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

- For Use With: Water, Oil, Air, Inert Gas
- Temperature Range: See Table
A cast iron body absorbs vibration from pressure changes to reduce wear and noise in your pipeline. These valves automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range.
Internal strainers trap debris.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | ||||||||
---|---|---|---|---|---|---|---|---|---|
Pipe Size | Location | Max. Pressure, psi | Pipe Size | Location | Temperature Range | End-to-End Lg. | Choose an Outlet Pressure Range, psi | Each | |
NPT Female | |||||||||
Cast Iron Body—Buna-N Diaphragm and Seal with Internal Strainer | |||||||||
1/4 | Side | 200 | 1/4 | Side | 32° to 180° F | 3" | 0000000 | 0000000 | |
3/8 | Side | 200 | 3/8 | Side | 32° to 180° F | 3 7/8" | 0000000 | 000000 | |
1/2 | Side | 200 | 1/2 | Side | 32° to 180° F | 4 1/2" | 0000000 | 000000 | |
3/4 | Side | 200 | 3/4 | Side | 32° to 180° F | 5 1/8" | 0000000 | 000000 | |
1 | Side | 200 | 1 | Side | 32° to 180° F | 5 7/8" | 0000000 | 000000 | |
1 1/4 | Side | 200 | 1 1/4 | Side | 32° to 180° F | 6 3/4" | 0000000 | 000000 | |
1 1/2 | Side | 200 | 1 1/2 | Side | 32° to 180° F | 6 3/4" | 0000000 | 000000 | |
2 | Side | 200 | 2 | Side | 32° to 180° F | 9 1/4" | 0000000 | 00000000 | |
Cast Iron Body—Fluoroelastomer Diaphragm and 420 Stainless Steel Seal | |||||||||
3/8 | Side | 250 | 3/8 | Side | 32° to 300° F | 4 1/4" | 0000000 | 000000 | |
1/2 | Side | 250 | 1/2 | Side | 32° to 300° F | 3 5/8" | 0000000 | 000000 | |
3/4 | Side | 250 | 3/4 | Side | 32° to 300° F | 3 5/8" | 0000000 | 000000 | |
1 | Side | 250 | 1 | Side | 32° to 300° F | 4 1/2" | 0000000 | 000000 | |
2 | Side | 250 | 2 | Side | 32° to 300° F | 6 1/2" | 0000000 | 000000 |
Corrosion-Resistant Pressure-Regulating
Valves for Water, Oil, Air, and Inert Gas

- For Use With: Water, Oil, Air, Inert Gas
- Temperature Range: 32° to 200° F
Often used in wet conditions and harsh environments, these valves have a 316 stainless steel body for excellent corrosion resistance. 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.
Extended-Life Pressure-Regulating Valves for Water, Oil, Air, and Inert Gas

- For Use With: Water, Oil, Air, Inert Gas
- Temperature Range: 32° to 180° F
For a longer service life than brass and cast iron valves, these have a durable bronze body. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. All valves have an internal strainer to trap debris.
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 | |
NPT Female | ||||||||
Bronze Body—Buna-N Diaphragm and Seal | ||||||||
1/4 | Side | 400 | 1/4 | Side | 3" | 00000000 | 0000000 | |
3/8 | Side | 400 | 3/8 | Side | 3 7/8" | 00000000 | 000000 | |
1/2 | Side | 400 | 1/2 | Side | 4 1/2" | 00000000 | 000000 | |
3/4 | Side | 400 | 3/4 | Side | 5 1/8" | 00000000 | 000000 | |
1 | Side | 400 | 1 | Side | 5 7/8" | 00000000 | 000000 | |
1 1/4 | Side | 400 | 1 1/4 | Side | 6 3/4" | 00000000 | 00000000 | |
1 1/2 | Side | 400 | 1 1/2 | Side | 6 3/4" | 00000000 | 00000000 | |
2 | Side | 400 | 2 | Side | 9 1/4" | 00000000 | 00000000 |
High-Pressure-Regulating Valves for Water, Oil, Air, and Inert Gas

- For Use With: Water, Oil, Air, Inert Gas
- Temperature Range: 32° to 300° F
Withstand more than six times the inlet pressure of standard pressure-regulating valves. These valves automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Valves have a 303 stainless steel body for corrosion resistance in harsh environments.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | |||||||
---|---|---|---|---|---|---|---|---|
Pipe Size | Location | Max. Pressure, psi | Pipe Size | Location | Port-to-Port Lg. | Choose an Outlet Pressure Range, psi | Each | |
NPT Female | ||||||||
303 Stainless Steel Body—PTFE Seal | ||||||||
2 | Side | 3,000 | 2 | Bottom | 3" | 0000000 | 000000000 |
High-Temperature Pressure-Regulating Valves for Water, Oil, Air, and Inert Gas

- For Use With: Water, Oil, Air, Inert Gas
- Temperature Range: 32° to 550° F
Rated for more than double the temperature of standard pressure-regulating valves, these can withstand temperatures up to 550° F. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Valves meet ANSI/FCI 70-2 Class IV for tight shut-off (max. leakage rate of 0.01%).
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 | |
NPT Female | ||||||||
Steel Body—316 Stainless Steel Diaphragm and 303 Stainless Steel Seal | ||||||||
1/2 | Side | 300 | 1/2 | Side | 3 5/8" | 00000000 | 000000000 | |
3/4 | Side | 300 | 3/4 | Side | 3 5/8" | 00000000 | 00000000 | |
1 | Side | 300 | 1 | Side | 4 3/16" | 00000000 | 00000000 | |
1 1/2 | Side | 300 | 1 1/2 | Side | 4 13/16" | 00000000 | 00000000 | |
2 | Side | 300 | 2 | Side | 5 1/2" | 00000000 | 00000000 |
Tamper-Resistant Compact Pressure-Regulating Valves for Air and Inert Gas

- For Use With: Air, Inert Gas
- Max. Temperature: 175° F
Prevent changes to your pressure setting—these valves come set at a nonadjustable outlet pressure. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. All have two gauge ports.
For technical drawings and 3-D models, click on a part number.
Corrosion-Resistant Panel-Mount Ultra-High-Pressure-Regulating
Valves for Water, Air, and Inert Gas

- For Use With: Water, Air, Inert Gas
- Temperature Range: 32° to 165° F
To regulate inlet pressures up to 6,000 psi in wet conditions and harsh environments, these valves have a 316 stainless steel body for exceptional corrosion resistance. They 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. They are no-bleed style, so they keep the 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. | Panel Cutout Dia. | Choose an Outlet Pressure Range, psi | Each | |
NPT Female | |||||||||||
316 Stainless Steel Body—PTFE Seal | |||||||||||
1/4 | Side | 6,000 | 1/4 | Side | 1/4 | Side | 2" | 1.37" | 0000000 | 0000000 |
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 |
Extended-Life Vacuum-Regulating Valves for Air and Inert Gas

- For Use With: Air, Inert Gas
- Temperature Range: -20° to 180° F
For a longer service life than brass vacuum-regulating valves, these are made of bronze for strength and durability. They throttle a high vacuum source to maintain a lower vacuum level in your system. Turning the adjustment screw will adjust the vacuum setting.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | |||||||
---|---|---|---|---|---|---|---|---|
Pipe Size | Location | Pipe Size | Location | Vacuum Range, in. of Hg | Vacuum Adjustment Method | End-to-End Lg. | Each | |
NPT Female | ||||||||
Bronze Body—Neoprene Diaphragm and Chrome-Plated Bronze Seal | ||||||||
1/2 | Side | 1/2 | Side | 2 to 30 | Screw | 2 7/8" | 0000000 | 0000000 |
3/4 | Side | 3/4 | Side | 2 to 30 | Screw | 2 7/8" | 0000000 | 000000 |
1 | Side | 1 | Side | 2 to 30 | Screw | 4 1/2" | 0000000 | 00000000 |
1 1/4 | Side | 1 1/4 | Side | 2 to 30 | Screw | 4 1/2" | 0000000 | 00000000 |
1 1/2 | Side | 1 1/2 | Side | 8 to 30 | Screw | 5 3/4" | 0000000 | 00000000 |
2 | Side | 2 | Side | 8 to 30 | Screw | 5 3/4" | 0000000 | 00000000 |
Vacuum-Regulating Valves for Air and Inert Gas

- For Use With: Air, Carbon Dioxide, Inert Gas, Nitrogen
- Temperature Range: -20° to 180° F
Throttle a high vacuum source to maintain a lower vacuum level in your system. Adjust the outlet vacuum level within the range. All valves have a gauge port.
For technical drawings and 3-D models, click on a part number.
Plastic Panel-Mount Vacuum-Regulating Valves for Air and Inert Gas

- For Use With: Air, Inert Gas
- Temperature Range: 40° to 150° F
A lighter and more corrosion-resistant alternative to metal valves. All valves throttle a high vacuum source to maintain a lower vacuum level in your system. Adjust the outlet vacuum level within the range. Threads below the adjustment knob and an included panel-mount nut let you add these valves to your instrument panel. All are constant-bleed style, so they continually release small amounts of process gas to improve accuracy and repeatability.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Thread Size | Location | Pipe Size | Thread Size | Location | Vacuum Range, in. of Hg | Vacuum Adjustment Method | End-to-End Lg. | Panel Cutout Dia. | Each | |
NPT Female | |||||||||||
Polysulfone Body—Buna-N/EPDM Diaphragm and Polyurethane Seal | |||||||||||
1/8 | __ | Side | 1/8 | __ | Side | 0 to 30 | Knob | 1 9/16" | 9/16" | 00000000 | 000000 |
UNF Female | |||||||||||
Polysulfone Body—Buna-N/EPDM Diaphragm and Polyurethane Seal | |||||||||||
__ | 10-32 | Side | __ | 10-32 | Side | 0 to 30 | Knob | 1 1/8" | 9/16" | 00000000 | 00000 |