cash_acme_d_53
CASH VALVE
PRESSURE REGULATING AND
BACK PRESSURE VALVES OVERVIEW
ISSUED 2007 REVISED NOVEMBER 2012
I ISO 9001 CERTIFIED
CASH VALVE
PRESSURE REGULATING AND BACK
PRESSURE VALVES OVERVIEW
Contents
Pressure Regulating Valves
A-31, A31S, A-360, A-361, A-365. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B, B-95 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BBC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E-55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G-60, LS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
4
5
5
6
7
Cryogenic Valves and Controls
A Word About Cryogenics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
Back Pressure Valves
DR-A, FR, FR-6, FR-10, FRM, FRM-2. . . . . . . . . . . . . . . . . . . . . . . . . .
9
K-5, K-5C, K-10, K-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
KP, MC, NSW, CP, CP2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
Temperature Regulating Valves
TA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
Vacuum Valves
A Word About Vacuum Measurement. . . . . . . . . . . . . . . . . . . . . . . . .
13
A-31VR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13
D-51, D-52, FRM-V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14
Miscellaneous Control Valves
D-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
Global Performance
Cash Valve is a leading manufacturer of
Pressure Regulating and Back Pressure
Valves offering products for Steam,
Air/Gas, Liquid, and Cryogenic
applications.
Our products range in size from 1/8" to 2"
for threaded NPTF* connections and up
through 6 inches for flanged
configurations.
Cash Valve offers a wide selection of
pressure reductions with initial inlets of
720 psi and reductions from 1 to 400 psi.
Temperatures range between cryogenic
up through 800°F.
Materials of construction are offered
with Iron, Brass, Bronze, Carbon and
Stainless Steel depending on your
application and diaphragms of various
elastomers and metal configurations.
* NPTF, also referred to as "Dryseal" thread, is
designed to provide a more leak-free seal
without the use of Teflon tape or other sealant
compound. NPTF are interchangeable with NPT
and are standard on all Cash Valve products.
CAVMC-0507-US
I 2
Pressure Regulating Valves
Small Pressure Regulating Valves For Water, Air, Light Oil
Model:
A-31 and A-31S
Features:
Reduces high pressure to lower outlet pressure within close
limits. Good for inlet pressures up to 300 psi. Maximum
temperature 180°F [82°C].
Applications:
Drinking fountains, bubblers, water coolers, humidifiers,
beverage dispensers, spray paint rigs, air tools, etc. For water,
air, light oil.
Sizes:
1/8", 1/4", 3/8"
Options:
Forged brass body. Reduced pressure ranges from 2 to 180 psi.
Available with composition seat, BUNA-N, in two or three way
valve bodies, side inlet and outlet, and side gauge connection
(A-31S). Fillister or hex head adjusting screw standard; also
available with wing lock nut or T-handle. Can be furnished with
balanced Piston design.
Request data sheet: CAVMC-0508.
Pressure Regulating Valve For Mobile Homes
Model:
A-31HC
Features:
This modified regulator is specially designed for mobile homes
and recreational trailer installations where space limitations are
important and relatively low capacity is required.
Applications:
Mobile homes and recreational trailers.
Sizes:
3/ 8"
Options:
Standard brass hose connections and washers for connections to
trailer and to water supply. Standard reduced pressure setting is
45 psi; for maximum temperature of 180°F [82°C]. See Type A-31
for further details.
only
Request data sheet: CAVMC-0508.
Small Commercial Pressure Regulating Valves
Model:
A-360, A-361, A-365
Features:
Recommended for regulating the flow of air, oils, gases and all
non-corrosive fluids. Not for use on steam.
Sizes:
1/4", 3/8", 1/2"
Features:
The A-360 and A-361 incorporate an aspirating action to give
exceptionally good regulation at high flow rates. Maximum initial
pressure, 400 psi. Maximum delivery pressure, 175 psi.
Maximum temperature, 180°F [82°C].
(A-365 1/4" and 3/8" only)
Type A-361
Type A-360 has one inlet and one outlet; furnished with forged
brass body.
Type A-361 is designed for 3-way or 4-way use. One inlet, three
outlets. Gauge tappings 1/4" NPTF; cast bronze body.
Type A-365 is a special modification of the A-360 for pressures
up to 1,100 psi inlet, to 250 psi outlet. Sizes 1/4" and 3/8" only.
Options:
Can be furnished with T-handle adjusting screw or handwheel,
or tamper-proof seal cap.
Request data sheet: CAVMC-0508.
Type A-360, 365
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CAVMC-0507-US
Pressure Regulating Valves
Pressure Regulating Valve
Model:
B
Features:
Automatically maintains, within close limits, the desired reduced
pressure in the service line. Threaded connections.
Iron body valves are for initial pressures up to 200 psi on water,
air, oil, or other liquids and gases, and for initial pressures up to
150 psi on steam. Maximum delivery pressure in all cases is 125
psi. Bronze body valves are for initial pressures up to 400 psi on
water, air, oil, etc. and for pressures up to 250 psi on steam.
Maximum delivery pressure 150 psi. Teflon® Seat available for
temperatures to 350° maximum on steam.
Applications:
Water, air, light oil: spray equipment, dishwashers, air tanks,
food, chemical and industrial process lines.
Steam: unit heater, pressing irons, steam cookers, degreasers,
sterilizers, vulcanizers.
Sizes:
1/4", 3/8", 1/2", 3/4",
Options:
Self-contained, easily cleaned strainer; large area diaphragm,
renewable and readily accessible working parts; self-cleaning
seat. Available with T-handle or handwheel. Can be modified to
be used as a cryogenic control valve for liquid or gas service. See
CAVMC-0514. Can be furnished with tapped spring chamber for
differential and dome loaded applications.
1", 11/4", 11/2", 2" on NPTF or BSPP Threads
Request data sheet: CAVMC-0509.
Pressure Regulating Valve
Model:
B-95
Features:
Automatically maintains, within close limits, the desired reduced
pressure in the service line. Threaded connections.
Investment cast carbon steel and stainless steel bodies,
chambers and bottom plug, with stainless steel trim and
a choice of Teflon® or BUNA-N-seating.
Initial pressure up to 720 psig, reduced pressures up
to 400 psig and the operating temperature range is
-320°F to +450°F depending on the trim options.
Applications:
Suitable for almost any service. Water, air, light oil, steam:
suitable for chemical, food, pulp & paper industry, utility lines,
and specialist OEM applications. Cryogenic: suitable for liquid or
gas phase in the pressure build circuit of cryogenic storage
tanks.
Sizes:
1/2", 3/4",
Options:
Self contained, easily cleaned strainer, large area diaphragm,
renewable and readily accessible working parts; self cleaning
seat; stainless laminated diaphragms and can be furnished for
differential and dome loaded use with a tapped spring chamber
and a sealed closing cap over the adjusting screw.
1" in NPTF or BSPP Threads.
Request data sheet: CAVMC-0509.
CAVMC-0507-US
I 4
Pressure Regulating Valves
Pressure Regulating Valve For Heavy Oil
Model:
BBC
Features:
Direct acting, single seat, spring loaded diaphragm. Maintains
lower pressure within reasonably close limits.
Iron or bronze bodies, threaded connections, Monel® or BUNA-N
diaphragm. Stainless steel piston and seat, both of which are
renewable. Standard valve equipped with square head adjusting
screw. Maximum initial pressure in iron, 200 psi; maximum
reduced pressure, 125 psi. In bronze, maximum initial pressure,
400 psi; maximum reduced pressure, 200 psi.
Applications:
Intended for Heavy Oil Service (Bunker
C and other grades), dirty liquids, high viscosity fluids.
Sizes:
3/8", 1/2", 3/4",
Options:
T-handle or handwheel also available.
1", 11/4", 11/2"
Request data sheet: CAVMC-0509.
High Capacity Pressure Regulating Valve
Model:
E-55
Features:
Aspirated design for close pressure control. Handles high and
variable flow rates well beyond the limitations of ordinary
regulators. Bronze body with stainless steel body seat. Brass
built in strainer is easily removed for cleaning. Maximum initial
pressure, 400 psi. Delivery pressure: maximum 300 psi;
minimum 25 psi. Maximum temperature 180°F [82°C].
Applications:
All types of water systems; various pneumatic, cryogenic and
hydraulic systems, etc.
Sizes:
1/2", 3/4",
Options:
Can be modified to be used as a cryogenic control valve for liquid
or gas service. See CAVMC-0514.
1", 11/4", 11/2", 2" in NPTF and BSPT threads.
Request data sheet: CAVMC-0510.
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CAVMC-0507-US
Pilot Operated Relief Valve
Pilot Operated Pressure Reducing Valve
Model:
G-4
Features:
Self actuated pilot operated pressure reducing valve providing
very high capacity with less <1 psi fall-off. It is very compact in
design, offers positive shut off and is available in iron, bronze,
cast and stainless steel for pressures up to 600 psi inlet,
between 1 and 300 psi outlet and temperatures up to 800°F.
Stainless steel seats are used for steam and where a tighter
shut off is required for air and gases BUNA-N and TFE® seats
are used. Also may be modified for oxygen gas service.
Applications:
Steam heating lines, dryers, ovens, sterilizers, oil heaters, steam
jacketed equipment etc. and any other steam, air
and gaseous application.
Sizes:
1/2", 3/4", 1", 11/4", 11/2", 2" threaded
21/2", 3", 4", 5", 6" CL125 flange
1/2", 3/4", 1", 11/4", 11/2", 2", 21/2", 3", 4", 5", 6" CL150 and CL300
flanges
Minimum Pressure Differential
The pressure differential is the difference between
the inlet pressure and outlet (reduced) pressure.
The minimum allowable pressure differential varies
depending upon both the inlet pressure and the
size of the valves
Valve
Size
- 2"
10-50
50-120
120 plus
5
10
15
21/2" - 4"
10-50
50 plus
10
15
5" - 6"
Refer to
sales office
Refer to
sales office
1/2"
Material
Description
ASTM Spec.
Cast Iron
Bronze
A126 Class B
B62 Alloy 836
Inlet Pressure Minimum Pressure
Range (psig)
Differential (psig)
Pressure Temperature Ratings
End Connection
ANSI Class
CL125 (Iron)
Pressure (psig)
0 to 250F 300F 400F 450F 500F 750F
150F
200
175
160
135
125
—
CL150 (Bronze)
225
195
180
150
—
—
—
—
CL300 (Bronze)
500
425
390
300
—
—
—
—
CL250 (Bronze Threaded) 400
365
300
250
—
—
CL150 (Steel)
285
245
230
195
185
170
*
740
660
655
630
615
590
500
600
530
525
500
490
470
460
Carbon and
A216 GR WCB
CL300 (Steel)
Stainless Steel A351 CF* (304)
CL250 (Steel Threaded)
* 570F for 150 psig
CAVMC-0507-US
I 6
Pressure Regulating Valves
High Capacity Pressure Regulating Valve
Model:
G-60
Features:
Self-contained, self actuated, threaded connections. Produces
exceptional control with high capacity. Its design offers a wide
range of adjustment and exceptional sensitivity of control.
Applications:
Dryers, steam atomizing oil burners, plastic molding, cookers,
degreasers, sterilizers. Also, liquid or gas cryogenic service.
Sizes:
1/4", 3/8", 1/2", 3/4",
Options:
Can be furnished with internal trim suitable for regulating
steam, air, water, oils, gases, chemicals, and other fluids. A
slightly modified G-60 is offered as a constant differential control
valve or dome loaded valve. Available in Iron, Bronze, Carbon
Steel or Stainless Steel. Can be modified to be used
as a cryogenic control valve for liquid or gas service. See
CAVMC-0514.
1", 11/4", 11/2"
Request data sheet: CAVMC-0511
Pressure and Temperature Ratings
Maximum
Inlet
Temperature
Body
Pressure
°F [°C]
400
180° [82°]
Iron
250
410° [210°]
400
180° [82°]
Bronze
300
500° [260°]
450
750° [399°]
Carbon Steel
or St. Steel
720
180° [82°]
High Pressure Regulating Valve
Model:
LS
Features:
Single seated, spring loaded, direct acting diaphragm type
regulator. Maintains reduced pressure within reasonably
close limits regardless of inlet fluctuations. Maximum initial
pressure up to 2,400 psi. Delivery pressure: maximum, 500 psi;
minimum, 40 psi.
Bronze body, spring chamber and bottom plug; stainless steel
piston/piston assemblies, cylinders, seat ring and strainer
screens; BUNA-N diaphragm and O-rings. Self-renewable seat
ring may be flipped over and reinstalled rather than replaced.
Applications:
Designed for use on air, water, light oil, oxygen, carbon dioxide
and other gases and fluids.
Sizes:
3/8", 1/2", 3/4"
Options:
Up to 750 psi maximum delivery pressure with internal
modification. Three versions of the valve are as follows:
LS-1 is furnished with a metal seat piston and cylinder
particularly designed for high or low temperature and high
pressure drop applications.
LS-2 is furnished with a Teflon® seat and balanced piston
design for applications requiring higher capacities and/or tight
shut-off. The balanced design assures close control regardless
of inlet pressure fluctuations.
LS-3 is furnished with a modified cylinder and no strainer screen for
applications involving heavy or high viscosity fluids.
LS-4 is furnished with construction for cryogenic service on
liquid or gas.
Request data sheet: CAVMC-0513.
7
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CAVMC-0507-US
Cryogenic Valves and Controls
Cryogenics – the science of materials at extremely low temperatures – has become
more and more important to industry. One important aspect of this field is the
liquification of normally gaseous elements, including the following, which are widely
used throughout industry:
Oxygen - Used extensively in BOF furnaces in the steel industry, for metal
cutting, as a rocket fuel and in medicine.
Acetylene -Widely used in welding.
Nitrogen -Used in refrigeration systems, for metal degassing, in aerosol
packaging and in cryogenic surgery.
Hydrogen - Used as a rocket propellant and in the production of several metals.
Argon - Widely used in incandescent lamps and fluorescent tubes.
C-776 Safety
Relief Valve
Helium - Used for arc welding, in the manufacture of electron tubes and in
cryogenic research.
Carbon Dioxide - Used in refrigeration, to make aerosol tanks and in fire
fighting.
Other cryogenic fluids include liquefied natural gas, fluorine, krypton, neon, methane
and ethane.
Cash Valve has an extensive line of cryogenic valves and controls. Includes pressure
reducing valves, pressure build-up regulators, back pressure valves, economizer valves,
combination valves, low temperature cut-off valves, safety relief valves, shut-off
valves, final line regulators, strainers and high purity valves. Full specifications of
construction, dimensions and available pressure ranges are contained in separate
Data Sheets.
Request data sheet: CAVMC-0514 and CAVMC-0515.
Contact Factory For Additional Information on Shutoff and Combination Valves.
PBE-1 Valve
Liquid-Gas Distribution System Schematic Diagram
G
Vaporizer Inlet Valve
Safety
Valve
Rupture
Disc
Vapor
Plugged Opening
Annular Space
Safety Relief
Vent Valve
Full Trycock Valve
Vaporizer
Liquid
Check
Valve
Vapor Press
Vapor
Vacuum Gage
Connection
Bottom Fill Valve
Fill
Line
PBE-2 Valve
Combination Pressure
Builder/Economizer Valves
Top Line
Valve
Check
Valve
Fill Line Drain
Liquid
Liquid Line
Safety
Valve
Economizer
Back Pressure
Regulator
Liquid
Level
Gage
Equalizer
Liquid
Pressure
Head
Vacuum Pump
Connection
A
Safety
Valve
E
Pressure
Build-up
Regulator
C
F
Safety
Valve
Temperature
Control Valve
Service Line
Pressure
Strainer
By-pass
Pressure
Build-up Coil
Liquid Draw
To Customer
Liquid Withdrawl Valve
B
Press Build-up
Coil Inlet Valve
A. Cash Valve Type SY-70C
B. Cash Valve Type B
C. Cash Valve Type A-32
Service Line Regulator
Liquid
Vapor
H
D. Cash Valve Type E-55
E. Cash Valve Type LTC
F. Cash Valve Type FR
D
Plugged
Opening
G. Cash Valve Type C-776
H. Cash Valve Shut-off Valves
(Contact your sales
representative for availability)
CAVMC-0507-US
I 8
Back Pressure Valves
Low Pressure Back Pressure Valve
Model:
DR-A
Features:
Controls up to 25 psi. Automatically maintains desired pressure in a
line or system by discharging excess pressure to the atmosphere or
to a lower pressure system. All bronze, neoprene-nylon diaphragm,
composition disc, sensitive adjusting spring. On installation, a “T” is
placed in the inlet line and a sensing connection is run from it to the
top of the valve.
Applications:
For service on air, water, oil and other non-corrosive liquids and
gases.
Sizes:
1/2", 3/4",
Options:
Can be furnished to control down to 1 psi on the inlet.
1", 11/4"
Back Pressure Valves
Model:
FR, FR-6, FR-10
Features:
Protects against periodic high pressures; maintains a desired inlet
pressure by relieving to a lower variable pressure, or to atmosphere.
Relieves dependably at adjusted pressures; shuts tight after relieving.
Features unique “Floating Ring” seating arrangement that produces
perfect seat contact. The FR valves afford unusually close regulation,
repeatability of opening pressure and close reseating pressures. The
FR-10 is for more economical, lower pressure applications – maximum
pressure setting 250 psi. (Provided with iron body and spring housing
only). Type FR is available in iron, bronze, steel or stainless steel body;
threaded connections; monel, stainless steel or BUNA-N diaphragm.
Pressure settings from 0 to 400 psi. The FR-6 is available for 200 to
600 psi.
Applications:
Centrifugal, regenerative turbine, reciprocating or rotary pump
bypass valve. Protects pump systems from over pressure.
Sizes:
1/2", 3/4",
Options:
Can be used with two side inlets, bottom outlet, or angle type with
side inlet, bottom outlet. And can be furnished for differential and
dome loaded applications.
1", 11/4", 11/2", 2"
Request data sheet: CAVMC-0516.
Compact Back Pressure Valves
Model:
FRM, FRM-2
Features:
Automatically maintains a constant inlet or back pressure.
Functions as a pressure limiting regulator, not as a safety device.
Bronze body, stainless steel seat ring and disc.
Applications:
For service on liquids, air and gases not corrosive to brass.
Recommended for bypass regulation on fuel oil systems,
compressor governor pilot control, and many small to medium
pumping system bypass jobs. Ideally suited for many applications in
the cryogenic field.
Sizes:
1/8", 1/4", 3/8"
1/4", 3/8", 1/2"
Options:
Furnished with either neoprene diaphragm (max. temp. 180°F
[82°C]) or metal diaphragms (max. temp. 500°F [255°C]), in three
body styles: side inlet, side outlet; side inlet, bottom outlet; and two
side inlets, one bottom outlet. Available with stainless steel wetted
parts. FRM maximum control pressure of 175 psi, FRM-2 maximum
control pressure of 250 psi (may be modified for higher pressures to
600 psi).
9
FRM
FRM-2
Request data sheet: CAVMC-0516.
I
CAVMC-0507-US
Back Pressure Valves
Angle Back Pressure Valves
Model:
K-5, K-5C
Features:
High-capacity valves. For flow up to 200 gallons per minute in
the larger sizes. Bronze body and trim, threaded connections,
bottom and side female connections, brass spring chamber,
stainless steel adjusting spring, high temperature gaskets. K-5
has a metal seat. K-5C has a soft seat for tight shut-off. Relief
pressures range from 5 to 150 psi.
Applications:
Suitable for pump systems of all kinds.
Applicable on water, other fluids and especially oils of all
grades.
Sizes:
1", 11/4", 11/2", 2"
Request data sheet: CAVMC-0517.
Piston Type Back Pressure Valve
Model:
K-10
Features:
Bronze angle body, stainless steel trim, threaded connections,
single metal-to-metal seat only, bottom female inlet, side
female outlet. Relief pressure ranges from 15 to 600 psi.
Maximum temperature is 450°F [232°C].
Applications:
For water, other liquids, and light fuel oils. Not for steam.
Designed to limit a specific pump discharge pressure on
machine tool hydraulic systems, oil burning equipment, rams,
presses, lifts, etc.
Sizes:
1/4", 3/8", 1/2", 3/4",
1", 11/4"
Request data sheet: CAVMC-0517
High Pressure, Angle By-pass Valve
Model:
K-15
Features:
Angle type by-pass valve handles high pressure up to 1500 psi in
brass body. Threaded connections. Maximum temperature 450°F
[232°C].
Applications:
Suited for by-pass applications on high pressure pumps or any
system requiring automatic regulation of pump discharge
pressure. Many applications in the chemical and process field
(waste treatment-desalination) and car washes.
Sizes:
1/4", 3/8", 1/2", 3/4"
Options:
Employs a replaceable stainless steel seat and piston for longer
valve life at minimal cost. Does not have to be removed from the
line for servicing.
Request data sheet: CAVMC-0517.
CAVMC-0507-US
I 10
Back Pressure Valves
Pilot Operated Back Pressure Valve
Model:
KP
Features:
Offers high-capacity, extremely accurate control. Main valve
features brass construction, BUNA-N diaphragm and seat disc,
stainless steel spring. Pilot is brass with stainless steel spring,
seat disc and seat ring; bronze diaphragms for air service or
neoprene diaphragms for water. Pressure setting 15 to 200 psi.
Applications:
Suitable for various gases or water service.
Sizes:
1", 11/4", 11/2", 2"
Options:
Available with modifications for high temperature (to 400°F
[204°C]), high pressure (to 400 psi).
Request data sheet: CAVMC-0518.
Small By-pass Valve
Model:
MC
Features:
Small, economical bypass valve for pressure control of a
less-critical nature. Bronze body, stainless steel ball seat.
Metal-to-metal seat – does not close off drip tight. Leak-proof
cover cap and gasket. Male inlet, female side outlet. Pressure
ranges 10 to 250 psi.
Applications:
For water, oil, and other fluids.
Sizes:
1/2", 3/4",
1"
Adjustable Angle By-pass Valve
Model:
NSW
Features:
Bronze body, BUNA-N disc and stainless steel spring. One of
three pressure springs is used, providing an adjustable range of
10 to 60 lbs., 0 to 125 lbs., or 20 to 200 lbs. Male inlet, female
outlet.
Applications:
An inexpensive solution to installations requiring frequent
changes in the set point. Designed for bypass and overpressure
protection in pumping systems such as weed sprayers, etc. that
are non-corrosive to bronze.
Sizes:
1/ 2"
only
Compressor Pilot Valve
Model:
CP and CP2
Features:
Bronze body, bronze trim, with stainless steel seat ring and disc.
Maximum Controlled pressure of 400 psig.
Applications:
Types CP and CP-2 are used as pilot valves in Rotary Screw
Compressors to control receiver pressure or compressor
discharge pressure. The Pilot Valves provide a regulated output
pressure that increases on a desired ratio to provide input
pressure to the air intake valve. Benefits of the Types CP and
CP-2 are savings in energy, quieter Compressor operation, and
reduced wear.
Sizes:
1/ 4"
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CAVMC-0507-US
Temperature Regulating Valves
Temperature Regulating Valve
Model:
TA
Features:
Bronze body with union ends, direct or reverse acting, stainless
steel trim. Also available as a 3-way valve for diverting or mixing
applications. Brass thermal systems standard. Stainless steel,
Teflon® or PVC coated thermal system available as special
option. Temperature ranges from -15°F [-25°C] to 415°F
[252°C]. As temperature rises in the bulb, liquid in the bulb
vaporizes and transmits power through the tubing to a bellows
in the control valve. Heating or cooling fluid passing through the
valve is thus modulated to maintain a desired temperature in the
process being controlled.
Applications:
Designed for use in installations where a certain temperature
must be maintained in heating or cooling fluids.
Sizes:
1/2", 3/4",
Options:
Different bulb sizes available.
1", 11/4", 11/2", 2"
Request data sheet: CAVMC-0519.
Valve
Model
TA-1
TA-2
TA-3
TA-4
TA-5
Specifications
Direct Acting, Single Seat, Indicating
Reverse Acting, Single Seat, Indicating
3-Way, Single Seat, Indicating
Direct Acting, Double Seat, Indicating
Reverse Acting, Double Seat, Indicating
Controlling Storage Heater
Hot Water Outlet
Relief Valve
Thermostatic Bulb
Storage Heater
Cold
Water
Inlet
Drain and Blow-off
Cash Valve
Type TA-1, 4,
Thermostatic
Temperature
Regulator
Vacuum
Breaker
Steam Inlet
To Thermostatic Trap
CAVMC-0507-US
I 12
Vacuum Valves
Vacuum is simply pressure below atmospheric pressure, or in a sense a “negative
pressure.” It is measured in terms of inches of mercury (Abbreviated - Hg, as in 21"
Hg), in terms of absolute pressure (psia) or in terms of inches of water column. Below
are some simple conversion figures which at times may be useful.
Inches of Water
Inches of Mercury
Inches of Mercury
Inches of Water
Pounds Per Square Inch
Pounds Per Square Inch
Columns of Mercury
at 0°C
psi
kg/cm2
ATM.
inches
millimeters
1.00
14.22
14.70
0.4912
0.01934
0.03609
0.4331
1.421
0.07031
1.00
1.033
0.03453
0.001360
0.002538
0.03045
0.09901
0.06804
0.9678
1.00
0.03342
0.001316
0.002456
0.02947
0.09901
2.036
28.96
29.92
1.00
0.03937
0.07349
0.8819
2.893
51.71
735.5
760.0
25.40
1.00
1.367
22.40
73.49
Scale C
Columns of Water
at 15°C
inches
feet
meters
27.70
2.309
0.7037
394.1
32.84
10.01
407.1
33.93
10.34
13.61
1.134
0.3456
0.5357 0.04464 0.01361
1.00
0.08333 0.0254
12.00
1.00
0.3048
1.00
39.37
3.281
Feet Head-Water
0
10
0
5
20
30
10
40
15
50
20
60
psi
25
70
80
30
35
90
40
100
110
45
Small Vacuum Regulating Valve
Model:
A-31VR
Features:
Furnished in forged brass, with neoprene seat and diaphragm.
Two adjustable ranges of 2" to 16" and 10" to 30" mercury
vacuum. All connections are 1/4" IPS. Standard valve is plain
brass. Closely controls low capacity vacuum systems. The
vacuum source is connected to the bottom of the valve, one side
connection is for a gauge, the other side connects to the system
in which vacuum is to be controlled. The sensitive top screw
automatically adjusts the vacuum source to maintain the
desired vacuum in the system.
Applications:
Suitable for surgical equipment, lab or manufacturing
processes, and other applications requiring accurate and
sensitive vacuum regulation at low flows.
Sizes:
1/ 4"
only
Cut Sheet on A-31VR provided for your reference.
13
I
CAVMC-0507-US
psia
Pressure Conversion Figures
Scale B
To Obtain:
By:
27.686
2.036
0.07355
13.596
0.03613
0.4912
psia
Multiply:
Pounds Per Square Inch
Pounds Per Square Inch
Inches of Water
Inches of Mercury
Inches of Water
Inches of Mercury
Atmos.
Vacuum
in. Mercury
Vacuum Conversion Figures
Scale A
Absolute
To convert pounds per square inch
gauge (psig) or pressure below
atmosphere (vacuum, inches of
mercury) to absolute pressure, read
horizontally from A to B. Conversely, to
convert absolute pressure to psig or
inches of mercury, read from B to A.
Vacuum Regulating or Breaker Valves
Model:
D-51, D-52
Features:
Fully adjustable and furnished with bronze bodies, threaded
connections and internal parts, neoprene-nylon diaphragms,
stainless steel body seats and composition discs. Two ranges –
2" to 30" mercury.
Applications:
Designed for use where a predetermined vacuum is to be
accurately maintained in a closed system (D-51 Vacuum
Regulator) or by automatically admitting atmosphere when the
vacuum level exceeds the valve setting (D-52 Vacuum Breaker).
Sizes:
1/2", 3/4",
1", 11/4", 11/2", 2"
Cut Sheet provided for your reference.
Vacuum Breaker Valves
Model:
FRM-V
Features:
Features full adjustability by means of a top adjusting screw.
The adjusting screw is turned clockwise for a higher setting and
counterclockwise for a lower setting. Forged brass body,
stainless steel valve seat and valve disc, stainless steel or
rust-proofed steel pressure spring, and neoprene or phosphor
bronze diaphragms. Adjustable spring range 2" to 30" mercury
vacuum.
Applications:
A small sized vacuum breaker for controlling vacuum in a system
by admitting atmosphere when the vacuum level exceeds the
valve setting.
Sizes:
1/8", 1/4", 3/8"
Cut Sheet provided for your reference..
Miscellaneous Control Valve
Two Position Control Valve
Model:
D-53
Features:
All bronze, with renewable stainless steel valve seat of full port
diameter, renewable composition seat disc, neoprene-nylon
diaphragm. Rust-proof steel bolting. Full port diameter means
full capacity and low pressure drop through the valve. For
maximum hook-up flexibility, diaphragm pressure connection
may be indexed to any of four positions: over inlet, over outlet, or
either side. Maximum body pressure 250 psi; diaphragm
pressure 300 psi. Maximum temperature 180°F [82°C].
Applications:
Cooling water control valve for water cooled air compressors, air
compressor dump valve, explosive atmosphere valve, substitute
for expensive electric solenoids. Available normally open or
normally closed.
Sizes:
1/2", 3/4", 1", 11/4", 11/2", 2" - threaded connections (top
connection 1/8" for 1/2" and 3/4" body sizes; all other sizes have
1/4" top connection).
Options:
Numerous options for OEM applications.
Request data sheet: Write or Call For: CAVMC-0520.
CAVMC-0507-US
I 14
5500 WAYZATA BLVD # 800, MINNEAPOLIS, MN 55416 WWW.PENTAIR.COM/VALVES
CASH VALVE, 953 OLD U.S. HIGHWAY 70, BLACK MOUNTAIN, NC 28711, PHONE: 800-879-2042
All Pentair trademarks and logos are owned by Pentair, Inc. All other brand or product names are trademarks or
registered marks of their respective owners.
Because we are continuously improving our products and services, Pentair reserves the right to change specifications
without prior notice.
Pentair is an equal opportunity employer.
CAVMC-0507-US-1211 © 2012 Pentair, Ltd. All Rights Reserved
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