Turbine Flowmeter for Liquid Applications

Turbine Flowmeter for Liquid Applications
FT Series
Turbine Flowmeters for Liquid Applications (Metric)
Description
Flow Technology’s FT Series turbine flowmeters utilize a
proven flow measurement technology to provide exceptionally reliable digital outputs. Because of their versatility,
these flowmeters are the solution for a wide variety of liquid flow sensing applications. FT Series turbine
flowmeters, which range in size from 3/8 inch to 4 inches,
offer a high turn-down capability, repeatability of ±0.05% of
reading, and excellent speed of response.
The precision, axial-mounted rotor design of the standard
turbine flowmeter allows it to operate effectively in flow
rates from 0.11 to 5,677 LPM, with the linearity rated at
±0.5% of reading over the normal 10:1 turn-down range.
All turbine flowmeters can achieve ±0.1% linearity over the
full operating range with linearizing electronics. Typical
operating pressures for the standard meters are 349 BarG
with custom configurations capable of 2,068 BarG.
A choice of construction materials can be specified for the
turbine flowmeter’s housing, rotor, bearings and shaft,
including standard stainless steel, and exotic materials for
specialized applications.
Features
•
•
•
•
•
•
•
•
•
•
•
Linearity < 0.10% with linearizing electronics
High turn-down capability, up to 100:1.
Excellent repeatability, less than +/- 0.05%.
Typical response time 3-4mS
Extensive primary standard NIST traceable calibration
capability, offering a wide range of fluids, viscosities
and flow rates. Accuracy less than +/-0.05% typical
Standard materials of construction are 316 SS housing and 430F SS rotor. Additional materials available.
Robust, compact design capably of compliance to
severe shock and vibration requirements.
Standard pressure capabilities up to 349 BarG.
Extreme operating pressures available in custom
packages.
High shock designs available for applications with
large hydraulic water hammer effects.
Custom designs to meet the specific application are
routine, not the exception.
FT Series Meters
Specifications
Calibration accuracy
±0.05% of reading, traceable to
NIST
Repeatability
±0.05% of reading
Linearity
±0.10% with linearizing electronics
Response time
3-4mS typical
Housing material
316 stainless steel, standard
Rotor material
430F stainless steel, standard
Temperature range
-268 to 399°C, dependent on bearing and pick-off
Operating pressure
Up to 2,068 BarG, dependent on
fitting
Ball bearing material
440C stainless steel
Journal bearing material Ceramic, tungsten carbide,
graphite
Pick-off’s
Modulated carrier and magnetic
Straight Run
10D upstream and 5D downstream
minimum
Recommended filtration Ball bearings: 10 to 100 microns
(less filtration with larger sizes)
Journal bearings: 75 to 100
microns
Turbine Flow Meter Model Number
Selection and Sizing Guidelines
FT Series
Pick-off Options
• Standard pick-offs have upper operating temperature of
177˚C.
• High temperature pick-offs with a 399˚C maximum are
available.
• Most electronics are available in hazardous area rated
enclosures. If system certification is required, pick-offs
are available with various ratings.
• Pick-offs are available with built in RTD’s when real
time temperature correction is required and a UVC calibration is performed on the flow meter. These pick-offs
are normally used in conjunction with the Linear Link
TCI electronics.
• Amplified pick-offs are available that house circuitry in
the pick-off body to provide a high level 0 – 5 volt
square wave pulse output. DC power is required.
• See page 6 for pick-off selection options.
There are 4 major steps in defining a turbine flow meter;
these are:
• Choosing the flow meter size
• Bearing selection
• Pick-off selection
• Calibration requirements
These components are interrelated and should be considered as a system to obtain optimum meter performance.
Additional options need to be selected that are related
more to personal preference. These are end fitting type,
materials of construction, and units of measure.
Step 1: Meter size and flow range selection
Detailed below are the considerations that should be
taken into account when sizing a flow meter.
• Due to the laws of physics, for optimum results any flow
meter (including turbine flow meters) should be operated as high up in their turndown range as possible.
• Clearly, there is a tradeoff between your allowable pressure drop and the size of meter that you can install into
your process. In other words, at a given flow rate, a
smaller meter will operate higher up in its flow rate
range, but will generate a higher pressure drop.
• When selecting the size and flow range of the meter,
bearing and pick-off selection must be considered. Ball
bearings and RF pick-offs have the least amount of drag,
thus provide the widest capable flow range. Journal
bearings and magnetic pick-offs create more drag, there
fore reducing the turndown capability of the flow meter.
Where ever possible an RF pickoff is the ideal choice.
• Ideally, it is beneficial to stay within a 10:1 turndown
range. However, the phenomenal repeatability and primary calibration accuracy’s enable the Flow Technology
turbine to provide outstanding performance over a 100:1
turndown.
• See page 4 for available flow ranges.
Pick-off Mounting Configuration
MS connector
• Pick-offs have two, three or four pin MS connectors.
• Connection to the pick-off is via a mating MS connector
with soldered connections and loose wire.
• Typical installation is on test stands or on board applications.
• A junction box or conduit can not be attached to this
pick-off style.
• This pick-off is used on flow meters that do not have 1”
MNPT nipples welded to the meter body surrounding
the pick-off. Flow meters with threaded end connections
typically do not have the 1” nipple.
Flying leads with threaded connection
• Pick-offs have flying leads extending from the potted
pick-off body.
• Mechanical connection to the pick-off is via a ½” MNPT
thread integral to the top of the pick-off body or the 1”
MNPT thread of the flow meter nipple.
• This pick-of style is required when a junction box and
rigid or flexible conduit is to be mounted directly to the
pick-off body.
• Typical installation is a more industrial environment.
• This threaded body pick-off is used on flow meters that
do not have 1” MNPT nipples welded to the meter body
surrounding the pick-off. A flying lead pick-off with
smooth body are used on flow meters that do have the
1” MNPT nipple. Flow meters with threaded end connections typically do not have the 1” nipple. Flow
meters with flanged end connections typically do have
the 1” nipple.
Step 2: Pickoff Selection
Reasons to choose a RF pickoff
• Use on FT-24 and smaller meters.
• Use when extended flow range is required.
• Use when real time temperature correction (UVC calibration) is required.
• Flow meter does not require recalibration when pick-off
is changed.
• Must be used in conjunction with an amplifier to produce
a square wave frequency output.
• Can not be used above an FT-40 size flow meter.
Reasons to choose a Magnetic pickoff
• Use on FT-32 and larger meters.
• Use on cryogenic temperature applications.
• Use when a direct millivolt output is required.
• Flow meter should be recalibrated when pick-off is
changed.
• Can be used on smaller flow meters with reduced flow
range.
2
Step 3: Bearing Selection
FT Series
Step 4: Calibration Selection
• Bearings are available in two styles, Ball and Journal
Sleeve.
• Ball bearings are manufactured from 440C SS and is the
typical choice for lubricating applications.
• Journal Sleeve bearings are available in three different
material selections. (Note: The Journal Ceramic bearing
is the typical bearing of choice for non-lubricating appli
cations.)
• See page 5 for bearing selection options.
• Flow Technology has one of the world’s largest liquid
and gas primary calibration facilities.
• The ability to accurately calibrate a flow meter with trace
ability to international standards is one of the fundamental requirements in any flow metering application.
• Flow Technology offers a range of water, solvent, oil, and
oil blend calibrations.
• A 10 data point calibration is offered as standard, 20 and
30 point calibrations are offered as options. A higher
number of data points will define the calibration curve in
more detail. If linearizing electronics will be used a mini
mum of a 20 point calibration is recommended.
• Viscosity does shift the flow meter calibration curve and
should be compensated for.
Ball bearings (model # code “A”)
• Bearing option to measure lubricating fluids.
• Low frictional drag provides the widest possible flow
range.
• Ball bearing set can be replaced in the field.
• 10 to 50 micron filtration required, dependent on meter
size.
• Operating temperature range of -266˚ to 149˚ C.
• 440C stainless steel materials of construction.
• Provides exceptional life and rugged construction in
clean lubricating applications.
Application will be at relatively constant temperature
and viscosity
• For optimum performance your flow meter should be calibrated close to its operating viscosity. Water at 1 cst and
solvent at 1.2 cst viscosity is standard, a specific calibration to simulate the operating viscosity can be specified
as an option.
Journal Carbide bearings (model # code “D”)
• Bearing option to measure low or non-lubricating fluids.
• Hard bearing material provides long life and rugged construction.
• Less turn down capability than the ball bearing. (valid for
all journal bearing options)
• Field replacement of bearing not recommended. (valid
for all journal bearing options)
• 75 to 100 micron filtration required. (valid for all journal
bearing options)
• Operating temperature range of -73˚ to 648˚ C.
• Tungsten Carbide materials of construction.
• Hard bearing material provides long life and rugged con
struction.
Application will cover a range of operating temperature and viscosity
• If the fluid viscosity or density is changing due to temperature variation, a Universal Viscosity Calibration (UVC)
should be used to perform real time temperature correction.
• The viscosity range for the calibration is determined by
the minimum fluid viscosity at the maximum operating
temperature and the maximum fluid viscosity at the minimum operating temperature.
• See page 5 for calibration options.
Journal Graphite bearings (model # code “E”)
• Bearing option for corrosive applications.
• Operating temperature range of -73˚ to 288˚ C.
• Bearing option to measure low or non-lubricating fluids.
• Materials of construction are epoxy impregnated Carbon
Graphite bearing with 316 SS shaft.
• Lubricating property of the graphite allows this bearing to
run smoother than the other two journal options, however life of the bearing will be slightly reduced.
• Not recommended for use above FT-32 meter size.
Journal Ceramic bearings (model # code “G”)
• Typical bearing option to measure low or non-lubricating
fluids.
• Operating temperature range of -73˚ to 427˚ C.
• Typical bearing option for more corrosive applications.
• AL2O3 (99.5%) Ceramic materials of construction.
• Ceramic material is impervious to most fluids, resists film
build up on bearing surface, long life, not as robust as
tungsten carbide material.
• Not recommended for use in water above 82˚ C.
3
FT Series
FT Meter Sizing and End Fittings
Extended Flow Range
End Fitting
Nominal
Inches
ID
(mm)
FT 4-6
3/8
7.6
FT 6-8
1/2
9.4
Series /
Order Code
FT 4-8
1/2
FT 8-8
1/2
FT -08
1/2
FT-16
1
22
FT-20
11/4
FT-32
2
FT-24
11/2
FT-40
21/2
FT-64
4
FT-48
3
0.95
9.5
9.5
2.8
11
13
3/4
Max LPM
1.9
10
* 3/4
FT-12
Min LPM
0.95
7.6
FT-10
4.7
14
25
44
190
57
570
151
1510
98
473
4730
0.38
0.60
0.76
0.76
1.1
1.8
3.7
3.8
5.6
6.0
3.8
9.4
9.5
13
17
9.5
19
N/A
28
N/A
N/A
57
56
94
3.8
227
9.5
605
378
946
19
1700
57
5677
28
N/A
2838
2000
2000
2100
2000
3170
2000
2540
2000
1580
2000
635
2000
345
1950
160
1500
92
1300
48
1200
20
812
8
625
End Fittings
HB
Hose Barb - 13 to 51 mm
NPT external threads - 1/2" to 4 nominal size
Wafer type - serrated surface - 13 to 76 mm nominal size
150# Raised Face Flange
300# Raised Face Flange
600# Raised Face Flange
C4
900# Raised Face Flange
C5
1500# Raised Face Flange
C6
2500# Raised Face Flange
D1
DIN Flange PN16
D2
DIN Flange PN40
D3
DIN Flange PN100
D4
DIN Flange PN160
D5
DIN Flange PN250
D6
x
38
Frequ.
4200
AN (or MS) external straight threads - 3/8" to 2 1/2 nominal size - 37° flare
C3
x
1.1
30
Maximum
Frequency
Approx.
12680
AE
C2
x
6600
11
13
17
P/L
19
5.7
6.0
LPM
0.76
1.9
3.8
K Factor
12680
1.5
1.9
Max
11
0.95
0.95
1.1
2.3
0.45
0.57
Order Code
C1
Meter Size
0.45
0.95
2460
WF
x
0.38
0.38
0.45
0.57
850
NE
T
0.38
0.30
340
246
0.11
0.38
56
73
Min LPM
38
19
85
Min LPM
0.19
76
34
34
Min LPM
19
47
7.6
Min LPM
0.11
28
3.8
* AE fitting = 5/8”
F
Ball
Ball
Journal
Journal
Bearing /
Bearing
Bearing /
Bearing /
RF Pickoff Mag Pickoff RF Pickoff Mag Pickoff
10:1 Standard Range
DIN Flange PN400
x
End Fittings
Part Number Structure
x
x
x
Calibration
4
L
x
x
Material Bearing
x
Pickoff
x
x
x
x
Optional Designators
FT Series
Calibration
Order Code
# Points
Flow Range
NW
10 point
normal 10:1 range
in water
NB
10 point
normal 10:1 range
in oil blend
NS
10 point
XW
10 point
XS
10 point
XB
10 point
TW
20 point
TS
20 point
TB
20 point
YW
20 point
YS
20 point
YB
20 point
GW
30 point
GS
30 point
GB
30 point
normal 10:1 range
extended range
extended range
Order Code
Fluid
U2
in solvent
in water
U3
in solvent
extended range
normal 10:1 range
normal 10:1 range
normal 10:1 range
extended range
extended range
in oil blend
Order Code
in water
BW
in solvent
in oil blend
BS
in water
in solvent
extended range
BB
in oil blend
extended range
in water
extended range
# Points
extended range
in oil blend
Universal
10 points each
Viscosity
viscosity
Curve
Universal
10 points each
Viscosity
viscosity
Curve
3 Viscosities (specify minimum
viscosity & maximum viscosity).
10 points each
1 pickoff
direction
Bi-directional
water
Bi-directional
solvent
Bi-directional
oil blend
# Points
# Pickoffs
10 points each
1 pickoff
direction
10 points each
1 pickoff
direction
Order Code
To signify required units of measure other than
GPM
B
To signify both changes in units and special flow
range.
Meter Size
x
x
x
x
End Fittings
x
Bearing Code
A-D-E-G-H
N
HAST C
HAST C
E-G
316 SST
316 SST
316 SST
17-4 PH SST
D-E-G
A-D-E-G-H
Note: Please contact factory for material codes “G”
and “N”.
Bearing Selection
Bearing selections will affect flow range.
Order
Refer to sizing specification table to the left
Code
for correct flow ranges.
A
Ball Bearings (440 C)
D
Carbide Journal (Carbide Shaft & Sleeve)
G
Part Number Structure
Rotor
430F SST
To signify special calibration flow range other
than normal 10:1 or extended range
x
Fluid
316 SST
The third digit of the calibration designator is
normally not used and occupied by a dash (-).
When required , the following codes are used.
U
Housing
E
T
Cal Style
E
G
H
3rd Digit of Calibration
F
2 Viscosities (specify minimum
viscosity & maximumviscosity).
Material & Bearing Selection
vided with oil blend calibrations
R
# Viscosities
in solvent
Note: W = Water. S = Solvent. B = Oil blend. The fluid viscosity must be pro-
Code
Cal Style
-
x
Calibration
5
L
x
x
Material Bearing
Graphite Journal (Graphite Sleeve, 316
SST Shaft)
Ceramic Journal (Ceramic Shaft & Sleeve)
x
Pickoff
x
x
x
x
Optional Designators
FT Series
Magnetic and RF Pickoff Selection Selection
Order Code
-1
-5
-L
-M
-8
-9
-Y
T1
T5
-X
SS
XX
F
MS connector
Order Code
RF (Modulated Carrier)
-2
MS connector
-6
MS connector, 400° C max
-3
Flying leads/threaded connection
MS connector, 400° C max.
T2
RTD, MS connector
PP
I.S. approved, flying leads/threaded body
Meter Size
I.S. approved, MS connector
I.S. approved, flying leads/smooth body
I.S. approved, flying leads/threaded body
Notes: 1. Maximum temperature rating of pick-offs are 177˚ C unless
otherwise noted.
2. See Amplified Link literature for amplified pick-off codes.
I.S. approved, flying leads/smooth body
x
RTD, flying leads/threaded connection
TT
I.S. approved, MS connector
x
RTD, MS connector
-U
RTD, flying leads/threaded connection
x
CSA X-Proof
T3
CSA X-Proof
x
Flying leads/threaded connection 400° C max.
-Z
MS connector, 330 µH coil
MS connector, 5/8"–18 thread, 1mH coil
T
Flying leads/threaded connection
-7
Flying leads/threaded connection 400° C max.
Magnetic
x
End Fittings
Dimensional Drawings
MS / NPT Fitting
Part Number Structure
x
x
x
Calibration
L
x
x
Material Bearing
x
Pickoff
Flange Fittings
x
x
x
x
Optional Designators
Hose Barb Fitting
J
N
Series
FT4-6
FT--8
FT-10
FT-12
FT-16
A
300#
25
FT-_8
127
89
127
35
FT-12
140
99
140
69
83
90
FT-32
154
FT-48
N/A
FT-64
150#
A
B
mm
mm
62
62
103
FT-40
Series
mm
FT-20
FT-24
B
mm
117
226
N/A
25
35
41
48
57
70
89
N/A
N/A
FT-10
FT-16
FT-20
FT-24
FT-32
FT-40
FT-48
FT-64
140
99
140
108
152
127
178
178
152
165
254
305
118
152
191
229
A
mm
B
mm
140
118
140
124
152
156
152
165
178
254
305
A
mm
95
127
118
140
133
165
191
210
254
600#
B
mm
121
118
178
130
140
124
152
156
229
254
305
B
mm
178
118
165
900#
95
140
152
A
mm
133
165
191
210
273
140
203
203
229
229
229
254
305
Note: Contact factory for DIN dimensions
130
149
159
178
216
241
241
292
Series
M
mm
N
mm
62.2
12.7
14.7
FT-10
69.1
15.5
17.8
FT--8
FT-12
FT-16
62.2
82.6
90.4
FT-20
103.1
FT-32
153.9
FT-48
244.0
FT-24
FT-40
FT-64
Tel: (480) 240-3400 • Fax: (480) 240-3401 • Toll Free: 1-800-528-4225
Trademarks are the property of their respective companies.
J
mm
FT4-6
8930 S. Beck Avenue, Suite 107, Tempe, Arizona 85284 USA
E-mail: [email protected] • Web: www.ftimeters.com
M
DB 68347 Rev C © 2007 FTI Flow Technology, Inc. Printed in USA
116.6
157.2
N/A
12.7
19.1
25.4
31.8
38.1
50.8
64.0
76.0
N/A
14.7
21.1
28.5
34.8
41.7
54.9
68.0
81.0
N/A
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