0-3
0-5
0-10
…
Range
SCFM
…
…
…
0-10
Range
LPM Air
…
…
…
0-280
Model
RMVII-12
RMVII-14
RMVII-20
RMVII-21
RMVII-22
Range
GPMOil
…
…
0-2.2
0-4.0
0-8.5
Range Range
SCFM LPM Air
0-30 0-850
0-50 0-1400
…
…
…
…
…
…
Range
LPM Oil
…
…
0-8
0-15
0-32
SPECIFICATIONS
Service: Compatible gases & liquids & oils.
Wetted Materials: Brass, 302 SS, sintered barium ferrite, polyacetyl.
Temperature Limit: 200°F (93°C).
Pressure Limit: 3000 psig (206 bar).
Pressure Drop: 0 to 5 GPM: 3.2 psid; 0 to 10 GPM: 5.3 psid; 0 to 20 GPM:
10.4 psid.
Accuracy: ±5% of full-scale.
Size: Diameter dial face 4.5 (114.3 mm).
Process Connections: 3/4 female NPT.
Weight: 2 lb, 14 oz (1.3 kg).
OPTION
For NISTtraceable calibration certificate, add suffix -NIST to model numbers.
Example: RMVII-1-NIST.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
165
166_Layout 1 7/21/14 9:09 AM Page 166
Series
DTFW &
DTFO
Variable-Area Flowmeter for Liquids and Oil
In-Line Mounting, 2% FS Accuracy, Brass & 316 SS Body, 2% FS Accuracy
1
[25.40]
3-19/32
[91.44]
5-47/64
[145.54]
3/4
[19.05]
Ø2-59/64
[74.17]
1/2˝ NPT
INLET & OUTLET
Ø2-59/64
[74.17]
2
[50.80]
3
[76.20]
11/16
[17.53]
1/4˝ NPT
1/4 NPT Connection
INLET & OUTLET
DTFW
1-1/2
[38.10]
FLOW
7
[177.80]
The Series DTFW Variable-Area Flowmeter for Liquids measures water flow rates
with ± 2% of full-scale accuracy at a competitive price. Durable metal construction ensures
great compatibility and the strength to withstand system pressures of up to 3000 psig (200
bar). 1/4˝, 1/2˝ and 1˝ connections are available, with construction choices of a high
quality brass or stainless steel. Comes pre-calibrated for horizontal in-line mounting.
Flowmeters, Dial
The Series DTFO Variable-Area Flowmeter for Liquids measures oil rates with ±2%
of full-scale accuracy at an affordable price. Durable metal construction ensures great
reliability and the strength to withstand system pressures of up to 3000 psig (200 bar).
Available in 1/4˝, 1/2˝ and 1˝ connections for a wide variety of applications. Comes
calibrated for horizontal in line mounting.
Model
DTFW-1B-1W
DTFW-1B-2W
DTFW-1B-3W
DTFW-1B-4W
DTFW-1B-5W
DTFW-1S-1W
DTFW-1S-2W
DTFW-1S-3W
DTFW-1S-4W
DTFW-1S-5W
DTFW-2B-1W
DTFW-2B-2W
DTFW-2B-3W
DTFW-2B-4W
DTFW-2B-5W
Range,
GPM Water
0 to 1
0 to 2
0 to 3
0 to 4
0 to 5
0 to 1
0 to 2
0 to 3
0 to 4
0 to 5
0 to 1
0 to 2
0 to 3
0 to 4
0 to 5
Connection Body
1/4 NPT
Brass
1/4 NPT
Brass
1/4 NPT
Brass
1/4 NPT
Brass
1/4 NPT
Brass
1/4 NPT
SS
1/4 NPT
SS
1/4 NPT
SS
1/4 NPT
SS
1/4 NPT
SS
1/2 NPT
Brass
1/2 NPT
Brass
1/2 NPT
Brass
1/2 NPT
Brass
1/2 NPT
Brass
Metering Cone
Acetal
Acetal
Acetal
Acetal
Acetal
Acetal
Acetal
Acetal
Acetal
Acetal
Acetal
Acetal
Acetal
Acetal
Acetal
Model
DTFW-2B-8W
DTFW-2B-10W
DTFW-2S-1W
DTFW-2S-2W
DTFW-2S-3W
DTFW-2S-4W
DTFW-2S-5W
DTFW-2S-8W
DTFW-2S-10W
DTFW-3S-10W
DTFW-3S-15W
DTFW-3S-20W
DTFW-3S-25W
DTFW-3S-30W
*For oil compatible models, substitute all W•s for O•s in model number.
Example: DTFW-1B-1W (0 to 1 GPM water). DTFO-1B-1O (0 to 1 GPM oil).
Not available in 1/4 or 1/2 SS.
166
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
11/16
[17.53]
1-1/2 1˝ NPT
[38.10] INLET & OUTLET
1-9/64
[28.96]
R1
[25.40] Ø2
[50.80] Ø2-59/64
[74.17]
3-5/32
[80.26]
DTFO
1/2 NPT Connection
1 NPT Connection
SPECIFICATIONS
Service:
DTFW: Compatible liquids;
DTFO:Compatible oils.
Wetted Materials:
Body: 316 SS or brass;
Spring: 302 SS;
Range spring: 302 SS;
Magnet: PTFE-coated;
Metering cone: Acetal or PTFE;
Seals: Buna.
Temperature Limits: -40 to 200°F (-40
to 93°C).
Pressure Limit: DTFW-3S: 1500 psig
(100 bar); All other DTFW models:
3000 psig (200 bar); DTFO-1B and
DTFO-2B: 3000 psig (200 bar); DTFO3S:1500 psig (100 bar).
Range,
GPM Water
0 to 8
0 to 10
0 to 1
0 to 2
0 to 3
0 to 4
0 to 5
0 to 8
0 to 10
0 to 10
0 to 15
0 to 20
0 to 25
0 to 30
Connection
1/2 NPT
1/2 NPT
1/2 NPT
1/2 NPT
1/2 NPT
1/2 NPT
1/2 NPT
1/2 NPT
1/2 NPT
1 NPT
1 NPT
1 NPT
1 NPT
1 NPT
Body
Brass
Brass
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
3
[76.20]
3
[76.20]
Accuracy: ±2% FS.
Repeatability: ±1% FS.
Size: Diameter dial face 2.5 (63.5
mm).
Process Connection: See model
chart.
Weight: DTFW-1B and 1S: 3 lb (1.36
kg); DTFW-2B and 2S: 5 lb (2.27 kg);
DTFW-3S: 10 lb (4.54 kg); DTFO-1B:3
lb (1.36 kg); DTFO-2B: 5 lb (2.27 kg);
DTFO-3S:10 lb (4.54 kg).
Metering Cone
Acetal
Acetal
Acetal
Acetal
Acetal
Acetal
Acetal
Acetal
Acetal
PTFE
PTFE
PTFE
PTFE
PTFE
167_Layout 1 7/8/14 11:07 AM Page 167
Series
DTFA
Variable-Area Flowmeter for Gases
Economical, Aluminum Body, 5% FS Accuracy
5-47/64
[145.54]
1
[25.40]
3-19/32
[91.44]
1/2˝ NPT
INLET & OUTLET
3/4
[19.05]
Ø2-59/64
[74.17]
Ø2-59/64
[74.17]
2
[50.80]
11/16 1/4˝ NPT
[17.53] INLET & OUTLET
3
[76.20]
1/2 NPT Process Connection
The Series DTFA Variable-Area Flowmeter for Gases measures gas flow rates with
±5% of full-scale accuracy at an affordable price. Rugged aluminum construction ensures
great compatibility and the strength to withstand system pressures of up to 3000 psig (200
bar). Available in either 1/4˝ or 1/2˝ NPT connections. Comes pre-calibrated for horizontal
in-line mounting.
Range, SCFM
1.5 to 10
2.0 to 15
3.0 to 20
3.0 to 25
3.0 to 30
4.0 to 40
4.0 to 50
5.0 to 75
10.0 to 100
Connection
1/4 NPT
1/4 NPT
1/4 NPT
1/4 NPT
1/2 NPT
1/2 NPT
1/2 NPT
1/2 NPT
1/2 NPT
Series
DTFF
SPECIFICATIONS
Service: Compatible gases.
Wetted Materials:
Body: Aluminum;
Spring: PTFE-coated;
Range spring: 302 SS;
Magnet: PTFE-coated;
Metering cone: Acetal;
Seals: Buna.
Temperature Limits: -40 to 200°F (-40 to 93°C).
Pressure Limit: 3000 psig (200 bar).
Accuracy: ±5% FS.
Repeatability: ±1% FS.
Size: Diameter dial face 2.5 (63.5 mm).
Process Connections: See model chart.
Weight: DTFA-1A: 3 lb (1.36 kg); DTFA-2A: 5 lb (2.27 kg).
FLOW
Model
DTFA-1A-10A
DTFA-1A-15A
DTFA-1A-20A
DTFA-1A-25A
DTFA-2A-30A
DTFA-2A-40A
DTFA-2A-50A
DTFA-2A-75A
DTFA-2A-100A
1/4 NPT Connection
Fixed-Orifice Flowmeter for Low Flow Rates
316 SS Body, Oil/Gas/Water Calibration
1-7/8
[47.75]
1-31/64
[37.59]
Model
DTFF-1S-4W
DTFF-1S-5W
DTFF-1S-8W
DTFF-1S-10W
DTFF-1S-15W
DTFF-1S-20W
DTFF-1S-25W
DTFF-1S-40W
Range
0 to 4 GPH
0 to 5 GPH
0 to 8 GPH
0 to 10 GPH
0 to 15 GPH
0 to 20 GPH
0 to 25 GPH
0 to 40 GPH
Calibration
Water
Water
Water
Water
Water
Water
Water
Water
Model
DTFF-1S-4O
DTFF-1S-5O
DTFF-1S-8O
DTFF-1S-10O
DTFF-1S-15O
DTFF-1S-20O
DTFF-1S-25O
DTFF-1S-40O
DTFF-1S-5A
Range
0 to 4 GPH
0 to 5 GPH
0 to 8 GPH
0 to 10 GPH
0 to 15 GPH
0 to 20 GPH
0 to 25 GPH
0 to 40 GPH
1.5 to 5 SCFM
3/4
[19.05]
Ø2-59/64
[74.17]
1-1/2
[38.10]
The Series DTFF Fixed-Orifice Flowmeter for Low Flow Rates measures water,
oil, or air flow rates with great accuracy at a competitive price. Rugged stainless steel
construction ensures great compatibility and is an excellent choice for high line pressure
applications, with a maximum pressure of 3000 psig (200 bar). This is all without
sacrificing the sensitivity required for low flow measurements. Available in a wide range
of flow rates for each calibration, with stainless steel construction as standard. Comes pre
calibrated for horizontal in-line mounting.
1-1/2
[38.10]
2-11/32
[59.44]
2
[50.80]
11/16
[17.53]
1/4 NPT ProcessConnection
SPECIFICATIONS
Service: Compatible gases & liquids &
oils.
Wetted Materials:
Body: 316 SS;
Spring: 302 SS;
Range spring: 302 SS;
Magnet: PTFE-coated;
Orifice piston: Acetal;
Diaphragm: Fluoroelastomer.
Calibration
Oil
Oil
Oil
Oil
Oil
Oil
Oil
Oil
Air
1
[25.40]
Temperature Limit: -22 to 200°F (30
to 93°C).
Pressure Limit: 3000 psig (200 bar).
Accuracy: Liquid/oil calibration: ±2%
FS; Air calibration: ±5% FS.
Repeatability: ±1% FS.
Size: Diameter dial face 2.5 (63.5
mm).
Process Connections: 1/4 female
NPT.
Weight: 4 lb (1.81 kg).
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
167
Flowmeters, Dial
1/4˝ NPT
INLET & OUTLET
168_Layout 1 7/8/14 11:07 AM Page 168
Series
DS
In-Line Flow Sensors
®
Use with the Dwyer Differential Pressure Gages or Transmitters
Valves „ Standard, brass with TFE
seat and Buna-N O-ring
1-15/16 [49.21]
Nameplate „
Stainless steel
permanently attached
with split ring. Includes
complete size and
model information.
1-5/8 [41.28]
1-3/4 [44.45]
1-11/16 [42.86] APPROX
Head „ Machined stainless steel.
1/4 NPT
1-7/16 [36.53]
Packing gland „ Parker CPI brass
compression fitting.
5/16 [7.94]
Sensor tube „ 304 SS.
FLOW
1/16 [1.59] CLEARANCE
Flow Sensors, In-Line
Series DS-300
Sensing ports „ Multiple upstream and
downstream ports sized and positioned
to provide effective accurate pressure
averaging, even at lower velocities.
In-Line Flow Sensors are averaging Pitot tubes that provide accurate and convenient
flow rate sensing for schedule 40 pipe. When purchased with a Dwyer® Capsuhelic®
differential pressure gage of appropriate range, the result is a flow indicating system
delivered off the shelf at an economical price.
Pitot tubes have been used in flow measurement for years. Conventional pitot tubes sense
velocity pressure at only one point in the flowing stream. Therefore, a series of
measurements must be taken across the stream to obtain a meaningful average flow rate.
The Dwyer® flow sensor eliminates the need for “traversing” the flowing stream because
of its multiple sensing points and built-in averaging capability.
The Series DS-300 flow sensors are designed to be inserted in the pipeline through a
compression fitting. They are furnished with instrument shut-off valves on both pressure
connections. Valves are fitted with 1/8˝ female NPT connections. Accessories include
adapters with 1/4˝ SAE 45° flared ends compatible with hoses supplied with the Model A471 Portable Capsuhelic® gage kit. Standard valves are rated at 200 psig (13.7 bar) and
200°F (93.3°C). Where valves are not required, they can be omitted at reduced cost. Series
DS-300 flow sensors are available for pipe sizes from 1˝ to 10˝.
DS-400 Averaging Flow Sensors are quality constructed from extra strong 3/4˝ dia.
stainless steel to resist increased forces encountered at higher flow rates with both air and
water. This extra strength also allows them to be made in longer insertion lengths up to
24 inches (61 cm). All models include convenient and quick-acting quarter-turn ball valves
to isolate the sensor for zeroing. Process connections to the valve assembly are 1/8˝ female
NPT. A pair of 1/8˝ NPT X 1/4˝ SAE 45° flared adapters are included, compatible with
hoses used in the Model A-471 Portable Capsuhelic® Gage Kit. Supplied solid brass
mounting adapter has a 3/4˝ dia. compression fitting to lock in required insertion length
and a 3/4˝ male NPT thread for mounting in a Threaded Branch Connection.
Series DS-300
Model
DS-300-1
DS-300-1-1/4
DS-300-1-1/2
DS-300-2
DS-300-2-1/2
DS-300-3
DS-300-4
DS-300-6
DS-300-8
DS-300-10
Description
1 pipe size
1-1/4 pipe size
1-1/2 pipe size
2 pipe size
2-1/2 pipe size
3 pipe size
4 pipe size
6 pipe size
8 pipe size
10 pipe size
Series DS-400
Model
DS-400-6
DS-400-8
DS-400-10
DS-400-12
DS-400-14
DS-400-16
DS-400-18
DS-400-20
DS-400-24
Description
6 pipe size
8 pipe size
10 pipe size
12 pipe size
14 pipe size
16 pipe size
18 pipe size
20 pipe size
24 pipe size
OPTIONS &ACCESSORIES
DS-300 or DS-400 Less Valves. To order, add suffix -LV
A-160, ThreadedBranch Connection, 3/8 NPT, forged steel, 3000 psi
A-161, Brass Bushing, 1/4 x 3/8
168
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
169_Layout 1 7/8/14 11:08 AM Page 169
How To Order
Merely determine the pipe size into which the flow sensor will be mounted and
designate the size as a suffix to Model DS-300. For example, a flow sensor to be
mounted in a 2 pipe would be a Model No. DS-300-2.
For non-critical water and air flow monitoring applications, the chart below can be
utilized for ordering a stock Capsuhelic® differential pressure gage for use with the
DS-300 flow sensor. Simply locate the maximum flow rate for the media being
measured under the appropriate pipe size and read the Capsuhelic® gage range in
inches of water column to the left. The DS-300 sensor is supplied with installation
and operating instructions, Bulletin F-50. It also includes complete flow conversion
information for the three media conditions shown in the chart below. This information
enables the user to create a complete differential pressure to flow rate conversion
table for the sensor and differential pressure gage employed. Both the Dwyer®
Capsuhelic® gage and flow sensor feature excellent repeatability so, once the
desired flow rate is determined, deviation from that flow in quantitative measure can
be easily determined. You may wish to order the adjustable signal flag option for the
Capsuhelic® gage to provide an easily identified reference point for the proper flow.
Capsuhelic® gages with special ranges and/or direct reading scales in appropriate
flow units are available on special order for more critical applications. Customer
supplied data for the full scale flow (quantity and units) is required along with the
differential pressure reading at that full flow figure. Prior to ordering a special
Capsuhelic® differential pressure gage for flow read-out, we recommend you request
Bulletin F-50 to obtain complete data on converting flow rates of various media to
the sensor differential pressure output. With this bulletin and after making a few
simple calculations, the exact range gage required can easily be determined.
Large 3/4 Inch Diameter for Extra Strength in Lengths to 24 Inches
2-1/16
[52.40]
1-5/8 [41.28] TYP.
LP
2-1/8 [53.98]
HP
3-5/8 [92.08] APPROX.
3/4 [19.05]
DIA.
1/16 [1.60]
GAP UP TO 12˝ PIPE
1/8 [3.175]
GAP 14˝ PIPE AND UP
72-700416-00
Series DS-400
8
350
1340
3600
560
2150
5700
800
3040
8100
1250
4860
13000
1800
6400
18500
10
560
2130
6000
890
3400
10000
1260
4860
15000
2000
7700
22000
Flow Sensors, In-Line
Full Range Flows by Pipe Size (Approximate)
1
1-1/4 1-1/2 2
2-1/2 3
4
6
4.8
8.3
11.5 20.5 30
49
86
205
19.0 33.0 42.0 65.0 113
183 330 760
50.0 90.5 120.0 210.0 325 510 920 2050
7.7
14.0 18.0 34.0 47
78
138 320
30.0 51.0 66.0 118.0 178 289 510 1200
83.0 142.0 190.0 340.0 610 820 1600 3300
11.0 19.0 25.5 45.5 67
110 195 450
41.0 72.0 93.0 163.0 250 410 725 1690
120.0 205.0 275.0 470.0 740 1100 2000 4600
18.0 32.0 40.5 72.0 108 173 310 720
63.0 112.0 155.0 255.0 390 640 1130 2630
185.0 325.0 430.0 760.0 1200 1800 3300 7200
25.0 44.0 57.5 100.0 152 247 435 1000
90.0 161.0 205.0 360.0 560 900 1600 3700
260.0 460.0 620.0 1050.0 1700 2600 4600 10000
36.5 62.0 82.0 142.0 220 350 620 1500
135.0 230.0 300.0 505.0 800 1290 2290 5000
370.0 660.0 870.0 1500.0 2300 3600 6500 15000
FLOW
Gage Range Media
(in w.c.)
@ 70°F
2
Water (GPM)
Air @ 14.7 PSIA (SCFM)
Air @ 100 PSIG (SCFM)
5
Water (GPM)
Air @ 14.7 PSIA (SCFM)
Air @ 100 PSIG (SCFM)
10
Water (GPM)
Air @ 14.7 PSIA (SCFM)
Air @ 100 PSIG (SCFM)
25
Water (GPM)
Air @ 14.7 PSIA (SCFM)
Air @ 100 PSIG (SCFM)
50
Water (GPM)
Air @ 14.7 PSIA (SCFM)
Air @ 100 PSIG (SCFM)
100
Water (GPM)
Air @ 14.7 PSIA (SCFM)
Air @ 100 PSIG (SCFM)
Capsuhelic® Gage Shown Installed In A-471 Portable Kit
Model A-471, Portable Kit
For portable operation, the A-471 Capsuhelic® Portable Gage Kit is available
complete with tough polypropylene carrying case, mounting bracket, 3-way manifold
valve, two 10' high pressure hoses, and all necessary fittings.
Series 631B, Capsuhelic® Wet/Wet Differential Pressure Transmitter
Low pressure transmitter for use with DS-300/400 flow sensors. Use Series 631B
Capsuhelic® Wet/Wet Differential Pressure Transmitter.
See page 15 (Series 4000)
See page 65 (Series 631B)
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
169
170_Layout 1 7/8/14 11:08 AM Page 170
Series
OP
Orifice Plate Flowmeter
SS for Use with Liquids and Gases
1/4˝ NPT PRESSURE FITTING
A
CL
HI
PRESSURE
ORIFICE PLATE
1/8 [3.18]
THICK TYPICAL
OD
4-1/2
[114.3]
ID
FLOW
Flowmeters, Orifice Plate
FLOW
BODY
[CARRIER RING]
A
CL
LOW
PRESSURE
INCLUDES RING GASKET
ADHERED TO FACES
1-1/4
[31.75]
Scan here to watch product video
The Series OP Orifice Plate Flow Meter is a complete orifice plate flow metering
package. It incorporates a SS orifice plate with a unique holder or carrier ring containing
metering taps and integral gaskets. It was designed for use wherever there is an application
for a conventional flow orifice plate. It can also be used in place of other primary differential
producers for efficiency and cost effectiveness. Installation is accomplished simply by slipping
the unit between standard flanges (orifice flanges are not required). The Series OP is
available in line sizes from 1/2˝ to 24˝ and can be used with compatible liquids and gases.
FEATURES
€ Mounted with standard flanges
€ Corner type metering taps
€ Corrosion free material
€ Simplified installation
€ Stainless steel wetted parts
€ Proven through a wide range of applications for energy efficiency
€ Assures long term reliability and accuracy
APPLICATION
Fluid flow rates in building water lines.
170
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
SPECIFICATIONS
Service: For metering compatible liquids and gases.
Wetted Material: 304 SS, Buna-N gaskets.
Accuracy: 0.6% of full scale flow. (Beta = .2-.6) ±0.7% for Beta greater than .6.
Temperature Limits: -50 to 200°F (-45 to 93°C).
Pressure Limits: Limited only by pipe and flange rating restrictions.
Head Loss: 1-Beta ratio2 eg: 1-0.72 = 1-0.49 = 51% of the d.p.
Line Sizes: 1/2 to 24.
Process Connection: 1/4 female NPT.
Installation: Standard flange, any rating (orifice flanges not required).
Pipe Requirements: General requirements 10 diameter upstream and 5 diameter
downstream of orifice plate.
Weight: Varies with line size. See chart.
171_Layout 1 7/8/14 11:09 AM Page 171
Series OP Orifice Plate Flowmeter
€ Material 304/304 L- dual certified- Gaskets Buna-N
€ Based on 70°F, 14.7 psia (Base Conditions)
€ Beta Value Based on Std Sch pipe I.D.
€ 1.25 overall thickness
€ Orifice plate thickness is 0.125
Line
Size
1/2
1/2
1/2
Bore
0.200
0.310
0.430
Water Capacity
in d.p. Flow in
GPM
Beta w.c.
0.62
0.32 20
3.44
0.50 100
13.00
0.69 320
OP-B-1 1.00
OP-B-2 1.00
OP-B-3 1.00
3/4
3/4
3/4
0.250
0.400
0.580
0.30
0.49
0.70
20
100
320
OP-C-1 2.00
OP-C-2 2.00
OP-C-3 2.00
1
1
1
0.300
0.520
0.720
0.29
0.49
0.69
OP-D-1 2.00
OP-D-2 2.00
OP-D-3 2.00
1.25 0.400
1.25 0.700
1.25 1.00
OP-E-1 2.00
OP-E-2 2.00
OP-E-3 2.00
1.5
1.5
1.5
OP-F-1 3.00
OP-F-2 3.00
OP-F-3 3.00
at 100 psig
6.61
36.37
107.47
0.97
5.69
23.82
20
100
200
3.65
20.21
59.92
5.66
32.44
102.91
10.3
60.26
197.2
20
100
320
1.38
9.63
36.15
20
100
200
5.24
34.2
91.28
8.11
54.92
156.51
14.8
102.09
300
0.29
0.51
0.72
20
100
320
2.46
17.48
71.77
20
100
200
9.31
62.09
180
14.41
99.75
309.97
26.3
185.5
595.2
0.500
0.800
1.100
0.31
0.50
0.68
20
100
320
3.85
22.73
83.95
20
100
200
14.57
80.82
212.18
22.55
129.68
363.93
41.16
241.5
697.39
2
2
2
0.600
1.000
1.450
0.29
0.48
0.70
20
100
320
5.52
35.34
147.74
20
100
200
20.92
125.74
372.09
32.38
202.03
639.87
59.13
375.8
1227.63
OP-G-1 4.00
OP-G-2 4.00
OP-G-3 4.00
2.5
2.5
2.5
0.750
1.250
1.750
0.30
0.50
0.70
20
100
320
8.63
55.54
216.30
20
100
200
32.71
197.54
543.99
50.64
317.58
936.56
92.48
590.91
1798.86
OP-H-1 5.00
OP-H-2 5.00
OP-H-3 5.00
3
3
3
0.920
1.500
2.150
0.30
0.49
0.70
20
100
320
12.97
79.94
324.16
20
100
200
49.17
282.9
816.7
76.13
454.77
1404.95
139.06
846.21
2696.28
OP-J-1
OP-J-2
OP-J-3
7.00
7.00
7.00
4
4
4
1.200
2.000
2.800
0.30
0.50
0.70
20
100
320
22.03
141.51
547.11
20
100
200
83.58
503.76
1380.03
129.44
810.06
2373.02
236.48
1507.64
4553.68
OP-K-1 8.00
OP-K-2 8.00
OP-K-3 8.00
5
5
5
1.500
2.500
3.500
0.30
0.50
0.69
20
100
320
34.39
220.80
853.09
20
100
200
130.48
786.23
2152.83
202.11
1264.42
3701.57
369.29
2353.51
7103.22
OP-L-1 10.00
OP-L-2 10.00
OP-L-3 10.00
6
6
6
1.800
3.000
4.200
0.30
0.49
0.69
20
100
320
20
49.46
317.74 100
1226.98 200
187.86
1331.63
3097.20
291
1820.05
5325.20
531.75
3387.93
10219.28
OP-M-1 14.00
OP-M-2 14.00
OP-M-3 14.00
8
8
8
2.400
4.000
5.600
0.30
0.50
0.70
20
100
320
20
87.95
565.77 100
2195.86 200
333.87
2014.95
5532.00
517.25
3241.45
9525.43
945.28
6034.85
18290.00
OP-N-1 20.00
OP-N-2 20.00
OP-N-3 20.00
10
10
10
3.000
5.000
7.000
0.30
0.50
0.70
20
100
320
137.35 20
883.04 100
3421.26 200
521.58
3145.50
8626.42
808
5060.38
14846.80
1476.77
9421.74
28506.17
OP-O-1 30.00
OP-O-2 30.00
OP-O-3 30.00
12
12
12
3.600
6.000
8.400
0.30
0.50
0.70
20
100
320
197.73 20
1271.62 100
4930.86 200
750.9
4530
12430.00
1163.44
7288.16
21397.00
2126.47
13570.33
41089.02
OP-P-1 40.00
OP-P-2 40.00
OP-P-3 40.00
14
14
14
4.000
6.600
9.300
0.30
0.50
0.70
20
100
320
244.14 20
1537.49 100
6052.57 200
927.14
6477.67
15251.50
1436.59
8812.87
28262.66
2625.81
16409.42
50427.78
OP-Q-1 48.00
OP-Q-2 48.00
OP-Q-3 48.00
16
16
16
4.500
7.600
10.700
0.30
0.50
0.70
20
100
320
308.76 20
2038.95 100
8007.74 200
1172.63
7264.58
20179.85
1817.05
11688.26
34749.32
3321.32
21764.08
66737.64
Flowmeters, Orifice Plate
Air Capacity - Flow in SCFM
in d.p. at 14.7 psia
w.c.
(0 psig)
at 20 psig
20
2.35
3.63
100
12.21
19.58
200
32.77
56.15
FLOW
Weight
Model (lb)
OP-A-1 1.00
OP-A-2 1.00
OP-A-3 1.00
Note: Differential pressure values should be less than 50% of the inlet absolute pressure.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
171
172_Layout 1 7/8/14 11:09 AM Page 172
Series
PE & TE
Orifice Plate Flowmeters
PVC or PTFE Orifice Plates
1/4˝ NPT PRESSURE FITTING
A
CL
HI
PRESSURE
ORIFICE PLATE
1/8 [3.18]
THICK TYPICAL
4-1/2 OD
ID
[114.3]
FLOW
PE
TE
Flowmeters, Orifice Plate
FLOW
BODY
[CARRIER RING]
A
CL
LOW
PRESSURE
INCLUDES RING GASKET
ADHERED TO FACES
1-1/4
[31.75]
Scan here to watch product video
The Series PE Orifice Plate Flow Meter offers one-piece PVC construction incorporating
a unique holder or carrier ring containing metering taps and integral gaskets. Unlike a
standard orifice plate, the Series PE is a true primary element including the various
components for differential pressure measurement. It was designed for use wherever there
is an application for a conventional flow orifice plate. It can also be used in place of other
primary differential producers for efficiency and cost effectiveness. The Series PE is available
in line sizes from 1/2˝ to 24˝ and used for air and most gases. It meets or exceeds ASME,
AGA & ISO standards.
SERIESPE FEATURES
€ Mounted with standard flanges
€ Standard •corner tapŽ configuration
€ Corrosion free material
€ Simplified installation
€ Built in metering taps (1/4 female NPT STD)
€ Proven through a wide range of applications for accuracy and energy efficiency
€ Assures long term reliability and accuracy
The Series TE Orifice Plate Flowmeter offers one-piece PTFE construction similar
to the OP and PE Series orifice plates, which incorporate a unique holder or carrier ring
containing metering taps and integral gaskets. Available for line sizes from 1/2˝ to 24˝,
the Series TE orifice plate can be used with gases, liquids, corrosive, and high temperature
fluids. The Series TE can be easily installed by slipping the unit between standard flanges
(orifice flanges are not required). The Series TE was designed for use anywhere there is
an application for a conventional flow orifice plate. It can also be used in place of other
primary differential producers for efficiency and cost effectiveness.
SERIESTEFEATURES
€ Excellent chemical resistance
€ Weather resistant
€ Flame retardant (without factory gaskets)
€ Low friction (minimum wear)
€ Orifice plate thickness 1/4 offering greater stability
172
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
SPECIFICATIONS
Service: PE: Clean air and compatible gases; TE: Compatible gases and liquids.
Wetted Material: Monolithic (single piece) constructed entirely of gray PVC for PE
or white PTPE for TE, Buna-N gaskets.
Accuracy: ±0.6% full scale flow. (Beta = .2-.6) ±0.7% for Beta greater than .6.
Temperature Limits: PE: 140°F max (60°C max); TE: -40 to 200°F (-40 to 93.3°C).
Pressure Limits: 150 psi (10 bar) max.
Head Loss: 1-Beta ratio2 eg: 1 - 0.72 = 1 - 0.49 = 51% of the d.p.
Line Sizes: 1/2 to 24.
Process Connections: 1/4 female NPT.
Installation: Standard flange 125#/150# rating.
Pipe Requirements: General requirements 10 diameter upstream and 5 diameter
downstream.
Weight: Varies with line size. See chart.
173_Layout 1 7/8/14 11:10 AM Page 173
Series PE Orifice Plate Flowmeter … Air Capacity Structure
€ Material PVC- Gaskets Buna-N
€ Based on 70°F, 14.7 psia (Base Conditions)
€ Beta Value Based on Std Sch pipe I.D.
€ 1.25 overall thickness
€Orifice plate thickness is 0.125
PE
Model
PE-A-1
PE-A-2
PE-A-3
PE
Weight
(lb)
1.00
1.00
1.00
TE
Model
TE-A-1
TE-A-2
TE-A-3
TE
Weight
(lb)
1.00
1.00
1.00
Series TE Orifice Plate Flowmeter … Capacity Structure
€ Material PTFE - Gaskets Buna-N
€ Based on 70°F, 14.7 psia (base conditions)
€ Beta value based on Std Sch pipe I.D.
€ 1.25 overall thickness
€Orifice plate thickness is 0.250
Line
Size
1/2
1/2
1/2
Bore
0.200
0.310
0.430
WaterCapacity (TE) Air Capacity - Flow in SCFM
Flow in
in d/p
at 14.7 psia
in d.p.
GPM
w.c.
Beta w.c.
(0 psig)
0.62
20
0.3
2.35
20
3.44
100
0.5
12.21
100
13.00
200
0.69 320
32.77
at 20 psig
3.63
19.58
56.15
at 100 psig
6.61
36.37
107.47
3/4
3/4
3/4
0.250
0.400
0.580
0.3
0.49
0.7
20
100
320
0.97
5.69
23.82
20
100
200
3.65
20.21
59.92
5.66
32.44
102.91
10.3
60.26
197.2
PE-C-1 1.00
PE-C-2 1.00
PE-C-3 1.00
TE-C-1 1.00
TE-C-2 1.00
TE-C-3 1.00
1
1
1
0.300
0.520
0.720
0.29
0.49
0.69
20
100
320
1.38
9.63
36.15
20
100
200
5.24
34.2
91.28
8.11
54.92
156.51
14.8
102.09
300
PE-D-1 1.00
PE-D-2 1.00
PE-D-3 1.00
TE-D-1 1.00
TE-D-2 1.00
TE-D-3 1.00
1.25 0.400
1.25 0.700
1.25 1.00
0.29
0.51
0.72
20
100
320
2.46
17.48
71.77
20
100
200
9.31
62.09
180
14.41
99.75
309.97
26.3
185.5
595.2
PE-E-1 2.00
PE-E-2 2.00
PE-E-3 2.00
TE-E-1 2.00
TE-E-2 2.00
TE-E-3 2.00
1.5
1.5
1.5
0.500
0.800
1.100
0.31
0.5
0.68
20
100
320
3.85
22.73
83.95
20
100
200
14.57
80.82
212.18
22.55
129.68
363.93
41.16
241.5
697.39
PE-F-1 2.00
PE-F-2 2.00
PE-F-3 2.00
TE-F-1 2.00
TE-F-2 2.00
TE-F-3 2.00
2
2
2
0.600
1.000
1.450
0.29
0.48
0.7
20
100
320
5.52
35.34
147.74
20
100
200
20.92
125.74
372.09
32.38
202.03
639.87
59.13
375.8
1227.63
PE-G-1 2.00
PE-G-2 2.00
PE-G-3 2.00
TE-G-1 2.00
TE-G-2 2.00
TE-G-3 2.00
2.5
2.5
2.5
0.750
1.250
1.750
0.3
0.5
0.7
20
100
320
8.63
55.54
216.30
20
100
200
32.71
197.54
543.99
50.64
317.58
936.56
92.48
590.91
1798.86
PE-H-1 2.00
PE-H-2 2.00
PE-H-3 2.00
TE-H-1 2.00
TE-H-2 2.00
TE-H-3 2.00
3
3
3
0.920
1.500
2.150
0.3
0.49
0.7
20
100
320
12.97
79.94
324.16
20
100
200
49.17
282.9
816.7
78.13
454.77
1404.95
139.06
846.21
2696.28
PE-J-1 3.00
PE-J-2 3.00
PE-J-3 3.00
TE-J-1 3.00
TE-J-2 3.00
TE-J-3 3.00
4
4
4
1.200
2.000
2.800
0.3
0.5
0.7
20
100
320
22.03
141.51
547.11
20
100
200
83.58
503.76
1380.03
129.44
810.06
2373.02
236.48
1507.64
4553.68
PE-K-1 3.00
PE-K-2 3.00
PE-K-3 3.00
TE-K-1 4.00
TE-K-2 4.00
TE-K-3 4.00
5
5
5
1.500
2.500
3.500
0.3
0.5
0.69
20
100
320
34.39
220.80
853.09
20
100
200
130.48
786.23
2152.83
202.11
1264.42
3701.57
369.29
2353.51
7103.22
PE-L-1 4.00
PE-L-2 4.00
PE-L-3 4.00
TE-L-1 4.00
TE-L-2 4.00
TE-L-3 4.00
6
6
6
1.800
3.000
4.200
0.3
0.49
0.69
20
100
320
49.46
317.74
1226.98
20
100
200
187.86
1331.63
3097.20
291
1820.05
5325.20
531.75
3387.93
10219.28
PE-M-1 5.00
PE-M-2 5.00
PE-M-3 5.00
TE-M-1 6.00
TE-M-2 6.00
TE-M-3 6.00
8
8
8
2.400
4.000
5.600
0.3
0.5
0.7
20
100
320
87.95
565.77
2195.86
20
100
200
333.87
2014.95
5532.00
517.25
3241.45
9525.43
945.28
6034.85
18290.00
PE-N-1 6.00
PE-N-2 6.00
PE-N-3 6.00
TE-N-1 8.00
TE-N-2 8.00
TE-N-3 8.00
10
10
10
3.000
5.000
7.000
0.3
0.5
0.7
20
100
320
137.35
883.04
3421.26
20
100
200
521.58
3145.50
8626.42
808
5060.38
14846.80
1476.77
9421.74
28506.17
PE-O-1 7.00
PE-O-2 7.00
PE-O-3 7.00
TE-O-1 10.00
TE-O-2 10.00
TE-O-3 10.00
12
12
12
3.600
6.000
8.400
0.3
0.5
0.7
20
100
320
197.73
1271.62
4930.86
20
100
200
750.9
4530
12430.00
1163.44
7288.16
21397.00
2126.47
13570.33
41089.02
PE-P-1 9.00
PE-P-2 9.00
PE-P-3 9.00
TE-P-1 15.00
TE-P-2 15.00
TE-P-3 15.00
14
14
14
4.000
6.600
9.300
0.3
0.5
0.7
20
100
320
244.14
1537.49
6052.57
20
100
200
927.14
5477.67
15251.50
1436.59
8812.87
28262.66
2625.81
16409.42
50437.78
PE-Q-1 10.00
PE-Q-2 10.00
PE-Q-3 10.00
TE-Q-1 18.00
TE-Q-2 18.00
TE-Q-3 18.00
16
16
16
4.500 0.3
7.600 0.5
10.700 0.7
20
100
320
308.76
2038.95
8007.74
20
100
200
1172.63
7264.58
20179.85
1817.05
11688.26
34749.32
3321.32
21764.08
66737.64
Flowmeters, Orifice Plate
TE-B-1 1.00
TE-B-2 1.00
TE-B-3 1.00
FLOW
PE-B-1 1.00
PE-B-2 1.00
PE-B-3 1.00
Note: Differential pressure values should be less than 50% of the inlet absolute pressure.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
173
174_Layout 1 7/8/14 11:11 AM Page 174
®
Venturi Flowmeter with Magnehelic Gage
±2.5% Accuracy, Dual Scale in SCFM & in w.c.
GAGE ASSEMBLY IS SHOWN
TO ILLUSTRATE MOUNTING
ORIENTATION WITH THE
VF KIT.
[ø4.750]
[.687]
SIDE PORTS
PLUGGED
[.500]
[1.250]
[B]
FLOW
[øC]
[D]
90° APPROX.
[G]
[H]
H
1.125
1.375
1.750
2.375
3.000
J
4.625
5.250
5.750
7
9.250
[E]
[F]
Flowmeters, Venturi
FLOW
[A]
VFLO Kit
VF1
VF2
VF3
VF4
VF5
The Venturi Flow Meter with Magnehelic® Gage is fabricated from aluminum and
has a gradual Venturi profile to reduce pressure losses through the meter. Flexible
connections enable the meter to be used in vertical or horizontal applications. The
Magnehelic® gage provides a large, clear and accurate display of your differential pressure
reading. Each meter is calibrated at standard atmospheric conditions. The dual scale reads
in SCFM and in w.c. The meter is supplied with easy to read reference charts for various
flow conditions. It is available in line sizes from 1˝ to 4˝ and can handle vacuum and
pressure applications.
Series 2000, Magnehelic® Differential Pressure Gage
To Create Venturi Model, add option from chart to end of 2000.
Ex: 2000-10VF1 for 10 in w.c. & 20 SCFM of Air Scale with 1 Venturi Flow Tube
ACCESSORIES
MVB-LM1, Mini brass ball valve with lever handle. 1/8 F X 1/8 MNPT
MVB-TM1, Mini brass valve with tee handle. 1/8 M X 1/8 FNPT
MVB-WM1, Mini brass ball valve with wedge handle. 1/8 M X 1/8 FNPT
Option
Number
2000-10VF1
2000-20VF1
2000-40VF1
2000-10VF2
2000-20VF2
2000-40VF2
2000-10VF3
2000-20VF3
2000-40VF3
2000-10VF4
2000-20VF4
2000-40VF4
2000-10VF5
2000-20VF5
2000-40VF5
Range
0-10 in w.c. & 0-20 SCFM air
0-20 in w.c. & 0-30 SCFM air
0-40 in w.c. & 0-40 SCFM air
0-10 in w.c. & 0-50 SCFM air
0-20 in w.c. & 0-70 SCFM air
0-40 in w.c. & 0-100 SCFM air
0-10 in w.c. & 0-85 SCFM air
0-20 in w.c. & 0-120 SCFM air
0-40 in w.c. & 0-160 SCFM air
0-10 in w.c. & 0-200 SCFM air
0-20 in w.c. & 0-290 SCFM air
0-40 in w.c. & 0-395 SCFM air
0-10 in w.c. & 0-350 SCFM air
0-20 in w.c. & 0-500 SCFM air
0-40 in w.c. & 0-675 SCFM air
Line
Size
1
1
1
1-1/2
1-1/2
1-1/2
2
2
2
3
3
3
4
4
4
Line Size
1 FNPT
1.5 FNPT
2 FNPT
3 FNPT
4 FNPT
A
4.500
6
7.750
11
14.500
B
2.687
2.562
2.562
2.734
2.734
ØC
2
2.500
3
4
5.000
D
2.015
2.625
3.312
4.625
5.172
E
2.125
2.375
2.875
4
5.000
F
3.125
3.375
3.875
5.500
6.500
G
1.359
2
2.703
4
5.328
K
6.375
7.125
7.875
9.625
11.500
SPECIFICATIONS
Service: Air and non-combustible, compatible gases. (Natural gas option
available).
Wetted Materials: Aluminum, silicone, acrylic, polycarbonate, high
carbon steel, low carbon steel, brass, paper, acrylic paint, enamel paint, alkyd
coating, nickel plate, zinc plate, helsel FC, 300 series stainless steel, PTFE,
Loctite® AV sealant, commercial black rubber, neoprene, samarium cobalt, nickel
alloy steel cover, beryllium copper.
Housing: Die cast aluminum case and bezel, with acrylic cover. Exterior finish is
coated gray to withstand 168 hour salt spray corrosion test.
Accuracy: ±2.5% FS.
Pressure Limits: -20 Hg to 15 psig (-0.677 bar to 1.034 bar); MP option: 35 psig
(2.41 bar). For applications with high cycle rate within gage total pressure rating,
next higher rating is recommended.
Overpressure: Relief plug opens at approximately 25 psig (1.72 kPa).
Temperature Limits: 20 to 140°F (-6.67 to 60°C).
Size: 4 (101.6 mm) diameter dial face.
Mounting Orientation: Diaphragm in vertical position. Consult factory for other
position orientations.
Process Connection: Female NPT of nominal line size. (See chart).
Weight: Gage only: 1 lb 2 oz (510 g), MP & HP 2 lb 2 oz (963 g); Venturi: see
chart.
Weight (Not Including Gage)
lb (kg)
3 (1.36)
3 (1.36)
3 (1.36)
4.5 (2.04)
4.5 (2.04)
4.5 (2.04)
6 (2.72)
6 (2.72)
6 (2.72)
11 (4.99)
11 (4.99)
11 (4.99)
18 (8.16)
18 (8.16)
18 (8.16)
Loctite® is a registered trademark of Henkel Corporation
174
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
175_Layout 1 7/8/14 11:11 AM Page 175
Series
500
Sight Window
Shows Level or Contents of Tanks, Pipelines; Tempered, Replaceable Glass Window
A NPT
D
ØB
C HEX
REPLACEABLE WINDOW!
Model
SFI-500-3/4
SFI-500-1
SFI-500-1-1/4
SFI-500-1-1/2
SFI-500-2
SPECIFICATIONS
Service: Compatible gases and liquids.
Wetted Materials:
Window: Tempered glass;
Body: Brass, carbon steel, or 316 SS;
Gasket: Buna-N on brass and carbon steel body, PTFE on 316 SS body.
Temperature Limit: 200°F (93°C).
Pressure Limit: 125 psig (8.6 bar).
Connections: 3/4 to 2 male NPT.
APPLICATIONS
€ Hydraulic tanks
€ Pressure vessels
€ Coolant tanks
€ Hydraulic lines
€ Oil reservoirs
Model
Brass
SFI-500B-3/4
SFI-500B-1
SFI-500B-1-1/4
SFI-500B-1-1/2
SFI-500B-2
Model
Carbon Steel
SFI-500CS-3/4
SFI-500CS-1
SFI-500CS-1-1/4
SFI-500CS-1-1/2
SFI-500CS-2
FLOW
Sight Window
Shows Level or Contents of Tanks, Pipelines; Fused Glass and Steel Construction
A NPT
ØB
C HEX
Model
SFI-550-1/4
SFI-550-3/8
SFI-550-1/2
SFI-550-3/4
SFI-550-1
SFI-550-1-1/4
SFI-550-1-1/2
SFI-550-2
D
Model
SFI-550-1/4
SFI-550-3/8
SFI-550-1/2
SFI-550-3/4
D
3/16 (4.76)
7/32 (5.56)
7/32 (5.56)
5/16 (7.94)
5/16 (7.94)
13/32 (10.32)
13/32 (10.32)
13/32 (10.32)
E
5/8 (15.95)
23/32 (18.26)
25/32 (19.84)
15/16 (23.81)
1-1/16 (26.99)
1-7/32 (30.96)
1-7/32 (30.96)
1-9/32 (32.54)
E
Fused glass style sight windows feature glass to metal bond for utmost reliability.
Plated steel bodies have convenient hex wrench surfaces. Connections are standard NPT
in sizes from 1/4˝ to 2˝. Windows are clear, ripple free, and flush with the front face, having
no recess on which dirt might collect.
APPLICATIONS
€ Hydraulic tanks
€ Pressure vessels
€ Coolant tanks
€ Hydraulic lines
€ Oil reservoirs
Dimensions „ Inches (mm)
A
B
C
1/4 11/32 (8.73) 5/8 (15.95)
3/8 7/16 (11.11) 3/4 (19.05)
1/2 9/16 (14.29) 15/16 (23.81)
3/4 3/4 (19.05)
1-1/16 (26.99)
1
15/16 (23.81) 1-3/8 (34.93)
1-1/4 1-3/16 (30.18) 1-3/4 (44.45)
1-1/2 1-7/16 (36.53) 2 (50.80)
2
1-7/8 (47.63) 2-1/2 (63.50)
SPECIFICATIONS
Service: Compatible gases and liquids.
Wetted Materials:
Window: Glass;
Body: Plated steel.
Temperature Limit: 200°F (93°C).
Pressure Limit: 125 psig (8.6 bar).
Connections: 1/4 to 2 male NPT.
Model
SFI-550-1
SFI-550-1-1/4
SFI-550-1-1/2
SFI-550-2
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
175
Sight Flow Indicators
Series
550
E
1-3/8 (35)
1-3/8 (35)
1-9/16 (40)
1-9/16 (40)
1-21/32(42)
E
Tough, tempered glass window resists chemical attack and abrasion. Seamless
gasket assures perfect seal and is easily field replaceable. In addition to the standard
brass body, Model 500 Sight Windows are also available in carbon steel or 316 SS to suit
a wide range of chemical compatibility.
Model
316 SS
SFI-500SS-3/4
SFI-500SS-1
SFI-500SS-1-1/4
SFI-500SS-1-1/2
SFI-500SS-2
Dimensions „ Inches (mm)
A
B
C
D
3/4 3/4 (19)
1-3/8 (35) 45/64 (18)
1
15/16 (24) 1-3/8 (35) 45/64 (18)
1-1/4 1-1/4 (32) 2-1/8 (54) 27/32 (22)
1-1/2 1-27/64 (37) 2-1/8 (54) 27/32 (22)
2
1-1/4 (32) 2-1/2 (64) 15/32 (12)
176_Layout 1 7/8/14 11:14 AM Page 176
Series
SFI-100, SFI-300,
SFI-350, SFI-360,
SFI-400, SFI-700
MIDWEST Sight Flow Indicators
Inexpensive Protection for Expensive Equipment and Systems
Model 400
Model 100, 100MP
FLOW
Model 300, 300MP
Model 360F
Midwest Sight Flow Indicators are manufactured of quality materials and safety tested to
assure long, dependable service at economical prices. Available in window viewing style in the 100
and 300 Series and tube viewing style in the 400 and 700 Series with connection choices of female
NPT, BSPP, or BSPT threaded and flanged. Series 700 has impeller and internal wipers for
cleaning sight tube, which is perfect for fluids with suspended solids. Just rotate the glass tube
and restore full 360° visibility without disrupting the flow.
Sight Flow Indicator Dimensions and Weight
Sight Flow Indicators
Model
100
Series
300
Series
700
Series
400
Series
400F
Series
300F
Series
Body
Length
Size
1/4, 3/8 3.000 (76)
1/2, 3/4 4.000 (102)
1, 1-1/4 4.375 (111)
1-1/2, 2 5.688 (144)
1/4, 3/8 3.063 (78)
1/2, 3/4 4.063 (103)
1, 1-1/4 4.375 (111)
1-1/2, 2 5.500 (140)
1/4, 3/8 2.750 (70)
1/2, 3/4 3.688 (94)
1, 1-1/4, 4.875 (124)
1-1/2
4.500 (144)
1/2
5.125 (130)
3/4
5.625 (143)
1
1-1/4 5.750 (146)
1-1/2 5.875 (149)
6.125 (156)
2
6.250 (159)
3
6.250 (159)
4
5.000 (127)
1
1-1/4 5.125 (130)
1-1/2 5.250 (133)
5.370 (137)
2
5.750 (146)
3
5.750 (146)
4
1-1/2 6.375 (162)
6.500 (165)
2
8.875 (225)
3
10.250 (260)
4
12.500 (318)
6
Depth
1.813 (46)
2.250 (57)
2.563 (65)
3.250 (83)
2.250 (57)
2.750 (70)
3.125 (79)
3.688 (93)
-
Flange
Height
Diameter
2.125 (54) 2.563 (65) 2.625 (67) 3.625 (83) 2.125 (54) 2.563 (65) 2.563 (65) 4.063 (103) 1.500 (38) 2.250 (57) 2.750 (70) (across flats) 3.500 (89)
3.875 (98)
4.250 (108)
4.625 (117)
5.000 (127)
6.000 (152)
7.500 (191)
9.00 (229)
4.250 (108)
4.625 (117)
5.000 (127)
6.000 (152)
7.500 (191)
9.000 (229)
5.000 (127)
6.000 (152)
7.500 (191)
9.000 (229)
11.000 (279)
Viewing
Weight
Area
Diameter lb (kg)
1.1 (0.5)
1.5 (0.7)
2.7 (1.2)
5.5 (2.5)
1.7 (0.8)
2.6 (1.2)
3.0 (1.4)
7.0 (3.2)
0.9 (0.4)
2.4 (1.1)
5.1 (2.3)
1.500 (38) 3.8 (1.7)
1.750 (44) 4.8 (2.2)
2.000 (51 ) 6.2 (2.8)
2.000 (51) 7.6 (3.5)
2.500 (64) 8.7 (4.0)
3.000 (76) 13 (6.0)
4.000 (102) 17 (7.7)
5.000 (127) 25 (11.0)
2.000 (51) 7 (3.2)
2.000 (51) 8 (3.6)
2.500 (64) 12 (5.5)
3.000 (76) 14 (6.4)
4.000 (102) 23 (10.4)
5.000 (127) 31 (14.1)
2.313 (58) 12 (5.5)
2.313 (58) 16 (7.5)
3.000 (76) 38 (17)
4.000 (102) 56 (25)
6.000 (152) 120 (55)
Dimensions are in inches (mm)
176
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
Model 700
Models
€ 100 - Single window with impeller
€ 300 - Double window with impeller
€ 350 - Double window with no indicator
€ 360 - Double window with flapper
€ 400 - Tube type with no indicator
€ 700 - Tube type with impeller and internal wipers to clean glass tube
177_Layout 1 7/21/14 11:27 AM Page 177
SFI-100 & SFI-300 SERIES
Window Style with Threaded Connections
SFI-700 SERIES
Tube Style with Threaded Connections
SPECIFICATIONS
Service: Compatible gases and liquids.
Wetted Materials: Window: Tempered glass; Body: Bronze or 316 SS; Gasket:
Buna-N, fluoroelastomer or PTFE; Indicator: ABS or 316 SS impeller (100 and
300), 304 SS or 316 SS flapper (360).
Temperature Limit: 200°F (93°C); 120°F (48°C) on W2 option.
Pressure Limit: 125 psig (8.62 bar), 150 psig (10.34 bar) on •MPŽ models.
Connections: Threaded.
Mounting Orientation: Horizontal or vertical; 360: Horizontal only.
SPECIFICATIONS
Service: Compatible gases and liquids.
Wetted Materials: Tube: Tempered borosilicate; Body: Brass or 316 SS; Gasket:
Fluoroelastomer; Indicator: Acetal.
Temperature Limit: 212°F (100°C).
Pressure Limit: 230 psig (15.86 bar).
Connections: Threaded.
Example
Example
G2
SPECIFICATIONS
Service: Compatible gases and liquids.
Wetted Materials: Window: Tempered glass; Body: Carbon steel or 316 SS;
Gasket: Buna-N, fluoroelastomer or PTFE; Indicator: 316 SS flapper (360).
Temperature Limit: 200°F (93°C).
Pressure Limit: 150 psig (10.34 bar).
Connections: Flanged.
Mounting Orientation: Horizontal or vertical; 360: Horizontal only.
Example
SFI 360FSS 1-1/2 G1 SFI-360FSS-1-1/2-G1 Sight Flow Indicator;
double window, tempered glass, PTFE
gasket, 316SS body, 304SS flapper, 1-1/2
inch raised face flange connections
Model
SFI
Sight flow indicator, double window, tempered
Designator
glass, Buna-N gaskets standard, raised face
flange connections
Body
350FCS
Carbon steel body, no moving indicator
Style
350FSS
316SS body, no moving 316SS indicator
360FCS
Carbon steel body, 316SS flapper
360FSS
316SS body, 316SS flapper
Body
1-1/2
1-1/2 inch raised face flange connection size
Size
2
2 inch raised face flange connection size
3
3 inch raised face flange connection size
4
4 inch raised face flange connection size
6
6 inch raised face flange connection size
Options
G1 PTFE gasket
G2 Fluoroelastomer gasket
SFI-400 SERIES
Tube Style with Threaded or Flanged Connections
SPECIFICATIONS
Service: Compatible gases and liquids.
Wetted Materials: Tube: Borosilicate; Body: Cast iron or 316 SS; Gasket: PTFE.
Temperature Limit: 200°F (93°C).
Pressure Limit: 50 psig (3.45 bar).
Connections: Threaded or flanged.
Example
SFI 400SS 1-1/2 SFI-400SS-1-1/2 Sight Flow Indicator; tube
type, borosilicate tube, PTFE gaskets, 316SS
body, 1-1/2 inch female NPT connections
Model
SFI
Sight flow indicator, tube type, borosilicate tube,
Designator
PTFE gaskets
Body
400CI
Female NPT connections, cast iron body (only
Style
for 1 through 2 inch sizes)
400SS
Female NPT connections, 316SS body
400F
Raised face flange connection, 316SS body
(only for 1 inch and up sizes)
Body
1/2 1/2 inch connection size
Size
3/4 3/4 inch connection size
1
1 inch connection size
1-1/4 1-1/4 inch connection size
1-1/2 1-1/2 inch connection size
2
2 inch connection size
3
3 inch connection size
4
4 inch connection size
(Best for use in vertical pipelines where there are no mechanical strains)
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
177
Sight Flow Indicators
SFI-300F SERIES
Window Style with Flanged Connections
SFI-700SS-1-1/2 Sight Flow Indicator; tube
type with 8 blade Acetal impeller and
integral wipers to clean tube interior,
tempered borosilicate tube,
Fluoroelastomer gaskets, 316SS body, 11/2 inch female NPT connections
Model
SFI
Sight flow indicator, tube type with 8 blade
Designator
Acetal impeller and integral wipers to clean
tube interior, tempered borosilicate tube,
Fluoroelastomer gaskets
Body
700
Brass body
Style
700SS
316SS body
Body
1/4
1/4 inch female NPT connection size
Size
3/8
3/8 inch female NPT connection size
1/2
1/2 inch female NPT connection size
3/4
3/4 inch female NPT connection size
1
1 inch female NPT connection size
1-1/4
1-1/4 inch female NPT connection size
1-1/2
1-1/2 inch female NPT connection size
BSPT BSPT threads
Options
BSPP BSPP threads
SFI 700SS 1-1/2
FLOW
SFI-300SS-2-G2 Sight Flow Indicator;
double window, temper glass,
Fluoroelastomer gaskets, 316SS body, ABS
impeller, 2 inch female NPT connections.
Model
Sight flow indicator, tempered glass
SFI
Designator
standard, Buna-N gaskets standard, female
NPT connections standard.
Body
Single window, bronze body, ABS Impeller
100
Style
Double window, bronze body, ABS Impeller
300
Double window, bronze body, no moving
350
indicator
Double window, bronze body, 304SS flapper
360
Body
316SS body option for 300, 350, 360
SS
Options
150 psig maximum pressure option,
MP
includes Fluoroelastomer gaskets
Body
1/4 inch connection size
1/4
Size
3/8 inch connection size
3/8
1/2 inch connection size
1/2
3/4 inch connection size
3/4
1 inch connection size
1
1-1/4 inch connection size
1-1/4
1-1/2 inch connection size
1-1/2
2 inch connection size
2
Options
Plexiglass window
W2
PTFE gasket
G1
Fluoroelastomer gasket
G2
316SS Shaft (Not on 350 Model)
S2
Monel Shaft (Not on 350 Model)
S3
ABS impeller with bronze bushing (Not on
I1
350, 360)
316SS impeller (Not on 350, 360)
I2
No impeller (100 only)
I3
316SS Flapper (360 only)
F1
BSPT BSPT threads
BSPP BSPP threads
(Maximum flow on impeller models: 5 FPS with liquids, 5000 FPM with gases)
SFI 300 SS 2
178_Layout 1 7/21/14 9:13 AM Page 178
Vane Operated Flow Switch
Series
V4
Field Adjustable – Dependable Protection Against Flow Variation or
Stopping in Pipelines for Fluids, Gases and Flowing Solids
3-11/32
[84.93]
1-5/8 [41.28]
CLEARANCE FOR
COVER REMOVAL
6-3/4
[171.45]
4-11/16
8
[119.06]
[203.20]
1
[25.40]
FIVE LAYER VANE 316
STAINLESS STEEL DESIGNED
FOR 1-1/2˝ TO 8˝ PIPES
USABLE IN LARGER PIPE
SIZES.
Flow Switches, Paddle
FLOW
Scan here
to watch
product video
Rugged and reliable the Series V4 Flotect® flow switch operates automatically to
protect equipment and pipeline systems against damage from reduction or loss of flow.
The V4 is time tested being installed in thousands of pipelines and processing plants around
the world. A unique magnetically actuated switching design gives superior performance.
There are no bellows, springs, or seals to fail. Instead, a free-swinging vane attracts a
magnet within the solid metal switch body, actuating a snap switch by means of a simple
lever arm.
FEATURES
€ Leak proof body machined from bar stock
€ Choice of custom vane calibrated for your application, Model V4, or field adjustable
multilayer vane, Model V4-2-U (see set point chart)
€ Weatherproof, designed to meet NEMA 4
€ Explosion-proof (listing included in specifications)
€ Installs directly and easily into pipeline with a thredolet, tee, or flange (see
application drawings)
€ Can be used in pipes 1-1/2 and up
€ Electrical assembly can be easily replaced without removing the unit from
installation so that the process does not have to be shut down
€ High pressure rating of 1000 psig (69 bar) with the brass body and 2000 psig
(138 bar) with the 316 SS body
APPLICATIONS
€ Protects pumps, motors and other equipment against low or no flow
€ Controls sequential operation of pumps
€ Automatically starts auxiliary pumps and engines
€ Stops liquid cooled engines, machines and processing when coolant flow is
interrupted
€ Shuts down burner when air flow through heating coil fails
€ Controls dampers according to flow
Model
V4-2-U
V4-SS-2-U
V4-2-U-NH**
V4
V4-SS
V4-NH**
Description
Brass body, universal vane
316SS* body, universal vane
Brass body, universal vane, no housing
Brass body, custom vane
316SS* body, custom vane
Brass body, custom vane, no housing
Consult factory for price and availability of fittings for V4 installation. Thredolets,
bushings, and tees are available in a variety of sizes and materials.
For custom vane models, please supply factory with following information: pipe size,
flow direction (horizontal, up), mounting, pressure, temperature, specific gravity, flow
rates (maximum normal, actuation/deactuation•), etc.
*316SS body with 430SS magnet keeper.
**No Housing Option (-NH) has no approvals.
•When both values are supplied, note which is critical.
178
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
2-23/32
[69.06]
UL AND CSA TYPE
INCLUDES 16 GA LEADS,
6 [152.4] LONG.
ATEX VERSION INCLUDES
TERMINAL BLOCK
EXPLOSION-PROOF HOUSING
WITH 3/4 FEMALE NPT
CONDUIT CONNECTION
SWITCH BODY, SAE 72 BRASS
OR 316 STAINLESS STEEL
1-1/2 MALE NPT
PROCESS CONNECTION
MAGNET KEEPER,
430 STAINLESS STEEL
VANE BLOCK,
316 STAINLESS STEEL
SPECIFICATIONS
Service: Gases or liquids compatible
with wetted materials.
Wetted Materials:
Vane: 316 SS;
Body: Brass or 316 SS standard;
Magnet Keeper: 430 SS standard,
316 SS optional;
Options: Other materials also
available, consult factory (e.g. PVC,
Hastelloy, Nickel, Monel, Titanium).
Temperature Limit: -4 to 275°F (-20 to
135°C) standard, MT high temperature
option 400°F (205°C) [MT option not
UL, CSA, ATEX or IECEx] ATEX and
IECEx options, ambient temperature -4
to 163°F (-20 to 73°C); Process
temperature -4 to 163°F (-20 to 73°C).
Pressure Limit: Brass body 1000 psig
(69 bar), 316 SS body 2000 psig (138
bar), optional 5000 psig (345 bar)
available with 316 SS body and SPDT
switch only.
Enclosure Rating: Weatherproof and
Explosion-proof. **Listed with ULand
CSA for Class I, Groups C and D;
Class II, Groups E, F, and G.
ATEX
0344
II 2 G Ex d IIB T6
Gb -20°CTamb73°C.
-20°CProcess Temp73°C.
EC-Type Certificate No.: KEMA 03
ATEX 2383.
ATEX Standards:EN60079-0: 2009;
EN60079-1: 2007.
IECEx Certified:For Ex d IIB T6 Gb 20°CTamb73°C. -20°CProcess
Temp73°C.
IECEx Certificate of Conformity:IECEx
DEK 11.0071.
IECEx Standards:IEC 60079-0:2007;
IEC 60079-1: 2007.
Zone I. Also FM approved.
Switch Type: SPDT snap switch
standard, DPDT snap switch optional.
Electrical Rating: UL, FM, ATEX and
IECEx models 10A @ 125/250 VAC
(V~). CSA models: 5A @ 125/250 VAC
(V~); 5A res., 3A ind. @ 30 VDC (V ).
MV option: 1A @125 VAC (V~); 1A
res., .5A ind. @ 30 VDC (V ). MT
option: 5A @ 125/250 VAC (V~). [MT
and MV option not UL, CSA, FM, ATEX
or IECEx].
Electrical Connections: UL and CSA
models: 16 AWG, 6 (152 mm) long.
ATEX and IECEx unit: Terminal block.
Conduit Connection: 3/4 female
NPT.
Process Connection: 1-1/2 male
NPT.
Mounting Orientation: Within 5° of
vertical for proper operation. Units for
horizontal installation (vertical pipe with
up flow) available.
Set Point Adjustment: For universal
vane: five vane combinations.
Weight: 4 lb 8 oz (1.9 kg).
Agency Approvals: ATEX, CE, CSA,
FM, IECEx, UL**.
OPTIONS (add as a suffix to the model number):
-D, DPDT contacts
-MV, Gold Plated Contacts, options for dry circuits
(see electrical rating in specification, no listings or approvals)
-MT, High Temperature, option rated 400°F (204°C)
(see electrical rating in specifications, no listings or approvals)
-TRI (increasing flow), -TRD (decreasing flow), Time Delay Relay,
option with 2 SPDT contacts, adjustable from 0-1 to 0-31 minutes.
(no listings or approvals)
-316, 316 SS Magnet Keeper, option to replace standard 430 SS
-V, Vertical Up Flow, option for upward flow in vertical pipe
-AT, ATEX compliant construction
-IEC, IECEx certified construction
179_Layout 1 7/21/14 11:51 AM Page 179
V4 Universal Vane Flow Charts
Values shown in both charts are nominal. If normal flows exceed actuation rates by less than 10%, custom vanes are recommended.
Figures are based on standard vertical installation in a 1-1/2" Threaded Branch Connection in a horizontal run of pipe.
Approximate Actuation/Deactuation Flow Rates for Cold Water.
Upper Figures in GPM. Lower Figures in LPM.
Vane
1.5
2
3
4
6
8
10
12
20
18
16
14
Layers
Pipe
Pipe
Pipe
Pipe
Pipe
Pipe
Pipe
Pipe
Pipe
Pipe
Pipe
Pipe
1
7-3
15-8
45-22
95-40
210-120 375-175 600-300 900-450 1200-600 1400-800 2000-1000 2400-1200
26.67-11.67 56.7-30 167-83.3 367-150 800-450 1417-667 2267-1133 3400-1700 4550-2267 5300-3033 7567-3783 9083-4550
1&2
7-4
23-14
50-35
130-90 230-150 450-250 650-350 900-500 1200-650 1450-800 1800-1000
26.7-15 86.7-53.3 190-132 500-333 867-567 1700-950 2467-1317 3400-1900 4550-2467 5483-3033 6817-3783
1,2,&3
11-7
27-19
80-60 160-115 300-180 450-275 600-350 750-450 1000-600 1200-700
41.7-26.7 102-71.7 300-233 600-433 1133-683 1700-1033 2267-1317 2750-2083 3783-2267 4550-2650
1,2,3,&4
17-12
60-45 120-90
230-150 310-200 430-280 550-360 700-450
850-550
65-45
233-167 450-333 867-567 1167-750 1633-1067 2083-1367 2650-1700 3217-2083
1,2,3,4,&5
40-30 80-65
135-100 200-140 290-200 360-250 460-325
575-400
152-113 300-250 517-383 750-533 1100-750 1367-950 1733-1233 2183-1517
Actuation rates are based on cold water at a specific gravity of 1.0.
For fluids of different specific gravity, actuation rates may be approximated by dividing the rate shown by the square root of the specific gravity.
Approximate Actuation/Deactuation Flow Rates for Cold Air.
Upper Figures in SCFM. Lower Figures in LPS.
Vane
Layers
1
1.5
Pipe
32-17
15-8
1&2
2
Pipe
65-32
30-20
23-13
10-6
1,2,&3
4
Pipe
400-200
190-90
195-140
90-70
135-100
60-50
65-50
30-20
1,2,3,4,&5
6
Pipe
950-475
450-220
550-375
260-180
375-265
180-130
260-200
120-90
130-100
60-50
8
Pipe
1550-850
730-400
1100-700
520-330
725-500
340-240
500-400
240-190
310-250
150-120
10
Pipe
2400-1300
1100-600
1850-1200
870-570
1200-850
570-400
875-700
410-330
650-525
310-250
12
Pipe
3450-1900
1600-900
2700-1750
1300-800
1850-1300
870-610
1250-1000
590-470
1000-800
470-380
16
Pipe
6400-3500
3000-1700
4800-3100
2300-1500
3350-2350
1600-1100
2500-2000
1200-900
2200-1750
1040-830
14
Pipe
4700-2600
2200-1200
3400-2200
1600-1000
2600-1800
1200-800
1900-1500
900-710
1600-1250
760-590
18
Pipe
8000-4400
3800-2100
6000-3900
2800-1800
4300-3000
2000-1400
3100-2500
1500-1200
2800-2250
1300-1100
20
Pipe
10000-5500
4700-2600
7400-4800
3500-2300
5300-3700
2500-1700
3900-3100
1800-1500
3550-2850
1700-1300
FLOW
1,2,3,&4
3
Pipe
210-105
100-50
120-70
60-30
60-48
30-20
Actuation rates are based on air at standard conditions.
For gases at other pressures, temperatures, or specific gravities, consult factory for equivalent flow approximations.
Application Drawings
For Flotect® Automatic Flow Switches
3/4˝ NPT FOR CONDUIT
1-1/2 THREADED BRANCH
CONNECTION
CUT 1-15/16 MIN.
HOLE IN PIPE
REQUIRED FLOW HOLDS
SWITCH OPEN WHEN FLOW
SLOWS, VANE DROPS,
ACTUATION SWITCH
ALUMINUM ENCLOSURE
FOR ELECTRICAL
CONNECTIONS
SWITCH BODY MACHINED
FROM BAR OF BRASS OR
STAINLESS STEEL
2-1/2 X
1-1/2 FACE
OR HEX
BUSHING
Ø1-15/16
[49.21]
MINIMUM
HOLE IN
PIPE
1-1/2
THREDOLET
Ø2-7/8
[73.03]
MINIMUM
HOLE IN
PIPE
2-1/2
THREDOLET
FLOW
1-1/2 x 1-1/2x 1-1/2
Tee Installation
FLOW
FLOW
FLOW
2-1/2 Threaded
Branch Connection
Standard Installation
Threaded Branch Connection Installation.
May also be installed using tee, flange or coupling.
1-1/2
3000 LB
COUPLING
ANSI RF
THREADED
REDUCING
FLANGE
2-1/16
[52.39]
BORE I.D.
*
ANSI RF
WELDING
NECK
FLANGE
1
[25.40]
A
FLOW
FLOW
*Flange face to pipe O.D.
specified by customer. Normally
should not exceed 5 (172)
Flange Installation
2x2x2
Tee Installation
FLOW
Pipe Size
2
3
4
Dim. •AŽ
2-5/8 (66.7)
2-1/2 (63.5)
2-7/16 (61.9)
Not Recommended, Unless
Coupling is Bored Out to
2-1/16 (52.4) As Shown
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
179
Flow Switches, Paddle
THREADED COVER IS
EASILY REMOVED FOR
ACCESS TO SWITCH
180_Layout 1 7/8/14 11:16 AM Page 180
Series
V6
Mini-Size Flow Switches
Monitor flow in 1/2˝ to 2˝ pipe, Explosion-proof
6-5/16
[160.34]
LOCKING COLLAR
ASSEMBLY
3/4 NPT
UPPER HOUSING
SWITCH SUPPORTS
SPDT [OR DPDT]
SNAP SWITCH
MAGNET LEVER PIN
MAGNET LEVER
ASSEMBLY
18 GA. LEADS
18 [457.20] LONG
3/4 NPT
SWITCH HOUSING
300 SERIES STAINLESS
STEEL OR BRASS
PISTON 300
SERIES
STAINLESS
STEEL
OR BRASS
MAGNETS
V6 with Tee
LOWER HOUSING-BRASS
OR STAINLESS STEEL
VANE SPRING
VANE PIVOT PIN
VANE PIVOT BRACKET
SNAP RING
1/2
NPT
STAINLESS STEEL VANE
3-3/8
[85.73]
4-3/4
[120.65] SWITCH BODY
1-1/8 [28.58] SQ
300 SERIES
STAINLESS STEEL
OR BRASS
CERAMIC
MAGNET
OUTLET 1/2 NPT
INLET 1/2 NPT
V6 Low Flow
VALVE BODY MATERIAL
300 SERIES STAINLESS
STEEL OR BRASS
3-5/8
[92.08]
O-RING
BUNA-N
HARDWARE [SCREW,
SPRINGS & CHECK
VALVE] STAINLESS STEEL
Flow Switches, Paddle
FLOW
OVERALL LENGTH WITH
1-1/4˝ TEE CONNECTION
APPROXIMATELY 8˝
Scan here to watch product video
Surprisingly compact, the Series V6 Flotect® Flow Switch is engineered to
specifically monitor liquid, gas, or airflows. Operation is simple and dependable with no
mechanical linkage as the flow switch is magnetically actuated. The lower body holds the
flow vane and one magnet, which controls the switch actuating magnet in the separate
upper housing. In most applications the switch is normally off with the pipeline flow forcing
the vane against the vane spring. As the flow decreases the vane spring pushes back the
vane, actuating the switch to signal an alarm or shutdown. Tees are available for installation
in pipelines from 1/2˝ to 2˝, with bushings added the unit is easily adapted to 1/4˝ and
3/8˝ piping.
FEATURES
€ Leak proof lower body machined from bar stock
€ Choice of models in a tee with calibrated vane or field adjustable trimmable vane
€ Weatherproof
€ Explosion-proof (listing included in specifications)
€ Electrical assembly can be easily replaced without removing the unit from the
installation so that the process does not have to be shut down
€ High pressure rating of 1000 psig (69 bar) with brass body and 2000 psig (138
bar) on the 316 SS body (see specifications)
€ Low flow model offers field adjustable set point
€ Easy installation, simply insert the tee in the pipeline and complete electrical
connections
APPLICATIONS
€ Protects pumps, motors and other equipment against low or no flow
€ Controls sequential operation of pumps
€ Automatically starts auxillary pumps and engines
€ Shuts down burner when air flow through heating coil fails
€ Controls dampers according to flow
SPECIFICATIONS
Service: Gases or liquids compatible with wetted materials.
Wetted Materials: Standard V6 Models: Vane: 301 SS; Lower Body: brass or 303
SS; Magnet: ceramic; Other: 301, 302 SS; Tee: brass, iron, forged steel, or 304
SS.
V6 Low Flow Models: Lower Body: brass or 303 SS; Tee: brass or 304 SS;
Magnet: ceramic; O-ring: Buna-N standard, Fluoroelastomer optional; Other: 301,
302 SS.
Temperature Limits: -4 to 220°F (-20 to 105°C) Standard, MT high temperature
option 400°F (205°C) (MT not UL, CSA, ATEX, IECEx or KC) ATEX Compliant AT,
IECEx IECOption and KC (KC Option), Ambient Temperature -4 to 167°F (-20 to
75°C) Process Temperature: -4 to 220°F (-20 to 105°C).
Pressure Limit: Brass lower body with no tee models 1000 psig (69 bar), 303 SS
lower body with no tee models 2000 psig (138 bar). Brass tee models 250 psi
(17.2 bar), iron tee models 1000 psi (69 bar), forged and stainless steel tee models
2000 psi (138 bar), low flow models 1450 psi (100 bar).
Enclosure Rating: Weatherproof and Explosion-proof. Listed with UL and CSA for
Class I, Groups A, B, C and D; Class II, Groups E, F, and G. (Group A on stainless
steel body models only).
ATEX
0344
II 2 G Ex d IIC T6 Gb Process Temp75°C Alternate
Temperature Class T5 Process Temp90°C, 115°C (T4) Process Temp 105°C
consult factory. EC-type Certificate No.: KEMA 04ATEX2128.
ATEX Standards: EN 60079-0: 2009; EN 60079-1: 2007.
IECExCertified:For Ex d IICT6 Gb Process Temp75°C Alternate Temperature
Class T5 Process Temp90°C, 115°C (T4) Process Temp105°C consult factory.
IECExCertificate of Conformity: IECExDEK 11.0039;
IECExStandards: IEC 60079-0:2007; IEC 60079-1:2007;
Korean Certified (KC)for: Ex d IIC T6 Gb Process Temp75°C;
KTLCertificate Number:2012-2454-75.
Switch Type: SPDT snap switch standard, DPDT snap switch optional.
Electrical Rating: UL models: 5A @125/250 VAC. CSA, ATEX and IECEx models:
5A @ 125/250 VAC (V~); 5A res., 3A ind. @ 30 VDC (V ). MV option: .1A @ 125
VAC (V~). MT option: 5A @125/250 VAC (V~). [MT option not UL, CSA, ATEX or
IECEx].
Electrical Connections: UL models: 18 AWG, 18 (460 mm) long. ATEX/CSA
/IECEx models: terminal block.
Upper Body: Brass or 303 stainless steel.
Conduit Connections: 3/4 male NPT standard, 3/4 female NPT on junction box
models.
Process Connection:1/2 male NPT on models without a tee.
Mounting Orientation: Switch can be installed in any position but the
actuation/deactuation flow rates in the charts are based on horizontal pipe runs
and are nominal values.
Set Point Adjustment: Standard V6 models none. Without tee models vane is
trimmable. Low flow models are field adjustable in the range shown. See set point
charts.
Weight: 2 to 6 lb (.9 to 2.7 kg) depending on construction.
Options not Shown: Custom calibration, bushings, PVC tee, reinforced vane,
DPDT relays.
Agency Approvals: ATEX, CE, CSA, IECEx, KTL, UL.
Set Point Charts: See page 181 (Series V6)
180
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
181_Layout 1 7/8/14 11:16 AM Page 181
Example
V6EPB-B-S-2-B-MT flow switch; brass body, brass tee with 3/4 NPT connections, SPDT
snap switch, and high temperature option
Series
V6
Series V6 flow switch
Construction
EP
Explosion proof
Body
B-B
Brass
S-S
SS
Circuit
S
SPDT
(Switch)
D
DPDT
Tee Connection
1
1/2 NPT
Size
2
3/4 NPT
3
1 NPT
4
1-1/4 NPT
5
1-1/2 NPT
6
2 NPT
LF
Low Flow Model (1/2 NPT connections)
Tee
MI
Iron
Material
FS
Forged Steel
B
Brass
S
SS
0
No tee, field trimmable vane**
(For LF Model no tee material chosen, tee material matches body choice)
Options
CSA CSA approved construction with junction box*
AT ATEX compliant construction with junction box
IEC IECEx certified construction with junction box
MV Gold contacts on snap switch for dry circuits (see specifications for ratings)
MT High temperature option rated 400°F (205°C) (see specifications for ratings)*
VIT Fluoroelastomer O-rings in place of Buna-N on low flow models
V6 EP B-B S 2
B MT
*Options that do not have ATEX.
**Vane will be trimmed to the connection size. If full field trimmable vane is desired, must select with tee connection size 6.
FLOW
V6 Set Point Charts - Factory Installed Tee
Approximate ActuationDeactuation Flow Rates for
Cold Water. Upper figures are
GPM, Lower figures in LPM
Pipe Size Actuate Deactuate
1.50
1/2
1.00
5.667
3.83
2.00
3/4
1.25
7.5
4.67
1
3.00
1.75
11.33
6.67
1-1/4
4.00
3.00
15.17
11.3
1-1/2
6.00
5.00
22.67
18.9
2
10.00
8.50
37.83
32.2
V6 Low Flow Set Point Chart
Min-Max Flow Rates in 1/2 Pipe
Media
Actuate Deactuate
GPM-Water .04-0.75 .03-0.60
LPM-Water .15-2.84 .11-2.27
SCFM-Air .18-2.70 .15-2.0
LPS-Air
.09-1.3 .07-.95
Pressure drop (head loss) is a function of both set point and flow rate.
Typically, pressure drop at actuation flow rate listed will be 5-10 psid
(.34-.69 bar). Pressure drops at other flow rates will vary in proportion
to the (change in flow).
Model
V6EPB-B-S-1-B
V6EPB-B-S-2-B
V6EPB-B-S-3-B
V6EPB-B-S-4-B
V6EPB-B-S-5-B
V6EPB-B-S-6-B
V6EPB-B-S-1-MI
V6EPB-B-S-2-MI
V6EPB-B-S-3-MI
V6EPB-B-S-4-MI
V6EPB-B-S-5-MI
V6EPB-B-S-6-MI
V6EPS-S-S-1-FS
V6EPS-S-S-2-FS
V6EPS-S-S-3-FS
V6EPS-S-S-4-FS
V6EPS-S-S-5-FS
V6EPS-S-S-6-FS
V6EPS-S-S-1-S
V6EPS-S-S-2-S
V6EPS-S-S-3-S
V6EPS-S-S-4-S
V6EPS-S-S-5-S
V6EPS-S-S-6-S
V6EPB-B-S-6-0
V6EPS-S-S-6-0
V6EPB-B-S-LF
V6EPS-S-S-LF
Size
1/2
3/4
1
1-1/4
1-1/2
2
1/2
3/4
1
1-1/4
1-1/2
2
1/2
3/4
1
1-1/4
1-1/2
2
1/2
3/4
1
1-1/4
1-1/2
2
No Tee
No Tee
1/2
1/2
Body
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
Brass
SS
Brass
SS
Tee
Brass
Brass
Brass
Brass
Brass
Brass
Iron
Iron
Iron
Iron
Iron
Iron
FS
FS
FS
FS
FS
FS
SS
SS
SS
SS
SS
SS
None
None
LF, Brass
LF, SS
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
Flow Switches, Paddle
Approximate ActuationDeactuation Flow Rates for
Air. Upper figures are SCFM,
Lower figures in LPM
Pipe Size Actuate Deactuate
6.50
1/2
5.00
180
120
3/4
10.0
8.00
300
240
1
14.0
12.0
420
360
1-1/4
21.0
18.0
600
540
1-1/2
33.0
30.0
960
840
2
43.0
36.0
1200
1020
181
182_Layout 1 7/8/14 11:17 AM Page 182
Vane Operated Flow Switch
Series
V7
Magnetic Linkage
1 NPT
NORMALLY CLOSED
NORMALLY OPEN
COMMON GROUND
11/16
[17.46]
A
3/4
[19.05]
3.702
6-31/32 [177.00]
1-3/8 [34.93]
1/2 FEMALE
NPSM
.554
The Series V7 Flotect® Flow Switch is an inexpensive switch for use with compatible
liquids to start or stop electronic operated equipment when flow or no-flow conditions
occur. Magnetic operation is simple and dependable with no mechanical linkages or seals
to wear or leak. Lower body is machined solid metal bar stock assuring no leak points, no
matter how long the unit is in service. Design is standard weatherproof, meeting NEMA
4X (IP66), for application versatility. Robust vane design is rigid and field trimmable for
set point adjustment.
FLOW
Approximate Actuation-Deactuation
Flow Rates for Cold Water GPM (LPM)
Deactuate
Pipe Size Actuate
6.8 (25.7)
7.5 (28.4)
1
7.6 (28.9)
8.1 (30.8)
1-1/4
11.7 (44.1) 10.9 (41.3)
1-1/2
16.9 (64.0) 15.6 (59.1)
2
19.6 (74.2) 18.1 (68.5)
2-1/2
29.6 (112)
31.6 (120)
3
52.0 (197)
58.0 (218)
4
Contact the factory for different actuation-deactuation rates.
Pipe Size
1
1-1/4
1-1/2
2
3
4
2-37/64
[65.48]
2X 47/64
[18.65]
SPECIFICATIONS
Service: Liquids compatible with
wetted materials that are non-coating
and non-crystallizing.
Wetted Materials: Vane: 301 SS;
Process connection: Brass or 316 SS;
Magnet: Ceramic; Other: 301, 302 SS.
Upper Body Material: Die cast
aluminum.
Temperature Limits: -40 to 250°F (-40
to 121°C).
Pressure Limits: 250 psi (17.2 bar).
Enclosure Rating: Weatherproof,
meets NEMA 4X (IP66).
Switch Type: SPDT snap switch.
Model
V7-WBS-30N
V7-WSS-30N
Body Material
Brass
316 SS
DIM A
1-17/64 [32.15]
1-19/32 [40.48]
1-53/64 [46.43]
2-11/64 [55.17]
2-11/64 [55.17]
2-11/64 [55.17]
Electrical Rating: 10A @ 125, 250,
480 VAC; 1/8 hp @ 125 VAC, 1/4 hp @
250 VAC.
Electrical Connections: 3 screw type,
common, normally open and normally
closed.
Conduit Connection: 1/2 NPSM.
Process Connection: 1 male NPT.
Contact factory for optional tees.
Pipe Size: 1 to 4.
Mounting Orientation: Horizontal or
vertical (actuation flow rates are based
on horizontal pipe runs in the vertical
position). Will not work in vertical pipe
with down flow.
Set Point Adjustment: Vane is
trimmable, see set point chart.
Weight: 1 lb 2 oz (500 g).
Agency Approvals: CE, UL.
Mini-Size Flow Switch
Series
V10
Proof of Flow or No Flow in 1/2 to 2” Pipe,
Low Cost, Leak Proof Body, Weatherproof
4 [101.6]
Flow Switches, Paddle
2-7/8 [73.07]
LOWER
BODY
7/8 HEX
18 AWG LEAD WIRES
19˝ [482.6] LONG
CABLE
1
[25.40]
2-7/8
[73.07]
1/4 [6.35] TRAVEL
TO NORMALLY
CLOSED POSITION
1/2 MALE
NPT
VANE
2-3/8
[61.11]
Normally Open Position
Designed to provide an inexpensive, reliable unit to monitor the presence or
absence of flow in a system. The V10 flow switch is used to monitor unattended equipment
and protect it from costly damage. The V10 flow switch utilizes a rugged, hermetically
sealed reed switch which is encapsulated in a polypropylene switch housing that fits into a
standard heavy duty leak proof brass body or optional 303 SS body. The switch adjustment
allows the user to change the switch to Normally Open (NO) or Normally Closed (NC) in
the field merely by loosening two screws. The switch housing is located outside the process
media, making switch change-over or maintenance easy without interruption of process
flow.
A full size, trimmable SS vane is provided with a removable laminated template. This
template is calibrated for brass or ductile iron reducing tees and forged steel straight
tee/bushing combinations. Allows for field installation in pipelines from 1/2˝ to 2˝ diameter.
A table with approximate actuation and deactivation values is provided below.
Cold Water Flow Rates
Approximate actuation/deactuation
GPM upper, LPM lower
Pipe Trim N.O.
N.C.
1/2
L
2.6/2.3
2.6/2.5
9.8/8.7
9.8/9.5
3/4
J
3.1/2.7
3.1/2.8
11.7/10.2 11.7/10.6
1
H
4.8/4.5
4.8/4.4
18.2/17
18.2/16.7
1-1/4 E
6.2/5.6
6.1/5.6
23.5/21.2 23.1/21.2
1-1/2 C
8.2/7.7
8.2/7.7
31/29.1
31/29.1
2
Full 9.5/9.1
9.5/9
36/34.4
36/34.1
182
Air Flow Rates
Approximate actuation/deactuation
SCFM upper, LPM lower
Pipe Trim N.O.
N.C.
1/2
L
10.3/8.8
10.2/9.2
291.7/250 288/260
3/4
J
13/11.6
12.9/11.6
368.3/328 365/328
1
H
19.2/17.6 18.9/17.6
543.3/498 535/498
1-1/4 E
24.8/22.2 24.5/22.5
701.7/628 693/637
1-1/2 C
33.4/31.2 33/30.6
946.7/883 935/867
2
Full 50.2/48.4 50.2/47.7
1422/1370 1422/1352
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
Normally Closed Position
SPECIFICATIONS
Service: Compatible gases or liquids.
Wetted Materials:
Vane: 301 SS;
Body: Brass or 303 SS;
Pin and spring: 301 SS, 302 SS and 316 SS;
Magnet: Ceramic 8.
Temperature Limit: 200°F (93°C).
Pressure Limit: Brass body: 1000 psig (69 bar); 303 SS body: 2000 psig (138
bar).
Enclosure Rating: Weatherproof, meets NEMA 4X (IP66).
Switch Type: SPST hermetically sealed reed switch. Field adjustable for normally
open or normally closed.
Electrical Rating: 0.5 A @ 120 VAC; 1.5 A @ 24 VDC res.; 0.001 A @ 200 VDC
res.
Electrical Connections: 18 AWG, 19 (483 mm) long, PVC jacket. Rated 221°F
(105°C).
Process Connection: 1/2 male NPT standard. Contact factory for other options.
Mounting Orientation: Switch can be installed in any position but the
actuation/deactuation flow rates are based on horizontal pipe runs and are nominal
values.
Set Point Adjustment: Vane is trimmable.
Weight: 5.5 oz (0.16 kg).
Agency Approvals: CE, CSA, UR.
Switch Enclosure: Nylon.
Model Body Material
V10
Brass
V10SS 303SS
Switch Configuration
Normally Open or Closed
Normally Open or Closed
183_Layout 1 7/29/14 2:25 PM Page 183
Vane Operated Flow Switch
Series
V8
Field Adjustable – 1 to 6 Inch Pipe, Leak Proof Body
[3] 18 AWG LEAD WIRES,
18 [460] LONG
1.650 DIA. [42]
1/2 NPTM
3 1/16
[78]
SWITCH BODY
1 5/16 [34] OCTAGON
1/2 NPTM
3-1/16
[77.79]
1 NPTM
9 3/8
[238]
12-11/64
[309.17]
5 1/4
[134]
1-21/32
[41.31]
1-5/16 OCTAGON
[33.34]
1 NPTM
FIELD
TRIMMABLE VANE
5-1/4
[133.35]
FIELD TRIMMABLE
VANE
TRAVEL
FLOW
V8-WP2
V8
Scan here to watch product video
Cold Water Flow Rates
Approximate actuation/
deactuation
GPM upper, LPM lower
Pipe Size
1
10.8/9.1
40.9/34.6
1-1/4
9.8/8.3
37.2/31.4
1-1/2
8.6/6.8
32.4/25.7
2
10.9/8.8
41.2/33.4
3
12.9/8.9
48.8/33.5
4
21.1/13.8
79.7/52.2
6
45/33
170.2/124.7
Air Flow Rates
Approximate actuation/
deactuation
SCFM upper, LPM lower
Pipe Size
1
39/32.6
1105/923
1-1/4
37.5/32.2
1062/912
1-1/2
33.4/26.7
945/757
2
43/36.8
1218/1042
3
52.7/38.9
1493/1100
4
87.6/63.6
2482/1802
6
168.6/137.4
4775/3890
APPLICATIONS
Applications are chemical processing, air conditioning, refrigeration, heating systems,
cooling lines, machinery, liquid transfer systems, water treatment, food processing,
and machine tools. Also, other applications compatible with the materials of
construction.
SPECIFICATIONS
Service: Compatible gases or liquids.
Wetted Materials:
Vane and body: Polyphenylene Sulfide (PPS);
Pin and spring: 316 SS or Inconel®;
Magnet: Ceramic 8.
Temperature Limit: 212°F (100°C).
Pressure Limit: 150 psig (10.34 bar).
Enclosure Rating: General purpose, WP/WP2 option is weatherproof.
Switch Type: SPDT snap switch, MV option: SPDT gold contact snap switch.
Electrical Rating: 5A @ 125/250 VAC, 5A resistive, 3A inductive @ 30 VDC;
MV option: 1A @ 125 VAC, 1A resistive, 0.5A inductive @ 30 VDC.
Electrical Connections: 18 AWG, 18 (460 mm) long.
Conduit Connection: 1/2 male NPT, 1/2 female NPT on WP and WP2.
Process Connection: 1 male NPT.
Mounting Orientation: Actuation/deactuation flow rates are based on horizontal
pipe runs and are nominal values. Unit cannot be used with vertical down flow.
Set Point Adjustment: Vane is trimmable.
Weight: 4.5 oz (0.13 kg).
Agency Approvals: CE, cUR, UR.
Series V8, Flow Switch
OPTIONS
Gold Plated Contacts, for dry circuits. Rated 1A @ 125 VAC; 1A resistive, 0.5A
inductive @ 30 VDC. To order add suffix -MV.
Example: V8-MV
Inconel® Alloy Option. Inconel® Alloy replaces standard 316 SS wetted parts.
Wetted parts are Inconel® Alloy, ceramic 8, and Polyphenylene Sulfide. To order add
suffix -INC.
Example: V8-INC
Weatherproof Enclosure. Optional housing is phenylpolioxide and provides
weatherproof protection for electrical wiring.
To order add suffix -WP. (Not UL approved)
Example: V8-WP
Weatherproof Enclosure. Optional housing is aluminum and provides weatherproof
protection for electrical wiring.
To order add suffix -WP2. (Not UL approved)
Example: V8-WP2
Inconel® is a registered trademark of Huntington Alloys Corporation
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
183
Flow Switches, Paddle
V8 Flotect Flow Switch Protects Equipment: Operation is simple and dependable.
In most applications, the switch is normally off while there is sufficient flow of liquid or
air. When flow stops, the vane spring moves the vane, actuating a single pole double throw
switch rated 5A @ 120/250 VAC to start or stop motor, pump, engine, etc. Operate a damper
or valve; shut down a burner or actuate an alarm or signal, protecting unattended
equipment from damage or loss of production.
The V8 Flotect® Flow Switch has a leak proof body and vane constructed of tough durable
polyphenylene sulfide which has excellent chemical resistance. The full size trimmable vane
is provided with molded-in graduations allowing for installation in a 1˝ to 6˝ pipe. Operating
pressures are up to 150 psig (10 bar) and temperatures to 212°F (100°C). The V8 flow
switch can be used in various chemical processes, industrial systems and similar
applications where process conditions are compatible with polyphenylene sulfide, ceramic
8 and 316SS. The V8 Flotect® flow switch is UL recognized as an industrial motor controller
per UL standard 508, suitable for mounting in a protected environment.
®
184_Layout 1 7/8/14 11:18 AM Page 184
Series
FS-2
Vane Flow Switch
Low Cost, Field Adjustable Set Point and Paddle
2-13/32
[61.1]
5 [127]
4-17/64
[108.3]
3-1/32
[77]
5-49/64
[146.5]
x
5-1/8 [130.2]
The Series FS-2 Vane Flow Switch offers an economical flow proving solution. Custom
set points tailored for the application are enabled by field adjustable vane layers and a set
point adjustment screw. The FS-2 features an aluminum weatherproof housing for outdoor
installation. Paddles are adjustable to fit 1˝ to 8˝ size pipe. FS-2 is ideal for use in “flow
or no flow” applications in cold and hot water systems. Perfect for proving flow in boilers,
hot water heaters, and chillers.
Blade Vane
Pipe
Length
Diameter in (mm)
(inch)
Dim. X
1
1.34 (34)
1-1/4
1.34 (34)
1-1/2
2.24 (57)
2
2.24 (57)
2-1/2
3.46 (88)
3
3.46 (88)
4
3.46 (88)
5
6.57 (167)
6
6.57 (167)
8
6.57 (167)
Approximate Actuation and Deactuation Flow Rates
for Water
Maximum Setting
Minimum Setting
GPM (LPM)
GPM (LPM)
Actuate
Deactuate
Actuate
Deactuate
4.0 (15.0)
1.8 (6.7)
8.8 (33.3)
6.6 (25.0)
5.3 (20.0)
2.6 (10.0)
11.4 (43.3)
8.4 (31.7)
7.0 (26.7)
4.0 (15.0)
14.5 (55.0)
11.4 (43.3)
14.1 (53.3) 9.7 (36.7)
31.3 (118.3) 22.5 (85.0)
18.5 (70.0) 15.4 (58.3)
35.2 (133.3) 30.8 (116.7)
27.7 (105.0) 25.1 (95.0)
52.8 (200.0) 46.2 (175.0)
59.4 (225.0) 52.8 (200.0) 123.3 (466.7) 114.5 (433.3)
52.8 (200.0) 39.6 (150.0) 132.1 (500.0) 123.3 (466.7)
75.7 (286.7) 52.8 (200.0) 154.1 (583.3) 140.9 (533.3)
184.9 (700.0) 158.5 (600.0) 396.3 (1500.0) 374.2 (1416.7)
Series
TDFS
Flow Switches,
Thermal
FLOW
Flow Rate Chart
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials:
Bellow: Tin-bronze;
Vane: SS;
Body: Forged brass.
Temperature Limit: 230ºF (110ºC).
Pressure Limit: 145 psig (10 bar).
Enclosure Rating: NEMA 4 (IP64).
Switch Type: SPDT snap switch.
Electrical Rating: 10A res, 3A ind @
250 VAC.
Shown with conduit connection option
Electrical Connection: Cable gland
with attached wire leads or optional
conduit connection.
Process Connection: 1 male NPT or
BSPT.
Mounting Orientation: Switch must be
installed vertically on horizontal pipe
runs.
Set Point Adjustment: Four vane
combinations and an adjustment screw.
Enclosure: Die-cast aluminum alloy.
Weight: 28.22 oz (0.8 kg).
Agency Approvals: CE.
Series FS-2, Paddle Flow Switch
OPTIONS
BSPT Process Connection,
To order add suffix -BSPT.
Example: FS-2-BSPT
Conduit Connection, 1 NPT female conduit connection with no wire leads.
To order add suffix -CND.
Example: FS-2-CND
Thermal Dispersion Flow Switch
Non-Mechanical, Low Pressure Drop
RoHS
CABLE
CABLE GLAND
4-9/32
[108.74]
STATUS
INDICATOR
1-1/8
HEX
SETPOINT
TARGET
Scan here
to watch
product video
The Series TDFS is a thermal flow switch that indicates whether the flow rate is above
or below a user set flow rate with NO and NC NPN outputs. Setpoint is easily field set, just
tap the included magnet on the setpoint target three times at the desired flow rate and it’s
done. Incorporated into the unit are two LED status indicators on opposite sides of the unit
providing visual switch indication, green when the flow is above set point, red when the
flow is below set point.
The TDFS uses an impulse thermal dispersion measurement technique to measure the flow
rate where the probe is heated above the process temperature and then is allowed to cool
down to the process temperature. Empty pipe is not a problem with the TDFS unlike some
competitor units that will overheat. Thermal flow switches can offer better long term
reliability and life expectancy than mechanical flow switches.
TDFS Advantages over Mechanical Flow Switches
€ No paddles or vanes to break off into the flow
€ No jams or material stopping the paddle movement
€ No seals on movement assembly to wear or leak
€ Low pressure drop, only needs to be 10% into the flow (e.g. 1/8 for 3/4 schedule
40 pipe)
TDFS-1-P-06, Thermal flow switch, 6 cable with cable gland*
*Consult factory for longer cable lengths
184
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
1-7/16
[36.51]
PROCESS CONNECTION
1/2˝ NPT
SENSOR
SPECIFICATIONS
Service: Compatible water-based
fluids.
Wetted Materials: 316 SS,
Polysulfone, and FKM.
Setpoint Range: 0.5 to 10 ft/s (0.15 to
3.0 m/s).
Repeatability: 0.07 ft/s +3% of
setpoint.
Typical Deadband: 0.1 ft/s +15% of
setpoint.
Temperature Limits: Process: 5 to
185°F (-15 to 85°C) (non-freezing);
Ambient: 5 to 167°F (-15 to 75°C),
Storage: -40 to 185°F (-40 to 85°C).
Pressure Limits: 300 psig (20.67 bar),
max. momentary surge: 500 psig
(34.47 bar).
Response Time: Approximately 8 s.
Power Requirement: 9 to 24 VDC.
Switching Current: 400 mA, derate 5
mA/°C above 23°C.
Current Consumption: Average: 93
mA, Peak: 300 mA.
Electrical Connection: 4 conductor 22
AWG, 6 (1.83 m) long with cable
gland.
Process Connection: 1/2 NPT male.
Enclosure Rating: NEMA 4X (IP65).
Housing Materials: 316 SS, 416 SS,
polycarbonate, neoprene, and
acrylated urethane.
Switch Type: 1 NO NPN, 1 NC NPN.
Input Power and Protection: 0.5A
fuse (resettable) reverse polarity
protected.
Switched Output Protection: 0.5A
fuse (resettable) reverse polarity
protected.
Agency Approvals: CE, RoHS.
185_Layout 1 7/8/14 11:29 AM Page 185
Series
TSP
Liquid Flow Controller
NO or NC Relay Output, Adjustable Time Delay
Ø2-13/16
[Ø71.44]
3-5/16
[84.14]
3-29/32
[99.22]
“C”
“B”
“A”
Ø2-13/16
[Ø71.44]
3-5/16
[84.14]
3-29/32
[99.22]
Protect pumps and valves from dry running with the Series TSP Liquid Flow
Controller. The Series TSP combine a liquid flow switch with a failsafe relay controller to
detect a flow or no flow situation and provides switching for direct actuation of pumps and
valves. Controller features adjustable time delay, selectable NO or NC operation, and LED
indication of sensor, relay, and power status. Four models (TSP110S, TSP210S, TSP120S,
TSP220S) are designed with an integral flash alarm to provide immediate indication of
local alarm conditions.
Flash Alarm
No
No
No
No
Yes
Yes
Yes
Yes
Wetted Parts
PP
PVDF
PP
PVDF
PP
PVDF
PP
PVDF
Sensor Length
Short
Short
Long
Long
Short
Short
Long
Long
DIM •BŽ
in (cm)
1-5/16 (33.34)
1-5/16 (33.34)
2-13/16 (71.44)
2-13/16 (71.44)
1-9/64 (28.97)
1-9/64 (28.97)
2-13/16 (71.44)
2-13/16 (71.44)
DIM •CŽ
in (cm)
45/64 (17.86)
45/64 (17.86)
2-7/64 (53.58)
2-7/64 (53.58)
45/64 (17.86)
45/64 (17.86)
2-7/64 (53.58)
2-7/64 (53.58)
“B”
“A”
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials: Polypropylene/PPS
or polyvinylidene fluoride.
Range: 0.04 to 3 fps (1.2X10-2 to .91
m/s).
Temperature Limits: -40 to 158°F
(-40 to 70°C).
Pressure Limits: 150 psi (10 bar) @
77°F (25°C), derated 1.67 psi (.113
bar) per °C above 25°C.
Relay Output: 1 SPDT form C,
isolated and sealed.
Relay Load: 250 VAC, 10 A resistive,
1/2 hp.
Switching Mode: Selectable NO or
NC.
Supply Voltage: 120/240 VAC, 50/60
Hz, selectable.
Current Consumption: .25 amps
maximum.
Sensor Voltage Supply: 13 VDC, 1
Watt max., nominal.
Sensor Trigger Point: Dry <10 mA,
wet >10 mA.
Time Delay: Adjustable, 0.15 to 60
seconds.
Flash Type: *Xenon tube.
Flash Frequency: *1 per second.
Brightness: *>50,000 CP.
Strobe Life: *10 M cycles.
Conduit Connection: 1/2 NPT.
Mounting Connection: 3/4 NPT.
Enclosure: Polypropylene, flame
retardant, probe NEMA 4X (IP65).
Agency Approvals: CE.
Thermal Dispersion Flow Switch
Flow Switches,
Thermal
Series
TDS
DIM •AŽ
in (cm)
6-1/2 (165.1)
6-1/2 (165.1)
7-29/32 (200.82)
7-29/32 (200.82)
8-5/16 (211.14)
8-5/16 (211.14)
9-13/16 (249.24)
9-13/16 (249.24)
Adjustable Switch Point, LED Indication
3/4 NPT
Ø1-1/16
[26.99]
Ø45/64
[17.86]
"B"
"A"
Dim. TDS112, TDS212 TDS122, TDS222
A
3.0 (7.6 cm)
4.5 (11.4 cm)
B
0.7 (1.8 cm)
2.1 (5.3 cm)
The Series TDS Thermal Dispersion Flow Switch offers solid state flow detection
of non-coating liquids for pump and process protection. SPDT output allows for interfacing
with remote PLC or relay control device. The adjustable switch point is factory calibrated
at 0.2 fps with LED indication of flow and calibration status. Units feature selectable NO
or NC operation and are not damaged by overranging flow velocities.
Model
TDS112
TDS212
TDS122
TDS222
Wetted Parts
PP/PPS
PVDF
PP/PPS
PVDF
Length
3.0 (7.6 cm)
3.0 (7.6 cm)
4.5 (11.4 cm)
4.5 (11.4 cm)
SPECIFICATIONS
Service: Liquids.
Wetted Materials: Polypropylene /PPS
or polyvinylidene fluoride.
Range: 0.04 to 3 fps (1.2X10-2 to .91
m/s).
Temperature Limits: 32 to 140°F (0 to
60°C).
Pressure Limits: 150 psi (10 bar) @
25°C, derated @ 1.667 psi (.113 bar)
per °C above 25°C.
Repeatability: ±5% of setpoint.
Switch Type: SPDT.
Electrical Rating: 60 VAC/60 VDC @
1 A.
FLOW
Model
TSP110
TSP210
TSP120
TSP220
TSP110S
TSP210S
TSP120S
TSP220S
“C”
Model
TSP110
TSP210
TSP120
TSP220
TSP110S
TSP210S
TSP120S
TSP220S
Electrical Connections: 22 AWG 3wire, 10 ft (3 m) length.
Process Connections: 3/4 male NPT.
Mounting Orientation: Any
orientation, for pipe sizes 3/4 to 1-1/2
use 3.0 (7.6 cm) length switch; for 2
to 16 pipe sizes use 4.5 (11.4 cm)
length switch.
Setpoint Drift: 0.5% of setpoint.
Response Time: 1-10 seconds.
Viscosity Range: 1 to 200 centipoise.
Supply Voltage: 12 to 36 VDC.
Consumption: 50 mA (nominal).
Indication: LED for flow status.
Weight: 3 oz (94 g).
Agency Approvals: CE.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
185
186_Layout 1 7/8/14 11:19 AM Page 186
Series
P2
Flow Switch
Ideal for Air and Post-Filtered Water Applications, Fixed Set Point, FDA Compliant
1
[25.40] 25/32
[19.84]
4-5/16
[109.54]
FLOW
The compact Series P2 Flow Switch utilizes a piston-type design for both air and pure
water applications. The switches have preset actuation points from 0.05 to 1.0 GPM for
water and 25 CFH to 5 CFM for air. The piston design incorporates a hermetically sealed
SPST magnetic reed switch. The P2 is comprised of PPE and PS housing and piston and
316 SS spring and stop pin. All wetted parts are FDA compliant. Economical and superior
design make this an excellent switch for pure water equipment, filter life monitoring, heat
exchangers, and cooling applications.
Model
Media
P2-11
Liquids
GPM (LPM) P2-12
P2-13
P2-14
P2-15
Gases
CFM (LPM) P2-16
P2-17
@ 5 psi
P2-18
Actuation Set Point
.05 (.19)
.25 (.95)
.50 (1.89)
1.0 (3.79)
.42 (11.9)
1.0 (28.3)
2.5 (70.8)
5.0 (141.6)
Series
P3
SPECIFICATIONS
Service: Compatible liquids or gases.
Wetted Materials: Housing: PPE & PS (polyphenylene ether and polystyrene);
Piston: PPE & PS and epoxy; Spring and stop pin: 316 SS.
Temperature Limits: 0 to 212°F (-18 to 100°C).
Pressure Limits: 150 psig (10.3 bar) @ 70°F (21°C); 50 psig (3.4 bar) @ 212°F
(100°C).
Switch Type: SPST, N.O.
Electrical Rating: .17A @ 120 VAC, .08A @ 240 VAC, .13A @ 120 VDC, .06A @ 240
VDC.
Electrical Connection: 22 AWG, 18 (45.7 cm), PVC lead wires.
Process Connection: 1/4 male NPT.
Mounting Orientation: Any position. Set points shown are based on vertical, inlet
down position.
Required Filtration: 50 microns or better.
Weight: 2 oz (.06 kg).
Agency Approvals: CE.
Polypropylene Flow Switch
Fixed Set Points from 0.25 to 2.0 GPM, 3/8” NPT or “Quick Disconnect” Adapters
11/16 HEX
[17.46]
Flow Switches,
Shuttle/Piston
1 [25.4]
FLOW
3/4 ACROSS FLATS
[19.05]
Ø7/16
[Ø11.11]
1 [25.4]
4-15/64
[107.55]
FLOW
11/16 HEX
[17.46]
3/8 NPT
TYP
4 [101.6]
3/4 ACROSS FLATS
[19.05]
Fit almost any piping requirements with the Series P3 Polypropylene Flow Switch.
The basic piston design consists of a hermetically sealed SPST normally open reed switch.
Choose the inlet and outlet port to be 3/8˝ male NPT or 1/4˝ male “Quick Disconnect”.
Select a quick disconnect acetal adapter for straight through flow or with a shut off valve.
The shut off valve will stop line flow when the adapter is removed from the switch. The
flow will resume when the adapter is reconnected. With many snap-on fittings to choose
from, any flow application can integrate the P3 Flow Switch into the existing piping.
Model
P3-31
P3-32
P3-33
P3-34
P3-35
P3-41
P3-42
P3-43
P3-44
P3-45
186
Connection
3/8 NPT
3/8 NPT
3/8 NPT
3/8 NPT
3/8 NPT
Q Disconnect
Q Disconnect
Q Disconnect
Q Disconnect
Q Disconnect
Actuation Set Point
GPM (LPM)
0.25 (.95)
0.50 (1.89)
1.0 (3.79)
1.5 (5.68)
2.0 (7.57)
0.25 (.95)
0.50 (1.89)
1.0 (3.79)
1.5 (5.68)
2.0 (7.57)
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials: Housing:
Polypropylene; Piston: PPS composite;
Spring: 316SS; O-ring: Fluorocarbon.
Temperature Limits: 0 to 212°F (-18
to 100°C).
Pressure Limits: 125 psig (8.6 bar) @
70°F (21°C), 50 psig (3.4 bar) @ 212°F
(100°C).
Accuracy: 20% of set point.
Repeatability: ±1%.
Switch Type: SPST, NO.
Electrical Rating: .08A @ 120 VAC.
Electrical Connection: 24 (60.96 cm),
polymeric wire leads, 22 AWG.
Process Connection: 3/8 male NPT
or 1/4 quick disconnect.
Mounting Orientation: Any position.
Set points shown are based on vertical,
inlet down position.
Required Filtration: 100 microns or
better.
Weight: 5 oz (0.14 kg).
Agency Approvals: CE.
Adapters (Price shown per unit, need two per switch)
Model
Connection
P3-801
Quick disconnect straight through 1/4 NPT
P3-802
Quick disconnect straight through 1/4 BSPT
P3-804
Quick disconnect straight through 3/8 BSPT
P3-807
Quick disconnect straight through 1/4 ID tubing
P3-901
Quick disconnect straight through 1/4 NPT w/shut-off valve
P3-902
Quick disconnect straight through 1/4 BSPT w/shut-off valve
P3-907
Quick disconnect straight through 1/4 ID tubing w/shut-off valve
187_Layout 1 7/8/14 11:19 AM Page 187
Series
P5
PVC Shuttle Flow Switch
Low Cost Flow/No Flow Monitoring, Visual Flow Indication,
Broad Chemical Compatibility
ø1-5/8
[ø41.28]
3-13-16
[96.84]
OR 4-3/8
[111.13]
W/ 1/2 NPT
PORT ADAPTER
A
2 PLACES
B
DIM •AŽ DIM •BŽ
1/2 NPT (2-5/16)
[58.74]
3/4 IPS (2-1/16)
[52.39]
1 IPS
(1-15/16)
[49.21]
1-1/2 [38.1]
OR 2-1/16 [52.39]
W/ 1/2 NPT PORT ADAPTER
Model
P5-1
P5-2
P5-3
Actuation Set Point
GPM (LPM)
.5 (1.89)
.5 (1.89)
2.0 (7.57)
Process Connection
1/2NPT port adapter
3/4 IPS
1IPS
High Pressure Brass Flow Switch
Flow Switches,
Shuttle/Piston
Series
P8
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials: Housing, shuttle and bonnet: PVC; O-ring:Buna-N; Epoxy.
TemperatureLimits: 120°F (49°C).
Pressure Limit: 120 psig (8.2 bar)@ 70°F (21°C) to 100°F (38°C), 50 psig (3.45
bar) @ 101°F (38.3°C) to 120°F (49°C).
Accuracy: ±20% of set point.
Repeatability: ±1%.
Switch Type: SPST, NO.
Electrical Rating: .17A @ 120 VAC, .08A @ 240 VAC, .13A @ 120 VDC, .06A @ 240
VDC.
Electrical Connection: 22 AWG, 24 (61 cm), PVC lead wire.
Process Connection: 1/2 female NPT, 3/4IPS or 1 IPS.
Required Filtration: 150 microns or better.
Mounting Orientation: Vertical, inlet facing down.
Weight: 6 oz (.17 kg).
Agency Approvals: CE.
Up to 1500 psi, Fixed Setpoint, Up to 2.0 GPM, Rugged Brass Body
3/8 NPT TYP
1-9/64
[28.97]
3/4 HEX
[19.05]
3-29/64
[87.71]
High inline pressures are no problem for the Series P8 brass flow switch. The switch
integrates a one-piece magnetic PPS composite piston to handle pressure up to 1500 psi.
The P8 switches use 100 micron filtration and are less susceptible to clogging than other
high inline pressure switches. Setpoints range from 0.25 to 2.0 GPM for liquid flow. Use
the Series P8 in industrial cleaning equipment or high pressure lubrication systems.
Model
P8-11
P8-12
P8-13
P8-14
P8-15
Actuation Set Point
GPM (LPM)
0.25 (.95)
0.50 (1.89)
1.0 (3.79)
1.5 (5.68)
2.0 (7.57)
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials: Housing: Brass; Piston: PPScomposite, epoxy; Spring: 316
SS; O-ring: Fluorocarbon.
Temperature Limits: -20 to 275°F (-28 to 135°C).
Pressure Limits: 1500 psi (103.4 bar).
Accuracy: ±20% of set point.
Switch Type: SPST, NO.
Electrical Rating: .17A @ 120 VAC, .08A @ 240 VAC, .13A @ 120 VDC, .06A @ 240
VDC.
Electrical Connection: No. 22 AWG, 24 (61 cm), polymeric leads.
Process Connections: 3/8 male NPT.
Mounting Orientation: Any position. Set points shown are based on vertical, inlet
down position.
Required Filtration: 100 microns or better.
Weight: 6 oz (.17 kg).
Agency Approvals: CE.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
FLOW
The transparent Series P5 Shuttle Flow Switch features corrosion resistant, durable
PVC housing for visual confirmation in flow/no flow applications. The switches have preset
actuation points from 0.5 to 2.0 GPM for actuation on increasing flow. Switching is SPST
NO no flow. Choose from 1/2˝ NPT or 3/4˝ IPS (for 0.5 GPM) or 1˝ IPS (for 2.0 GPM) inlet
and outlet ports. The shuttle design has only one moving part for long life and minimum
maintenance. Remove the one-piece bonnet and shuttle assembly to quickly clean the unit
without disturbing the housing or piping. Rugged construction and excellent chemical
compatibility simplify flow / no flow detection.
187
188_Layout 1 7/8/14 11:20 AM Page 188
Series
P1
Brass Flow Switch
Fixed Setpoints, Flow Rates from 0.10 to 1.5 GPM
1/2
[12.7]
1/2 NPT
1
[25.4]
IN
1/2
[12.7]
1/4 NPT
2-3/8 [60.33]
1/4 NPT
1-3/4
[44.45]
[1/4 TYP]
[6.35 TYP]
2X [Ø9/32]
[Ø7.14]
OUT
1
[25.4]
1-1/4
27/32 [31.75]
[21.43]
4-1/8 [104.78]
FLOW
The Series P1 Brass Flow Switch utilizes a piston-type design for accurate detection
of excessive or insufficient flow rates. The piston magnetically actuates a hermetically
sealed SPDT reed switch. The switches have preset actuation points from 0.10 to 1.5 GPM
for liquid flow. The Series P1 is ideal for protecting against loss of fluid flow in hydraulic
systems or assuring proper coolant flow in semiconductor processing.
Actuation Set Point*
GPM (LPM)
Model
0.10 (.38)
P1-011
0.25 (.95)
P1-012
0.50 (1.89)
P1-013
0.75 (2.84)
P1-014
1.00 (3.79)
P1-015
1.50 (5.68)
P1-016
*Calibrated for water at standard conditions.
Flow Switches,
Shuttle/Piston
Series
AFS
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials: Housing: Brass; Piston: Polysulfone; Spring: 316SS; O-Ring:
Fluoroelastomer; Other: Epoxy.
Temperature Limits: -20 to 225°F (-29 to 107°C).
Pressure Limits: 1000 psig (68.9 bar).
Accuracy: ±10% of set point.
Repeatability: ±1%.
Switch Type: SPDT.
Electrical Rating: .17A @ 120 VAC, .08A @ 240 VAC, .13A @ 120 VDC, .06A @ 240
VDC.
Electrical Connection: 18 AWG, 24 (60.96 cm), polymeric lead wires.
Process Connection: 1/4 female NPT.
Mounting Orientation: Any position. Set points shown are based on vertical, inlet
down position.
Required Filtration: 50 microns or better.
Weight: 0.66 Ib (301 g).
Agency Approvals: CE.
Adjustable Flow Switch
For Oils, Water and Gases, Infinite Adjustments
2
[50.80]
OUT
3/4
[19.05]
1-1/4
[31.75]
The Series AFS Adjustable Flow Switch is externally adjustable and is ideal for
protecting machine tools from coolant flow failure, protecting bearings from loss of
lubricant or assuring proper air flow. The Series AFS offers an infinite number of flow
settings from 0.5 to 20 GPM at pressures up to 1000 psig, with low pressure drop and
precise repeatability. The AFS is housed in either brass or SS and can be used with water,
compatible liquids, oils, and gases.
Model
AFS-131
AFS-141
AFS-151
AFS-231
AFS-251
AFS-132
AFS-142
AFS-152
AFS-232
AFS-252
188
Media
Oil
Water
Liquids
Gases
Gases
Oil
Water
Liquids
Gases
Gases
Electrical
Connection
Wire leads
Wire leads
Wire leads
Wire leads
Wire leads
1/2 NPT conduit
1/2 NPT conduit
1/2 NPT conduit
1/2 NPT conduit
1/2 NPT conduit
Piston
Brass
Polysulfone
316 SS
Brass
316 SS
Brass
Polysulfone
316 SS
Brass
316 SS
Housing
Brass
Brass
316 SS
Brass
316 SS
Brass
Brass
316 SS
Brass
316 SS
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
1/2 NPT
BOTH ENDS
MAX.
IN
MIN.
4-1/8 [104.78]
SPECIFICATIONS
Service: Compatible gases or liquids.
Wetted Materials: Housing and Piston: See model chart; Spring: 316SS; O-ring:
Fluoroelastomer; Other: Epoxy.
Temperature Limits: -20 to 300°F (-29 to 149°C), -20 to 225°F (-29 to 107.2°C)
with polysulfone piston.
Pressure Limit: 1000 psi (68 bar).
Accuracy: ±10% of setpoint.
Repeatability: ±1% maximum deviation.
Switch Type: SPDT.
Electrical Rating: .17A @ 120 VAC, .08A @ 240 VAC, .13A @ 120 VDC, .06A @ 240
VDC.
Electrical Connections: 18 AWG, 24 (61 cm), polymeric lead wires, optional 1/2
male NPT conduit connection.
Process Connection: 1/2 female NPT ports.
Mounting Orientation: Any.
Setpoint Adjustment: Liquids: 0.5 to 20 GPM (1.9 to 75.7 LPM); Gases: 1.0 to 75
SCFM (28 to 2124 LPM) at 5 psig.
Required Filtration: 50 microns or better.
Weight: 2 lb, 11 oz (1.22 kg).
Agency Approvals: CE.
189_Layout 1 7/15/14 3:34 PM Page 189
Series
GVS
Globe Valve Switch
Adjustable Set Point, Rugged Bronze Construction, Straight Through Flow
1/2 NPT
3
[7.62]
1-25/32 HEX
[45]
1 NPT
3-1/4
[83]
The Series GVS offers accurate flow detection with 1% repeatability and external
adjustability over a broad range of flow settings. The durable construction delivers longlife reliability in either water or oil. Generous flow paths keep pressure drop low. The
GVS are ideal for detection of improper flow rates in high volume lubrication, cooling or
process systems.
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials: Housing: Bronze;
Shuttle: TFE; Bonnet: Bronze; Spring:
316SS.; Other: Fluoroelastomer,
ceramic.
Temperature Limits: -20 to 200°F (-29
to 93°C).
Pressure Limits: 400 psig (27 bar) @
100°F (38°C).
Accuracy: ±10%.
Repeatability: 1% maximum deviation.
Switch Type: SPDT.
Actuation Set Point
Range GPM (LPM)
1.0 - 6.0 (3.8 - 22.7)
5.0 - 15.0(18.9 - 56.8)
2.0 - 8.0 (7.6 - 30.3)
Model
GVS-111
GVS-112
GVS-113
In-Line Flow Alarms
Latching Alarm Capabilities, For Air, Water or Caustic Fluids, Unrestricted Mounting
FLOW
Series
HFO
Electrical Rating: .17A @ 120 VAC,
.08A @ 240 VAC, .13A @ 120 VDC, .06A
@ 240 VDC.
Electrical Connections: 18 AWG, 24
(61 cm), polymeric lead wires.
Process Connections: 1 female NPT.
Mounting Orientation: Any position.
Set points shown are based on
horizontal, lead wires up positional.
Required Filtration: 150 microns or
better.
Weight: 2 lb, 8 oz (1.16 kg).
Agency Approvals: CE.
7-1/8
[180.98]
The Series HFO Flow Alarm provides continuous monitoring and control of flow rate
levels. The flow alarm can be configured to open or close a contact for an increasing or
decreasing set point. The unit includes two 10A SPDT limit switches with field adjustable
alarm settings. Integral direct reading scale provides local indication of flow rate. The flow
alarm is designed to mount in any orientation and does not require inlet or outlet straight
plumbing. The Series HFO is constructed with a rugged cast aluminum NEMA 4X (IP66)
enclosure for installations outdoors or in harsh environments.
SPECIFICATIONS
Service: Compatible gases or liquids.
Wetted Materials:
Body: Aluminum, brass or 304 SS;
Seals: Buna-N or fluoroelastomer;
Magnet: PTFE coated Alnico;
Other internal parts: 304 SS.
Viscosity: 500 SSU.
Temperature Limits: 170°F (76°C).
Pressure Limits: See chart.
Enclosure Rating: NEMA 4X (IP66).
APPLICATIONS
Monitoring flow in chemical processing, waste water processing, lubrication systems,
process control, solar systems, drain lines and pump testing.
Aluminum body for air or other non-corrosive gases: 600 psig (41 bar)
Wetted Parts: Aluminum, PTFE coated Alnico, 304 SS and Buna-N
Model
ConnectionSize
Range, Air SCFM
HFO-21112 1/4 female NPT
1.5-12
HFO-21123 1/4 female NPT
4-23
Brass body for water based fluids (non-steam): 3500 psig (240 bar)
Wetted Parts: Brass, PTFE coated Alnico, 304 SS and Buna-N
Range, Water GPM (LPM)
Model
ConnectionSize
0.5-5.0 (1-19)
HFO-22205 1/2 female NPT
1-15 (3.8-55)
HFO-22315 3/4 female NPT
2-20 (7.5-75)
HFO-22320 3/4 female NPT
4-40 (15-151)
HFO-22440 1 female NPT
5-50 (19-189)
HFO-22550 1-1/2 female NPT
304 SS body for high-pressure fluids: 6000 psig (413 bar)
Wetted Parts: 304 SS, Fluoroelastomer and PTFE
Range, Water GPM (LPM)
ConnectionSize
Model
0.2-2.0 (0.75-7.5)
HFO-23202 1/2 female NPT
1-10 (3.8-38)
1/2
female
NPT
HFO-23210
Pressure Differential VS. Flow Rate
1/4 Female NPT
1.5
1.0
HFO-21112
0.5
0
0
20 25
5
15
10
Flow Rate: SCFM @ 100 PSIG
3/4, 1 & 1-1/2 Female NPT
1/2 Female NPT
HFO-22320
10
HFO-23210
8
6
4
HFO-22205
2
HFO-23202
0
0
2
8
6
4
Flow Rate: GPM
10
Pressure Differential PSID
HFO-21123
Pressure Differential PSID
Pressure Differential PSID
2.0
Accuracy: Measuring ±4% FS over
entire range; ±2.5% over center third of
the measuring range.
Repeatability: ±1% of full-scale.
Switch Type: SPDT, 10A @ 250 VAC;
0.5A @ 125 VDC, (resistive).
Shipping Weight: 1/4 to 1/2 female
NPT models: 3 lb (1.4 kg); 3/4 to 1
female NPT models: 4.5 lb (2.0 kg); 11/2 female NPT models: 12 lb (5.4 kg).
HFO-22315
12
HF0-22440
10
8
6
4
HFO-22550
2
0
0
10
20 30 40 50
Flow Rate: GPM
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
189
Flow Transmitters,
In-Line
4-1/2
[114.3]
2-15/16
[74.61]
190_Layout 1 7/8/14 11:21 AM Page 190
Series
CAM
Compressed Air Meter
Steady-State and Cumulative Totals PNP/4-20 mA Output
4-3/8
[111.13]
3-15/16
[100.01]
3-1/32 C
[76.99]
D
Dimensions
M12 x 1 Model A
CAM-10 10-53/64
[275.3]
C
CAM-20 8-9/32
[210.34]
CAM-30 14-49/64
[375.05]
C
B
18-45/64 2 NPT
[475.06]
11-13/16 1/2 NPT
[300.04]
18-45/64 1 NPT
[475.06]
D
Ø2-1/64
[Ø51.2]
Ø41/64
[Ø16.27]
Ø1-5/64
[Ø27.38]
A
B
The Series CAM Compressed Air Meter operates by the calorimetric measuring
principle to detect the standard volume flow of operating compressed air. It is designed
specifically to evaluate the current flow rate and the current consumed quantity in
compressed air systems. With an easily programmable digital display, this unit offers a
quick, accurate readout. The Series CAM is constructed of high-grade materials and is
virtually maintenance free.
Model CAM-10, 2 NPT, 1.4 - 412.0 SCFM
Model CAM-20, 1/2 NPT, 0.2 - 44.1 SCFM
Model CAM-30, 1 NPT, 1.0 - 132.4 SCFM
FLOW
ACCESSORY
A-283, 4-Wire Connector
Max. Oil Content
Oil
Content
Class mg/m3
0.01
1
0.1
2
1
3
5
4
25
5
…
6
Max. Residual Dust
Dust
Particle
Concentration Size
mg/m3
mg/m
0.1
0.1
1
1
5
5
8
15
10
40
…
…
Series
HFT
Max. Residual Water
Residual Pressure
Water
Dew Point
g/m3
°C
0.003
-70
0.117
-40
0.880
-20
5.953
+3
7.732
+7
9.356
+10
SPECIFICATIONS
Service: Compressed air; Air quality (see chart).
Wetted Materials: SS (304S15), ceramics, glass passivated, PEEK, polyester,
fluoroelastomer, anodized aluminum.
Accuracy: Class 1.4.1: ±3% of measured value +0.3% of full-scale value; Class
3.4.4: ± 6% of measured value + .6% of full-scale value.
Response Time: < 0.1 s.
Temperature Limit: 32 to 140°F (0 to 60°C).
Pressure Limit: 232 psig (16 bar).
Humidity Limit: 90% RH.
Power Requirements: 19-30 VDC.
Output Signal: Output 1: PNP open collector: VOUT(max)=30 VDC /
ISINK(max)=250mA; Output 2: 4-20 mA (scaleable) or PNP open collector.
Loop Resistance: 500 .
Current Consumption: < 100 mA.
Electrical Connections: 4 pin M12 (micro) cable connection.
Process Connections: 1/2, 1 and 2 NPT.
Display: 4-digit alpha numeric red LED.
Enclosure Rating: IP66 (NEMA 4X).
Mounting Orientation: Vertical, horizontal, side with pipe length facing left.
Weight: CAM-10: 12.5 lb; CAM-20: 2.35 lb; CAM-30: 4.16 lb.
Agency Approvals: CE.
In-Line Flow Transmitters
Flow Transmitters,
In-Line
Local Flow Indication, Unrestricted Mounting, 4-20 mA, 0-5 V, and 1-5 V Output
7-1/8
[180.98]
4-1/2
[114.3]
The Series HFT combines a direct reading HF flowmeter with electronics to provide a
proportional analog output of 4 to 20 mA, 0 to 5, and 1 to 5 VDC. Use the output to drive
data acquisition devices, meters, or analog input cards. The entire assembly is housed in
a rugged cast aluminum NEMA 4X (IP66) enclosure. The unit can be installed in outdoor
applications or harsh environments where liquid tight seals are required. The flow
transmitter does not require input or output straight plumbing, and can be mounted in any
orientation.
Aluminum body for air or other non-corrosive gases: 600 psig (41 bar)
Wetted Parts: Aluminum, PTFE coated Alnico, 304 SS and Buna-N
Model
ConnectionSize
Range, Air SCFM
HFT-1112 1/4 female NPT
1.5-12
HFT-1123 1/4 female NPT
4-23
Brass body for water based fluids (non-steam): 3500 psig (240 bar)
Wetted Parts: Brass, PTFE coated Alnico, 304 SS and Buna-N
Range, Water GPM (LPM)
Model
ConnectionSize
0.5-5.0 (1-19)
HFT-2205 1/2 female NPT
1-15 (3.8-55)
HFT-2315 3/4 female NPT
2-20 (7.5-75)
HFT-2320 3/4 female NPT
4-40 (15-151)
HFT-2440 1 female NPT
5-50 (19-189)
HFT-2550 1-1/2 female NPT
SPECIFICATIONS
Service: Compatible gases or liquids.
Wetted Materials: Body: Aluminum, brass or 304 SS; Seals: Buna-N or
Fluoroelastomer; Magnet: PTFE coated Alnico; Other internal parts: 304 SS.
Viscosity: 500 SSU.
Accuracy: ±4% FS over entire range; ±2.5% over center third of the measuring
range.
Repeatability: ±1% of full-scale.
Response Time: < 100 msec.
Output Signal:4 to 20 mA; 0 to 5 V; 1 to 5 V.
Temperature Limits: 170F (76C).
Pressure Limits: See chart.
Power Requirements: 12 to 35 VDC.
Enclosure Rating: NEMA 4X (IP66).
Shipping Weight: 1/4 to 1/2 female NPT models: 3 lb (1.4 kg); 3/4 to 1 female
NPT models: 4.5 lb (2.0 kg); 1-1/2 female NPT models: 12 lb (5.4 kg).
304 SS body for high-pressure fluids: 6000 psig (413 bar)
Wetted Parts: 304 SS, Fluoroelastomer and PTFE
Range, Water GPM (LPM)
Model
ConnectionSize
0.2-2.0 (0.75-7.5)
HFT-3202 1/2 female NPT
1-10 (3.8-38)
HFT-3210 1/2 female NPT
OPTION
For NISTtraceable calibration certificate, use order code NISTCAL-FT1.
190
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
191_Layout 1 7/14/14 7:36 AM Page 191
Series
TFP-GV
Gas Turbine Flow Meter
PPS Body, 0 to 5 VDC Output
15/16
[23.74]
2-21/64
[59.31] 33/64
1-35/64
“A”
[13.21] 2XØ 136 THRU [39.37]
TRIMPOT
1/4
ADJUSTMENT 2-1/32
[6.35]
[51.69]
OPENING
19/64
[7.62]
2xØ.136 THRU
ACETAL
FITTINGS
“A”
29/32
[22.99]
ACETAL
FITTINGS
3/5/16
[84.07]
4-61/64
[125.73]
1-41/64
[41.53]
1/2
[12.70]
29/32
[22.86]
High Flow Configuration
Series TFP-GV Gas Turbine Flow Meters are suitable for a wide variety of industrial,
commercial, and laboratory flow applications. These meters utilize a turbine wheel and
electro-optical detection to convert flow rates into a linear 0 to 5 VDC output signal for
recording and data logging. Couple this unit with a Series FIV Flow Totalizer for a remote
flow monitoring display. A power adapter or mating cable assembly is required for
operation.
Connection
1/8 OD
1/8 OD
1/8 OD
1/8 OD
1/4 OD
1/4 OD
1/4 OD
3/8 OD
3/8 OD
1/2 OD
1/2 OD
Range
.042 to .21 SCFH (.02 to .1 LPM)
.085 to .42 SCFH (.04 to .2 LPM)
.21 to 1.1 SCFH (.1 to .5 LPM)
.42 to 2.1 SCFH (.2 to 1 LPM)
.85 to 4.2 SCFH (.4 to 2 LPM)
2.1 to 11 SCFH (1 to 5 LPM)
4.2 to 21 SCFH (2 to 10 LPM)
8.5 to 42 SCFH (4 to 20 LPM)
21 to 110 SCFH (10 to 50 LPM)
42 to 210 SCFH (20 to 100 LPM)
85 to 420 SCFH (40 to 200 LPM)
A (in)
3-27/64
3-27/64
3-27/64
3-27/64
3-13/16
3-13/16
3-13/16
7-7/64
7-7/64
7-1/2
7-1/2
1-1/4 2-5/32
[31.75] [54.61]
Process Connection: Compression
fitting, see model table.
Power Requirements: 11.5 to 15
VDC.
Power Consumption: 35 mA @ 12
VDC.
Output Signal: 0 to 5 VDC: Minimum
2.5 k load.
Electrical Connections: Four-pin
power and signal connector. A power
adapter or mating cable required for
operation. See accessories table.
Enclosure Rating: IP10 (NEMA 1).
Weight: 0.16 lb (75 g).
Agency Approvals: CE.
FLOW
Model
TFP-GV03
TFP-GV04
TFP-GV05
TFP-GV06
TFP-GV07
TFP-GV08
TFP-GV09
TFP-GV10*
TFP-GV11*
TFP-GV12*
TFP-GV13*
SPECIFICATIONS
Service: Clean dry gases compatible
with wetted materials.
Wetted Materials: PPS, acetal,
sapphire, glass, epoxy, and
fluoroelastomer.
Accuracy: ±3% of full-scale.
Linearity: ±3% of full-scale.
Repeatability: ±0.5% of full-scale.
Temperature Limits: 41 to 131°F
(5 to 55°C); Storage: 32 to 158°F (0 to
70°C); Sensitivity: ±0.2% of full-scale
per °C.
Pressure Limits: 40 psig (2.8 bar).
3-3/64
[77.47]
ACCESSORIES
Model
A-454
A-455
A-456
Description
115 VAC Power Adapter and Signal Cable
230 VAC Power Adapter and Signal Cable
36 Mating Cable with Spliced Leads
*These modes come in high flow configuration
Gas Turbine Flow Meter
PPS Body, 0 to 5 VDC Output, LCD Indication
TRIMPOT ADJUSTMENT
OPENING
19/64
[7.62]
3-1/16
2-1/32 [77.72]
[51.69]
2xØ.136 THRU
Series TFP-GI Gas Turbine Flow Meters are suitable for a wide variety of industrial,
commercial, and laboratory flow applications. These meters utilize a turbine wheel and
electro-optical detection to convert flow rates into a linear 0 to 5 VDC output signal for
recording and data logging. A 3-1/2 digit LCD informs the user of the actual flow rate. A
power adapter or mating cable assembly is required for operation.
Model
TFP-GI03
TFP-GI04
TFP-GI05
TFP-GI06
TFP-GI07
TFP-GI08
Range
.042 to .21 SCFH (.02 to .1 LPM)
.085 to .42 SCFH (.04 to .2 LPM)
.21 to 1.1 SCFH (.1 to .5 LPM)
.42 to 2.1 SCFH (.2 to 1 LPM)
.85 to 4.2 SCFH (.4 to 2 LPM)
2.1 to 11 SCFH (1 to 5 LPM)
Connection
1/8 OD
1/8 OD
1/8 OD
1/8 OD
1/4 OD
1/4 OD
ACCESSORIES
Model
Description
A-454
115 VAC Power Adapter and Signal Cable
A-455
230 VAC Power Adapter and Signal Cable
A-456
36 Mating Cable with Spliced Leads
CABLE
CONNECTION
ACETAL
FITTINGS
33/64
[13.21]
A (in)
3-27/64
3-27/64
3-27/64
3-27/64
3-13/16
3-13/16
BLACK
TRIM LCD
DISPLAY
1/4
[6.35]
“A”
SPECIFICATIONS
Service: Clean dry gases compatible with wetted materials.
Wetted Materials: PPS, acetal, sapphire, glass, epoxy, and fluoroelastomer.
Accuracy: ±3% of full-scale.
Linearity: ±3% of full-scale.
Repeatability: ±0.5% of full-scale.
Temperature Limits: 41 to 131°F (5 to 55°C); Storage: 32 to 158°F (0 to 70°C);
Sensitivity: ±0.2% of full-scale per °C.
Pressure Limits: 40 psig (2.8 bar).
Process Connection: Compression fitting, see model table.
Power Requirements: 11.5 to 15 VDC.
Power Consumption: 35 mA @ 12 VDC.
Output Signal: 0 to 5 VDC: Minimum 2.5 k load.
Electrical Connections: Four-pin power and signal connector. A power adapter or
mating cable required for operation. See accessories table.
Display: LCD, 0.39 (10 mm) digits (only in LPM).
Enclosure Rating: IP10 (NEMA 1).
Weight: 0.23 lb (101 g).
Agency Approvals: CE.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
191
Flow Transmitters,
Turbine
Series
TFP-GI
192_Layout 1 7/8/14 11:23 AM Page 192
Series
TFM-LP
Liquid Turbine Flow Meter
316SS Body, 0 to 5 VDC and Pulse Outputs
29/64
[11.43]
TRIMPOT
51/64
ADJUSTMENT OPENING [20.32]
1-15/32
[37.21]
2X 17/32 2-1/32
[13.34] [51.69]
CABLE
CONNECTION
FLOW
Range
.21 to 1.6 GPH(.013 to .1 LPM)
.32 to 3.2 GPH(.02 to .2 LPM)
.79 to 7.9 GPH(.05 to .5 LPM)
1.6 to 16 GPH(0.1 to 1 LPM)
3.2 to 32 GPH(.2 to 2 LPM)
7.9 to 79 GPH(.5 to 5 LPM)
16 to 160 GPH (1 to 10 LPM)
Connection
1/8 OD
1/4 OD
1/4 OD
1/4 OD
1/4 OD
3/8 OD
3/8 OD
A (in)
3-27/64
3-53/64
3-53/64
3-53/64
3-53/64
4-1/8
4-1/8
ACCESSORIES
Description
Model
115 VAC Power Adapter and Signal Cable
A-454
230 VAC Power Adapter and Signal Cable
A-455
36 Mating Cable with Spliced Leads
A-456
Series
TFM-LI
STAINLESS
STEEL
FITTINGS
1-1/32
[26.04]
2XØ1/8 THRU
Ø.3/16 1/8
Series TFM-LP Liquid Turbine Flow Meters are suitable for a wide variety of
industrial, commercial, and laboratory flow applications. These meters utilize a turbine
wheel and electro-optical detection to convert flow rates into a linear 0 to 5 VDC output
signal for recording and data logging. Couple this unit with a Series TM2 Flow Totalizer
for a remote flow monitoring display. A power adapter or mating cable assembly is required
for operation.
Model
TFM-LP03
TFM-LP04
TFM-LP05
TFM-LP06
TFM-LP07
TFM-LP08
TFM-LP09
“A”
SPECIFICATIONS
Service: Clean liquids compatible with wetted materials.
Wetted Materials: 316 SS, acetal, sapphire, glass, epoxy, and fluoroelastomer.
Accuracy: ±1% of full-scale.
Linearity: ±1% of full-scale.
Repeatability: ±0.2% of full-scale.
Temperature Limits: 41 to 131°F (5 to 55°C); Storage: 32 to 158°F (0 to 70°C);
Sensitivity: ±0.2% of full-scale per °C.
Pressure Limits: 500 psig (34.5 bar).
Process Connection: Compression fitting, see model table.
Power Requirements: 11.5 to 15 VDC.
Power Consumption: 35 mA @ 12 VDC.
Output Signal: 0 to 5 VDC: Minimum 2.5 k load; Pulse: 7.5 VDC peak buffered
square wave.
Electrical Connections: Four-pin power and signal connector. A power adapter or
mating cable required for operation. See accessories table.
Enclosure Rating: IP10 (NEMA 1).
Weight: 0.86 lb (390 g).
Agency Approvals: CE.
Liquid Turbine Flow Meter
Flow Transmitters,
Turbine
316SS Body, 0 to 5 VDC Output, LCD Indication
TRIMPOT ADJUSTMENT
OPENING
1-47/64
[44.09]
BLACK STAINLESS
TRIM LCD STEEL
DISPLAY FITTINGS
2X 1 [25.40]
“A”
2XØ.125 THRU
Ø.188 THRU
19/32
[15.17]
2-1/32
[51.69]
Series TFM-LI Liquid Turbine Flow Meters are suitable for a wide variety of industrial,
commercial, and laboratory flow applications. These meters utilize a turbine wheel and
electro-optical detection to convert flow rates into a linear 0 to 5 VDC output signal for
recording and data logging. A 3-1/2 digit LCD informs the user of the actual flow rate. A
power adapter or mating cable assembly is required for operation.
Model
TFM-LI03
TFM-LI04
TFM-LI05
TFM-LI06
TFM-LI07
TFM-LI08
TFM-LI09
Range
.21 to 1.6 GPH(.013 to .1 LPM)
.32 to 3.2 GPH(.02 to .2 LPM)
.79 to 7.9 GPH(.05 to .5 LPM)
1.6 to 16 GPH (0.1 to 1 LPM)
3.2 to 32 GPH(.2 to 2 LPM)
7.9 to 79 GPH(.5 to 5 LPM)
16 to 160 GPH(1 to 10 LPM)
Connection
1/8 OD
1/4 OD
1/4 OD
1/4 OD
1/4 OD
3/8 OD
3/8 OD
A (in)
3-9/16
3-41/64
3-41/64
3-41/64
3-41/64
3-27/32
3-27/32
ACCESSORIES
Description
Model
115 VAC Power Adapter and Signal Cable
A-454
230 VAC Power Adapter and Signal Cable
A-455
36 Mating Cable with Spliced Leads
A-456
192
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
29/64
[11.43]
19/64
[7.59]
2-63/64
[75.69]
2X 17/32
[13.46]
2-21/64
[59.28]
61/64
[24.10]
1-19/32
[40.64]
SPECIFICATIONS
Service: Clean liquids compatible with wetted materials.
Wetted Materials: 316 SS, acetal, sapphire, glass, epoxy, and fluoroelastomer.
Accuracy: ±1% of full-scale.
Linearity: ±1% of full-scale.
Repeatability: ±0.2% of full-scale.
Temperature Limits: 41 to 131°F (5 to 55°C); Storage: 32 to 158°F (0 to 70°C);
Sensitivity: ±0.2% of full-scale per °C.
Pressure Limits: 500 psig (34.5 bar).
Process Connection: Compression fitting, see model table.
Power Requirements: 11.5 to 15 VDC.
Power Consumption: 35 mA @ 12 VDC.
Output Signal: 0 to 5 VDC: Minimum 2.5 k load.
Electrical Connections: Four-pin power and signal connector. A power adapter or
mating cable required for operation. See accessories table.
Display: LCD, 0.39 (10 mm) digits (only in LPM).
Enclosure Rating: IP10 (NEMA 1).
Weight: 0.80 lb (380 g).
Agency Approvals: CE.
193_Layout 1 7/14/14 7:39 AM Page 193
Series
TFP-LP
Liquid Turbine Flow Meter
PPS Body, 0 to 5 VDC and Pulse Outputs
2-21/64
[59.31]
15/16
[23.74]
CABLE CONNECTION
19/64
[7.62]
Series TFP-LP Liquid Turbine Flow Meters are suitable for a wide variety of
industrial, commercial, and laboratory flow applications. These meters utilize a turbine
wheel and electro-optical detection to convert flow rates into a linear 0 to 5 VDC output
signal for recording and data logging. Couple this unit with a Series TM2 Flow Totalizer
for a remote flow monitoring display. A power adapter or mating cable assembly is required
for operation.
Range
.21 to 1.6 GPH (.013 to .1 LPM)
.32 to 3.2 GPH (.02 to .2 LPM)
.79 to 7.9 GPH (.05 to .5 LPM)
1.6 to 16 GPH (0.1 to 1 LPM)
3.2 to 32 GPH (.2 to 2 LPM)
7.9 to 79 GPH (.5 to 5 LPM)
16 to 160 GPH (1 to 10 LPM)
Connection
1/8 OD
1/4 OD
1/4 OD
1/4 OD
1/4 OD
3/8 OD
3/8 OD
•AŽ (in)
3-9/16
3-41/64
3-41/64
3-41/64
3-41/64
3-27/32
3-27/32
ACCESSORIES
Description
Model
115 VAC Power Adapter and Signal Cable
A-454
230 VAC Power Adapter and Signal Cable
A-455
36 Mating Cable with Spliced Leads
A-456
2XØ9/64 THRU
SPECIFICATIONS
Service: Clean liquids compatible with wetted materials.
Wetted Materials: PPS, acetal, sapphire, glass, epoxy, and fluoroelastomer.
Accuracy: ±1% of full-scale.
Linearity: ±1% of full-scale.
Repeatability: ±0.2% of full-scale.
Temperature Limits: 41 to 131°F (5 to 55°C); Storage: 32 to 158°F (0 to 70°C);
Sensitivity: ±0.2% of full-scale per °C.
Pressure Limits: 100 psig (6.8 bar).
Process Connection: Compression fitting, see model table.
Power Requirements: 11.5 to 15 VDC.
Power Consumption: 35 mA @ 12 VDC.
Output Signal: 0 to 5 VDC: Minimum 2.5 k load; Pulse: 7.5 VDC peak buffered
square wave.
Electrical Connections: Four-pin power and signal connector. A power adapter or
mating cable required for operation. See accessories table.
Enclosure Rating: IP10 (NEMA 1).
Weight: 0.19 lb (85 g).
Agency Approvals: CE.
Liquid Turbine Flow Meter
PPS Body, 0 to 5 VDC Output, LCD Indication
BLACK TRIM
LCD DISPLAY
CABLE
CONNECTION
ACETAL
FITTINGS
33/64
[13.21]
19/64
[7.62]
3-1/16
2-1/32 [77.72]
[51.69]
2XØ.136 THRU
Series TFP-LI Liquid Turbine Flow Meters are suitable for a wide variety of industrial,
commercial, and laboratory flow applications. These meters utilize a turbine wheel and
electro-optical detection to convert flow rates into a linear 0 to 5 VDC output signal for
recording and data logging. A 3-1/2 digit LCD informs the user of the actual flow rate. A
power adapter or mating cable assembly is required for operation.
Model
TFP-LI03
TFP-LI04
TFP-LI05
TFP-LI06
TFP-LI07
TFP-LI08
TFP-LI09
Range
.21 to 1.6 GPH (.013 to .1 LPM)
.32 to 3.2 GPH (.02 to .2 LPM)
.79 to 7.9 GPH (.05 to .5 LPM)
1.6 to 16 GPH (0.1 to 1 LPM)
3.2 to 32 GPH (.2 to 2 LPM)
7.9 to 79 GPH(.5 to 5 LPM)
16 to 160 GPH (1 to 10 LPM)
Connection
1/8 OD
1/4 OD
1/4 OD
1/4 OD
1/4 OD
3/8 OD
3/8 OD
ACCESSORIES
Model
Description
A-454
115 VAC Power Adapter and Signal Cable
A-455
230 VAC Power Adapter and Signal Cable
A-456
36 Mating Cable with Spliced Leads
•AŽ (in)
3-27/64
3-13/16
3-13/16
3-13/16
3-13/16
4-1/8
4-1/8
TRIMPOT
ADJUSTMENT
OPENING
1/4
[6.35]
“A”
SPECIFICATIONS
Service: Clean liquids compatible with wetted materials.
Wetted Materials: PPS, acetal, sapphire, glass, epoxy, and fluoroelastomer.
Accuracy: ±1% of full-scale.
Linearity: ±1% of full-scale.
Repeatability: ±0.2% of full-scale.
Temperature Limits: 41 to 131°F (5 to 55°C); Storage: 32 to 158°F (0 to 70°C);
Sensitivity: ±0.2% of full-scale per °C.
Pressure Limits: 100 psig (6.8 bar).
Process Connection: Compression fitting, see model table.
Power Requirements: 11.5 to 15 VDC.
Power Consumption: 35 mA @ 12 VDC.
Output Signal: 0 to 5 VDC: Minimum 2.5 k load.
Electrical Connections: Four-pin power and signal connector. A power adapter or
mating cable required for operation. See accessories table.
Display: LCD, 0.39 (10 mm) digits (only in LPM).
Enclosure Rating: IP10 (NEMA 1).
Weight: 0.27 lb (121 g).
Agency Approvals: CE.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
193
Flow Transmitters,
Turbine
Series
TFP-LI
ACETAL
FITTINGS
FLOW
Model
TFP-LP03
TFP-LP04
TFP-LP05
TFP-LP06
TFP-LP07
TFP-LP08
TFP-LP09
“A”
1-35/64
[39.37]
TRIMPOT
ADJUSTMENT
OPENING 2-1/32
[51.69]
33/64
[13.21]
1/4
[6.35]
194_Layout 1 7/14/14 7:40 AM Page 194
Series
IPFS
Paddlewheel Flow Sensor
Hot-Tap Option, Field Adjustable Insertion, Wide Flow Range
4
[101.52]
4
[101.42]
2-3/4
[69.70]
PHONE
219-878-8000
FAX
210-872-9057
WEB
WWW.DWYER-INST.COM
MADE IN XXXXXX
2-7/8
[73.06]
Scan here
to watch
product video
Flow Transmitters, Paddlewheel,
Adjustable Insertion
FLOW
The Series IPFS Insertion Paddlewheel Flow Sensor is available for pipe sizes
ranging from 3 to 40˝ and available in brass, PVC or stainless steel. The Series IPFS has
an available hot tap model with a bronze or stainless steel valve assembly. The bearings are
made from ruby jewel to reduce the coefficient of friction and maintain high accuracy. The
Series IPFS can be purchased with a variety of saddle fittings, Series SDF, that comes in
iron or brass. The Series IPFS is good for large pipe and clean water applications. It is
ideal for chemical proportioning applications or any applications with rapidly changing
fluid conductivity.
PRINCIPLE OF OPERATION
The IPFS uses the rotation of an impeller to measure flow. Liquid flow pushes the
rotor and the rotation is detected by a Hall-effect sensor. The output is a current
sinking pulse signal which can be connected to the Series RTI to display flow rate
and total or the Series BAT for a 4 to 20 mA signal conversion.
APPLICATIONS
€ Clean liquids
€ Large pipes
€ Aquariums, water parks
€ Water & wastewater monitoring
ACCESSORIES
€ Series BAT, Blind Analog Transmitter, converts pulse output to 4 to 20 mA analog
output. Unit is loop powered, fits on the enclosure of the meter, and is fields
spannable.
€ Series RTI, Rate Total Indicator, converts pulse output to 4 to 20 mA analog output
with local flow rate and totalization display. Unit is loop powered, can fit on the
enclosure of the meter, and provides a high/low flow alarm.
€ Series PWD, Pulse Divider, for use with pacing electronic metering pumps. Unit
divides the input frequency to any number from 1 to 9999 with the use of rotary
switches to suit a number of metering pump inputs.
Example IPFS 0SB BAF IPFS-0SS-BAF
Insertion Paddlewheel Flow Sensor
Series
IPFS
Hot-Tap
Size
Material
Size/
No Hot-Tap
3 to 12
Brass
Material
0SB
No Hot-Tap
3 to 12
PVC
0SP
No Hot-Tap
3 to 12
SS
0SS
No Hot-Tap
12 to 40
Brass
0LB
No Hot-Tap
12 to 40
PVC
0LP
No Hot-Tap
12 to 40
SS
0LS
Hot-Tap
3 to 12
Brass
1SB
Hot-Tap
3 to 12
PVC
1SP
Hot-Tap
3 to 12
SS*
1SS
Hot-Tap
12 to 40
Brass
1LB
Hot-Tap
12 to 40
PVC
1LP
Hot-Tap
12 to 40
SS*
1LS
Options
CRS Ceramic Shaft
BAF 2 Brass Adapter Fitting (IPFS-0XX only)
SAF 2 SS Adapter Fitting (IPFS-0XX only)
SVA 316 SS Valve Assembly (IPFS-1XX only)
NVA No Valve Assembly (deduct price) (IPFS-1XX only)
BPT 1-1/2 Brass BPT Adapter (2 piece) (IPFS-0XX only)
SPT 1-1/2 SS Adapter (2 piece) (IPFS-0XX only)
EXT 12 Extension (IPFS-XL only)
*SS is stem and fitting. For SS valve order SVAoption.
194
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
Hot-Tap Option
SPECIFICATIONS
Service: Compatible clean liquids.
Range: 0.3 to 30 ft/s (0.01 to 10 m/s).
Wetted Materials:
Shaft Body/Fitting: Brass, PVC, or 316 SS;
Rotor: PVDF;
Shaft: Nickel-bound tungsten carbide;
Bearings: Ruby jewel.
Valve
Assembly: IPFS-1XX:Bronze (SS optional) with bronze ball valve;
O-ring: EPDM.
Accuracy: +1.5% FS.
Temperature Limits: Brass/SS: 200°F (93°C); PVC: 130°F (55°C).
Pressure Limits: Brass/SS: 200 psi (13.8 bar); PVC: 150 psi (10 bar).
Process Connection: IPFS-0XX: 1-1/2 male NPT; IPFS-1XX: 2 male NPT.
Output: Current sinking, square wave pulse.
Power Requirements: 5 to 24 VDC @1.5 mA (3.5 to 16 VDC -LOP option).
Electrical Connection: #22 AWG, 3 conductor, 18´ (5.5 m) cable length standard
(max. 2000´).
Enclosure Material: Housing: Die-cast powder-coated aluminum.
Enclosure Rating: NEMA 4X (IP66).
Weight: IPFS-1XX: 4 lb (1814 g); IPFS-2XX: 6 lb (2721 g); IPFS-3XX: 13 lb
(5897 g); IPFS-4XX: 15 lb (6804 g).
Hot-Tap Option
(Shown installed on pipe)
195_Layout 1 7/21/14 12:05 PM Page 195
Series
PFT
Paddlewheel Flow Sensor
Non-Magnetic Sensing, Insertion Style for 1-1/2 to 40˝ Pipe, Pulse or 4 to 20 mA
1/2˝ NPT
Ø2-1/2
[63.50]
NEW!
4 to 20 mA Output Models
7-29/32
[200.94]
3-13/16
[96.84]
2-25/64
[60.72]
1-1/2˝ NPT
Scan here
to watch
product video
2˝ HEX
[50.80]
APPLICATIONS
€ Irrigation, ground water remediation, cooling systems, pump protection, leak
detection, filtration systems
Body Material Output
Model
4 to 20 mA
PFT-IAN-B111-S Brass
PFT-IAN-S111-S 316 SS
4 to 20 mA
PFT-IDN-B111-S Brass
Pulse
PFT-IDN-S111-S 316 SS
Pulse
Description
1-1/2 NPT connection, FKM seals,
tungsten-carbide shaft, PTFE bearing, 20´ of cable
1-1/2 NPT connection, FKM seals,
tungsten-carbide shaft, PTFE bearing, 20´ of cable
1-1/2 NPT connection, FKM seals,
tungsten-carbide shaft, PTFE bearing, 20´ of cable
1-1/2 NPT connection, FKM seals,
tungsten-carbide shaft, PTFE bearing, 20´ of cable
Consult factory for longer cable lengths, burial rated cable, 2 NPT connection, or other wetted materials.
Compatible Installation Fittings: See page 196 (Series SDF)
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
195
Flow Transmitters, Paddlewheel,
Adjustable Insertion
FEATURES
€ Bearings and shaft offer excellent wear protection even in applications with
particulate for long life
€ Weatherproof and submersible rated for irrigation applications
SPECIFICATIONS
Service: Water-based fluids.
Range: 1.2 to 25 ft/s (0.37 to 7.62 m/s).
Wetted Materials: Body and fitting:Brass or 316 SS; fitting O-ring:FKMstandard,
silicone or Buna-N optional; impeller:316 SS; shaft:Tungsten carbide standard or
316 SS optional; bearing:PTFE standard, carbon graphite optional.
Linearity: ±1.0% of full range.
Repeatability: ±0.5% of full range.
Temperature Limits: -40 to 212°F (-40 to 100°C).
Pressure Limits: 400 psig (27.6 bar) @ 100°F (37.8°C), 325 psig (22.4 bar)@
212°F (100°C).
Process Connection: 1-1/2 NPT male standard, 2 NPT male optional.
Output:
Pulse:NPN open collector with square wave output, rated 60 V @ 50 mA max;
Frequency:3.2 to 200 Hz. Pulse Width:2.5 msec ±25%;
4 to 20 mA:4 mA is 0 ft/s, 20 mA is 25 ft/s.
Power Requirement: 10 to 35 VDC.
Power Consumption: 40 mA (max.).
Electrical Connection: 22 AWG shielded ULtype PTLC rated 105°C, 20´ (6.1 m)
long with cable gland. Can be extended up to 2000´ (609 m) with similar cable.
Optional UL listed burial rated cable.
Enclosure Rating: NEMA 6P (IP67).
Housing Materials: Brass or 316 SS.
Weight: 3 lb.
Agency Approval: CE.
FLOW
The Series PFT is a paddlewheel flow sensor used to monitor liquid flow rates in pipes
from 1-1/2 to 40˝ with just one size adjustable sensor. Multiple wetted material choices
offer application versatility. The PFT is ideal for monitoring water flow rates in irrigation
systems and building automation cooling systems.
The PFT uses inductive sensing to sense the blades of the impeller as they rotate. Sensor
technology does not use magnets allowing low flow rate monitoring and no concerns with
magnetic material in the flow. Two output choices are available in the PFT, pulse or 4 to
20 mA. The pulse models are a square wave output signal with frequency proportional to
the flow velocity. The 4 to 20 mA models have a linear output of the velocity with 4 mA
equal to 0 ft/s and 20 mA equal to 25 ft/s. There are no external components needed to
have the 4 to 20 mA output unlike other competitor products. Paddlewheel, shaft and
bearings are easily field replaceable.
196_Layout 1 7/15/14 3:24 PM Page 196
Series
SDF
Saddle Fittings
Secures TBS, IPFS, IEFS Flow Sensors to 3 to 24˝ Pipe
PIPE DIAMETER
[SEE “PIPE SIZE” IN MODEL CODE]
Iron
SDF-I-XX
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials: See model chart.
Temperature Limits: See flow meter dependent.
Pressure Limits: See flow meter dependent.
Pipe Sizes: 3 to 24.
Weight: Consult factory.
Flow Transmitters, Paddlewheel,
Adjustable Insertion
FLOW
The Series SDF Saddle Fittings are available for pipe sizes ranging from 3 to 24˝ and
securely attach Series TBS, IPFS and IEFS flow meters to process application. Offered in
ductile iron, the SDF can be used with almost any piping arrangement and is provided
with o-rings, simplifying installation.
Example SDF I 03 15
Series
SDF
I
Material
03
Pipe Size
06
08
10
12
14
16
18
20
22
24
Thread
15
Size
20
196
SDF-I-03-15
Saddle Fittings for TBS, IPFS and IEFS Flow Sensors
Iron
3
6
8
10
12
14
16
18
20
22
24
For Series IEFS, IPFS, TBS non hot-tap models (1-1/2 male NPT)
For Series IEFS, IPFS, TBS hot-tap models (2 male NPT)
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
197_Layout 1 7/8/14 11:25 AM Page 197
Series
PDWS
Paddlewheel Flow Sensor
Low Friction Bearings, Long Life
23/32
[18.43]
RETAINING SLOT
[FOR U-CLIP]
3-7/16
[87.45]
O-RING
Scan here
to watch
product video
PRINCIPLE OF OPERATION
Uses the rotation of an impeller to measure flow. Liquid flow pushes the rotor and
the rotation is detected by a Hall-effect sensor. The output is a current sinking pulse
signal that can be connected to the Series RTI to display flow rate and total, or to
the Series BAT for a 4 to 20 mA analog signal.
ACCESSORIES
€ Series BAT, Blind Analog Transmitter, converts pulse output to 4 to 20 mA analog
output. Unit is loop powered, fits on the enclosure of the meter, and is fields
spannable.
€ Series RTI, Rate Total Indicator, converts pulse output to 4 to 20 mA analog output
with local flow rate and totalization display. Unit is loop powered, can fit on the
enclosure of the meter, and provides a high/low flow alarm.
€ Series PWD, Pulse Divider, for use with pacing electronic metering pumps. Unit
divides the input frequency to any number from 1 to 9999 with the use of rotary
switches to suit a number of metering pump inputs.
Example PDWS 1B CRS
PDWS
Series
1B
Size/
1S
Material
1P
1Y
2B
2S
2P
2Y
CRS
Options
IMM
FOR
HPO
PDWS-1B-CRS
Insertion Paddlewheel Flow Sensor
1-1/2 to 3, Brass
1-1/2 to 3, 316 SS
1-1/2 to 3, PVC
1-1/2 to 3, Polypropylene
4 to 8, Brass
4 to 8, 316 SS
4 to 8, PVC
4 to 8, Polypropylene
Ceramic Shaft
Immersible (*Urethane Potted Electrical Connection)
Fluoroelastomer O-ring
High Pressure Options (Use withSSonly)
Note: Need to purchase with Series PWF fitting for proper installation.
Flaretek® is a registered trademark of Entegris, Inc.
Process Connection:See page 198 (Series PWF)
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
197
Flow Transmitters, Paddlewheel,
Fixed Insertion
APPLICATIONS
€ Industrial water/wastewater treatment
€ Cooling water monitoring
€ Industrial fluid control
€ Chemical proportioning
SPECIFICATIONS
Service: Compatible clean liquids.
Range: 0.3 to 30 ft/s (0.09 to 9.14 m/s).
Wetted Materials:
Sensor: Brass, 316 SS, PVC, or Polypropylene;
Rotor: PVDF;
Shaft: Nickel-bonded tungsten carbide (ceramic optional);
Bearings: Ruby jewel;
O-Ring: EPDM (fluoroelastomer optional).
Accuracy: ±1.5% FS.
Temperature Limits: Brass, 316 SS: 200°F (93°C); PVC, Polypropylene: 130°F
(55°C).
Pressure Limits: Brass: 200 psi (14 bar); 316 SS: 250 psi (17 bar); PVC,
Polypropylene: 175 psi (12 bar) @ 75°F (24°C); High Pressure Option: 400 psi (28
bar) (SS only).
Process Connection: See page reference below.
Output: Current sinking, square wave pulse, opto-isolated.
Power Requirements: 6 to 24 VDC, 2 mA (max. 20 mA).
Electrical Connection: #22 AWG, 3 conductor, 18´ (5.5 m) cable (max. 2000´
run).
Enclosure Rating: NEMA 4X (IP66).
Weight: 2 lb (907 g).
FLOW
The Series PDWS Insertion Paddlewheel Flow Sensor is designed for pipe size
ranges from 1/2 to 8˝ with available materials of brass, stainless steel, PVC, and
polypropylene. The bearings are made of high-quality ruby jewel to reduce the coefficient
of friction and maintain high accuracy. The Series PDWS has a wide variety of custom tee,
saddle, or welded fittings that come in bronze, PVC, and stainless steel. The Series PDWS
is ideal for chemical proportioning applications or any applications with rapidly changing
fluid conductivity.
1-19/32
[40.64]
198_Layout 1 7/21/14 12:08 PM Page 198
Series
PWF
Fittings and Tees
Saddles, Tees, and Weld/Braze Fittings for Series PDWS
1-5/8
[41.15]
2-29/64
[62.32]
PWF-S-BXX
PWF-B-PXX
PWF-T-SFT-SS
PWF-S-DXX
Flow Transmitters, Paddlewheel,
Fixed Insertion
FLOW
The Series PWF Fittings and Tees are used with the Series PDWS Insertion
Paddlewheel Flow Sensors. The Series PWF allow for sensor insertion in a wide range of
pipe sizes. Multiple end connections are available to allow for easy installation in many
applications. Series PWF is available in bronze, 304 stainless steel, 316 stainless steel, and
PVC, further expanding application prospects.
Model
PWF-T-BFS
PWF-T-BFT
PWF-T-PME
PWF-T-CFT
PWF-T-SFT
-SS
-HP
Model
PWF-S-DXX
PWF-S-PXX
PWF-S-BXX
-LPS
Model
PWF-W-BXX
PWF-W-CXX
PWF-W-SXX
-HP
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials: See model chart.
Temperature Limits: See model chart.
Pressure Limits: See model chart.
Connections: 1/2 to 8.
Weight: Consult factory.
Tee Fitting Description
Bronze/Female Sweat (For Copper Tubing)
Bronze/FemaleThread
PVC/MaleStubEnd
Carbon Steel/Female Thread
304 SS/Female Thread
All 316 SS Option
High Pressure Option (SS or CSOnly)
Saddle Fitting Description
Ductile Iron
PVC
Bronze
Installed on 16 Long Pipe Stub Option (PVCOnly)
Weld/Braze Fitting Description
Bronze
Carbon Steel
316 Stainless Steel
High Pressure Option (SS or CSOnly)
Example: PWF-T-CFT-0050-SS
To order an all 316 SS female thread 1/2 tee for Series PDWS-1XX Paddlewheel Flow Meter.
198
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
199_Layout 1 7/8/14 11:26 AM Page 199
Series
WM2
Multi-Jet Water Meter
Economical, Brass Body, Dry Dial
W
XX-XX
WM2-X-C-XX
H
L
Size
Spud NPSM
in (mm)
(BSPP)
5/8 x 1/2 (15) 3/4 (3/4)
5/8 x 3/4
1 (1)
3/4 (20)
1 (1)
1 (25)
1-1/4 (1-1/4)
1-1/4 (32)
1-1/2 (1-1/2)
1-1/2 (40)
2 (2)
2 (50)
2-1/2 (2-1/2)
FEATURES
€ Magnetic drive … water is sealed from entering register
€ Dry dial won•t discolor or fade … hermetically sealed from the elements
€ Integral strainer that protects meters from particulate damage
€ Pointer-roller indicator
€ Frost resistant body
€ Includes two mounting adapters (couplings)
Size
5/8 x 1/2
5/8 x 3/4
3/4
1
1-1/2
2
Model
WM2-B-C-08
WM2-B-C-10
WM2-B-C-11
WM2-B-C-12
WM2-B-C-13
WM2-B-C-14
Size
15 mm
20 mm
25 mm
32 mm
40 mm
50 mm
Coupling
Size
1/2 NPT
3/4 NPT
3/4 NPT
1 NPT
1-1/2 NPT
2 NPT
Coupling
Size
1/2 BSPT
3/4 BSPT
1 BSPT
1-1/4 BSPT
1-1/2 BSPT
2 BSPT
Max Flow Nominal Flow Range
GPM (Gallons Per Minute)
20
1 to 10
20
1 to 20
30
2 to 30
50
3 to 50
100
5 to 100
160
80 to 160
Max Flow
m3/h
3
5
7
12
20
30
Nominal Flow Range Transitional Flow
0.12 to 1.5
0.2 to 2.5
0.25 to 3.5
0.48 to 6
0.8 to 10
1.2 to 15
0.03
0.03
0.07
0.12
0.2
0.12
Weight
lb (kg)
3.75 (1.7)
3.97 (1.8)
4.9 (2.2)
6.4 (2.9)
8.2 (3.7)
13.52 (6.17)
18.74 (8.5)
SPECIFICATIONS
Service: Water.
Wetted Materials:
Body: Brass, polyethylene;
Couplings: Brass;
Measuring Chamber: Polyethylene, ABSplastic, ferrite, acetal.
Flow Range: See model chart.
Accuracy: Transitional Flow: ±5%; Nominal Flow: ±2%.
Temperature Limit: 104°F (40°C).
Pressure Limit: 232 psi (16 bar).
Pressure Drop: See service manual.
Totalizing Display Maximum: See model chart.
Mounting Orientation: Horizontal.
Weight: See dimension chart.
Transitional Flow
0.25
0.25
0.25
0.75
1.5
2
Height •H•
in (mm)
4-15/64 (107.5)
4-15/64 (107.5)
4-15/64 (107.5)
4-5/8 (117.5)
4-5/8 (117.5)
5-9/16 (141.5)
6-31/32 (177)
Display Max
(Gallons)
9,999,999.99
9,999,999.99
99,999,999.9
99,999,999.9
99,999,999.9
99,999,999.9
Watermeters
Model
WM2-A-C-01
WM2-A-C-02
WM2-A-C-03
WM2-A-C-04
WM2-A-C-06
WM2-A-C-07
Width •W•
in (mm)
3-45/64 (94)
3-45/64 (94)
3-45/64 (94)
3-55/64 (98)
3-55/64 (98)
4-51/64 (122)
5-45/64 (145)
FLOW
The Series WM2 Multi-Jet Water Meter is ideal for commercial and industrial
applications. The multi-jet design allows for simplicity and accuracy with wide flow ranges,
even in low flow applications. The magnetically driven, hermetically sealed register will
not leak or fog and is completely separated from the water. These water meters are
designed for long service life and maintenance-free operation, even under harsh conditions.
Length •L•
in (mm)
6-1/2 (165)
7-1/2 (190)
7-1/2 (190)
10-1/4 (260)
10-1/4 (260)
11-13/16 (300)
11-13/16 (300)
Display Max
(m3)
99,999.9999
99,999.9999
99,999.9999
99,999.9999
999,999.9999
999,999.9999
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
199
200_Layout 1 7/8/14 11:26 AM Page 200
Series
WMT2
Multi-Jet Water Meter with Pulsed Output
Economical, Brass Body, Dry Dial
W
XX-XX
WMT2-X-C-XX-X
H
L
Watermeters
FLOW
Size
in (mm)
5/8 1/2 (15)
5/8 x 3/4
3/4 (20)
1 (25)
1-1/4 (32)
1-1/2 (40)
2 (50)
The Series WMT2 Multi-Jet Water Meter is ideal for commercial and industrial
applications. The multi-jet design allows simplicity and accuracy with wide flow ranges
even in low flow applications. The meter is designed for long service life and relatively
maintenance-free operation, even under adverse conditions. The magnetically driven,
hermetically sealed register will not leak or fog and is completely separated from the water.
The reed switch is activated by a magnet on the dial, which is directly proportional to the
flow rate. The output is perfect for remote monitoring of flow rate or flow totalization, and
can interface with PLC's, counters, data loggers, and SCADA systems.
FEATURES
€ Magnetic Drive … water is sealed from entering register
€ Dry dial won•t discolor or fade … hermetically sealed from the elements
€ Integral strainer that protects meters from particulate damage
€ Pointer-roller indicator
€ Frost resistant body
€ Pulsed output
€ Includes two mounting adapters (couplings)
Model
WMT2-A-C-01
WMT2-A-C-02
WMT2-A-C-03
WMT2-A-C-04
WMT2-A-C-01-1
WMT2-A-C-02-1
WMT2-A-C-03-1
WMT2-A-C-04-1
WMT2-A-C-06-10
WMT2-A-C-07-10
WMT2-A-C-04-100
WMT2-A-C-07-100
Coupling
Size
1/2´ NPT
3/4´ NPT
3/4´ NPT
1´ NPT
1/2´ NPT
3/4´ NPT
3/4´ NPT
1´ NPT
1-1/2´ NPT
2´ NPT
1´ NPT
2´ NPT
Model
WMT2-B-C-08-1
WMT2-B-C-10-1
WMT2-B-C-11-1
WMT2-B-C-12-1
WMT2-B-C-08-10
WMT2-B-C-12-10
WMT2-B-C-14-10
WMT2-B-C-12-100
WMT2-B-C-14-100
Coupling
Size
1/2´ BSPT
3/4´ BSPT
1´ BSPT
1-1/4´ BSPT
1/2´ BSPT
1-1/4´ BSPT
2´ BSPT
1-1/4´ BSPT
2´ BSPT
200
Size
5/8 x 1/2´
5/8 x 3/4´
3/4´
1´
5/8 x 1/2´
5/8 x 3/4´
3/4´
1´
1-1/2´
2´
1´
2´
Size
15 mm
20 mm
25 mm
32 mm
15 mm
32 mm
50 mm
32 mm
50 mm
Length •L•
in (mm)
6-1/2 (165)
7-1/2 (190)
7-1/2 (190)
10-1/4 (260)
10-1/4 (260)
11-13/16 (300)
11-13/16 (300)
Width •W•
in (mm)
3-45/64 (94)
3-45/64 (94)
3-45/64 (94)
3-55/64 (98)
3-55/64 (98)
4-51/64 (122)
5-45/64 (145)
Pulse Rate
(Gal./Pulse)
0.1
0.1
0.1
0.1
1
1
1
1
10
10
100
100
Nominal Flow Range Transitional Flow Display Max
(m3)
99,999.9999
0.03
0.12 to 1.5
99,999.9999
0.05
0.2 to 2.5
99,999.9999
0.07
0.25 to 3.5
99,999.9999
0.12
0.48 to 6
99,999.9999
0.03
0.12 to 1.5
99,999.9999
0.12
0.48 to 6
999,999.9999
0.3
1.2 to 15
99,999.9999
0.12
0.48 to 6
999,999.9999
0.3
1.2 to 15
Pulse Rate
(L/Pulse)
1
1
1
1
10
10
10
100
100
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
Height •H•
in (mm)
4-15/64 (107.5)
4-15/64 (107.5)
4-15/64 (107.5)
4-5/8 (117.5)
4-5/8 (117.5)
5-9/16 (141.5)
6-31/32 (177)
Weight
lb (kg)
3.75 (1.7)
3.97 (1.8)
4.9 (2.2)
6.4 (2.9)
8.2 (3.7)
13.52 (6.17)
18.74 (8.5)
SPECIFICATIONS
Service: Water.
Wetted Materials:
Body: Brass, polyethylene;
Couplings: Brass;
Measuring Chamber: Polyethylene, ABSplastic, ferrite, acetal.
Flow Range: See model chart.
Accuracy: Transitional Flow: ±5%; Nominal Flow: ±2%.
Temperature Limit: 104°F (40°C).
Pressure Limit: 232 psi (16 bar).
Pressure Drop: See service manual.
Totalizing Display Maximum: See model chart.
Output Signal: Pulse output with frequency proportional to flow rate.
Pulse Options: 0.1 gal, 1 gal, 10 gal, 100 gal per pulse (1 L, 10 L, 100 L per
pulse).
Electrical Rating: 0.01 A @ 24 VAC/DC.
Electrical Connections: Color-coded lead wires, 4.5´ (1.5 m) long.
Mounting Orientation: Horizontal.
Weight: See dimension chart.
Transitional Flow Display Max
(Gallons)
0.25
9,999,999.99
0.25
9,999,999.99
0.25
9,999,999.99
0.75
99,999,999.9
0.25
9,999,999.99
0.25
9,999,999.99
0.25
9,999,999.99
0.75
99,999,999.9
1.5
99,999,999.9
2
99,999,999.9
0.75
99,999,999.9
2
99,999,999.9
Max Flow Nominal Flow Range
GPM (Gallons Per Minute)
20
1 to 10
20
1 to 20
30
2 to 30
50
3 to 50
20
1 to 10
20
1 to 20
30
2 to 30
50
3 to 50
100
5 to 100
160
80 to 160
50
3 to 50
160
80 to 160
Max Flow
m3/h
3
5
7
12
3
12
30
12
30
Spud NPSM
(BSPP)
3/4 (3/4)
1 (1)
1 (1)
1-1/4 (1-1/4)
1-1/2 (1-1/2)
2 (2)
2-1/2 (2-1/2)
201_Layout 1 7/8/14 11:27 AM Page 201
Series
SF
Sight Flow Transmitter
±2% FS Accuracy, 4 to 20 mA Output, Pressure up to 500 psig (34 bar)
2
[50.80]
1/2˝ FEMALE NPT
Series SF Sight Flow Transmitter integrates tangential turbine technology with
hermetically sealed circuitry to provide accurate flow measurement and control in the
harshest environments. The 2-wire loop-powered design transmits a 4 to 20 mA signal
proportional to flow rate. Models can accurately measure flow in both directions and can
be mounted in any orientation. Model SF11 has a clear polycarbonate viewing cover for
visible indication of flow. Units feature LED power indication, adjustable zero and span,
polarity protection and over current limiting.
Model
SF10
SF11
Cover Material
316 SS
Clear Polycarbonate
OPTION
For NISTtraceable calibration certificate, use order code NISTCAL-FT1.
Series
SF2
2-29/64
[62.31]
1-9/64
[28.97]
3-45/64
[94.06]
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials: 316 SS shaft and case, Iglide® bearings, Buna-N seal and
acetal copolymer, (polycarbonate cover on Model SF11).
Flow Range: 0.5 to 15 GPM (2 to 60 LPM).
Accuracy: ±2% FS.
Repeatability: 0.5% full scale.
Temperature Limits: 20 to 225°F (-7 to 107°C).
Pressure Limits: 500 psig (34 bar) Model SF10; 200 psig (14 bar) Model SF11.
Response Time: 2 seconds to 90% (step change in flow rate).
Supply Voltage: 12 to 35 VDC.
Output: 4 to 20 mA.
Loop Resistance: 1150 max.
Process Connection: 1/2 female NPT.
Electrical Connection: Wire leads:
22 AWG x 9´ (2.7 m).
Max. Particle Size: 100m.
Agency Approvals: CE.
Iglide® is a registered trademark of Igus GMBH
FLOW
APPLICATIONS
Ideal for measuring flow rates in cooling and lubrication circuits, HVAC systems,
aggressive chemical metering, and batching systems.
2-5/8
[66.68]
Sight Flow Meters
SPDT or Pulse Output, Visual Flow Confirmation, Brass Body
SF2-2
SF2-1
41/64
[16.27]
Series SF2 Sight Flow Meters combine visual confirmation of flow with a relay or pulse
output. The brass, unibody construction, one piece composite rotor, and ceramic shaft
delivers durability with broader chemical, temperature, and pressure capabilities. For
specific flow setpoint switching, select SF2-1 meters with a SPDT relay output. Setpoints
are fully adjustable over the specified flow range. The dynamic operation of the rotor
guards against jamming and false actuation. For flow rate monitoring or metering
applications, select SF2-2 meters with a pulse output proportional to the rate of flow. The
4.5 to 24 VDC pulse output is compatible with most digital logic families.
SPDT Relay Output
Model Range (GPM)
SF2-104 0.5 to 5.0
SF2-101 0.5 to 5.0
SF2-114 4.0 to 20.0
SF2-111 4.0 to 20.0
SF2-124 5.0 to 30.0
SF2-121 5.0 to 30.0
SF2-134 8.0 to 60.0
SF2-131 8.0 to 60.0
Pulsed Output
Model Range (GPM)
SF2-204 0.5 to 5.0
SF2-214 4.0 to 20.0
SF2-224 5.0 to 30.0
SF2-234 8.0 to 60.0
Power
24 VDC
110 VAC
24 VDC
110 VAC
24 VDC
110 VAC
24 VDC
110 VAC
Connection
1/4 female NPT
1/4 female NPT
1/2 female NPT
1/2 female NPT
3/4 female NPT
3/4 female NPT
1 female NPT
1 female NPT
Power
4.5 to 24 VDC
4.5 to 24 VDC
4.5 to 24 VDC
4.5 to 24 VDC
Connection
1/4 female NPT
1/2 female NPT
3/4 female NPT
1 female NPT
D
B
C
Flow Transmitters,
Paddlewheel, In-Line
A
2-1/2
[63.5]
C
Side View VACSwitch Models
Side View VDCSwitch and
Transmitter Models
Dimensions in [mm]
Model
SF2-104
SF2-101
SF2-114
SF2-111
SF2-124
SF2-121
SF2-134
SF2-131
SF2-204
SF2-214
SF2-224
SF2-234
A
B
C
…
4-1/2 [114.3]
3-1/64 [76.6]
7/8 [22.23]
…
4-1/2 [114.3]
…
4-49/64 [121.05]
3-61/64 [100.41]
1-1/16 [26.99]
…
4-49/64 [121.05]
3-1/64 [76.6]
…
3-61/64 [100.41] …
SPECIFICATIONS
Service: Liquids compatible with
wetted parts.
Wetted Materials: Brass body,
ceramic pin, PPS rotor, Polysulfone
lens and fluoroelastomer O-ring.
Accuracy: Relay output: ±5%; Pulsed
output: ±7% for ranges up to 5.0 GPM,
±15% for ranges up to 60.0 GPM.
Temperature Limits: -20 to 212°F (-29
to 100°C).
Pressure Limit: 200 psig (13.8 bar) @
70°F.
Power Requirements: See table.
D
2-21/64 [59.13]
…
2-21/64 [59.13]
…
2-61/64 [75]
…
2-61/64 [75]
…
13/16 [20.64] 2-21/64 [59.13]
1-1/16 [26.99] 2-61/64 [75]
Output: SPDT: 1 Amp, 24 VDC
resistive; 0.3 Amp, 110 VAC or 4.5
VDC to 24 VDC pulse depending on
model.
Electrical Connections: Relay output
models: 20AWG PVC-jacketed, 24
cable; Pulsed output models: 22AWG
PVC-jacketed, 24 cable.
Process Connections: See table.
Setpoint Differential: 15% max for
relay output models.
Maximum Viscosity: 200 SSU.
Agency Approvals: CE.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
201
202_Layout 1 7/8/14 11:28 AM Page 202
Series
SFI-800
Sight Flow Indicator/Transmitter
Low Cost, Optional Output for Flow Rate and Totalization UV Stabilized
Polycarbonate Model
1-15/32
17/32 [37.30]
[13.50]
SFI-801
SFI-800
2-15/16
[74.61]
[4] 1/4 DIA [6.35]
HOLE ON 2-1/2 DIA [63.5]
BOLT CIRCLE
REMOVAL
1-3/32 CLEARANCE
[27.78] 2-1/4 [57.15]
2-1/32
[51.59]
PANEL MOUNT
[4] 13/64 DIA [5.16]
CUTOUT
HOLE ON 2-1/2 DIA [63.5]
BOLT CIRCLE
2-1/2
[63.50]
2-13/16
[71.44]
SFI with
A-711 Option
1/2 OR
3/4 NPT
2 [50.80]
2-5/16
[58.74]
SFI Model Only
Flow Transmitters,
Paddlewheel, In-Line
FLOW
SFI with A-711 Option
The Series SFI-800 Sight Flow Indicator is a low cost, durable rotor style flow
indicator with optional Hall effect magnetic output packages for remote flow monitoring.
Both SFI-800 and 801 models are constructed of clear plastic enabling 360° viewing of the
spinning rotor for easy flow indication. SFI-800 models are constructed of polysulfone with
excellent chemical compatibility, high pressure and temperature ratings, and all wetted
materials are FDA/NSF ratable for potable water applications. SFI-801 models are
constructed of UV stabilized polycarbonate making them ideal for outdoor applications
(materials do not meet FDA/NSF). The SFI-801 models also feature an easy view bright
red impeller.
Body and Sensors Attached:
To order A-711 attached to flow indicator body add suffix -A711 to the body part
number.
Example: SFI-800-1/2-A711
To order A-712 attached to flow indicator body add suffix -A712 to the body part
number.
Example: SFI-800-1/2-A712
To order A-713 attached to flow indicator body add suffix -A713 to the body part
number.
Example: SFI-800-1/2-A713
Sensor Only
Model
Description
A-711
Pulsed Output
A-712
1 to 10 VDC
A-713
Two Open Collectors
*Sensor only, not attached to the flow indicator body.
BodyOnly
Model
Description
Polysulfone Body
Indicator Only
SFI-800-1/2
Indicator Only
SFI-800-3/4
SFI-800-1/2-LF Indicator Only
Polycarbonate Body
Indicator Only
SFI-801-1/2
Indicator Only
SFI-801-3/4
SFI-801-1/2-LF Indicator Only
202
Range GPM (LPM)
Connection
Female NPT
2-20 (7.6-75.5)
3-35 (11.4-132.5)
0.5-6.5 (1.9-24.6)
1/2
3/4
1/2
2-20 (7.6-75.5)
3-35 (11.4-132.5)
0.5-6.5 (1.9-24.6)
1/2
3/4
1/2
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
SPECIFICATIONS
Service: Compatible fluids.
Wetted Materials
Body: SFI-800: Polysulfone; SFI-801: UV stabilized polycarbonate;
Window: SFI-800: Polysulfone; SFI-801: UV stabilized polycarbonate;
Rotor: SFI-800: White polysulfone; SFI-801: Red UV stabilized PBT;
Rotor Pin: 316 SS;
Thrust washers: 300 Series SS;
O-ring: SFI-800: Fluoroelastomer (NSF grade); SFI-801: Buna-N.
Temperature Limits: SFI-800: -20 to 212°F (-29 to 100°C); SFI-801: -20 to 130°F
(-29 to 55°C).
Pressure Limits: SFI-800: 150 psi (10.34 bar); SFI-801: 125 psi (8.62 bar).
Viscosity Max: 200 SSU.
Weight: SFI-800: 3.35 oz (95 g); SFI-800-A711: 5.0 oz (142 g).
Agency Approvals: CE.
ELECTRICAL SPECIFICATIONS (for A-711 Option Only)
Temperature Limits: -20 to 212°F (-29 to 100°C).
Power Requirements: 8 to 28 VDC.
Output Signal: White lead: 5 VDC; Green lead: 8 to 28 VDC equal to supply
voltage. Pulsed output with frequency rate proportional to flow rate.
Accuracy: ±5% of FS.
Frequency Output Range: 0 to 100 Hz.
Electrical Connections: Black lead - ground; White lead: 5 VDC out pulse; Green
lead: 8 to 28 VDC out pulse; Red lead: 8 to 28 VDC supply.
ELECTRICAL SPECIFICATIONS (for A-712 option only)
Temperature Limits: -20 to 212°F (-29 to 100°C).
Power Requirements: 15 to 28 VDC.
Output Signal: White lead: 1 to 10 VDC.
Accuracy: ±5% of FS.
Electrical Termination: Black lead: Ground; Red lead: 15 to 28 VDC input; White
lead: 1 to 10 VDC output.
ELECTRICAL SPECIFICATIONS ( for A-713 option only)
Temperature Limits: -20 to 212°F (-29 to 100°C).
Power Requirements: 8 to 28 VDC.
Output Signal: White lead: Normally open switch; Green lead: Normally closed
switch. Both open collector, 100 mA max, 28 VDC max.
Electrical Connections: Black lead: Ground; White lead: Normally open; Green
lead: Normally closed; Red lead: 8 to 28 VDC.
203_Layout 1 7/8/14 11:29 AM Page 203
Series
SFI-100T
Sight Flow Indicator/Transmitter
Output for Flow Rate and Totalization
4 [101.60]
2 [50.80]
3
[76.20]
1-3/8
[34.93]
The SFI-100T is a low cost and durable flow transmitter that combines our popular
100 Series Sight Flow indicator with our A-711T output sensor. The SFI-100T sight flow
indicator is constructed of a robust, solid brass body and a tempered glass window. A bright
red impeller is featured for great visual indication of flow through the window. The front
window can be easily unscrewed to clean out the sight flow indicator. Ideal for outdoor
applications, the flow transmitter is weatherproof and unaffected by UV light.
The A-711T output sensor has a VDC output with pulsing for flow totalization and a
proportional frequency change for flow rate. For added versatility there are two output
choices of 5 VDC or a VDC equal to the input power supplied. The output is compatible
with digital rate meters/totalizers and other electronic systems. Great for use in monitoring
water flow especially in chillers.
Range GPM
(LPM)
2-20
(7.6-75.5)
3-35
(11.4-132.5)
…
3/4
ELECTRICAL SPECIFICATIONS
Temperature Limits: -20 to 212°F (-29 to 100°C).
Power Requirements: 8 to 28 VDC.
Output Signal: White lead: 5 VDC. Green lead:8 to 28 VDC equal to supply
voltage. Pulsed output with frequency rate proportional to flow rate.
Accuracy: ±5% of FS.
Frequency Output Range: 0 to 100 Hz.
Electrical Connections: Black lead: Ground; White lead: 5 VDC out pulse; Green
lead: 8 to 28 VDC out pulse; Red lead: 8 to 28 VDC supply.
…
Electronic Totalizing Meter
Flow Transmitters,
Paddlewheel, In-Line
Series
TTM
Connection
Female NPT
1/2
SPECIFICATIONS
Service: Compatible fluids.
Wetted Materials: Body: Brass; Window: Tempered glass; Rotor: Red UV
stabilized PBT; Rotor pin: 316 SS; Thrust washers: 300 series SS; Gasket: Buna-N.
Temperature Limits: -20 to 200°F (-29 to 93°C).
Pressure Limits: 125 psi (8.62 bar).
Viscosity Max: 200 SSU.
Weight: SFI only: 1.5 lb (0.7 kg); with A-711T: 1.8 lb (0.8 kg).
Batch or Cumulative Totals, Easy-to-Read LCD Display, ±5% Accuracy
2-1/2 [63.50]
4-1/8 [104.7]
FOR WATER
ONLY
ELECTRONIC
TOTALIZING METER
2-9/64
[54.37]
DISPLAY
DWYER INSTRUMENTS, INC.
MICHIGAN CITY, INDIANA 46360 USA
1˝ NPT
Measure batch and cumulative totals in liquid transfer systems with the Series TTM
Electronic Totalizing Meter. The meter is designed for any pump, pressure, or gravity feed
system with a 3 to 30 GPM (10 to 100 LPM) flow range. View batch and cumulative totals
on the large 4-digit LCD display. Batch totals can be reset to measure flow during a single
use. The cumulative total will automatically reset to zero when a maximum reading of 9999
is obtained. Models designed for use in water applications are constructed of nylon and
rated to 150 psig (10.3 bar). Aluminum models are calibrated for fuels and rated to 300
psig (20.7 bar).
Model
TTM10
TTM11
TTM20
TTM21
Application
Water*
Water*
Fuels•
Fuels•
Body Material
Nylon
Nylon
Aluminum
Aluminum
Units
Gallons
Liters
Gallons
Liters
*Calibrated for use with water
•Calibrated for use with gasoline, diesel fuel and kerosene
FLOW
Description
Model
SFI-100T-1/2-A711T Brass Indicator
with A-711T Sensor
SFI-100T-3/4-A711T Brass Indicator
withA-711T Sensor
A-711T
Output Sensor Package
3/4 NPT
2 PLCS
SPECIFICATIONS
Service: Compatible liquids.
Flow Range: 3 to 30 GPM (10 to 100
LPM).
Wetted Materials: Bearings: Ceramic;
Shaft: Tungsten carbide; Rotor: Nylon
6-6; Rings:316 SS; Body:TTM10, 11:
Nylon 6-6, TTM20, 21: Aluminum;
Other: TTM20, 21: Ceramic magnet.
Accuracy: ±5%.
Batch Total Maximum: 9999.
Cumulative Total Maximum: 9999.
Temperature Limits: 14 to 130°F (-10
to 54°C).
Pressure Limits: Nylon models: 150
psig (10 bar); Aluminum models: 300
psig (20 bar).
Pressure Drop: 2 psi (0.14 bar) @ 30
GPM (100 LPM).
Maximum Particulate Size: 350
microns.
Display: 4-digit LCD, 5/8 H.
Auto Shut-off: After 1 minute.
Connections: 1 female NPT.
Power Requirements: (2) AAA
alkaline batteries, installed functional,
user replaceable.
Battery Life: Approx. 9000 hours.
Weight: Nylon models: 0.4 lb
(190 g); Aluminum models: 0.7 lb
(340 g).
Agency Approvals: CE.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
203
204_Layout 1 7/14/14 8:10 AM Page 204
Series
DFMT
Digital Paddlewheel Flow Transmitter
Flow and Total Indication, Easy to Read LCD Display, 4 to 20 mA or Pulse Output
2-3/4
[68]
3-7/8˝
[100]
A
3-7/8˝
[100]
Connection
3/8
1/2
3/4
1
1-1/2
2
A
6 152 mm
6 152 mm
6-1/4 158 mm
6-1/4 158 mm
6-5/8 168 mm
7-1/4 184 mm
B
4-3/4 121 mm
5-1/8 130 mm
5-5/8 142 mm
5-1/2 141 mm
6-7/8 175 mm
6-7/8 175 mm
3-5/8
[93]
B
Flow Transmitters,
Paddlewheel, In-Line
FLOW
Scan here
to watch
product video
The Series DFMT Digital Paddlewheel Flow Transmitter provides instantaneous,
as well as totalizing flow monitoring, making it ideal for commercial and industrial systems.
The large backlit LCD display makes navigating through the menu structure simple. The
Series DFMT uses high accuracy paddlewheel technology, offers a user selectable 4 to 20
mA or pulse output, and has a corrosion resistant PVDF sensor giving it a long operation
life. Users can reset the totalizer at any time and set a security password protecting the
setting from unauthorized changes.
Model
DFMT-10A
DFMT-15A
DFMT-20A
DFMT-25A
DFMT-40A
DFMT-50A
204
Range
GPM (m3/h)
0.44 to 7.93 (0.1 to 1.8)
0.88 to 17.61 (0.2 to 4)
1.32 to 26.42 (0.3 to 6)
2.20 to 52.83 (0.5 to 12)
6.61 to 105.67 (1.5 to 24)
8.81 to 176.11 (2 to 40)
Connection
3/8 NPT
1/2 NPT
3/4 NPT
1 NPT
1-1/2 NPT
2 NPT
Weight
lb (kg)
1.06 (0.48)
1.10 (0.5)
1.15 (0.52)
1.23 (0.56)
1.46 (0.66)
1.68 (0.76)
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
SPECIFICATIONS
Service: Compatible clean liquids.
Range: See model chart.
Wetted Materials:
Sensor and Impeller: PVDF;
Shaft: Ceramic;
O-Rings: Fluoroelastomer.
Accuracy: ±1.5% FS.
Repeatability: ±0.5% FS.
Output:
Analog: 4 to 20 mA (750 max. loop resistance);
Pulse: NPNsquare wave output; Frequency: 0 to 2 kHz (adjustable); Pulse width:
0 to 1000 ms (adjustable).
Electrical Connections: Removable screw terminal.
Temperature Limits:
Process: -4 to 194°F (-20 to 90°C);
Ambient: -4 to 149°F(-20 to 65°C).
Pressure Limit: 145 psi (1.0 MPa).
Power Requirements: 12 to 24 VDC.
Power Consumption: 2 W.
Display: 2.38 x 1.25 (60.33 x 31.75 mm) LCD.
Totalizing Display Maximum: 9,999,999,999.
Process Connection: See model chart.
Enclosure Rating: IP65.
Enclosure Material: ABSplastic.
Weight: See model chart.
205_Layout 1 7/21/14 12:18 PM Page 205
Series
DFMT2
Digital Paddlewheel Flow Transmitter
Flow and Total Indication, Easy to Read LCD Display, Remote Indication
4-9/16
[115.89]
1-13/32
[35.72]
3-7/8
[100]
3-7/8 [100]
Connection
3/8 NPT
1/2 NPT
3/4 NPT
1 NPT
1-1/2 NPT
2 NPT
Weight
lb (kg)
1.76 (0.8)
1.81 (0.82)
1.85 (0.84)
1.94 (0.88)
2.20 (1.0)
2.43 (1.1)
Press.
(MPa)
1.0
1.0
1.0
0.8
0.8
0.8
A
4-3/4 (121 mm)
5-1/8 (130 mm)
5-5/8 (142 mm)
5-1/2 (141 mm)
6-7/8 (175 mm)
6-7/8 (175 mm)
SPECIFICATIONS
Service: Compatible clean liquids.
Range: See model chart.
Wetted Materials:
Sensor and Impeller: PVDF;
Shaft: Ceramic;
O-Rings: Fluoroelastomer;
Accuracy: ±1.5% FS.
Repeatability: ±0.5% FS.
Output:
Analog: 4 to 20 mA (750 max. loop resistance);
Pulse: NPN square wave output;
Frequency: 0 to 2 kHz (adjustable);
Pulse width: 0 to 1000 ms (adjustable).
Electrical Connections: Removable screw terminal.
Temperature Limits:
Process: -4 to 194°F (-20 to 90°C);
Ambient: -4 to 149°F(-20 to 65°C).
Pressure Limit: 145 psi (1.0 MPa).
Power Requirements: 12 to 24 VDC.
Power Consumption: 2 W.
Display: 2.38 x 1.25" (60.33 x 31.75 mm) LCD.
Totalizing Display Maximum: 9,999,999,999.
Process Connection: See model chart.
Enclosure Rating: IP65.
Enclosure Material: ABS plastic.
Weight: See model chart.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
Flow Transmitters,
Paddlewheel, In-Line
Range
GPM (m3/h)
0.44 to 7.93 (0.1 to 1.8)
0.88 to 17.61 (0.2 to 4)
1.32 to 26.42 (0.3 to 6)
2.20 to 52.83 (0.5 to 12)
6.61 to 105.67 (1.5 to 24)
8.81 to 176.11 (2 to 40)
Male
NPT
3/8
1/2
3/4
1
1-1/2
2
A
FLOW
The Series DFMT2 Remote Digital Paddlewheel Flow Transmitter is a two piece
digital flow transmitter that provides instantaneous, as well as totalizing flow monitoring.
The two piece design allows the user to separate the control panel from the application,
making it ideal for industrial use in reverse osmosis water purifying systems and any other
applications where space is limited. The large backlit display makes navigating through
the menu structure simple. The Series DFMT2 uses high accuracy, industry proven
paddlewheel technology, offers a user selectable 4 to 20 mA or pulse output, and has a
corrosion resistant PVDF sensor giving it a long operation life. Users can reset the totalizer
at any time and set a security password protecting the system settings from unauthorized
changes.
Model
DFMT2-10A
DFMT2-15A
DFMT2-20A
DFMT2-25A
DFMT2-40A
DFMT2-50A
31/32
[24.61]
Remote Mounting Bracket
(Stainless Steel)
Range
(m3/h)
0.1-2
0.2-4.09
0.3-5.91
0.5-11.36
1.5-23.85
2-40.88
Scan here
to watch
product video
CABLE LENGTH
197˝ [5 m]
4-1/2
[114.30]
205
206_Layout 1 7/15/14 1:20 PM Page 206
Digital Paddlewheel
Series
DPW
1% FS, Flow and Optional Temperature Readings, Programmable Output
2-1/16
[52.37]
2
[50.80]
4-1/2
[114.30]
15/32
[11.99]
1-19/32
[40.39]
CABLE
CONNECTION
DPW
4-13/32
[111.76]
FLOW
DIGITAL LIQUID
FLOW METER
PADDLEWHEEL BEHIND ACRYLIC,
O-RING SEALED, COVER
Flow Transmitters,
Paddlewheel, In-Line
FLOW
The Series DPW Digital Paddlewheel is an economical choice for applications where
liquid flow measurement is desired. The user-friendly interface allows for easy
manipulation of the paddlewheel’s many different programmable features including
high/low flow and temperature alarms, totalizer and flow pulse outputs. Rugged, chemical
resistant lower block material ensures high reliability and longevity for use in harsh
environments. Supports up to 29 Engineering Units, including user defined ones, making
the DPW suitable for any application. Flow meter parameters and functions can be
programmed remotely via the RS-232/RS-485 interface or locally via optional LCD/ key
pad.
FEATURES
€ Jewel bearings allow for very low minimum flow rates.
€ Multiparameter: flow and optional temperature measurements.
€ Polypropylene and chemically resistant PVDF models.
€ Supports up to 29 engineering units.
€ Two programmable totalizers and flow pulse output.
€ Programmable high/low flow and optional temperature alarms with preset action
delay interval.
€ Two sets of user-programmable optically isolated outputs.
€ User-selectable (via jumpers) analog 0 to 5 VDC or 4 to 20 mA flow and optional
temperature outputs.
€ RS-232 or RS-485 Digital Interface with multi-drop capability of up to 256 units
(RS- 485 option).
€ Local key pad and 2x16 characters LCD display with adjustable back light
(optional).
€ Enclosure weather tight to IP65 standards.
€ Free communication software with temperature and flow data log-in capability.
Example
DPW 05 P
Series
DPW
05
Orifice Size
10
(Max. Flow Range)
17
35
P
Material Lower
T
Block
Seals
Display/Keypad
E
L
N
A 2
E
T
B
V
N
L
RTD Option
N
R
Output Signal
Digital Interface
A
B
2
5
206
SPECIFICATIONS
Service: Liquids compatible with wetted materials.
Wetted Materials:
DPW-XP: Polypropylene; Seals (see options in model chart), PVDF and nickel
tungsten carbide paddlewheel, acrylic lid; Bearings: PVDF sapphire;
DPW-XT: PVDF; Seals (see options in model chart), PVDF and zirconia ceramic
paddlewheel, PVDF lid; Bearings: PVDF sapphire.
Accuracy: ±1% FS.
Repeatability: ±0.25% FS.
Response Time: 1 second above 10% of FS, 2 seconds below 10% of FS.
Output Signal: Linear 0 to 5 VDC (3000 min. load impedance); 4 to 20 mA (500
max. loop resistance) for flow and temperature option; Pulse output: 3.3 VDC, 3K
min. load impedance.
Electrical Connection: 12 pin cable.
Digital Interface: RS-232; RS-485.
Temperature Limits: 14 to 140°F (-10 to 60°C).
Pressure Limit: 10 bar (150 psig).
Power Requirements: 11 to 26 VDC.
Display: 2 row, 16 character LCD with backlight (optional).
Process Connections:
DPW-05: 3/8 FNPT;
DPW-10: 1/2 FNPT;
DPW-17: 3/4 FNPT;
DPW-35: 1 FNPT.
Enclosure Rating: IP65.
Weight: 1.60 lb (0.73 kg).
DPW-05-P-E-L-N-A-2
Flow Transmitter
0.04 to 5 gal/min (0.15 to 18.9 L/min)
0.08 to 10 gal/min (0.3 to 37.6 L/min)
0.15 to 17 gal/min (0.6 to 64.4 L/min)
0.35 to 35 gal/min (1.3 to 132.5 L/min)
Polypropylene
PVDF
EPDM
PTFE
Buna-N
Fluoroelastomer
No Display/No Keypad
LCD/Keypad
No RTD
RTD
0 to 5 VDC
4 to 20 mA
RS-232
RS-485
ACCESSORY
A-CBL12, 12 Pin Stripped End Cable, 10 ft
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
2X PROCESS CONNECTIONS
207_Layout 1 7/8/14 11:31 AM Page 207
Series
MFS
Magnetic Inductive Flow Sensor
No Moving Parts, Frequency and 4 to 20 mA Output, Maintenance-Free
1-1/8
[28.96]
1-1/32
[25.91]
19/32
[15.27]
1-5/32
[29.64]
1˝ NPT
LED
1-7/32
[31.04]
15/32
[11.99]
31/32
[24.89]
LED
15/32
[11.99]
3-1/32
[77.22]
1-3/8
[34.80]
3-7/32 [81.53]
Ø-11/16
[17.60]
2-1/4
[56.90]
MFS-31 &MFS-32
FEATURES
€ No moving parts
€ No mechanical wear
€ Maintenance-free
Model
MFS-11
MFS-21
MFS-31
MFS-12
MFS-22
MFS-32
Range GPM (LPM)
0.25 to 5.3 (1 to 20)
0.5 to 10.5 (2 to 40)
2.5 to 52.8 (10 to 200)
0.25 to 5.3 (1 to 20)
0.5 to 10.5 (2 to 40)
2.5 to 52.8 (10 to 200)
Minimum Output
Signal GPM (LPM)
0.13 (0.5)
0.25 (1)
1.3 (5)
0.13 (0.5)
0.25 (1)
1.3 (5)
Process
Connection
1/2 NPT
1/2 NPT
1 NPT
1/2 NPT
1/2 NPT
1 NPT
3/8
[9.91]
MFS-11 &MFS-12
MFS-21 & MFS-22
SPECIFICATIONS
Service: Water and other conductive liquids.
Wetted Materials:
Electrodes: 316 TI SS;
Process Connections: 316 TI SS;
Measuring Pipe: PEEK-GF30;
Gasket: EPDM.
Accuracy: ±2% of reading.
Repeatability: 1%.
Temperature Limits:
Process: 32 to 194°F (0 to 90°C);
Ambient: 41 to 158°F (5 to 70°C).
Pressure Limits: 232 psi (16 bar).
Response Time: < 500 ms.
Power Requirements: 24 VDC ±10%.
Output: Frequency: Square-wave, NPN; Analog: 4 to 20 mA.
Loop Resistance: 250 .
Current Consumption: Max 80 mA.
Minimum Conductivity of Medium: 50 S/cm.
Flow Indication: LED green, flow proportional blinking.
Enclosure Rating: NEMA 4 (IP65).
Process Connection: See model chart.
Electrical Connection: Plug connector M12x1.
Weight:
MFS-1X: 1.5 lb (0.68 kg);
MFS-2X: 1.7 lb (0.77 kg);
MFS-3X: 1.9 lb (0.87 kg).
Agency Approval: CE.
Flow Transmitters,
Electromagnetic, In-Line
PRINCIPLESOFOPERATION
The measuring pipe is in a magnetic field. If an electrically conductive medium with
a certain flow passes through the pipe, it passes at a right-angle to the magnetic
field, creating a voltage which is proportional to the average flow velocity and picked
up by two electrodes within the MFS. A frequency output signal is obtained that is
proportional to the flow (analog output option available).
3-7/32 [81.53]
5-1/16 [128.81]
FLOW
Series MFS Magnetic Inductive Flow Sensor is a compact, low cost alternative to
paddle wheel sensors. Unlike sensors with moving parts, the MFS can be applied in
applications dealing with contaminated media. This series provides a reliable measuring
technique, an obstruction free pipe cross-section, as well as a quick response time, making
this series ideal for interference free operation. Any change in temperature, density,
viscosity, concentration or electrical conductivity of the liquid, does not affect the output
signal of this Magnetic Inductive Flow Sensor. This, in addition to its long-life cycle, makes
this series perfect for accurate reversible gauging of volume flow of conductive liquids in
closed piping.
1/2˝ NPT
2-1/4
[56.90]
1-7/32
[30.99]
3-1/32
[77.22]
5-19/32 [141.99]
9/16
[13.95]
Output
Frequency
Frequency
Frequency
Frequency & Analog
Frequency & Analog
Frequency & Analog
ACCESSORIES
MFS-C3, 4 Pin Cable Socket M12x1 Connect, 9.8 ft (3 m)
MFS-C5, 4 Pin Cable Socket M12x1 Connect, 16.4 ft (5 m)
MFS-C10, 4 Pin Cable Socket M12x1 Connect, 32.8 ft (10 m)
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
207
208_Layout 1 7/8/14 11:32 AM Page 208
Series
MFS2
Magnetic Inductive Flow Sensor
Lower Cost PVDF Design, Frequency Output, ±1% Accuracy, Maintenance-Free
4-PIN PLUG
CONNECTOR
1-3/16
[30.02]
17/64
[6.76]
M12 X 1
2 x L2
1-9/32
[32.52]
2-23/64
[60.05]
2-13/32
[61.05]
2 X D1
2 X D2
(HOLE DIA.)
MFS2-6
1-9/64
[29.02]
17/64
[6.76]
2 x L2
L1
Flow Transmitters,
Electromagnetic, In-Line
FLOW
MFS2-1/5
The Series MFS2 Magnetic Inductive Flow Sensor is a compact, lower cost plastic
alternative to the Series MFS. Unlike sensors with moving parts, the MFS2 can be used
in applications dealing with contaminated media. This series provides a reliable measuring
technique, an obstruction free pipe cross-section, as well as a quick response time, making
this series ideal for interference free operation. Any change in temperature, density,
viscosity, concentration or electrical conductivity of the liquid, does not affect the output
signal of this Magnetic Inductive Flow Sensor. This, in addition to its longlife cycle and
PVDF process connection, makes this series perfect for accurate reversible gauging of
volume flow of conductive liquids in closed piping.
Principles of Operation
The measuring pipe is in a magnetic field. If an electrically conductive medium with
a certain flow passes through the pipe, it passes at a right-angle to the magnetic
field, creating a voltage that is proportional to the average flow velocity and picked
up by two electrodes within the MFS2. A frequency output signal is obtained that is
proportional to the flow (analog output option available).
FEATURES
€ No moving parts
€ No mechanical wear
€ Maintenance-free
Model
MFS2-1
MFS2-2
MFS2-3
MFS2-4
MFS2-5
MFS2-6
Range GPM(LPM)
0.07 to 1.3 (0.25 to 5)
0.26 to 5.3 (1.0 to 20)
0.66 to 13.2 (2.5 to 50)
1.3 to 26.4 (5.0 to 100)
2.6 to 52.8 (10 to 200)
3.3 to 66.0 (12.5 to 250)
Process Connection
1/2 male NPT
1/2 male NPT
3/4 male NPT
1 male NPT
1 male NPT
1-1/4 male NPT
ACCESSORIES
MFS-C3, 4-Pin Cable Socket M12x1 Connect, 9.8 ft (3 m)
MFS-C5, 4-Pin Cable Socket M12x1 Connect, 16.4 ft (5 m)
MFS-C10, 4-Pin Cable Socket M12x1 Connect, 32.8 ft (10 m)
208
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
L1
4
4
4.02
4.41
4.41
4.81
L2
0.86
0.86
0.86
1.04
1.04
1.13
1-3/4
[44.53]
M12 X 1
2 X D1
45/64
[18.01]
Model
MFS2-1
MFS2-2
MFS2-3
MFS2-4
MFS2-5
MFS2-6
2 X D2
(HOLE DIA.)
SPECIFICATIONS
Service: Compatible, non-coating, conductive liquids.
Range: See model chart.
Wetted Materials:
Grounding Rings and Electrodes: 316 SS;
Process Connections: PVDF;
O-rings: EPDM.
Accuracy: ±1% of reading.
Repeatability: 1%.
Temperature Limits:
Process: 14 to 140°F (-10 to 60°C);
Ambient: 41 to 140°F (5 to 60°C).
Pressure Limits:
145 psi (10 bar) @ 68°F (20°C);
116 psi (8 bar) @ 104°F (40°C);
87 psi (6 bar) @ 140°F (60°C).
Response Time: < 100 ms.
Power Requirements: 24 VDC ±15%.
Power Consumption: 0.6 W.
Output: Frequency: Square-wave, NPN or PNP.
Flow Indication: LED green, flow proportional blinking.
Enclosure Rating: IP65.
Enclosure Material: ABS plastic.
Process Connection: See model chart.
Electrical Connection: Plug connector M12x1.
Conductivity: > 20 µS/cm min.
Weight:
MFS2-1, -2, -3, -4, -5: 8 oz (226.8 g);
MFS2-6: 1 lb (0.45 kg).
Agency Approvals: CE.
D1
1/2-14 NPT
1/2-14 NPT
3/4-14 NPT
1-11.5 NPT
1-11.5 NPT
1-1/4-11.5 NPT
D2
0.31
0.31
0.55
0.71
0.71
0.98
209_Layout 1 7/8/14 11:32 AM Page 209
Series
LOFM
Low-Flow Electromagnetic Flow Sensor
HDPE Plastic Body, Pulse, Frequency and Analog Output
3-1/2
[88.90]
2-51/64
[71.12]
8-PIN CIRCULAR
BULKHEAD CONNECTOR
FEATURES
€ Low cut off flow rate
€ No metal parts
€ No moving parts
€ No straight pipe requirements
4-13/64
[106.68]
2-3/32
[53.34]
LOFM-1-44C-1E-1TN-1FT
Low-Flow Magmeter (Comes standard with
FlareTek® fittings, NPT adapters available)
1
3/4
Size
2
3/8
44C
3/4 PVC NPT Adapter (LOFM-1 only)*
NPTAdapters
44F
3/4 PVDF NPT Adapter (LOFM-1 only)*
(Optional Replace
42C
1/2 PVCNPT Adapter (LOFM-1 only)*
FlareTek® Fittings)
42F
1/2 PVDFNPT Adapter (LOFM-1 only)*
88C
3/8 PVC NPT Adapter (LOFM-2 only)*
88F
3/8 PVDFNPT Adapter (LOFM-2 only)*
84C
1/4 PVC NPT Adapter (LOFM-2 only)*
84F
1/4'' PVDF NPT Adapter (LOFM-2 only)*
000
No MNPT Adapter
1E
3/4 EPDM (LOFM-1 only)*
O-Ring
1F
3/4 Fluoroelastomer (LOFM-1 only)*
(Only required
2E
3/8 EPDM (LOFM-2 only)*
with NPTadapters)
2F
3/8 Fluoroelastomer (LOFM-2 only)*
00
No O-ring
1TN
3/4 FlareTek ® Tubing Nut (LOFM-1 only)
FlareTek® Tubing Nut
3/8 FlareTek ® Tubing Nut (LOFM-2 only)
2TN
(Only required with
No FlareTex® Tubing Nut
000
FlareTek® fittings)
FlareTek®, Flare Tool, 3/8 Fitting (LOFM-1 only)
1FT
Flare Tool (Only
FlareTek®, Flare Tool, 3/8 Fitting (LOFM-2 only)
2FT
required with
No FlareTek®, Flare Tool
000
FlareTek® fittings)
*The prices for the NPT adapters and O-rings are for the two required.
Example
Construction
LOFM 1 44C 1E 1TN 1FT
LOFM
Flaretek® is a registered trademark of Entegris, Inc.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
209
Flow Transmitters,
Electromagnetic, In-Line
SPECIFICATIONS
Service: Compatible clean or dirty non-coating, conductive liquids.
Range: LOFM-1: 0.2 to 20 GPM (0.01 to 1.3 l/s); LOFM-2: 0.03 to 3 GPM (0.002
to 0.2 l/s).
Wetted Materials:
Body: PVDF; Electrodes: PVDF carbon-fiber filled; Ground: PVDF carbon-fiber
filled; Fittings: PVDF; Adapters: PVC or PVDF; O-rings: EPDM or Fluoroelastomer
(for NPT fitting only).
Accuracy:
LOFM-1: +1% of reading, +0.005 GPM; LOFM-2: +1% of reading, +0.002 GPM.
Temperature Limits: Process: 32 to 200°F (0 to 93°C); Ambient: 0 to 130°F (-18
to 54°C).
Pressure Limit: 150 psi (10.3 bar).
Process Connections: Flaretek® fittings standard in 3/4 or 3/8 flowbody (NPT
threaded adapters also available).
Output: Current sinking, square wave pulse, opto-isolated, 30 VDC @ 5 mA max.
and 4 to 20 mA;
LOFM-1: 1892 pulses/gal (500 pulses/L);
LOFM-2: 3785 pulses/gal (1000 pulses/L).
Power Requirements: 10 to 15 VDC, 150 mA (linear power supply
recommended).
Conductivity: > 20 microSiemens.
Enclosure Material: HDPE with glass fiber.
Enclosure Rating: NEMA 4X (IP66).
Weight: 2.20 lb (1.00 kg).
FLOW
The Series LOFM Low-Flow Magmeter is a liquid electromagnetic flow sensor that
uses the conductivity of fluids to measure flow. Liquid flow through its magnetic field
produces a voltage which is measured and translated into a pulse output signal. The LOFM
can be combined with the Series RTI for flow rate and total display. This meter comes with
a variety of factory-installed adapters and O-rings. The LOFM comes in either 3/4˝ or 3/8˝
pipe.
The Series LOFM can accurately measure flow rates as low as 0.03 gallons per minute.
The meter is housed in a splash proof HDPE plastic, making it good for chemical injection
applications. With no metal parts, the LOFM is corrosion-resistant and compatible with a
wide range of chemicals. With no moving parts, the meter can handle dirty water
applications where moving parts might cause jamming or clogging. The LOFM comes
standard with Flaretek® fittings, but NPT adapters are available.
FLARETEK ® FITTINGS
ARE STANDARD
210_Layout 1 7/8/14 11:33 AM Page 210
Series
FLMG
Flanged Electromagnetic Flow Sensor
No Moving Parts, Minimal Straight Pipe Requirement, Unobstructed Flow
3-61/64
[100.46]
B
C
A
Flow Transmitters,
Electromagnetic, In-Line
FLOW
Dimension
FLMG-04-XX-XXX-X
FLMG-06-XX-XXX-X
FLMG-08-XX-XXX-X
FLMG-10-XX-XXX-X
The Series FLMG Flanged Electromagnetic FlowSensor is a flanged
electromagnetic flowmeter designed for use in 4 to 10” pipes in municipal or industrial
water and wastewater applications. The FLMG has no moving parts and requires less
frequent maintenance in applications where debris or sand is in the flow. It’s specially
designed with electrodes that discourage fouling and requires little space between the
meter and a pipe elbow. Rate and total indication are standard for both models. The
included 20-foot power cable provides pulse output for use with a variety of displays and
controllers for remote reading, data logging, pulse-to-analog conversion, and telemetry
applications. This series also features backup battery power to provide auxiliary power
during power failures.
ACCESSORIES
€ Series BAT, Blind Analog Transmitter, converts pulse output to 4 to 20 mA analog
output. Unit is loop powered, fits on the enclosure of the meter, and is field
spannable.
€ Series RTI, Rate Total Indicator, converts pulse output to 4 to 20mA analog output
with local flow rate and totalization display. Unit is loop powered, fits on the
enclosure of the meter, and provides a high/low flow alarm.
€ Series PWD, Pulse Divider, for use with pacing electronic metering pumps. Unit
divides the input frequency to any number from 1 to 9999 with the use of rotary
switches to suit a number of metering pump inputs.
FLMG 04 GM GAL H 15
FLMG
04
06
08
10
GM
Rate/
LM
Measurement
LS
FM
MH
GD
LD
GAL
Total
GLX
Measurement
LIT
LTX
MLT
CMT
CMX
CFT
CFX
H
Pulse Rate
1
2
4
15
Options
30
45
60
DL
Example
Series
Power/Size
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
B
9 (229 mm)
11 (279 mm)
13.5 (330 mm)
16 (406 mm)
SPECIFICATIONS
Service: Compatible non-coating
conductive liquids.
Range: See chart.
Wetted Materials:
Liner: Dual durometer rubber;
Electrodes: 316 SS.
Accuracy: ±1% (10% to 100% of FS
max. flow), ±2% (min. to 10% FS).
Temperature Limits: Process: 10 to
130°F (-12 to 54°C); Ambient: -40 to
158°F (-40 to 70°C).
Pressure Limits: 150 psi (10.3 bar).
MountingOrientation: Horizontal or
vertical.
Process Connection: 150# drilling
ANSI flange.
Display: Rate: 5 digits; Total: 8 digits
LCD.
Output: Current sinking square wave
pulse, opto-isolated.
FLMG-04-GM-GAL-H-15
Flanged Electromagnetic Flow Sensor
DCPowered 4 Pipe
DCPowered 6 Pipe
DCPowered 8 Pipe
DCPowered 10 Pipe
Gallon/Minute
Liter/Minute
Liter/Second
Cubic Foot/Minute
Cubic Meter/Day
Million Gallon/Day
Mega Liter/Day
Gallon
Gallon x 1000
Liter
Liter x 1000
Mega Liter
Cubic Meter
Cubic Meter x 1000
Cubic Feet
Cubic Feet x 1000
High Frequency* Required with use with Series BAT
10 Units*/Pulse
100 Units*/Pulse
1000 Units*/Pulse
Factory-Installed Power/Output Cable, 15 m (50 ft)**
Factory-Installed Power/Output Cable, 30 m (100 ft)**
Factory-Installed Power/Output Cable, 45 m (150 ft)**
Factory-Installed Power/Output Cable, 60 m (200 ft)**
Internal Data Logger
4
6
8
10
Gal/Min Liter/Sec Gal/Min Liter/Sec Gal/Min Liter/Sec Gal/Min Liter/Sec
Minimum 12
32
60
95
.75
2
3.8
6
Maximum 500
1200
2200
3500
31.5
75.7
138.8
220.8
210
A
Ø 3.12 (Ø 79 mm)
Ø 5.05 (Ø 128 mm)
Ø 6.44 (Ø 164 mm)
Ø 8.61 (Ø 219 mm)
D
C
7 (178 mm)
8.1 (206 mm)
9.1 (231 mm)
10.1 (257 mm)
D
10.24 (260 mm)
12.27 (312 mm)
14.24 (362 mm)
18.18 (462 mm)
Power Requirements: 7 to 32 VDC @
30 mA and (2) 3.6 V AA lithium metal
batteries, installed and functional, user
replaceable for backup power.
Battery Life: 2 months with power
failure; 10 years with power.
Electrical Connection: #22 AWG, 3
conductor length (18´(5.5 m )
(2000´max.).
Conductivity: 20 microSiemens.
Empty Pipe Detection:
Hardware/software, conductivity-based.
Enclosure Materials:
Body: Epoxy-coated welded steel;
Housing: Powder-coated diecast
aluminum;
Enclosure Rating: NEMA 4X (IP66).
Weight:
4: 32 lb (14515 g);
6: 47 lb (21319 g);
8: 69 lb (31298 g);
10: 125 lb (56699 g).
*Units: Gal or Liter depending on (rate/total unit) selection
rate measurement
**20-foot (6 m) cable standard
211_Layout 1 7/21/14 12:25 PM Page 211
Series
IEFS
Insertion Electromagnetic Flow Sensor
No Moving Parts, Hot-Tap Option, 3 to 48˝ Field Adjustable Insertion
4
[101.52]
PHONE
219-879-8000
FAX
219-872-9057
WEB
WWW.DWYER-INST.COM
2-3/4
[69.70]
4
[101.42]
MADE IN XXXXXX
2-7/8
[73.06]
1/2˝ CABLE
GLAND
Scan here
to watch
product video
Hot-Tap Option
The Series IEFS Insertion Electromagnetic Flow Sensor comes in brass or stainless steel
allowing it to handle a wide range of pressures and temperatures, as well as a variety of available saddle
fittings, Series SDF, to fit pipe sizes 3 to 24˝. The IEFS-1XX has an isolation valve which allows hottap installation. Additional options for this flow meter include adapter fittings and a reverse flow output.
The Series IEFS is great for “dirty” water applications or any application where moving parts may be
an issue.
ACCESSORIES
€ Series BAT, Blind Analog Transmitter, converts pulse output to 4 to 20 mA analog output. Unit
is loop powered, fits on the enclosure of the meter, and is field spannable.
€ Series RTI, Rate Total Indicator, converts pulse output to 4 to 20 mA analog output with local
flow rate and totalization display. Unit is loop powered, can fit on the enclosure of the meter,
and provides a high/low flow alarm.
€ Series PWD, Pulse Divider, for use with pacing electronic metering pumps. Unit divides the
input frequency to any number from 1 to 9999 with the use of rotary switches to suit a number
of metering pump inputs.
Example IEFS 0SB BAF IEFS-DSB-BAT
Series IEFS
Insertion Electromagnetic Flow Sensor
Size/
Size
Hot-Tap
Material
Material
0SB
3 to 10
No Hot-Tap
Brass
0SS
3 to 10
No Hot-Tap
SS
0LB
10 to 48
No Hot-Tap
Brass
0LS
10 to 48
No Hot-Tap
SS
1SB
3 to 10
Hot-Tap
Brass
1SS
3 to 10
Hot-Tap
SS*
1LB
10 to 48
Hot-Tap
Brass
1LS
10 to 48
Hot-Tap
SS*
BAF 2 Brass Adapter Fittings (IEFS-0XX only)
Options
SAF 2 SS Adapter Fittings (IEFS-0XX only)
SVA 316 SS Valve Assembly (IEFS-1XX only)
NVA No Valve Assembly (deduct price) (IEFS-1XX only)
RFO Reverse Flow Output
BPT 1-1/2 Brass BPT Adapter (2 piece) (IEFS-0XX only)
SPT 1-1/2 SS BPT Adapter (2 piece) (IEFS-0XX only)
IMM Immersible (Urethane potted electrical components)
LOP Low Power (12 to 25 VDC @ 40 mA)
EXT 12 Extension (IEFS-XLX only)
*SS is stem and fitting. For SS valve order SVAoption.
Stocked
Model
Description
IEFS-0SB Adjustable Insertion Electromagnetic Flow Sensor
IEFS-0SS Adjustable Insertion Electromagnetic Flow Sensor
Pipe
Size
3 to 10
3 to 10
Material
Brass
SS
Hot-Tap Option
(Shown installed on pipe)
Hastelloy® is a registered trademark of Hanes International
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
211
Flow Transmitters, Electromagnetic,
Adjustable Insertion
APPLICATIONS
€ Conductive liquids
€ Municipal
€ Industrial
€ Irrigation
FLOW
PRINCIPLEOFOPERATION
The IEFS is a liquid flow meter that uses a magnetic field to measure flow. As conductive fluids
flow through the magnetic field, a voltage is generated which is measured and translated into
a pulse frequency output signal. This signal can then be used with the Series BAT to produce
a 4 to 20 mA analog signal, or the Series RTI to display rate and total.
SPECIFICATIONS
Service: Compatible clean or dirty non-coating, conductive liquids.
Range: 0.28 to 20 ft/s (0.08 to 6.09 m/s).
Wetted Materials:
Body Shaft/Fitting: 316 SS or brass;
Electrodes: Hastelloy®;
Electrode Cap: PVDF;
Valve Assembly: (IEFS-1XX) Bronze (SS optional) with bronze ball valve;
O-ring: EPDM.
Accuracy: ±1% FS.
Temperature Limits:
Process: 32 to 200°F (0 to 93°C);
Ambient: 0 to 160°F (-17 to 72°C).
Process Connection:
IEFS-0XX: 1-1/2 male NPT ;
IEFS-1XX: 2 male NPT.
Pressure Limit: 200 psi (13.8 bar).
Output: Current sinking, square wave pulse, opto-isolated, 550 Hz @ 20
ft/s, 30 VDC @ 6 mA max.
Power Requirements: 12 to 25 VDC @ 250 mA; Low Power: 12 to 25
VDC @ 40 mA.
Electrical Connection: Terminal block.
Conductivity: 20 microSiemens/cm.
Enclosure Material: Housing: Die-cast powder-coated aluminum.
Enclosure Rating: NEMA 4X (IP66).
Weight:
IEFS-0SX: 6 lb (2721 g);
IEFS-0LB: 12 lb (5443 g);
IEFS-1XX: 15 lb (6804 g).
212_Layout 1 7/8/14 11:34 AM Page 212
Series
EFS2
Insertion Electromagnetic Flow Sensor
No Moving Parts, Durable, Easy Installation & Maintenance
3-9/32
[83.45]
SENSOR BODY
[STAINLESS STEEL, BRASS OR PVC]
3/32˝ THICK
GASKET
MODEL: EFS2-XX-XXX
SN: XXXXXXXXXX
Ø1-37/64
[40.13]
O-RING
ELECTRODES
Scan here
to watch
product video
Flow Transmitters, Electromagnetic,
Fixed Insertion
FLOW
The Series EFS2 Insertion Electromagnetic Flow Sensor is designed for pipe sizes
from 1 to 12˝ and comes in three different materials (stainless steel, brass and PVC).
There are a variety of custom fittings to choose from to ensure accurate fitting in the pipe.
The Series EFS2 is useful for any applications where moving parts would be a problem,
such as dirty liquids. It can handle applications where there are rapid changes in viscosity
and flow. Other applications include small pipes and chemical metering pumps.
PRINCIPLEOFOPERATION
The EFS2 is a liquid flow meter that uses the conductivity of fluids to measure flow
rate. Liquid flow through its magnetic field produces a voltage that is measured and
translated into an output signal. It has a pulse frequency output which can be used
with the Series RTI to indicate flow rate and total, as well as the Series BAT signal
converter which provides an analog signal.
APPLICATIONS
€ Industrial process
€ Chemical metering pumps
€ Fertigation
ACCESSORIES
€ Series BAT, Blind Analog Transmitter, converts pulse output to 4 to 20 mA analog
output. Unit is loop powered, fits on the enclosure of the meter, and is fields
spannable.
€ Series RTI, Rate Total Indicator, converts pulse output to 4 to 20 mA analog output
with local flow rate and totalization display. Unit is loop powered, fits on the
enclosure of the meter, and provides a high/low flow alarm.
€ Series PWD, Pulse Divider, for use with pacing electronic metering pumps. Unit
divides the input frequency to any number from 1 to 9999 with the use of rotary
switches to suit a number of metering pump inputs.
Example EFS2 1P RFO
EFS2
Series
1P
Size/
1B
Material
1S
2P
2B
2S
3P
3B
3S
RFO
Options
IMM
FOR
LOP
4-15/16 [125.30]
4
[101.42]
2-3/4
[69.90]
SPECIFICATIONS
Service: Compatible clean or dirty non-coating, conductive liquids.
Range: 0.28 to 20 ft/s (0.08 to 6.09 m/s).
Wetted Materials:
Sensor: 316 SS, brass or PVC;
Electrodes: Hastelloy®, metal;
Electrode Cap: PVDF;
O-ring: EPDM (fluoroelastomer optional).
Accuracy: ±1% FS.
Temperature Limits:
Process: Brass/SS: 32 to 200°F (0 to
93°C); PVC: 32 to 130°F (0 to 55°C);
Ambient: 0 to 160°F (-17 to 72°C).
Pressure Limits:
Brass/SS: 200 psi (13.8 bar);
PVC: 150 psi (10 bar).
Process Connection: See page reference below.
Output: Current sinking, square wave pulse, opto-isolated, 550 Hz @ 20 ft/s.
Power Requirements: 12 to 25 VDC @ 250 mA; (12 to 25 VDC @ 40 mA (max.
250 mA) - LOP option).
Electrical Connection: Terminal block.
Conductivity: 20 microSiemens/cm.
Enclosure Material: Housing: Die-cast powder-coated aluminum.
Enclosure Rating: NEMA 4X (IP66).
Weight: 3 lb (1361 g).
EFS2-1P-RFO
Insertion Electromagnetic Flow Sensor
1 to 3 Pipe, PVC
1 to 3 Pipe, Brass
1 to 3 Pipe, 316 SS
4 to 10 Pipe, PVC
4 to 10 Pipe, Brass
4 to 10 Pipe, 316 SS
12 Pipe, PVC
12 Pipe, Brass
12 Pipe, 316 SS
Reverse Flow Output
Immersible (*Urethane Potted Electrical Connection)
Fluoroelastomer O-ring
Low Power (12 to 25 VDC @ 40 mA) (max 250 mA)
Note: Need to purchase with Series EFF fittings for proper installation.
Stocked
Model
EFS2-1P
EFS2-1B
EFS2-1S
EFS2-2B
EFS2-3B
212
Description
Insertion Electromagnetic Flow Sensor
Insertion Electromagnetic Flow Sensor
Insertion Electromagnetic Flow Sensor
Insertion Electromagnetic Flow Sensor
Insertion Electromagnetic Flow Sensor
Pipe
Size
1 to 3
1 to 3
1 to 3
4 to 10
12
Material
PVC
Brass
SS
Brass
Brass
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
Hastelloy® is a registered trademark of Hanes International
Process Connection: See page 213 (Series EFF)
213_Layout 1 7/21/14 12:34 PM Page 213
Series
EFF
Fittings and Tees
Saddles, Tees & Weld/Braze Fittings for Series EFS2
1-5/8
[41.15]
2-9/16
[65.11]
EFF-S-BXX
EFF-S-PXX
EFF-T-SFT-SS
EFF-S-DXX
The Series EFF Fittings and Tees are used with the Series EFS2 Insertion
Electromagnetic Flow Sensors. The Series EFF allows for sensor insertion in a wide range
of pipe sizes. Multiple end connections are available to allow for easy installation in many
applications. Series EFF is available in bronze, 304 stainless steel, 316 stainless steel, and
PVC, further expanding application prospects.
FLOW
Tee Fitting Description
Bronze/FemaleThread
Bronze/Female Sweat (For Copper Tubing)
PVC/MaleStubEnd
Carbon Steel/Female Thread
304 SS/Female Thread
All 316 SS Option
Saddle Fitting Description
Ductile Iron
PVC(See Note 2)
Bronze
Installed on 16 Long Pipe Stub Option (PVCOnly)
Weld/Braze Fitting Description
Bronze
Carbon Steel
316 SS
Flow Transmitters, Electromagnetic,
Fixed Insertion
Model
EFF-T-BFT
EFF-T-BFS
EFF-T-PME
EFF-T-CFT
EFF-T-SFT
-SS
Model
EFF-S-DXX
EFF-S-PXX
EFF-S-BXX
-LPS
Model
EFF-W-BXX
EFF-W-CXX
EFF-W-SXX
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials: See model chart.
Temperature Limits: Flow meter dependent.
Pressure Limits: Flow meter dependent.
Connections: 1/2 to 12.
Weight: Consult factory.
Example: EFF-T-CFT-0100-SS
To order an all 316 SS female thread 1 tee for Series EFS2-1XX Electromagnetic Flow Sensor.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
213
214_Layout 1 7/8/14 11:35 AM Page 214
Series
UXF3
Ultrasonic Flowmeter Converter
Excellent Performance and Easy Operation
5-19/32 [142.00]
2-61/64
[75.00]
2-53/64
[72.00]
3/32
[2.50]
25/64
[10.00]
LCD DISPLAY
7-7/8
[200.00] 6-11/16
[170.00]
LED
2-23/32
[69.24]
9-11/64
[233.00]
CABLE GLAND
WITH 3/8˝
OPENING
CABLE GLAND
WITH 1/4˝
OPENING
Flow Transmitters,
Ultrasonic
FLOW
EARTH TERMINAL
The Series UXF3 Ultrasonic Flowmeter Converters are paired with Series SX1 or
SX2 sensors in order to utilize the transit-time measure method. Thanks to microprocessorbased electronics, the flowmeter can easily be configured from the front keypad to specific
applications. The flowmeter is suitable for liquid flow measurements for pipes from 1/2
inch to 19.5 feet diameter. The accuracy of this flowmeter falls within ± 1% of the flow rate.
The UXF3 also provides excellent resistance against aerated flow such as sludge, raw
sewage, and bubble contained flow. The multilingual display supports a variety of language
choices. The combination of the easy to read LCD screen and front panel buttons along
with the variety of language selections makes this flowmeter very user friendly. This
flowmeter incorporates the latest electronics and high-speed digital signal processing
technologies (32 bit MPU), realizing high performance and easy operation. See bulletin F107-UXF3 for more details.
FEATURES
€ High accuracy
€ Excellent resistance against aerated flow
€ Quick response with high-speed microprocessor
€ Multilingual display (English, Japanese, German, French, and Spanish)
€ Large type graphic LCD
€ Front keypad
Model
UXF3-A0
UXF3-B0
UXF3-A1
UXF3-B1
Power
Supply
100-240 VAC 50/60Hz
20-30 VDC
100-240 VAC 50/60Hz
20-30 VDC
Serial
Communications
N/A
N/A
RS485
RS485
OPTION
For NISTtraceable calibration certificate, use order code NISTCAL-FU.
214
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
SPECIFICATIONS
Service: Liquid flow through which ultrasonic signal can be transmitted (water, sea
water, oil, and fluid of unknown velocity).
Inputs: Sensor cable radio frequency coaxial cable RG-58A/U2.
Range: 0 to ±105 fps (0 to ±32 m/s) (bi-directional flow).
Display: LCD with backlight, 16 letters 2 lines.
Accuracy: ±1.0% of rate.
Power Requirements: 100 to 240 VAC ±10% 50/60 Hz, or 20 to 30 VDC.
Power Consumption: AC: 15 VA; DC: 6W.
Temperature Limits: Ambient …4 to 131°F (-20 to 55°C).
Output: Analog: 4 to 20 mA DC current output; Digital: One mechanical relay
output, 240 VAC, 30 VDC, 1 A. Two transistor outputs available, Open collector
output: 30 VDC, 0.1A.
Serial Communications (option): RS485.
Enclosure Rating: NEMA 4X (IP66).
Material: Aluminum alloy.
Electrical Connections: Screw terminals.
Mounting: Wall or pipe mount.
Weight: 10 lb (4.5 kg).
215_Layout 1 7/15/14 4:00 PM Page 215
Series
SX3
Ultrasonic Flowmeter Detector
Quick and Easy Mounting
FRAME
FRAME
BNC
CONNECTOR
SENSOR
SPACING
ADJUSTABLE
EVERY 7/64 [3]
L
16-5/32
[410.16]
2-1/8
[54.00]
SENSOR
LOCK CLIP
15-3/4
[400.00]
1-15/32
[37.00]
SPACING: 0-10-5/8
[270.00]
WIRE ROPE
1-27/32
[46.99]
1-11/32
[34]
1-7/64
[28]
NAME PLATE
SENSOR
NAME PLATE
1-13/16
[46.00]
H
1-21/32
[50]
SX3 and SX3-B
SX3-D
3/16 [5.08]
L
8-31/32
[288]
13-45/64
[348]
H
1-7/32
[31]
1-3/16
[30]
Spacing
53/64~4-47/64
[21~120]
53/64~9-29/64
[21~240]
Units
inches
[mm]
inches
[mm]
1-31/32
[50.00]
1-5/16 [33.00]
FLOW
Type Pipe Size
SX3-A 3/4~3-1/2
[25~100]
SX3-B 2~8
[50-225]
CHAIN
MOUNTING SPRING
1-13/16
[46.00]
FRAME
GUIDE
5/16
[8.00]
SX3-C
Series SX3 Ultrasonic Flowmeter Detectors:
€ Helps ensure pumping efficiency
€ Provides accurate leak detection
€ Not influenced by fluid•s temperature or pressure
Model
SX3-A0
SX3-B0
SX3-C0
SX3-D0
Kind of
Detector
Small Standard
Small
Medium
Large
Flow Pipe
Size in (mm)
0.98 to 3.94 (25 to 100)
1.97 to 8.86 (50 to 225)
1.97 to 11.81 (50 to 300)
11.81 to 23.62 (300 to 600)
Acoustic
Coupler
None
None
None
None
ACCESSORIES
Model
Description
A-186
Silicone-based grease acoustic couplant, 3 oz tube
A-187
Silicone RTV acoustic couplant, 4 oz tube
A-188
Silicone-free acoustic couplant, 4 oz tube
Description
Model
SX3C-1A Heat Resistant Cable with waterproof BNC connector for SX3-A and SX3-B
SX3C-1B Heat Resistant Cable with waterproof BNC connector for SX3-A and SX3-B
SX3C-2A Heat Resistant Cable for SX3-C and SX3-D
SX3C-2B Heat Resistant Cable for SX3-C and SX3-D
Option: Consult factory for other cable lengths.
SPECIFICATIONS
Service: Clean liquids that pass
ultrasound and do not contain air
bubbles (such as pure water and
chemical solution).
Turbidity: 10000 deg (mg/L) or less.
Type of Flow: Well-developed
turbulent or laminar flow in a fluid-filled
pipe.
Permissible Air Volume Rate: Up to
2% at 1 m/s (inversely proportional to
velocity).
Range: 0 to ± 32.8 FPS (0 to ±10 m/s).
Flow Pipe Sizes: SX3A: 0.98 to 3.94
in (25 to 100 mm) for plastic piping
1.97 to 3.94 in (50 to 100 mm) for
metal piping; SX3B: 1.97 to 8.86 in (50
to 225 mm); SX3C: 1.97 to 11.81 in (50
to 300 mm); SX3D: 11.81 to 23.62 in
(300 to 600 mm).
Accuracy: 1.5 to 2% of rate.
Response Time: System cycle: 0.2 s;
Dead time: 0.2 s or less; Time
constant: 0.1 s.
Temperature Limits: Ambient -4 to
140°F (-20 to 60°C); Fluid
Temperature: SX3A/SX3B: -4 to 212°F
(-20 to 100°C); SX3C/SX3D w/ silicone
rubber for acoustic couplant: -4 to
176°F (-20 to 80°C), w/ silicone free
grease for acoustic couplant: 32 to
140°F (0 to 60°C).
Enclosure Rating: SX3A and SX3B:
IP65 (jetproof) when using waterproof
BNC connector; SX3C and SX3D: IP67
(immersion-proof) when the terminal
block is filled with silicone rubber after
wiring.
Materials: For SX3A and SX3B:
Plastic PBT for sensor housing, 304SS
for guide frame; For SX3C and SX3D:
Plastic PBT for sensor housing, 304SS
for sensor cover, 304SS and PBT for
guide rail.
Electrical Connection: Coaxial cable
up to 98.4 ft (30 m) and thermal
stability of 212°F (100°C).
Mounting: Clamped on pipe surface.
Weight: SX3A: 10.6 oz (0.3 kg); SX3B:
14.1 oz (0.4 kg); SX3C: 2.2 lb (1 kg);
SX3D: 14.1 oz (0.4 kg).
Cable Length ft (m)
16.4 (5)
32.8 (10)
16.4 (5)
32.8 (10)
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
215
Flow Transmitters,
Ultrasonic
Series SX3 Ultrasonic Flowmeter Detectors are paired with Series UXF2 converters
and employ a clamp-on type design for permanent use based on transit time measuring
method. These detectors are ideal for clean liquids containing no air bubbles such as pure
water. The easy-to-use compact and lightweight design is intended for integration into
mechanical devices. It is applicable for small to medium size pipes of diameter range from
1 to 23 in (25 to 600 mm) and provides superior cost performance.
216_Layout 1 7/8/14 11:36 AM Page 216
Series
UFB &
UFC
Ultrasonic Flowmeter Set
Excellent Performance, Easy Operation and Data Logging Option
9-5/16 [236.49]
9-5/16 [236.49]
[DISPLAY]
[DISPLAY]
7
Liters
UFB
UFC
8
Gallons
9
m3
Velocity
4
5
6
1
2
4-20 mA
3
7
Delete
8
Liters
Gallons
4
Velocity
5
1
2
9
m3
Delete
±
±
Options
0
6
3
4-20 mA
Options
7-13/16 [198.30]
0
Pulse
Pulse
UFB
UFC
4-1/2
[114.30]
7-7/32 [183.36]
4-11/16
[119.02]
FLOW
Scan here to watch product video
The Series UFB & UFC Ultrasonic Flowmeter Sets utilize the transit-time difference
for measuring flow rates in pipes non-invasively. These are permanent models, allowing
the user to mount the converters on a surface or pipe. The easy-to-use compact and
lightweight designs are intended for mechanical devices using ideally homogeneous liquids
that contain no air pockets. They feature a sturdy IP65 rating, protecting them from dust
and direct water contact. The Series UFB has 4 to 20 mA and pulse output capabilities.
The UFC has data logging capability via USB with a 4 to 20 mA and pulse output.
Flow Transmitters,
Ultrasonic
PRINCIPLES OF OPERATION
Two sensors are placed on the exterior of the pipe, and each transmits an ultrasonic
pulse through the pipe and fluid to the other. The velocity of the liquid flowing through
the pipes causes the pulse to accelerate or decelerate. The difference in the transit
times of the two pulses is used to calculate the flow rate. The use of transit time
allows the flowmeter to be unaffected by pressure or temperature changes.
APPLICATIONS
€ Treated water
€ River water
€ Sea water
€ Potable water
€ Demineralized water
€ Glycol/water mix
€ Hydraulic system
€ Diesel oil
Kit Includes:
€ Converter
€ Set of transducers
€ Ruled guide rail
€ Steel banding
€ Banding clips
€ Set of transducer cables
€ Set of hightemperature interface cables
€ Ultrasonic coupling grease
€ Type •A• to Type •B• USB communications cable (UFC only)
StandardVersion
Model
Pipe SizeRange
UFB-122 0.5 to 4.5 (13 to 115 mm)
UFB-123 2 to 79 (50 to 2000 mm)
UFB-222 0.5 to 4.5 (13 to 115 mm)
UFB-223 2 to 79 (50 to 2000 mm)
Power Supply
86 to 264 VAC
86 to 264 VAC
24 VAC/VDC
24 VAC/VDC
Data Logging Version
Model
Pipe SizeRange
UFC-122 0.5 to 4.5 (13 to 115 mm)
UFC-123 2 to 79 (50 to 2000 mm)
UFC-222 0.5 to 4.5 (13 to 115 mm)
UFC-223 2 to 79 (50 to 2000 mm)
Power Supply
86 to 264 VAC
86 to 264 VAC
24 VDC/VAC
24 VDC/VAC
OPTION
For NISTtraceable calibration certificate, use order code NISTCAL-FU.
216
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
SPECIFICATIONS
Service: Homogeneous liquids that do not contain more than 3% of air bubbles or
particulate and capable of ultrasonic wave propagation.
Inputs: TNC cable from sensors.
Range: 0.33 to 33 ft/s (0.1 to 10 m/s).
Display: 240 x 64 pixel graphic display, high contrast black on white with backlight;
Languages: English, French, German, Swedish, Italian, Spanish, Portuguese,
Russian, Norwegian, and Dutch; 5 W x 1.3 H (5 x 33.02 mm).
Accuracy: ±0.5 to ±2% of flow reading of flow rate > 0.03 ft/s (0.01 m/s) and pipe
OD > 3.0 in (75 mm); ±3% of flow reading for flow rate > 0.03 ft/s (0.01 m/s) and
pipe OD 0.5 to 3 in (13 to 75 mm); ±6% of flow reading for flow rate < 0.03 ft/s (0.01
m/s).
Power Requirements: 86 to 264 VAC (50 to 60 Hz) or 24 VAC/VDC (1 A max).
Power Consumption: 10.5 W.
Temperature Limits: Transducer: -4 to 275°F (-20 to 135°C); Controller: -4 to
122°F (-20 to 50°C).
Outputs:
Analog:
1 opto-isolated output: 4 to 20 mA, 0 to 16 mA or 0 to 20 mA (selectable);
Error current: 0 to 26 mA (selectable);
Load resistance: 620 max;
Alarm:
2 opto-isolated MOSFET NO relays, 48 V at 500 mA, maximum 200 Hz;
Pulsed:
1 opto-isolated MOSFET relay, 48 V at 500 mA, 1 to 250 pps;
Pulse width: 2 to 500 ms (selectable).
Serial Communications:USB (UFConly).
Enclosure Rating: IP65 when using TNC connector; Transducers IP54.
Materials: Plastic ABS and aluminum.
Repeatability: ±0.5 % of measured value or 0.03 ft/s (0.01 m/s).
Electrical Connections: Removeable screw-in type terminal block.
Mounting: Wall mounted using 3 type M4 screws.
Turbidity: < 3 % by volume of particulate content.
Permissible Air Content: < 3% by volume.
Response Time: < 500 ms.
Weight:
Unit not including accessories: 2.80 lb (1.26 kg);
Unit including accessories: 9.92 lb (4.5 kg).
Agency Approvals: CE.
ADDITIONAL SPECIFICATIONS
Applicable Pipe Material: Carbon steel, SS, copper, UPVC/PVDF, concrete, mild
steel, glass, brass.
Applicable Pipe Lining: Rubber, glass, concrete, epoxy, steel, other*.
Pipe Wall Thickness: 0.04 to 3 (1 to 75 mm).
Pipe Lining Thickness: < 1 (< 25 mm).
*Selectable option for special material with known propagation rate of lining material.
217_Layout 1 7/14/14 8:05 AM Page 217
Model
UFM
Compact Ultrasonic Flowmeter
Cost Effective, Compact & Adjustable Design, Non-Invasive
4-55/64
Ø15/32[123.46] 2-7/16
[61.73]
[Ø12.00]
G F E D C B A
FEMALE SMB
COAXIAL
CONNECTORS
1
2
3
59/64
[23.33] RED
16.4´
BLACK
29/64
[5 M]
GREEN
[11.67]
WHITE
BLUE
BROWN SHIELD
2X 1/2
[12.75]
4
5
1-7/64
[28.05]
4-7/64
[104.50]
59/64
[23.40]
4-20mA
PULSE
45/64
[17.70]
59/64
[23.50]
4-5/32
[105.59]
1-1/64
[25.70]
Scan here
to watch
product video
PRINCIPLES OF OPERATION
Two sensors located in the guiderail are placed on the exterior of the pipe, and each
transmits an ultrasonic pulse through the pipe and fluid to the other. The velocity of
the liquid flowing through the pipes causes the pulse to accelerate or decelerate.
The difference in the transit times of the two pulses is used to calculate the flow rate.
The use of transit time allows the flowmeter to be unaffected by pressure or
temperature changes.
Kit Includes:
€ Converter w/ adjustable guiderail
€ Set of 1.81 to 2.75Ž (46 to 70 mm) clamps
€ Set of 2 to 5Ž (51 to 127 mm) clamps
€ Set of small pipe adaptor circle clamps
€ Set of small pipe adaptor V clamps
€ Ultrasonic coupling grease
SPECIFICATIONS
Service: Clean water with <3% by volume of particulate content.
Range: 0.33 to 32.8 ft/s (0.1 to 10 m/s).
Display: Backlit: 3.27 H x 0.74 W (83.1 mm x 18.8 mm), 2 line x 16 characters.
Accuracy: ±3% of flow reading for > 0.98 ft/s (> 0.3 m/s).
Power Requirements: 12 to 24 VDC or VAC.
Power Consumption: 7 W max.
Temperature Limits:
Process: 32 to 185°F (0 to 85°C);
Ambient: 32 to 122°F (0 to 50°C).
Outputs:
Analog: 1 opto-isolated: 4 to 20 mA;
Error current: 3.5 mA;
Load resistance: 620 max;
Pulse: 1 opto-isolated MOSFET relay, 500 mA max, 166 pps max, 200 Hz max.
Enclosure Rating: IP54.
Enclosure Material: Plastic polycarbonate.
Repeatability: ±0.5% of measured value.
Electrical Connections: 16.4´ (5 m) cable.
Response Time: < 1 s.
Weight: 2.9 lb (1.315 kg).
Agency Approvals: CE.
ADDITIONALSPECIFICATIONS
Applicable Pipe Material: Steel, copper, or plastic.
Pipe Outside Diameter: 0.98 to 4.62 (24.89 to 117.35 mm).
Applicable Pipe Lining: None.
Pipe Wall Thickness: 0.02 to 0.39 (0.5 to 10 mm).
Model UFM-1, Compact Ultrasonic Flowmeter
OPTION
For NISTtraceable calibration certificate, use order code NISTCAL-FU.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
217
Flow Transmitters,
Ultrasonic
APPLICATIONS
€ Flow measurement for heat metering
€ Chilled water metering and monitoring
€ Potable water metering and monitoring
€ Process water metering and monitoring
3/4
[18.95]
FLOW
Model UFM Compact Ultrasonic Flowmeter is a low cost clamp-on, ultrasonic
flowmeter. The Model UFM implements the transit-time difference to measure flow rates
in pipes non-invasively. It is a compact and lightweight design, featuring an easily installed,
all in one clamp-on unit. This unit can measure velocity and flow in pipes with outside
diameters ranging from 0.98 to 4.62˝ (24.89 to 117.35 mm). The screen offers easy to read
text with a convenient backlight for visual comfort. This model comes with a volume pulse
and 4 to 20 mA flow rate output.
31/32
[24.45]
218_Layout 1 7/15/14 3:58 PM Page 218
Series
PUX2
Portable Ultrasonic Flowmeter Converter
Data Logging and BTU Capability
PUX2 Without Printer
2-9/16
[65.00]
4-23/32
[120.00]
4X M4X5
DOWNSTREAM
SENSOR
UPSTREAM
SENSOR
8-17/64
[210.00]
ANALOG
INPUT/OUTPUT
DC POWER
INPUT
12-19/32
[320.00]
REMOVABLE COVER
VIEW UNDER REMOVABLE COVER
Flow Transmitters,
Ultrasonic, Portable
FLOW
SD SLOT USB PORT LCD
CONTRAST ADJUSTMENT
PUX2-PR With Printer
The Series PUX2 Portable Ultrasonic Flowmeter Converters are paired with
Series PSX2 sensors in order to utilize the transit-time difference for measuring flow rates
in pipes from the outside. It is a compact and lightweight instrument incorporating the
latest electronics and digital signal processing technologies, realizing high performance
and easy operation. This device is designed for high accuracy and high-speed response.
This portable unit is capable of 12 hours of continuous operation with its built-in battery,
which requires only 3 hours to recharge. The rugged NEMA 3X (IP54) enclosure allows
the PUX2 to be exposed to rain, while the efficient layout of the function keys aid the user
with easy page selection and setting changes. The built in USB port allows for easy
connection to a personal computer.
FEATURES
€ SD memory card slot for recording data
€ USB port for easy PC connection
€ High accuracy
€ Large type color graphic LCD
€ Flow rate, flow velocity, and flow totalization functions
€ Thermal flow rate (BTU) function with two temperature inputs perfect for energy
audits
Portable Ultrasonic
Model
Flowmeter Converter
PUX2
Converter
PUX2-PR
Converter with Printer
Unit includes 5 m coaxial cable for use with PSX2-A, -B sensor.
SPECIFICATIONS
Service: Homogenous liquids (water, sea water, oil, and fluid of unknown velocity)
capable of ultrasonic wave propagation.
Inputs: BNC connector, coaxial cable from flow sensor. Two 4-20 mA DC, or one
4-20 mA DC and one 1 to 5 VDC.
Range: 1 to ±105 fps (0.3 to ±32 m/s).
Display: LCD 240 x 320 dot (with back light).
Accuracy: ±1.0 % of rate.
Power Requirements: 3 V BR2330 lithium metal battery, internal, factory
replaceable and TK7N6384 lithium ion battery (continuous operations time: 12
hours without printer and back light off; recharging time: 3 hours, power adapter
used) installed functional, user replaceable.
Power Consumption: 3W.
Power Adapter: Special type power adapter 90 to 264 VAC, 50/60 Hz.
Power Failure Backup: Memory backup with lithium battery (effective term, 10
years).
Temperature Limits: Ambient 131°F (55°C) without printer; 113°F (45°C) with
printer.
Output: 4 to 20 mA DC, 1 point (load resistance, 0 to 600 ).
Serial Communications: RS-485, 1 point.
Enclosure Rating: NEMA 3X (IP54) (without printer).
Material: Plastic case.
Weight: 2.2 lb (1 kg) without printer; 2.65 lb (1.2 kg) with printer.
OPTION
For NISTtraceable calibration certificate, use order code NISTCAL-FU.
For More Details:See Bulletin F-9-PUX2
218
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
219_Layout 1 7/14/14 7:46 AM Page 219
Portable Ultrasonic Flowmeter Detector
Series
PSX2
Compact and Lightweight
SADDLE
SADDLE
SCALE
(MM)
SCALE
DISTANCE
BETWEEN
TWO
ELEMENTS
SCALE
[MM]
SCALE
CONNECTOR
LOCK NUT
ELEMENT
HOLDER
BNC
CONNECTOR
12-19/32
[320]
DISTANCE
BETWEEN
TWO
ELEMENTS
1-7/16
[36]
3-35/64 MAX
[90 MAX]
CURSOR
PSX2-B Small
2-1/16
[52.5] Diameter Sensor
3-1/16
[78]
SADDLE
SPACING
0 ˜13˝
[0 ˜330]
20-7/8
[530]
LOCK NUT
ELEMENT
HOLDER
LOCK NUT
ELEMENT
HOLDER
CURSOR
1-5/16
[33]
Ø1-1/32
[Ø26]
1-27/64
[36]
3-35/64 MAX
[90 MAX]
2-1/16
[52.5]
1-5/16
[33]
CONNECTOR
21-1/4
[540]
CURSOR
3-5/8
[92]
SCALE
SCALE
[MM]
1-19/64
[33]
3-35/64
[90 MAX]
PSX2-HTHigh
Temperature Sensor
PSX2-A Small Sensor
(Standard)
CABLE
[L=5 METERS]
8-5/64
[205 MAX]
WIRE ROPE
FLOW
2-3/64
[52]
BNC CONNECTOR
2-5/8
[67]
PSX2-D Large Sensor
ACCESSORIES
Model
A-186
A-187
A-188
Model
PSX2-A
PSX2-B
PSX2-D
PSX2-HT
Description
Silicone-based grease acoustic couplant, 3 oz tube
Silicone RTV acoustic couplant, 4 oz tube
Silicone-free acoustic couplant, 4 oz tube
Description
Small Sensor (2 MHz), General Use Structure
Small Diameter Sensor, General Use Structure
Large Sensor, General Use Structure, 5 m Coaxial Cable
High-Temperature Sensor, General Use Structure, 5 m Coaxial Cable
SPECIFICATIONS
Service: Homogenous liquids (water,
sea water, oil, and fluid of unknown
velocity) capable of ultrasonic wave
propagation; Turbidity: 10000 deg.
(mg/L) or less; State of flow: Axissymmetric flow in pipe filled with fluid.
Range: 0 to ±105 fps (0 to +32 m/s).
Accuracy: ±1.0% of rate, except
PSX2-B: ±1.5% of rate.
Response Time: 1 s or less.
Temperature Limits: Ambient 140°F
(60°C); Fluid Temperature: PSX2-A and
PSX2-B: -40 to 212°F (-40 to 100°C)
PSX2-D: -40 to 176°F (-40 to 80°C)
PSX2-HT: -40 to 392°F (-40 to 200°C).
Enclosure Rating: Drip-proof, IP52
(NEMA 5); Large sensor, immersion
proof, IP67 (NEMA 6).
Materials: PSX2-E, PSX2-B, and
PSX2-D: Plastic case, and aluminum
alloy and plastic mounting bracket;
PSX2-HT: 304SS case, and aluminum
alloy and 304SS mounting bracket.
Electrical Connection: Terminal
screws.
Mounting: PSX2-E and PSX2-B:
Plastic cloth belt; PSX2-D:SS wire;
PSX2-HT: SS belt.
Weight: PSX2-E: 1.32 lb (0.6 kg);
PSX2-B: 1.76 lb (0.8 kg); PSX2-D: 3.1
lb (1.4 kg); PSX2-HT: 3.75 lb (1.6 kg).
Flow Pipe Sizes
1.97 to 15.75 in (50 to 400 mm)
0.51 to 3.94 in (13 to 100 mm)
7.87 to 236.22 in (200 to 6000 mm)
1.97 to 15.75 in (50 to 400 mm)
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
219
Flow Transmitters,
Ultrasonic, Portable
Series PSX2 Portable Ultrasonic Flowmeter Detectors are paired with Series PUX
and PUX2 converters in order to utilize the transit-time difference for measuring flow rates
in pipes from the outside. It is a compact and lightweight instrument incorporating the
latest electronics and digital signal processing technologies, realizing high performance
and easy operation. Series PSX2 Detectors are non-intrusive clamp-on sensors and are
easy to install, require simple maintenance, and are free from pressure-loss, choking,
corrosion, and leaking.
220_Layout 1 7/21/14 9:30 AM Page 220
Series
PUB &
PUF
Portable Ultrasonic Flowmeter Kit
Portable, Non-Invasive and Data Logging Option
PUB
10-25/64 [264.00]
1-31/32
[50.00]
6-39/64
[168.00]
FLOW
PUF
Flow Transmitters,
Ultrasonic, Portable
Scan here to watch product video
The Series PUB & PUF Portable Ultrasonic Flowmeter Kits utilize the transit-time
difference for measuring flow rates in pipes non-invasively. They are compact and
lightweight instruments incorporating the latest electronics and signal processing
technologies, realizing high performance and easy operation. These devices are perfect for
on-the-go flow monitoring, capable of 20 hours continuous operation with built-in,
rechargeable battery. The PUB comes with a rugged carrying case with molded foam
inserts while the PUF boasts an IP67 rated case to hold and protect all equipment
conveniently. Their screens offer easy to read text with convenient backlight for visual
comfort. The efficient layout of the function keys adds to these units’ easy to use
programming. These series offer analog as well as a pulsed outputs.
PRINCIPLES OF OPERATION
Two sensors are placed on the exterior of the pipe, and each transmits an ultrasonic
pulse through the pipe and fluid to the other. The velocity of the liquid flowing through
the pipes causes the pulse to accelerate or decelerate. The difference in the transit
times of the two pulses is used to calculate the flow rate. The use of transit time
allows the flowmeter to be unaffected by pressure or temperature changes.
APPLICATIONS
€ Treated water
€ River water
€ Sea water
€ Potable water
€ Demineralized water
€ Glycol/water mix
€ Hydraulic system
€ Diesel oil
Kit Includes:
€ Converter
€ Set of transducers
€ Transducer holders
€ Set transducer cables (6.56 ft (2 m))
€ 4 to 20 mA communication cables
€ 12 VDC power supply
€ Ultrasonic coupling grease
€ Set of chains
€ Ruled guide rail
€ Test block
€ Carrying case
Standard Version
Pipe DiameterRange
Model
0.5 to 4.5 (13 to 115 mm)
PUB-10
2 to 78 (50 to 2000 mm)
PUB-20
Data Logging Version
Pipe SizeRange
Model
0.5 to 78 (13 to 2000 mm)
PUF-1001
0.5 to 4.5 (13 to 115 mm)
PUF-1002
2 to 78 (50 to 2000 mm)
PUF-1003
220
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
SPECIFICATIONS
Service: Homogeneous liquids that do not contain air bubbles capable of ultrasonic
wave propagation.
Inputs: Lemo connector cable from sensors.
Range: 0.33 to 65.62 ft/s (0.1 to 20 m/s).
Display: 240 x 64 pixel graphic display, high contrast black on white with backlight;
Languages: English, French, German, Swedish, Italian, Spanish, Portuguese,
Russian, Norwegian, and Dutch; 5.2 W x 1.5 H.
Accuracy:
±0.5 to 2% of flow reading for flow rate > 0.66 ft/s (0.2 m/s) and pipe ID > 2.95 in
(75 mm);
±3% of flow reading for flow rate > 0.66 ft/s (0.2 m/s) and pipe ID in range 0.512 to
2.95 (13 to 75 mm);
±6% of flow reading for flow rate < 0.66 ft/s (0.2 m/s).
Power Requirements: 9 to 24 VDC, (1) 5-Cell NiMH battery, internal, factory
replaceable (continuous operation time: 20 hours with back-light and output off)
(recharging time: 6.5 hours, power adapter used).
Power Consumption: 10.5 W.
Power Adapter: 110/240 VAC adapter. UK,US, European adapters included.
Temperature Limits: -4 to 275°F (-20 to 135°C).
Outputs:
Analog:
1 opto-isolated output: 4 to 20 mA, 0 to 16 mA or 0 to 20 mA (selectable);
Error current: 0 to 26 mA (selectable);
Load resistance: 620 max;
Pulse:
1 opto-isolated MOSFET relay, 150 mA max, 500 pps max, 200 Hz max.
Serial Communications:USB; RS-232 (PUF only).
Enclosure Rating: Converter: IP54; Transducers: IP51.
Materials: Flame retardant injection molded ABS plastic.
Repeatability: ±0.5 % of measured value or ±0.066 ft/s (0.02 m/s).
Electrical Connections: Multi-pin Lemo plugs.
Turbidity: < 3% by volume of particulate content.
Permissible Air Content: < 3% by volume.
Response Time: < 500 ms.
Weight:
Unit without accessories: 2.3 lb (1.06 kg);
Unit with accessories in carrying case: 13.23 lb (6.0 kg).
Agency Approvals: CE.
Applicable Pipe Material: Carbon steel, SS, copper, UPVC/PVDF, concrete,
galvanized steel, mild steel, glass, brass.
Applicable Pipe Lining: Rubber, glass, concrete, epoxy, steel, other*.
Pipe Wall Thickness: 0.04 to 3 (1 to 75 mm).
Pipe Lining Thickness: < 1 (< 25 mm).
*Selectable option for special material with known propagation rate of the lining
material.
OPTION
For NISTtraceable calibration certificate, use order code NISTCAL-FU.
221_Layout 1 7/24/14 11:52 AM Page 221
Model
UTG
Ultrasonic Thickness Gage
Ideal For Use with Ultrasonic Flow Transmitters, Adjustable Sound Velocity
CAL.
2-7/16
[62.00]
SELECT
mm
inch
VEL.
2-23/64
[60.00]
UTC
ULTRASONIC THICKNESS GAUGE
4-23/32
[120.00]
1-3/16
[30.00]
The compact Model UTG Ultrasonic Thickness Gage can measure the thickness of a
variety of materials. The UTG has a wide range of applications including industrial,
automotive, HVAC, and plumbing. The UTG reads in inches or millimeters and features
an adjustable sound velocity to allow for an array of materials to be measured. The UTG is
useful when using any pipe-mount ultrasonic transmitter. The UTG allows the user to find
the wall thickness of the pipe when programming an ultrasonic transmitter without cutting
or removing a section of the pipe to measure it. The UTG is also great for monitoring
corrosion in closed vessels such as boilers and chemical tanks.
Model UTG, Ultrasonic Thickness Gage
Sound Velocity: 1118 to 20132 mph
(500 to 9000 m/s).
Temperature Limits: 32 to 122°F (0 to
50°C).
Humidity Limit: < 80%.
Display: 4 digits, 0.394 (10 mm) LCD.
Power Requirement: (4) 1.5 V AAA
alkaline batteries, not included, user
replaceable.
Weight: 5.78 oz (164 g).
Agency Approvals: CE.
Ultrasonic Flow Transmitter
FLOW
Series
ULF
SPECIFICATIONS:
Service: Steel, cast iron, aluminum, red
copper, brass, zinc, quartz glass,
polyethylene, PVC, gray cast iron,
nodular cast iron, other. Selectable
option for special materials with known
sound propagation rate.
Range: 0.047 to 7.874 (1.2 to 200
mm).
Accuracy: ±0.5%.
Resolution: 0.001 / 0.1 mm.
Integrated LCD Display, Non-Contact Level Sensing for Open Channel Flow
4-7/32
[107.0]
1-15/32
[37.0]
1-3/16
[30.0]
35°
1/2˝ NPT CONDUIT OPENING
[ULF-XX-XXN]
Flow Transmitters,
Ultrasonic
7-5/8
[194.0]
13/32
[10.0]
PG9 CABLE GLAND
[ULF-XX-XXL]
2˝ NPT
OR 2˝ BSP
2-9/16
[65.0]
3-3/4
[95.0]
1 [25.1]
2-5/32
[55.0]
The Series ULF is an ultrasonic continuous flow measurement transmitter perfect for
maintenance free, non-contact measurement of open channels. This series operates on
ultrasonic technology and offers dependable, highly accurate measurements. The ULF
features easy programming with a 4 digit LCD screen and a simple menu format. It is
perfect for direct installation over flumes and weirs and compensates for virtually all
environmental conditions such as vapors, gases, temperature variations, and wind. The
weatherproof NEMA 4 body makes this unit ideal for any flow measurement situation.
FEATURES
€ High accuracy (0.25% of max. range)
€ Automatic ambient temperature compensation
€ ABS & UV resistant body
€ Programmed with standard weir and flume sizes
Model
Description
ULF-01-KFN Ultrasonic FlowTransmitter Short Range
ULF-02-KFN Ultrasonic Flow Transmitter Standard Range
Max. Range
16.4 ft (5 m)
49.2 ft (15 m)
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials:
Sensor: Polypropylene;
Acoustic window: ECTFE.
Ranges:
ULF-X1-XXX: 0.82 to 16.4 ft
(0.25 to 5 m).
ULF-X2-XXX: 1.96 to 49.2 ft
(0.6 to 15 m).
Accuracy: 0.25% of max. range (at
20°C).
Resolution: 0.04 (1 mm).
Blind Zone:
ULF-X1-XXX: 0.8 ft (.25 m);
ULF-X2-XXX: 1.96 ft (0.6 m).
Beam Angle: 5° @ 3 db point.
Temperature Limits: -40 to 158°F (-40
to 70°C).
Temperature Compensation:
Automatic.
Pressure Limits: 13.5 to 30 psi (0.9 to
2 bar).
Power Requirement: 18 to 28 VDC.
Output Signal: 4 to 20 mA.
Loop Resistance: Max. 727 @ 28
VDC.
Electrical Connections: Screw
terminal.
Conduit Connection: 1/2 NPT, cable
gland (optional).
Process Connection: 2 NPT, 1/2
BSP (optional).
Enclosure: Plastic enclosure: ABS &
UV resistant body.
Enclosure Rating: NEMA 4 (IP65).
Mounting Orientation: Vertical.
Failsafe: 3 min delay before
transmission of an error signal.
Memory: Non-volatile.
Display: 4 digit LCD.
Units: ft, m (optional).
Programming: 4 button.
Weight: 3.1 lb (1.4 kg).
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
221
222_Layout 1 7/8/14 11:39 AM Page 222
Model
RVM
Portable Radar Wave Velocity Meter
Non-Contact Measurement, Handheld Meter, Angle Compensation
3
[76.3]
SEL
MENU
RCL
PWR
MODE
10
[250.8]
FLOW
Scan here
to watch
product video
The Model RVM Portable Radar Wave Velocity Meter uses Doppler Radar
technology to accurately measure surface velocity of open channel flow. The “point-andshoot” design along with automatic vertical angle compensation provides easy to use
operation. Model RVM also has user-adjustable horizontal angle compensation of 5°
increments to further reduce measurement error. Flow velocity can be measured bidirectionally with user-selectable directional modes (flows away, towards, or in both
directions). Model RVM features a backlit LCD that indicates flow velocity in feet per
second or meters per second. Model RVM includes the meter, rechargeable batteries, 12
VDC car charger, and a rugged case.
Flow Sensors,
Portable
FEATURES
€ High accuracy
€ Doppler radar technology
€ Works with shallow flow depths
€ Field rechargeable
APPLICATIONS
€ Sewer systems
€ Water systems
€ Rivers
€ Streams
€ Hydrologic systems
Model RVM, PortableRadar Wave Velocity Meter
ACCESSORY
A-RVM-CC, RS-232 Communication Cable
222
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
3-3/4
[95.0]
2-1/4
[59.0]
SPECIFICATIONS:
Service: Water.
Range: 0.1 to 43 fps (0.3 to 13 m/s).
Display: Single-line, 5-digit, backlit LCD.
Accuracy: ±5%.
Power Requirements: 6.1 to 8 VDC, (6) 1.2 V AA NiMH batteries, installed
functional, user replaceable (12 VDC lighter plug power cable included).
Power Consumption: 0.18 A max.
Serial Communications: RS232 (with purchase of A-RVM-CC).
Temperature Limits: -22 to 158°F (-30 to 70°C).
Enclosure Rating: IP55.
Humidity Limit: 90% RH @ 98.6°F (37°C).
Enclosure Material: ABS polycarbonate blend.
Angle Compensation: Vertical: automatic via tilt sensor; Horizontal: adjustable
from 0 to 45° in 5° increments for cosine angle error.
Weight: 2.1 lb (907 g).
223_Layout 1 7/8/14 11:40 AM Page 223
Series
DMF
Digital Mass Flow Controllers
Programmable, RS485 Interface, Up To 500 psig, ±1% Accuracy
6-5/8
[167.13]
1 7/8
[47.75]
3/4
[17.53]
5 1/4
[133.86]
3/4
[17.53]
2 7/8
[74.42]
6-32
FOR FLOW ≥ 15 L/M
SPECIFICATIONS
Service: Clean gases compatible with wetted parts.
Wetted Materials: 316 SS, 416 SS, fluoroelastomer O-rings.
Accuracy: ±1% FS including linearity between 59 to 77°F (15 to 25°C) and 10 to
60 psia (0.7 to 4 bar); ±2% FS from 32 to 122°F (0 to 50°C) and 5 to 150 psia
(0.3 to 10 bar).
Repeatability: ±0.15% of full-scale.
Response Time: 0.6 to 1.0 second to within ±2% of setpoint over 20% to 100%
FS.
Output: Linear 0-5 VDC (2000 min. load impedance); 0-10 VDC (4000 min.
load impedance).
Maximum Particulate Size: 100 microns.
Temperature Limits: 41 to 122°F (5 to 50°C).
Power Supply: ±15 VDC; 13.5 watts maximum.
Process Connections: 1/4 compression fitting for flow rates 50 L/m; 3/8 for
flows 60 L/m.
Pressure Limits: 500 psig (34.5 bar).
Leak Integrity: 1 x 10-9 sccs of helium.
Computer Interface: RS-485.
Agency Approvals: CE.
Mass Flowmeters/
Controllers
Model*
Range
Model*
Range
DMF-41401 0 to 10 sccm DMF-41408 0 to 2 L/min
DMF-41402 0 to 20 sccm DMF-41409 0 to 5 L/min
DMF-41403 0 to 50 sccm DMF-41411 0 to 15 L/min
DMF-41404 0 to 100 sccm DMF-41431 0 to 30 L/min
DMF-41405 0 to 200 sccm DMF-41433 0 to 50 L/min
DMF-41406 0 to 500 sccm DMF-41842 0 to 100 L/min
DMF-41407 0 to 1 L/min
*Specified flow ranges are for an equivalent flow of
nitrogen at 70°F (21°C) @ 760 mm Hg.
2 3/4
6-32
[68.33]
*FOR FLOW ≥ 50 L/M
1 1/2
[38.10]
ACCESSORIES
Model DMF-110P, 110V power supply with 25-pin connector
Model DMF-220PE, 220V power supply with 25-pin connector
Model DMF-CBL1, 6´ cable with branch to separate power supply
Model DMF-CBL2, 6´ cable with branch to computer port
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
FLOW
Program, record, analyze, and control flow rates of various gases with Series DMF
Digital Mass Flow Controller. Controllers are designed with straight tube sensors with
restrictor flow elements to ensure laminar gas flow for accurate and repeatable results.
Series DMF are unaffected by temperature and pressure variations.
Controllers can be programmed for various control functions including flow set point,
totalizer, stop totalizer, totalize from preset flow, stop and preset total, auto zero, and more.
Auto zero feature utilizes an automatic balancing circuit that virtually eliminates drift of
zero and span. In addition, Series DMF controllers have two dry contact closures to operate
pumps, valves, or other process equipment.
The Series DMF features an auto tune function to optimize control response for a specific
gas under actual process conditions. Self diagnostic tests are run at power up to ensure
the controller is in optimum working condition. Calibration information for up to 10 gases
and conversion factors for up to 256 different gases are stored in memory. High and low
gas flow alarm limits are programmed via RS-485 interface. Software supports
programmable flow modes, allowing execution of custom programming of up to ten steps.
5 5/8 or 5 7/8*
[143.51]
6 1/4
[157.23]
223
224_Layout 1 7/16/14 11:28 AM Page 224
Series
GFM2
Gas Mass Flow Meter
±1% FS, Programmable Relays
1-1/8
[28.70]
3-5/32 [80.16]
[DISPLAY]
4-29/64
[112.97]
MASS FLOW METER
SERIES GFM2A
FLOW
PROCESS CONNECTION
[COMPRESSION FITTINGS ATTACHED]
Mass Flowmeters/
Controllers
FLOW
5-5/16 [134.88]
The Series GFM2 Gas Mass Flow Meter is an ideal choice for the
measurement of flow rates of a wide variety of gases. GFM2 utilizes a straight
tube sensor with a restrictor flow element to provide a high ±1% FS accuracy
and ±0.25% FS repeatability.
Gas flow can be displayed in 23 different engineering units on an optional
2x16 character LCD display. Digital RS-232 or RS-485 interfaces allow for
easy communication and for multi-drop capability of up to 256 units (RS-485
only). Additionally, this user-friendly interface allows for the programming
of high and low gas flow alarms, along with two electromechanical SPDT
relays with latch options. Stores calibration information for up to 10 different
gases, internal or user-specific K-factors. Comes standard with support
software for programming the various parameters of the GFM2. With self
diagnostics run at start up and a pressure limit of up to 500 psi (34.5 bar),
the GFM2 is the optimal choice for many flow measurement application. The
GFM2 includes a NIST traceable certificate.
SPECIFICATIONS
Service: Clean gases compatible with wetted parts.
Wetted Materials: GFM2-X-X-A: Anodized aluminum, brass, 316 SS
fluoroelastomer O-rings; GFM2-X-X-S: 316 SS, and fluoroelastomer
O-rings; Buna-N, EPR and PTFE O-rings optional.
Accuracy: ±1% FS.
Repeatability: ±0.25% FS.
Response Time: 2 seconds to within ±2% of actual flow.
Output Signal: Linear 0 to 5 VDC (3000 min. load impedance) and
4 to 20 mA (500 max. loop resistance).
Relay Rating: 1 amp @ 24 VDC.
Max. Particulate Size: 5 microns.
Temperature Limits: 32 to 122°F (0 to 50°C).
Power Supply: 11 to 26 VDC.
Process Connections: 1/8 compression fitting for flow rates 10
L/min; 1/4 for 50 L/min; 3/8 for 100 L/min.
Display: 2 x 16 character LCD (optional).
Pressure Limits: 500 psig (34.5 bar).
Leak Integrity: 1 x 10-9 smL/sec of helium.
Weight: 1.05 lb (0.48 kg).
FEATURES
€ Programmable totalizer indicates total gas quantity.
€ High and low gas flow alarm limits with preset delay interval.
€ Two sets of user-programmable electromechanical SPDT relays
with latch option.
€ User-selectable analog 0 to 5 VDC or 4 to 20 mA outputs.
€ Internal conversion factors for up to 32 gases.
€ Digital interface (RS-232 / RS-485, Profibus DP available).
€ Automatic sensor zero offset adjustment (via digital interface or
local push button).
€ Self-diagnostic tests.
ACCESSORY
A-110NA12, 110 VAC Power Supply, 12 VDC with Communication
Interface Branch
224
Example GFM2 AIR 010 A V A N A 2
Series
GFM2
Specialty
AIR
Gas &
AR
K-Factor
C2H2
C3H8
C4H10
CH4
CO
CO2
HF
HE
H2
N2
NH3
O2
SO2
Body
010
Size
050
100
Body
A
Material
S
Seal
Material
Fittings
Display
V
B
E
T
A
B
D
N
L
Output
Signal
Digital
Interface
Specify flow range
at time of order:
Flow Ranges
ml/min l/min
10
2
20
5
50
10
100
20
200
30
500
40
1000
50
60
80
100
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
A
B
2
5
9
GFM2-AIR-010-A-V-A-N-A-2
Gas Mass Flow Meter
Air 1.0000
Argon 1.4573
Acetylene 0.5829
Propane 0.3500
Butane 0.2631
Methane 0.7175
Carbon Monoxide 1.0000
Carbon Dioxide 0.7382
Hydrogen Fluoride 0.9998
Helium 1.4540
Hydrogen 1.0106
Nitrogen 1.0000
Ammonia 0.7310
Oxygen 0.9926
Sulfur Dioxide 0.6900
Low Flow
Medium Flow
High Flow
Aluminum
Stainless Steel: Body Size = 010
Body Size = 050
Body Size = 100
Fluoroelastomer
Buna-N
EPR
PTFE
1/8 Compression (Low)
1/4 Compression (Medium)
3/8 Compression (High)
No Display
LED Display
0 to 5 VDC
4 to 20 mA
RS232
RS485
PROFIBUS
Maximum flow range per body size for the
given gases:
Body Max Flow Range (l/min)
Size AIR AR C2H2 C3H8 C4H10 CH4 CO
2
2
5
010 10 10 5
10
5
30 50
050 50 50 20 10
20
60 100
100 100 100 50 30
Body
Size
010
050
100
Max Flow Range (l/min)
CO2 HE H2
N2
NH3
5
10
5
10 10
30 50 50
50
30
60 100 100 100 60
O2
10
50
80
SO2
5
30
60
225_Layout 1 7/16/14 11:40 AM Page 225
Series
GFM3
Gas Mass Flow Meter
Flow Monitoring, Push-Button Configuration
1-21/32
[42.16]
4-1/4 [107.87]
GFM3
5-1/4
[133.60]
PROCESS CONNECTIONS
WITH COMPRESSION
FITTINGS ATTACHED
FLOW
PRESSURE
TEMPERATURE
FLOW
3/4
[19.30]
1-11/32
[34.29]
1-1/2
[38.10]
FEATURES
• Multi-drop capability of up to 256 units (for RS-485 option).
• Programmable 12 digit totalizer indicates total gas volume.
• Four button keypad and large 128x64 graphical LCD with backlight.
• Internal conversion factors for up to 32 gases.
• Automatic zero adjustment.
• Self diagnostic tests.
• Free communication software available for download at
www.dwyer-inst.com
B 2
A
B
G
2
5
9
GFM3-AIR-010-5-E-B-L-B-2
Gas Mass Flow Meter
Air 1.0000
Argon 1.4573
Acetylene 0.5829
Propane 0.3500
Butane 0.2631
Methane 0.7175
Carbon Monoxide 1.0000
Carbon Dioxide 0.7382
Hydrogen Fluoride 0.9998
Helium 1.4540
Hydrogen 1.0106
Nitrogen 1.0000
Ammonia 0.7310
Oxygen 0.9926
Sulfur Dioxide 0.6900
Low Flow
Medium Flow
High Flow
±15 VDC
12 VDC
24 VDC
Fluoroelastomer
Buna-N
EPR
PTFE
1/8 Compression (Low)
1/4 Compression (Medium)
3/8 Compression (High)
No Display
LED Display
0 to 5 VDC
4 to 20 mA
0 to 10 VDC
RS232
RS485
PROFIBUS
Mass Flowmeters/
Controllers
SPECIFICATIONS
Service: Clean gases compatible with wetted parts.
Wetted Materials: 316 SS, 416 SS; Fluoroelastomer, Buna-N, EPR or
PTFE O-rings.
Accuracy: ±1% FS.
Repeatability: ±0.25% FS.
Response Time: 0.6 to 1.0 s to within ±2% of setpoint over 20 to 100% FS.
Output Signal: Linear 0 to 5 VDC (3000 min. load impedance); 0 to 10
VDC (6000 min. load impedance); 4 to 20 mA (500 max. loop
resistance).
Relay Rating: 1 amp @ 24 VDC.
Max. Particulate Size: 5 microns.
Temperature Limits: Ambient: 32 to 122°F (0 to 50°C); Dry Gases: 14 to
122°F (-10 to 50°C).
Power Supply: 12 VDC; 15 VDC; ±24 VDC.
Process Connections: 1/8 compression fitting for flow rates
10 L/min; 1/4 for 50 L/min; 3/8 for 100 L/min.
Pressure Limits: 500 psia (35 bar).
Leak Integrity: 1 x 10-9 smL/sec of helium.
Display: 128 x 64 graphic LCD with backlight.
Weight: 1 lb (.45 kg).
Example GFM3 AIR 010 5 E B L
Series
GFM3
Specialty
AIR
Gas &
AR
K-Factor
C2H2
C3H8
C4H10
CH4
CO
CO2
HF
HE
H2
N2
NH3
O2
SO2
Body
010
Size
050
100
Power
5
Supply
2
4
Seal
V
Material
B
E
T
Fittings
A
B
D
Display
N
L
Flow
Output
Signal
Digital
Interface
2
[51.05]
FLOW
The Series GFM3 Gas Mass Flow Meter is an ideal choice for the
measurement of flow rates of a wide variety of gases. This digital flow meter
features a 12-digit totalizer for total gas volume indication, and is available in the
choice of 0 to 5 VDC, 0 to 10 VDC, or 4 to 20 mA output signals. Standard LCD
and four button keypad allows easy access to the many features of the GFM3. Digital
interface operates through available RS-485 or RS-232, providing access to internal
data parameters and multi-drop capability of up to 255 units (RS-485 only). Set
alarms remotely via digital interface for flow to alert user of high or low thresholds
being exceeded. With a high ±1% FS accuracy and ±0.25% FS repeatability, the
GFM3 is the optimal choice in gas flow metering and monitoring. The GFM3 comes
with a NIST traceable certificate.
5-1/4 [133.10]
6-3/4 [171.70]
Note: Specify flow range at time of order
ACCESSORIES
A-110N12, 110 VAC Power Supply, 12 VDC Standard Interface
A-110N24, 110 VAC Power Supply, 24 VDC Standard Interface
A-110NA15, 110 VAC Power Supply, 15 VDC Standard Interface
Flow Range Chart: See page 224 (Series GFM2)
Max Flow RangeChart(per body size for the given gases): See page 224 (Series GFM2)
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
225
226_Layout 1 7/16/14 11:38 AM Page 226
Series
GFM4
Gas Mass Flow Meter
Pressure, Temperature and Flow Monitoring
1-21/32
[42.16]
GFM4
5-1/4
[133.60]
2X PROCESS CONNECTIONS
WITH COMPRESSION
FITTINGS ATTACHED
FLOW
FLOW
PRESSURE
TEMPERATURE
3/4
[19.30]
1-11/32
[34.29]
Mass Flowmeters/
Controllers
FLOW
1-1/2
[38.10]
The Series GFM4 Gas Mass Flow Meter is an ideal choice for the
measurement of flow rates of a wide variety of gases. This multi parameter flow
meter supports various functions such as flow totalizer, flow, temperature, and
pressure alarms, and is available in a choice of 0 to 5VDC, 0 to 10VDC, or 4 to
20 mA output signals. Standard LCD and four button keypad allows easy access
to the many features of the GFM4. Digital interface operates through available
RS-485 or RS-232, providing access to internal data parameters and multi-drop
capability of up to 255 units (RS-485 only). Set alarms remotely via digital
interface for flow, pressure, and temperature to alert user of high or low
thresholds being exceeded. With a high ±1% FS accuracy and ±0.25% FS
repeatability, the GFM4 is the optimal choice in gas flow metering and
monitoring. The GFM4 comes with a NIST traceable certificate.
GFM4 AIR 010 5 V A N A C 2
GFM4
AIR
AR
C2H2
C3H8
C4H10
CH4
CO
CO2
HF
HE
H2
N2
NH3
O2
SO2
Body
010
Size
050
100
Power
5
Supply
2
4
Seal
V
Material
B
E
T
A
Fittings
B
D
Display
N
L
Flow Output
A
Signal
B
G
Temperature
A
& Pressure
B
Output
C
Signal
D
E
F
G
H
I
J
Digital
2
Interface
5
9
Example
Series
Specialty
Gas &
K-Factor
SPECIFICATIONS
Service: Clean gases compatible with wetted parts.
Wetted Materials: 316 SS, 416 SS; Fluoroelastomer, Buna-N, EPR or
PTFE O-rings.
Accuracy: ±1% FS.
Repeatability: ±0.25% FS.
Response Time: 0.6 to 1.0 s to within ±2% of setpoint over 20 to 100%
FS.
Output Signal: Linear 0 to 5 VDC (3000 min. load impedance); 0 to 10
VDC (6000 min. load impedance); 4 to 20 mA (500 max loop
resistance).
Relay Rating: 1 amp @ 24 VDC.
Max Particulate Size: 5 microns.
Temperature Limits: Ambient: 32 to 122°F (0 to 50°C); Dry Gases: 14 to
122°F (-10 to 50°C).
Power Supply: 12 VDC; ±15 VDC; 24 VDC.
Process Connections: 1/8 compression fitting for flow rates 10 L/min;
1/4 for 50 L/min; 3/8 for 100 L/min.
Pressure Limits: 200 psia (13.79 barA).
Leak Integrity: 1 x 10-9 smL/sec of helium.
Display: 128 x 64 graphic LCD with backlight.
Weight: 1 lb (.45 kg).
FEATURES
€ Multi-drop capability of up to 256 units (for RS-485 option).
€ Programmable 12 digit totalizer indicates total gas volume.
€ Flow alarm limits for high and low gas flow with relay output.
€ Pressure alarm limits for high and low gas pressure with relay output.
€ Four button keypad and large 128x64 graphical LCD with backlight.
€ Internal conversion factors for up to 32 gases.
€ Automatic zero adjustment.
€ Self diagnostic tests.
€ Free communication software available at www.dwyer-inst.com.
ACCESSORIES
A-110N12, 110 VAC Power Supply, 12 VDC Standard Interface
A-110N24, 110 VAC Power Supply, 24 VDC Standard Interface
A-110NA15, 110 VAC Power Supply, 15 VDC Standard Interface
5-1/4 [133.10]
6-3/4 [171.70]
2
[51.05]
GFM4-AIR-010-5-V-A-N-A-C-2
Gas Mass Flow Meter
Air 1.0000
Argon 1.4573
Acetylene 0.5829
Propane 0.3500
Butane 0.2631
Methane 0.7175
Carbon Monoxide 1.0000
Carbon Dioxide 0.7382
Hydrogen Fluoride 0.9998
Helium 1.4540
Hydrogen 1.0106
Nitrogen 1.0000
Ammonia 0.7310
Oxygen 0.9926
Sulfur Dioxide 0.6900
Low Flow
Medium Flow
High Flow
±15 VDC
12 VDC
24 VDC
Fluoroelastomer
Buna-N
EPR
PTFE
1/8 Compression (Low)
1/4 Compression (Medium)
3/8 Compression (High)
No Display
LED Display
0 to 5 VDC
4 to 20 mA
0 to 10 VDC
N.A/N.A
0 to 5 VDC/0 to 5 VDC
0 to 5 VDC/4 to 20 mA
0 to 5 VDC/0 to 10 VDC
4 to 20 mA/0 to 5 VDC
4 to 20 mA/4 to 20 mA
4 to 20 mA/0 to 10 VDC
0 to 10 VDC/0 to 5 VDC
0 to 10 VDC/4 to 20 mA
0 to 10 VDC/0 to 10 VDC
RS232
RS485
PROFIBUS
Note: Specify flow range at time of order
Flow Range Chart: See page 224 (Series GFM2)
Max Flow RangeChart(per body size for the given gases): See page 224 (Series GFM2)
226
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
227_Layout 1 7/8/14 11:43 AM Page 227
Series
GFC
Gas Mass Flow Controllers
Flow Range Up to 1000 L/min, Pressures Up to 500 psi, NIST Traceable
3
[76.20]
5-37/64
[141.86]
MASS
FLOW CONTROLLER
SERIES GFC
FLOW
1-3/4
[44.55]
1-1/8
[28.58]
3-9/16
[90.42]
5-31/32
[151.77]
Model GFC-1101 Thru GFC-1111
& GFC-2101 Thru GFC-2111
7 21/64 [186.18]
Model GFC-1130 Thru GFC-1133
& GFC-2130 Thru GFC-2133
6-32 2-11/16
[68.33]
3
3-11/64
[76.20]1.437
[80.65]
Process Connector
Flow Range Aluminum SS
Compression Fitting
0-10 mL/m
GFC-1101* GFC-2101* 1/4
0-20 mL/m
GFC-1102* GFC-2102* 1/4
0-50 mL/m
GFC-1103* GFC-2103* 1/4
0-100 mL/m
GFC-1104* GFC-2104* 1/4
0-200 mL/m
GFC-1105* GFC-2105* 1/4
0-500 mL/m
GFC-1106* GFC-2106* 1/4
0-1000 mL/m GFC-1107* GFC-2107* 1/4
0-2 L/min
GFC-1108* GFC-2108* 1/4
0-5 L/min
GFC-1109* GFC-2109* 1/4
0-15 L/min
GFC-1111*
0-30 L/min
GFC-1131* GFC-2131* 1/4
0-50 L/min
GFC-1133* GFC-2133* 1/4
0-100 L/min
GFC-1142* GFC-2142* 3/8
0-200 L/min
GFC-1143* GFC-2143* 3/8
0-500 L/min
GFC-1144* GFC-2144* 1/2
MASS
FLOW CONTROLLER
SERIES GFC
FLOW
1-17/64
[32.00]
7-19/64
[185.42]
3-1/8
[79.38]
1-17/64
[32.00]
Model GFC-1143 Thru GFC-1145
& GFC-2143 Thru GFC-2145
SPECIFICATIONS
Service: Clean gases compatible with wetted parts.
Wetted Materials:
GFC-1XXX: Anodized aluminum, brass, 316 SS and fluoroelastomer O-rings;
GFC-2XXX: 316 SS and fluoroelastomer O-rings.
Accuracy: ±1.5% FS including linearity over 59 to 77°F (5 to 25°C) and 5 to 60
psia (0.35 to 4 bar).
Repeatability: ±0.5% of full-scale.
Response Time: 2 s to within ±2% of actual flow.
Output: Linear 0 to 5 VDC and 4 to 20 mA.
Max. Particulate Size: 5 microns.
Temperature Limits: 32 to 122°F (0 to 50°C).
Power Supply: ±12 VDC.
Process Connections: 1/4 compression fitting for flow rates 50 L/m; 3/8 for
100 and 200 L/m; 1/2 for 500 L/min; 3/4 for 1000 L/min.
Pressure Limits: 500 psig (34.5 bar).
Leak Integrity: 1 x 10-7 sccs of helium.
Display: 90° tiltable, 3-1/2 digit.
Agency Approvals: CE.
ACCESSORIES
For Series GFC Gas Mass Flow Controllers
Model GFC-110P, 110V Power Supply
Model GFC-220PE, 220V Power Supply
Model GFC-CBL1, 8´ cable with 15-pin connector
Model GFC-CBL3, 3´ extension cable for LCD readout
GFC-2111* 1/4
0-1000 L/min GFC-1145* GFC-2145* 3/4
*Specified flow ranges are for an equivalent flow of nitrogen at
70°F (21°C) @ 760 mm Hg.
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
227
Mass Flowmeters/
Controllers
Model
Model GFC-1140 Thru
GFC-1142 & GFC-2140
Thru GFC-2142
FLOW
Series GFC Gas Mass Flow Controllers combine a straight tube sensor with a
restrictor flow element to provide high accuracy and repeatability. Gas mass flow
controllers utilize an electromagnetic valve and PID electronics to maintain continuous
control by comparing measured sensor signal set to flow rates. Setpoints can be adjusted
with local potentiometers or remotely via 0 to 5 VDC or 4 to 20 mA analog signal. Flow
rates are virtually unaffected by temperature and pressure variations. Actual gas flow is
displayed in engineering units on a 3-digit, 90° tiltable LCD readout.Units can be used with
Series GFT Flow Totalizer for applications requiring totalization. Series GFC includes a
NIST traceable certificate.
1-1/4
[31.75]
11/16
[17.53]
2 11/16
[68.33]
1-1/8
1-3/4 [28.58]
1-1/2
[44.55]
[38.10]
4-35/64
[115.57]
4
[101.60]
1-1/8
[28.58]
7 21/64 [186.18]
11/16
[17.53]
6-32
4
[101.60]
3-15/16
[99.95]
MASS
FLOW CONTROLLER
SERIES GFC
FLOW
1
[25.40]
6-19/64
[159.77]
1-3/4
[44.55]
3
[76.20]
228_Layout 1 7/8/14 11:43 AM Page 228
Model
TM2
Flow Totalizer
Pulse Input, 8-digit LCD Display
1-1/4
[28.58]
2-61/64
[75.18]
1-1/2
[38.89]
1-9/16
[40.09]
TR
RST
Recommended Panel Cutout: 2-43/64 [67.87] x 1-19/64 [32.94]
Monitor flow rate or total flow with Model TM2 Flow Totalizer. Unit features a four
digit flow rate display and an eight digit totalizing display with a programmable, five
position decimal point. Easily toggle between rate and total with front-panel push-button.
Use scaling factor to define flow rate in engineering units such as ml/min, l/min, or gal/hr.
Model TM2
FLOW
ACCESSORY
TM25, Replacement battery for Series TM2
Series
GFT2
SPECIFICATIONS
Input: 7.5 VDC max. pulse.
Accuracy: ±0.2%.
Input Impedance: 27 k at 3 VDC.
Totalizer Type: Up count.
Rate Indication Type: Frequency.
Count Input Speed: 10 kHz @ 50% duty cycle.
Totalizing Range: 0.0001 to 100.0000 (five position decimal point).
Rate Indication Range: 0.001 to 9999 (five position decimal point).
Update Time: 0.7 s.
Display: 8-digit LCD, 7/16 H.
Temperature Limits: 32 to 131°F (0 to 55°C).
Housing Material: ABS X-17.
Power Requirements: 3 V lithium metal battery, installed non-functional, user
replaceable.
Average Battery Life: Approximately 5 years.
Weight: 1 Ib (0.5 kg).
Agency Approvals: CE.
Flow Totalizer
Graphic LCD, Digital RS-232 or RS-485 Interface
Flowmeters,
Totalizers
GFT2
FLOW TOTALIZER
INPUT/OUTPUT
STATUS
3-13/32
[86.36]
9-PIN FEMALE
I/O PORT
47/64
[18.8]
The Series GFT2 Flow Totalizer is a microcontroller driven device designed to linearize
the flow meter and controller flow curve plus display the instantaneous flow rate, total,
and accumulated total. The totalizer is intended to be used with analog flow meters and
controllers with analog 0 to 5 VDC, 0 to 10 VDC, or 4 to 20 mA interface. RS-232 or RS485 digital interface is available.
FEATURES
€ Up to 47 different volumetric and mass flow engineering units (including userdefined)
€ User adjustable LCD back light and contrast level
€ Compact design for unit mount, panel mount, wall mount, or field mount
applications
€ Low and high flow alarms with programmable action delay
€ Free configuration and mounting utility software
€ 0.51 (13 mm) LCD digits for flow rate, and 0.21 (5.5 mm) digits for total
SPECIFICATIONS
Input Analog Range: 0 to 5 VDC, 0 to 10 VDC, or 4 to 20 mA.
Accuracy: ±0.1% FS.
Operating Temperature: 14 to 158°F (-10 to 70°C).
Power Supply: 12 to 26 VDC.
Weight: 0.3 lb (125 g).
Model
GFT2-05-RS232
GFT2-10-RS232
GFT2-15-RS232
GFT2-05-RS485
GFT2-10-RS485
GFT2-15-RS485
Model
GFT2-20C
A-645
A-646
228
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
3
[76.2]
Input
0 to 5 VDC
0 to 10 VDC
4 to 20 mA
0 to 5 VDC
0 to 10 VDC
4 to 20 mA
Serial
Communication
RS-232
RS-232
RS-232
RS-485
RS-485
RS-485
Description
Flow controller mounting kit, power supply
Flow controller mounting kit, no cables
Flow meter mounting kit, no cables
229_Layout 1 7/8/14 11:44 AM Page 229
Series
RTI
Rate/Total Indicator
Loop Powered, Converts Pulse Frequency to 4 to 20 mA, High/Low Flow Alarm
4-57/64 [124.31]
3-15/16
[99.93]
3-5/8
[92.08]
5
[126.92]
RTI-W
RTI-M
Shown installed on Series EFS2
*Meter sold separately
The Series RTI Rate/Total Indicator is an indicator/transmitter that takes the pulse
output signal from compatible flow meters, displays flow rate and total, and provides
output signals. It is compatible with the Series EFS2, IEFS, PDWS, TBS and FLMG. The
Series RTI can be mounted on either a wall or meter and has an additional panel mount
option. The RTI offers accessory mounting kits making it easy to change the mounting
orientation. It also features high environmental protection with semi-flexible urethane
potted electrical components.
RTI is powered by an external DC voltage and has a pulse and 4 to 20 mA output signal.
Additional options are temper-evidence, non-resettable total, dual relay output, and more.
The RTI is useful anywhere a compatible flow meter is used and flow rate and total are
desired.
APPLICATIONS
€ Water treatment
€ Water utility
€ Industrial chemical handling
RTI-M-DPS
Rate/Total Indicator, Loop-powered
Meter-mounted
Wall-mounted
Panel-mounted
Built-in 115 VAC/12-24 Dual Power Supply
(RTI-W only)
TEV
Tamper-Evident
NRT
Non-resettable Total
VPS
Built-in 115 VAC Power Supply (RTI-W only)
DRO
Dual Relay Output
HDC
Hinged Display Cover (not with DPS or VPS)
The RTI is a Rate/Total Indicator that uses the pulse output from the following
Dwyer flow meters series* and displays flow rate and total.
*Compatible Series: EFS2, IEFS, PDWS, PFT, TBS and FLMG.
2-5/32
[54.92]
3 [76.19]
SPECIFICATIONS
Input: 5 V pulse or contact closure; 1.0 to 1500 pulses/s.
Temperature Limits: -22 to 148°F (-30 to 65°C).
Output:
Current Sinking Square Wave Pulse:
Scaled pulse output (0.1 s duration
6.1 Hz max. or high alarm output or
low alarm output), sensor passthrough pulse output (un-scaled);
Pulse Output Range: 0.1 to
9999999.9 units/pulse;
Analog: 4 to 20 mA, 24 to 30 VDC.
Power Requirements: 12 to 30 VDC @ 4 mA (4 to 20 mA when loop-powered).
Display: Rate: 6 digits, 1/2 H LCD; Total: 8 digits, 5/16 character height.
K-Factor Range: 0.001 to 99999.999.
Flow Alarm Output Range: 0.01 to 999999.99.
Enclosure MaterialHousing: Die-cast powder-coated aluminum; Faceplate
#HP92W Lexan.
Enclosure Rating: NEMA 4X (IP66).
Electrical Connection: Terminal blocks, #22 AWG, 3 conductor 18´ (5.5 m) cable
(2000´ max.).
Mounting: See model chart.
Weight: 3 lb (1361 g).
Stocked Model
RTI-W
Description
Wall-mounted, rate/total indicator, loop powered
MMK, Meter Mounting Kit
WMK, Wall Mounting Kit
Flowmeters,
Totalizers
Blind Analog Transmitter
Converts Pulse Frequency to 4 to 20 mA, Loop Powered
4-15/16 [125.44]
3-5/8
[92.08]
5
[126.92]
BAT-M shown installed on Series
EFS2 meter. Meter sold separately.
BAT-W
The Series BAT Blind Analog Transmitter is a non-indicating, 4 to 20 mA transmitter
for use with the Series EFS2, IEFS, PDWS, TBS and FLMG. The BAT is easy to set up
and can be either wall or meter mounted. It takes a pulse frequency output from the
compatible flow meters and converts it into a continuous 4 to 20 mA analog output signal.
The frequency for the flowmeter output signal can be adjusted using four rotary switches
on the back of the transmitter and a microcontroller automatically scales all other values
accordingly. The microcontroller is also able to average inputs for more stable reading
outputs. The rate for averaging is adjustable and ranges from 2 to 16 seconds. Power for
the BAT is supplied by a current loop, making only 2 wires necessary. This unit features
high environmental protection with semi-flexible urethane potted electrical components.
APPLICATIONS
€ Telemetry
€ Data logging
€ Distributed control systems
€ Programmable controller
€ Chart recording
Model
Description
BAT-M
Blind Analog Transmitter, Meter-Mounted*
BAT-W
Blind Analog Transmitter, Wall-Mounted
*Compatible Series:EFS2, IEFS, PDWS, TBS and FLMG.
FLOW
Example RTI M DPS
RTI
Series
M
Mounting
W
P
DPS
Options
Series
BAT
3-15/16
[99.82]
RTI-P
3-15/16
[100.02]
3 [76.19]
PHONE
219-878-8000
FAX
219-872-99057
WEB
WWW.DWYER-INST.COM
MADE IN XXXXXX
3-7/8 [98.57]
2-5/32
[54.92]
SPECIFICATIONS
Input: Open-collector solid state sensor. Averaging: 2, 4, 8, 16 s (DIP switch
selectable); Pulse Frequency: Min. 10 Hz @ 20 mA; Max. 999.9 Hz (rotary DIP
switch selectable).
Temperature Limits: 32 to 130°F (0 to 55°C).
Output: 4 to 20 mA.
Power Requirements: 24 to 36 VDC @ 4 to 20 mA when loop powered.
Response Time: 2 to 60 s; 90% FS (depends on input averaging).
Loop Resistance: 0 to 1300 max.
Enclosure Material: Die-cast powder-coated aluminum.
Enclosure Rating: NEMA 4X (IP66).
Electrical Connections: Terminal block.
Mounting: See model chart.
Weight: 3 lb (1361 g).
MMK, Meter Mounting Kit
WMK, Wall Mounting Kit
Loop Resistance:See Bulletin F-BAT
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
229
230_Layout 1 7/8/14 11:46 AM Page 230
Series
FPCA
Flow Power/Controls Accessories
Power Supplies & Mounting Options for Series BAT, RTI, PWD, IPFS, TBS, FLMG,
PDWS, EFS2, IEFS, IPFS
4-15/16 [125.23]
1-15/16
[49.02]
2-13/64
[55.88]
PWC1
PWC2
4-15/16
[125.22]
3-15/64
[82.04]
2-59/64
[74.17]
3/4
[18.93]
2X 1-1/4
[31.69]
Description
Wall to Meter Mounting Kit
Meter to Wall Mounting Kit
Power Converter, Plug-in, 115 VAC, 24 VDC
Dual Power Supply, Plug-in, 115 VAC, 12/24 VDC
Model
SPK
FLOW
Flowmeters,
Accessories
PWC2
MMK
The Series FPCA Flow Power Control Accessories include mounting kits, power
converters, and power supplies for compatible flow meters. These accessories simplify
installation by offering meter and wall mounting options. Furthermore, power input and
supply are no longer an issue with the power converter and dual power supply. The WMK
can be used to mount Series BAT, RTI, or PWD on Series PDWS. The MMK can be used
to mount either Series BAT or RTI to a wall with the use of Series EFS2, IEFS, PDWS,
IPFS, TBS, or FLMG. Model PWC1 can be used with Series PDW, EFS2, or IEFS to
convert 115 VAC to 25 VDC. Model PWC2 can be used with Series EFS2, IEFS, PDWS,
IPFS, and TBS to convert 115 VAC to 12/24 VDC and provide dual power output for use
with Series BAT and RTI.
Model
WMK
MMK
PWC1
PWC2
FAX
219-872-9057
MADE IN: XXXXX
PWC1
WMK
PHONE
219-878-8000
WEB
WWW.DWYER-INST.COM
SPECIFICATIONS
WMK/MMK
Temperature Limits: -22 to 148°F (-30 to 65°C).
Enclosure Material: Die-cast powder-coated aluminum.
Weight:
WMK: 1.25 lb (567 g);
MMK: 1.75 lb (794 g).
PWC1/PWC2
Temperature Limits: 32 to 140°F (0 to 60°C).
Output: 24 VDC @ 500 mA.
Power Requirements: 120 VAC, 60 Hz, 19 W.
Electrical Connection: 22-18 AWG screw terminal.
Weight: Contact factory.
Solar Panel Kit
Reliable 5 Watt Solar Panel for Remote Applications or Back-Up Power
1
13-7/8
8-7/8
The Model SPK Solar Panel makes it possible to use Dwyer flowmeters in remote
applications where a reliable source of electricity is not available or practical. The SPK is
intended for use with a standard 12 V, 22 to 33 amp-hour sealed lead acid battery (not
included). It comes standard with a charge controller and corrosion-resistant mounting
hardware. The SPK can also be used to provide up to a 40-day back-up power supply for
periods of darkness.
APPLICATIONS
€ Remote metering applications where electricity is unavailable.
€ Back-up power supply for uninterrupted operation.
Model SPK, Solar Panel Kit
230
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com
SPECIFICATIONS
Temperature Limits: -40 to 158°F (-40 to 70°C).
Output: 17 V @ 290 mA.
Change Controller: High efficiency PWM regulator with temperature
compensation and built-in lightning protection.
Mounting: Bracket, band clamps and mounting hardware for 1-1/2 to 2 vertical
pipe included.
Weight: 4 lb (1814 g).
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