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Pressure-Regulating Valves for Water, Oil, Air, and Inert Gas


Diaphragm And
Gauge Port


Diaphragm
And Gauge Port
- For Use With: Water, Oil, Air, Inert Gas
- Temperature Range: 32° to 180° F
These valves automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range.
Valves with a neoprene diaphragm have higher flow rates than valves with a Buna-N diaphragm.
Internal strainers trap debris.
Gauge ports let you attach a pressure gauge to monitor outlet pressure.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | |||||||
---|---|---|---|---|---|---|---|---|
Pipe Size | Location | Max. Pressure, psi | Pipe Size | Location | End-to-End Lg. | Choose an Outlet Pressure Range, psi | Each | |
Valve | ||||||||
NPT Female | ||||||||
Brass Body—Buna-N Diaphragm and Seal with Internal Strainer | ||||||||
1/4 | Side | 250 | 1/4 | Side | 2 1/4" | 0000000 | 0000000 | |
3/8 | Side | 250 | 3/8 | Side | 2 1/4" | 0000000 | 000000 | |
Brass Body—Neoprene Diaphragm and Buna-N Seal | ||||||||
1/4 | Side | 400 | 1/4 | Side | 2 1/2" | 0000000 | 000000 | |
3/8 | Side | 400 | 3/8 | Side | 2 1/2" | 0000000 | 000000 | |
1/2 | Side | 400 | 1/2 | Side | 2 7/8" | 0000000 | 000000 | |
Valve with 1/4 NPT Gauge Port | ||||||||
NPT Female | ||||||||
Brass Body—Buna-N Diaphragm and Seal with Internal Strainer | ||||||||
1/4 | Side | 250 | 1/4 | Side | 2 1/4" | 0000000 | 000000 | |
3/8 | Side | 250 | 3/8 | Side | 2 1/4" | 0000000 | 000000 | |
Brass Body—Neoprene Diaphragm and Buna-N Seal | ||||||||
1/4 | Side | 400 | 1/4 | Side | 2 1/2" | 0000000 | 000000 | |
3/8 | Side | 400 | 3/8 | Side | 2 1/2" | 0000000 | 000000 | |
1/2 | Side | 400 | 1/2 | Side | 2 7/8" | 0000000 | 000000 |
Pressure-Regulating Valves with Garden Hose Fittings for Water


- For Use With: Water
- Temperature Range: 33° to 140° F
Use this valve to automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure in light duty water systems with garden hose thread (GHT) connections. Adjust the outlet pressure within the range. Valve comes with a pressure gauge for monitoring outlet pressure.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Hose Size | Location | Max. Pressure, psi | Hose Size | Location | Pressure Range, psi | Gauge Port Thread Type | Gauge Port Gender | Gauge Port Pipe Size | End-to-End Lg. | Each | |
GHT Female | |||||||||||
Brass Body—Buna-N Diaphragm and Buna-N Coated Nylon Seal | |||||||||||
3/4 | Side | 150 | 3/4 | Side | 10 to 60 | __ | __ | __ | 3" | 0000000 | 0000000 |
3/4 | Side | 150 | 3/4 | Side | 10 to 60 | NPT | Female | 1/8 | 3" | 0000000 | 000000 |
Low-Pressure-Regulating Valves for Water

- For Use With: Water
- Temperature Range: 0° to 120° F
Designed for excellent performance at low pressures, these valves respond to even the slightest inlet pressure changes to maintain a lower, stable outlet pressure. Adjust the outlet pressure within the range. Valves have an internal strainer to trap debris.
For technical drawings and 3-D models, click on a part number.
Cleaned and Bagged Pressure-Regulating Valves for Air and Inert Gas

- For Use With: Nitrogen, Oxygen, Argon, Helium, Neon
- Temperature Range: -40° to 165° F
Often used for oxygen service and other high-purity applications, these valves are cleaned and bagged to meet CGA G-4.1 standards to prevent contamination. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Valves have two gauge ports. They are no-bleed style, so they keep process gases contained in the valve.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | Gauge Port | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Location | Max. Pressure, psi | Pipe Size | Location | Pipe Size | Location | End-to-End Lg. | Choose an Outlet Pressure Range, psi | Each | |
NPT Female | ||||||||||
Brass Body—Buna-N Diaphragm and Fluoroelastomer Seal | ||||||||||
1/2 | Side | 500 | 1/2 | Side | 1/4 | Side | 2 13/16" | 00000000 | 0000000 | |
3/4 | Side | 500 | 3/4 | Side | 1/4 | Side | 3 5/16" | 00000000 | 000000 | |
1 | Side | 500 | 1 | Side | 1/4 | Side | 3 5/16" | 00000000 | 000000 |
Compact Pressure-Regulating Valves for Water


- For Use With: Water
- Temperature Range: 33° to 140° F
A low-profile body fits in systems where space is at a premium. Often used to regulate the water supply to small tanks, these valves automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. All valves have a gauge port.
Pressure gauges let you monitor outlet pressure.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | Gauge Port | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Location | Max. Pressure, psi | Pipe Size | Location | Pipe Size | Location | End-to-End Lg. | Choose an Outlet Pressure Range, psi | Each | |
Valve | ||||||||||
NPT Female | ||||||||||
Brass Body—Buna-N Diaphragm and Seal | ||||||||||
1/8 | Side | 300 | 1/8 | Side | 1/8 | Side | 1 1/2" | 0000000 | 0000000 | |
1/4 | Side | 300 | 1/4 | Side | 1/8 | Side | 1 1/2" | 0000000 | 000000 | |
Valve with Pressure Gauge | ||||||||||
NPT Female | ||||||||||
Brass Body—Buna-N Diaphragm and Seal | ||||||||||
1/8 | Side | 300 | 1/8 | Side | 1/8 | Side | 1 1/2" | 0000000 | 000000 | |
1/4 | Side | 300 | 1/4 | Side | 1/8 | Side | 1 1/2" | 0000000 | 000000 |
Panel-Mount High-Pressure-Regulating Valves for Air and Inert Gas

- For Use With: Air, Nitrogen, Argon, Helium
- Temperature Range: -40° to 165° F
Withstand inlet pressures up to 3,500 psi. These valves automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Valves have threads below the adjustment knob and come with a panel-mount nut. All have two gauge ports. An internal strainer traps debris.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | Gauge Port | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Location | Max. Pressure, psi | Pipe Size | Location | Pipe Size | Location | End-to-End Lg. | Panel Cutout Dia. | Specifications Met | Choose an Outlet Pressure Range, psi | Each | |
NPT Female | ||||||||||||
Brass Body—316 Stainless Steel Diaphragm and PTFE Seal | ||||||||||||
1/4 | Side | 3,500 | 1/4 | Side | 1/4 | Side | 2" | 1 3/8" | ASME B31.3 | 0000000 | 0000000 |
Panel-Mount Ultra-High-Pressure-Regulating Valves for Air and Inert Gas

- For Use With: Air, Nitrogen, Argon, Helium
- Temperature Range: -40° to 165° F
These valves are rated for inlet pressures up to 6,000 psi. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Threads below the adjustment knob and an included mounting bracket let you install these valves in instrument panels. They have two gauge ports. An internal strainer traps debris.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | Gauge Port | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Location | Max. Pressure, psi | Pipe Size | Location | Pipe Size | Location | End-to-End Lg. | Panel Cutout Dia. | Specifications Met | Choose an Outlet Pressure Range, psi | Each | |
NPT Female | ||||||||||||
Brass Body—Polyimide Seal | ||||||||||||
1/4 | Side | 6,000 | 1/4 | Side | 1/4 | Side | 2 1/8" | 2 1/4" | ASME B31.3 | 0000000 | 000000000 |
Miniature Panel-Mount Pressure-Regulating Valves for Water, Air, and Inert Gas

- For Use With: Water, Air, Inert Gas
- Temperature Range: 32° to 180° F
Our smallest pressure-regulating valve automatically reduces a high, variable inlet pressure to a lower, stable outlet pressure in tight spaces where other valves can't fit. Adjust the outlet pressure within the range. Valve has threads below the adjustment screw and comes with a panel-mount nut. Body is nickel-plated brass for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | ||||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Location | Max. Pressure, psi | Thread Size | Location | Pressure Range, psi | Port-to-Port Lg. | Panel Cutout Dia. | Each | |
UNF Female | |||||||||
Nickel-Plated Brass Body—Buna-N Seal | |||||||||
10-32 | Bottom | 80 | 10-32 | Side | 5 to 80 | 3/8" | 1/2" | 0000000 | 000000 |
Pressure-Regulating Valves for Cryogenic Liquids

- For Use With: Liquid Argon, Liquid Carbon Dioxide, Liquid Nitrogen, Liquid Oxygen
- Temperature Range: -320° to 150° F
These valves can withstand the extreme cold of liquid argon, liquid carbon dioxide, liquid nitrogen, and liquid oxygen. All are cleaned and bagged for oxygen service and other high-purity applications. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range.
For technical drawings and 3-D models, click on a part number.
Fast-Acting Threaded On/Off Valves
Push a button or flip a toggle switch to start or stop flow. Often used in testing and sampling, these valves are useful when you need to dispense a small amount of liquid.
Push-button valves automatically open or close when you take your finger off the button. They’re ideal for intermittent use and applications where you want to monitor flow closely to avoid spills. The button is colored to make it easy to tell different valves apart. Normally open valves close when you push their button. Normally closed valves open when you push their button.
Valves with an exhaust port release extra air or liquid when they close. When these valves open, the exhaust port closes.
Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.
For technical drawings and 3-D models, click on a part number.

with Compact
Push Button

with Mushroom
Push Button
- Valve Type: Stem
- For Use With: See table
- Seal Material: Buna-N Rubber
Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Port-to-Port Lg. | Features | For Use With | Push-Button Color | Each | |
Compact Push Button | |||||||||
---|---|---|---|---|---|---|---|---|---|
Normally Open | |||||||||
NPT Female × NPT Female | |||||||||
1/8 | 0.47 | 150 psi @ 180° F | 35° to 230° | 9/16" | Exhaust Port | Air | Black | 0000000 | 000000 |
Normally Closed | |||||||||
NPT Female × NPT Female | |||||||||
1/8 | 0.47 | 300 psi @ 180° F | 35° to 230° | 9/16" | Exhaust Port | Air | Black | 0000000 | 00000 |
Mushroom Push Button | |||||||||
Normally Open | |||||||||
NPT Female × NPT Female | |||||||||
1/8 | 0.47 | 150 psi @ 180° F | 35° to 230° | 9/16" | Exhaust Port | Air | Black | 0000000 | 00000 |
Normally Closed | |||||||||
NPT Female × NPT Female | |||||||||
1/8 | 0.47 | 300 psi @ 180° F | 35° to 230° | 9/16" | Exhaust Port | Air | Black | 0000000 | 00000 |