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Pressure Regulating Valves
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A-31, A-31S
Small Pressure Regulating Valves for Water, Air, Light Oil
Applications:
Drinking fountains, bubblers, water coolers, humidifiers, beverage
dispensers, spraypaint rigs, air tools, etc. For water, air, light oil.
Sizes: 1/8", 1/4", 3/8"
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).
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Technical Information A Series
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A-31 HC
Pressure Regulating Valve For Mobile Homes
Applications:
Mobile homes and recreational trailers.
Sizes: 3/8" only
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.
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Technical Information A Series
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A-360, A-361, A-362
Small Commercial Pressure Regulating Valves
Applications:
Recommended for regulating the floe of air, oils, gases and all
non-corrosive fluids. Not for use on steam.
Sizes: 1/4", 3/8", 1/2" (A-362 1/4" and
3/8" only)
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).
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" NPT; cast bronze body.
Type A-362 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.
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Technical Information A Series
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B Pressure Regulating Valve
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", 1", 11/4", 11/2",
2" on NPT or BSPP Threads.
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 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. TeflonŽ Seat available for temperatures to 350° maximum on steam.
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Technical Information B Series
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B-95
Pressure Reducing or Pressure Build Regulating Valve
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", 1" in NPT or BSPP Threads.
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 metal-to-metal, TeflonŽ 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.
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Technical Information B Series
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BBC
Pressure Regulating Valve For Heavy Oil
Applications:
Intended for Heavy Oil Service (Bunker C and other grades), dirty liquids,
high viscosity fluids.
Sizes: 3/8", 1/2", 3/4", 1", 11/4",
11/2"
Features:
Direct acting, single seat, spring loaded diaphragm. Maintains lower pressure
within reasonably close limits.
Iron or bronze bodies, threaded connections, MonelŽ 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.
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Technical Information B Series
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BCA
Pressure Regulating Valve For Ammonia
Applications:
Gas or Liquid Ammonia Service.
Sizes: 3/8", 1/2", 3/4", 1", 11/4",
11/2"
Features:
Direct acting, single seated, spring loaded diaphragm. Maintains lower
pressure within reasonably close limits. Cast in gray iron. Threaded
connections, MonelŽ diaphragm, stainless steel piston, seat, pusher post
button, iron bottom plug. Piston seat and body seat are easily renewable.
Rustproof steel bolting. maximum initial pressure, 200 psi; maximum reduced
pressure, 125 psi.
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Technical Information B Series
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E-55
High Capacity Pressure Regulating Valve
Applications:
All types of water systems; various pneumatic, cryogenic and hydraulic
systems, etc.
Sizes: 1/2", 3/4", 1", 11/4", 11/2",
2" in NPT and BSPT threads.
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).
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Technical Information E Series
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G-4
Pilot Operated Pressure Reducing Valve
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
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 TFEŽ seats are
used. Also may be modified for oxygen gas service.
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Technical Information G Series
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G-60
High Capacity Pressure Regulating Valve
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", 1",
11/4", 11/2"
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.
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Technical Information G Series
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LS
Series High Pressure Regulating Valve
Applications:
Designed for use on air, water, light oil, oxygen, carbon dioxide and other
gases and fluids.
Sizes: 3/8", 1/2", 3/4"
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.
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Technical Information LS Series
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Cryogenic
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A Word About Cryogenics...
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.
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.
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Technical Information Cryogenic Valves
Technical Information Cryogenic
Controls
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Back Pressure Valves
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DR-A
Low Pressure Back Pressure Valve
Applications:
For service on air, water, oil and other non-corrosive liquids and gases.
Sizes: 1/2", 3/4", 1", 11/4"
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.
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FR, FR-6, FR-10
0 to 600 psi Back Pressure Valves
Applications:
Centrifugal, regenerative turbine, reciprocating or rotary pump bypass valve.
Protects pump systems from over pressure.
Sizes: 1/2", 3/4", 1", 11/4", 11/2",
2"
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.
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Technical Information FR Series
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FRM, FRM-2
Small Back Pressure Valves
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" FRM
1/4", 3/8", 1/2" 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.
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Technical Information FR Series
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K-5, K-5C
Angle Back Pressure Valves
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"
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.
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Technical Information K Series
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K-10
Piston Type Back Pressure Valve
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"
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).
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Technical Information K Series
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K-15
High Pressure, Angle By-pass Valve
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 treatmentdesalination) and car
washes.
Sizes: 1/4", 3/8", 1/2", 3/4"
Features:
Angle type by-pass valve handles high pressure up to 1500 psi in brass body.
Threaded connections. Maximum temperature 450°F (232°C).
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Technical Information K Series
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KP
Pilot Operated Back Pressure Valve
Applications:
Suitable for air or water service.
Sizes: 1", 11/4", 11/2", 2"
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.
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Technical Information KP Series
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MC
Small By-pass Valve
Applications:
For water, oil, and other fluids.
Sizes: 1/2", 3/4", 1"
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.
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NSW
Adjustable Angle By-pass Valve
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.
Size: 1/2" only
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.
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CP & CP2
Compressor Pilot Valve
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.
Size: 1/4"
Features:
Bronze body, bronze trim, with stainless steel seat ring and disc. Maximum
Controlled pressure of 400 psig.
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Temperature Regulating
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TA
Temperature Regulating Valve
Applications:
Designed for use in installations where a certain temperature must be
maintained in heating or cooling fluids.
Sizes:
1/2", 3/4", 1", 11/4", 11/2", 2"
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, TeflonŽ 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.
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Technical Information TA Series
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Vacuum
Valves
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A-31VR
Small Vacuum Regulating Valve
Applications:
Suitable for surgical equipment, lab or manufacturing processes, and other
applications requiring accurate and sensitive vacuum regulation at low flows.
Size: 1/4" only
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.
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Technical Information A Series
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FRM-V
Vacuum Breaker Valve
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"
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.
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Technical Information FRM Series
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Control
Valves
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D-51, D-52 Vacuum Regulating or Breaker Valves
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"
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.
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Technical Information Control Valves
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