About Backflow-Prevention Valves
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About On/Off Valves
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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 |
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 | 0000000 |
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 |
High-Accuracy Pressure-Regulating Valves for Steam
- For Use With: Steam
- Temperature Range: 40° to 450° F
Control steam line pressure with ±1 psi accuracy. 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 cast iron body that absorbs vibration from pressure changes to reduce wear and noise in your pipeline. They meet ANSI/FCI 70-2 Class IV for tight shut-off (max. leakage rate of 0.01%). Install 1/4 NPT male pipe (not included) between the control valve and your downstream steam line.
Repair kits (sold separately) include replacement seals, diaphragm, spring, and spring assembly.
For technical drawings and 3-D models, click on a part number.
Valves | |||||||||
---|---|---|---|---|---|---|---|---|---|
Inlet | Outlet | Repair Kits | |||||||
Pipe Size | Location | Max. Pressure, psi | Pipe Size | Location | Choose an Outlet Pressure Range, psi | Each | Each | ||
NPT Female | |||||||||
Cast Iron Body—301 Stainless Steel Diaphragm and 420 Stainless Steel Seal | |||||||||
1/2 | Side | 250 | 1/2 | Side | 0000000 | 000000000 | 0000000 | 0000000 | |
3/4 | Side | 250 | 3/4 | Side | 0000000 | 00000000 | 0000000 | 000000 | |
1 | Side | 250 | 1 | Side | 0000000 | 00000000 | 0000000 | 000000 | |
1 1/4 | Side | 250 | 1 1/4 | Side | 0000000 | 00000000 | 0000000 | 000000 | |
1 1/2 | Side | 250 | 1 1/2 | Side | 0000000 | 00000000 | 0000000 | 000000 | |
2 | Side | 250 | 2 | Side | 0000000 | 00000000 | 0000000 | 00000000 |
Threaded Pressure-Regulating Valves for Food and Beverage
- For Use With: Food and Beverage
- Temperature Range: 35° to 125° F
These valves are often used to regulate pressure in food and beverage lines. 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 and come with plugs to close the unused ports.
Valves with knob have a Buna-N/Nylon diaphragm which is FDA Compliant 21 CFR 177.2600.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Location | Max. Pressure, psi | Pipe Size | Location | Pressure Adjustment Method | End-to-End Lg. | Specifications Met | Choose an Outlet Pressure Range, psi | Each | |
NPT Female | ||||||||||
Acetal Body—Buna-N/Nylon Diaphragm and EPDM Seal with Knob | ||||||||||
1/4 | Side | 150 | 1/4 | Side | Knob | 1 5/8" | FDA Compliant 21 CFR 177.2600, NSF/ANSI 61 | 0000000 | 000000 | |
Noryl PPO Body—Buna-N Diaphragm and Seal with Screw | ||||||||||
1/4 | Side | 300 | 1/4 | Side | Screw | 1 9/16" | NSF/ANSI 61 | 0000000 | 000000 |
Pressure-Regulating Valves with Push-to-Connect Fittings for Food and Beverage
- For Use With: Food and Beverage
- Temperature Range: 35° to 125° F
Insert plastic or soft metal tubing into the push-to-connect fittings on these valves for a low-pressure seal in food and beverage lines. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. They have two gauge ports.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Tube Connection Type | For Tube OD | Location | Max. Pressure, psi | For Tube OD | Location | Pressure Adjustment Method | End-to-End Length | Specifications Met | Choose an Outlet Pressure Range, psi | Each | |
Push-to-Connect Female | |||||||||||
Noryl PPO Body—Buna-N Diaphragm and Seal | |||||||||||
Push to Connect | 1/4" | Side | 300 | 1/4" | Side | Screw | 2 13/16" | NSF/ANSI 61 | 0000000 | 0000000 |
Pressure-Regulating Valves for Drinking Water
- For Use With: Drinking Water
- Temperature Range: 33° to 140° F
These valves meet NSF/ANSI 61 for use in drinking water systems. They 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. An internal strainer traps debris. Body is bronze for durability and a long service life.
Valves with union fitting disassemble for easy installation and removal.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | ||||||||
---|---|---|---|---|---|---|---|---|---|
Pipe Size | Location | Max. Pressure, psi | Pipe Size | Location | Pressure Range, psi | End-to-End Lg. | Specifications Met | Each | |
NPT Female | |||||||||
Bronze Body—Buna-N Diaphragm and Seal with Internal Strainer | |||||||||
1/2 | Side | 400 | 1/2 | Side | 15 to 75 | 3 1/2" | ASSE 1003 Listed, CSA Certified, IAPMO Listed, NSF/ANSI 61 | 0000000 | 0000000 |
3/4 | Side | 400 | 3/4 | Side | 15 to 75 | 3 1/2" | ASSE 1003 Listed, CSA Certified, IAPMO Listed, NSF/ANSI 61 | 0000000 | 000000 |
1 | Side | 400 | 1 | Side | 15 to 75 | 4" | ASSE 1003 Listed, CSA Certified, IAPMO Listed, NSF/ANSI 61 | 0000000 | 000000 |
Bronze Body—Buna-N Diaphragm and Seal with Internal Strainer and Union Fitting | |||||||||
1/2 | Side | 400 | 1/2 | Side | 15 to 75 | 4 3/8" | ASSE 1003 Listed, CSA Certified, IAPMO Listed, NSF/ANSI 61 | 0000000 | 000000 |
3/4 | Side | 400 | 3/4 | Side | 15 to 75 | 4 7/16" | ASSE 1003 Listed, CSA Certified, IAPMO Listed, NSF/ANSI 61 | 0000000 | 000000 |
1 | Side | 400 | 1 | Side | 15 to 75 | 4 15/16" | ASSE 1003 Listed, CSA Certified, IAPMO Listed, NSF/ANSI 61 | 0000000 | 000000 |
1 1/4 | Side | 400 | 1 1/4 | Side | 15 to 75 | 6 3/16" | ASSE 1003 Listed, CSA Certified, IAPMO Listed, NSF/ANSI 61 | 0000000 | 000000 |
1 1/2 | Side | 300 | 1 1/2 | Side | 25 to 75 | 6 5/16" | ASSE 1003 Listed, CSA Certified, IAPMO Listed, NSF/ANSI 61 | 0000000 | 000000 |
2 | Side | 300 | 2 | Side | 25 to 75 | 6 1/4" | ASSE 1003 Listed, CSA Certified, IAPMO Listed, NSF/ANSI 61 | 0000000 | 000000 |
Sanitary Pressure-Regulating Valves
- For Use With: Food and Beverage
- Temperature Range: -40° to 120°F
- Specifications Met: 3-A Certified 64-00, ANSI/FCI 70-2 Class III, FDA Compliant 21 CFR 177.2600
Regulate air, gas, and liquid pressure on food, beverage, and pharmaceutical lines with these valves—they’re 3-A certified to meet sanitary design standards. Attach them to your line to reduce a high, variable inlet pressure to a lower, stable outlet pressure.
Twist the T-handle on top of the valve to adjust the outlet pressure. When the valve is closed, a seal on the outlet prevents leaks and helps maintain consistent pressure. These valves meet ANSI/FCI 70-2 Class III, which means a maximum of 0.1% of fluid, gas, or air can escape while they are fully closed. The spring and valve mechanism are sealed behind the diaphragm, so contaminants can’t enter. Both the diaphragm and seals hold up to water, detergents, and chemicals. They’re also FDA compliant for direct contact with food.
Made of 316 stainless steel, these valves won’t corrode from frequent washdowns with harsh cleaners. They connect to your line with quick-clamp sanitary fittings, also known as tri-clamp connections, which are easier to remove and sanitize than threaded connections. The polished interior is extremely smooth, so there’s nowhere for bacteria to hide. They’re also self-draining, so liquids drain completely and don’t contaminate your line. Keep these valves open during clean-in-place (CIP) cycles with a locking pin.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Tube OD | Flange OD | Location | Max. Pressure, psi | For Tube OD | Flange OD | Location | Pressure Adjustment Method | End-to-End Lg. | Choose an Outlet Pressure Range, psi | Each | |
Quick Clamp | |||||||||||
316 Stainless Steel Body—EPDM Diaphragm and EPDM Seal | |||||||||||
3/4" | 0.984" | Bottom | 200 | 3/4" | 0.984" | Side | T-Handle | 8 5/8" | 0000000 | 000000000 | |
1" | 1.984" | Bottom | 200 | 1" | 1.984" | Side | T-Handle | 8 5/8" | 0000000 | 00000000 | |
316 Stainless Steel Body—PTFE Plastic Diaphragm and EPDM Seal | |||||||||||
1 1/2" | 1.984" | Bottom | 125 | 1 1/2" | 1.984" | Side | T-Handle | 13 3/8" | 0000000 | 00000000 | |
2" | 2.516" | Bottom | 100 | 2" | 2.516" | Side | T-Handle | 16 1/8" | 0000000 | 00000000 |
Sanitary Back-Pressure-Regulating Valves
- For Use With: Food and Beverage
- Temperature Range: -40° to 120°F
- Specifications Met: 3-A Certified 64-00, ANSI/FCI 70-2 Class III, FDA Compliant 21 CFR 177.2600
Designed to meet 3-A sanitary standards, these valves regulate liquid, gas, and air pressure in hygienic zones of food and beverage plants. They’re often used at the end of pipelines on processing and sanitizing equipment. Made of 316 stainless steel, they won't corrode from frequent washdowns with harsh cleaners. With an extremely smooth interior that self-drains, bacteria won't have time or space to grow. The spring and internal valve mechanisms are sealed off behind the diaphragm, which also prevents contamination. They connect with quick-clamp fittings, so disassembling to clean your line takes little time.
These valves obstruct flow to maintain sufficient operating pressure in your system. If the system pressure exceeds the set pressure, they exhaust through the outlet. They meet ANSI/FCI 70-2 Class III standards for shut-off valves, meaning a maximum of 0.1% of fluid, gas, or air will escape through the outlet when they’re closed. An integrated T-handle lets you set the outlet pressure without additional tools. The diaphragm and seal resist repeated exposure to water, and they’re FDA compliant for direct contact with food.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | Lg. | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Tube OD | Flange OD | Location | Max. Pressure, psi | For Tube OD | Flange OD | Location | End-to-End | Port-to-Port | Choose an Outlet Pressure Range, psi | Each | |
Quick Clamp | |||||||||||
316 Stainless Steel Body—EPDM Diaphragm and EPDMSeal | |||||||||||
3/4" | 0.984" | Side | 200 | 3/4" | 0.984" | Bottom | 6 5/8" | 3 9/32" | 000000 | 000000000 | |
1" | 1.984" | Side | 200 | 1" | 1.984" | Bottom | 6 11/16" | 3 5/16" | 000000 | 00000000 | |
316 Stainless Steel Body—PTFE Plastic Diaphragm and EPDMSeal | |||||||||||
2" | 2.516" | Side | 100 | 2" | 2.516" | Bottom | 11 5/8" | 5 3/4" | 000000 | 00000000 |
High-Pressure Vacuum-Breaking Valves
- For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Water, Xenon
- Seal Material: Fluoroelastomer Rubber
Rated for 12 times the pressure of standard vacuum-breaking valves, these can handle up to 1,500 psi. Also known as vacuum breakers, they have vents that open when pressure drops to relieve vacuum conditions and prevent backward suction from drawing liquid into upstream piping. Body is 316 stainless steel for excellent corrosion resistance.
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.
Vacuum-Breaking Valves with Garden-Hose Fittings
- For Use With: Air, Water
- Seal Material: Rubber
Prevent dirty, contaminated water from backing up into your garden hose line—install these valves between a faucet and a garden hose. Also known as vacuum breakers, these valves have a built-in check valve that blocks backflow, so you can leave your hose in a utility sink full of dirty water without the water going back into the line.
When the check valve is closed, it has vents that open to release the water. This reduces pressure in the line and confirms the valve is working. Because these valves vent water, use them in environments where spilled water won’t cause a problem. This design adheres to ASSE Standard 1011 for valves with a vent.
Mount valves to faucet outlets with a set screw, and easily thread or unthread a hose while the valves stay in place.
Valves comply with Uniform Plumbing Code (UPC) and are CSA certified, so they're safe to use in sanitary plumbing systems because they prevent contamination from flowing backward into your line.
These valves are designed to be used intermittently. They've been tested under ASME A112.1.3, which assumes the valves will not be used for more than 12 hours at a time.
Chrome-plated brass valves are more corrosion resistant than plain brass valves.
Valves with tamper-resistant set screws have a head that breaks off after tightening to prevent valve removal after installation.
Valves that meet NSF/ANSI Standard 372 are certified lead free.
Brass Body | Chrome-Plated Brass Body | |||||||
---|---|---|---|---|---|---|---|---|
Hose Size | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Specifications Met | Each | Each | ||
GHT Female × GHT Male | ||||||||
With Set Screw | ||||||||
3/4 | 125 psi @ 70° F | 30° to 180° | 1 1/2" | ASSE Standard 1011, CSA Certified, CAN/CSA B64.2, NSF/ANSI 372, UPC Compliant, ASME A112.1.3, ASSE 1001 | 00000000 | 000000 | 00000000 | 000000 |
3/4 | 125 psi @ 70° F | 30° to 180° | 1 1/2" | ASSE Standard 1011, CSA Certified, CAN/CSA B64.2, UPC Compliant, ASME A112.1.3, ASSE 1001 | 00000000 | 00000 | 00000000 | 00000 |
With Tamper-Resistant Set Screw | ||||||||
3/4 | 125 psi @ 70° F | 30° to 180° | 1 1/2" | ASSE Standard 1011, CSA Certified, CAN/CSA B64.2, NSF/ANSI 372, UPC Compliant, ASME A112.1.3, ASSE 1001 | 00000000 | 00000 | 00000000 | 00000 |
3/4 | 125 psi @ 70° F | 30° to 180° | 1 1/2" | ASSE Standard 1011, CSA Certified, CAN/CSA B64.2, UPC Compliant, ASME A112.1.3, ASSE 1001 | 00000000 | 00000 | 00000000 | 00000 |
Easy-Maintenance Threaded Two-Stage
Backflow-Prevention Valves for Drinking Water
- For Use With: Drinking Water
- Seal Material: Buna-N Rubber
Integral shutoff valves isolate flow for inline maintenance, and a top-entry cover provides easy access to internal components. These valves meet NSF/ANSI 61 for use with drinking water. For maximum protection from system contamination, they consist of a primary check valve and a secondary check valve. If the first check fails to close when flow stops or reverses, the secondary check valve engages to prevent backflow. A strainer prevents debris from blocking the check valves.
Reduced-pressure-zone valves have a relief valve that discharges backflow if both check valves fail. Valves with an air inlet provide high-capacity relief in emergency conditions. If both check valves fail, the inlet introduces air to quickly displace liquid for faster discharge through the relief valve.
Pipe Size | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | End-to-End Lg. | Features | Specifications Met | Each | |
Bronze Body—Dual-Check Valve | ||||||||
---|---|---|---|---|---|---|---|---|
NPT Female × NPT Female | ||||||||
1/2 | 175 psi @ 180° F | 30 | 35° to 180° | 12 3/4" | Strainer | ASSE 1015, CSA Certified, NSF/ANSI 61, USC Foundation Approved | 0000000 | 0000000 |
3/4 | 175 psi @ 180° F | 30 | 35° to 180° | 14 5/16" | Strainer | ASSE 1015, CSA Certified, NSF/ANSI 61, USC Foundation Approved | 0000000 | 000000 |
1 | 175 psi @ 180° F | 30 | 35° to 180° | 17" | Strainer | ASSE 1015, CSA Certified, NSF/ANSI 61, USC Foundation Approved | 0000000 | 000000 |
1 1/2 | 175 psi @ 180° F | 30 | 35° to 180° | 21 5/8" | Strainer | ASSE 1015, CSA Certified, NSF/ANSI 61, USC Foundation Approved | 0000000 | 000000 |
2 | 175 psi @ 180° F | 30 | 35° to 180° | 24 13/16" | Strainer | ASSE 1015, CSA Certified, NSF/ANSI 61, USC Foundation Approved | 0000000 | 00000000 |
Bronze Body—Reduced-Pressure-Zone Valve | ||||||||
NPT Female × NPT Female | ||||||||
1/2 | 175 psi @ 180° F | 30 | 35° to 180° | 12 3/4" | Relief Valve, Strainer | ASSE 1013, NSF/ANSI 61, USC Foundation Approved | 00000000 | 000000 |
3/4 | 175 psi @ 140° F | 30 | 35° to 140° | 18 1/16" | Air Inlet, Relief Valve, Strainer | ASSE 1013, NSF/ANSI 61, USC Foundation Approved | 0000000 | 00000000 |
3/4 | 175 psi @ 180° F | 30 | 35° to 180° | 16 15/16" | Relief Valve, Strainer | ASSE 1013, NSF/ANSI 61, USC Foundation Approved | 00000000 | 000000 |
1 | 175 psi @ 140° F | 30 | 35° to 140° | 19 5/8" | Air Inlet, Relief Valve, Strainer | ASSE 1013, NSF/ANSI 61, USC Foundation Approved | 0000000 | 00000000 |
1 | 175 psi @ 180° F | 30 | 35° to 180° | 18 1/4" | Relief Valve, Strainer | ASSE 1013, NSF/ANSI 61, USC Foundation Approved | 00000000 | 000000 |
1 1/4 | 175 psi @ 180° F | 30 | 35° to 180° | 21 13/16" | Relief Valve, Strainer | ASSE 1013, NSF/ANSI 61, USC Foundation Approved | 00000000 | 00000000 |
1 1/2 | 175 psi @ 180° F | 30 | 35° to 180° | 22 3/4" | Relief Valve, Strainer | ASSE 1013, NSF/ANSI 61, USC Foundation Approved | 00000000 | 00000000 |
2 | 175 psi @ 180° F | 30 | 35° to 180° | 26 11/16" | Relief Valve, Strainer | ASSE 1013, NSF/ANSI 61, USC Foundation Approved | 00000000 | 00000000 |
NPT Male × NPT Male | ||||||||
1 1/2 | 175 psi @ 140° F | 30 | 35° to 140° | 24 3/8" | Air Inlet, Relief Valve, Strainer | ASSE 1013, NSF/ANSI 61, USC Foundation Approved | 0000000 | 00000000 |
2 | 175 psi @ 140° F | 30 | 35° to 140° | 25 15/16" | Air Inlet, Relief Valve, Strainer | ASSE 1013, NSF/ANSI 61, USC Foundation Approved | 0000000 | 00000000 |
Threaded Two-Stage Backflow-Prevention Valves for Drinking Water
- For Use With: Drinking Water
- Seal Material: EPDM Rubber
Keep backflow from contaminating your drinking water supply—these valves meet NSF/ANSI 61 for use with drinking water. They consist of a primary check valve and a secondary check valve. If the primary check fails to close when flow stops or reverses, the secondary check valve engages to prevent backflow.
Single-union valves have a union fitting on one end.
Double-union valves have a union fitting on both ends.
For technical drawings and 3-D models, click on a part number.
Pipe Size | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | End-to-End Lg. | Each | |
Brass Body—Single Union | ||||||
---|---|---|---|---|---|---|
NPT Female Inlet × NPT Female Outlet | ||||||
3/4 | 175 psi @ 180° F | 5 | 35° to 180° | 3 3/4" | 00000000 | 000000 |
1 | 175 psi @ 180° F | 5 | 35° to 180° | 3 3/4" | 00000000 | 000000 |
NPT Male Inlet × NPT Female Outlet | ||||||
3/4 | 175 psi @ 180° F | 5 | 35° to 180° | 3 3/4" | 00000000 | 000000 |
Brass Body—Double Union | ||||||
NPT Female Inlet × NPT Female Outlet | ||||||
1/2 | 175 psi @ 180° F | 5 | 35° to 180° | 3 3/4" | 0000000 | 000000 |
3/4 | 175 psi @ 180° F | 5 | 35° to 180° | 3 3/4" | 0000000 | 000000 |
1 | 175 psi @ 180° F | 5 | 35° to 180° | 4" | 0000000 | 000000 |
Socket-Connect On/Off Valves for Drinking Water
- Valve Type: Ball
- For Use With: Drinking Water
- Seal Material: EPDM Rubber
- Specifications Met: NSF/ANSI 61
Insert unthreaded pipe into the socket ends and bond with primer and cement to create a permanent, leak-tight connection. These valves meet NSF/ANSI 61, which means they’re safe to use with drinking water systems. All have a T-handle that resists accidental movement when snagged or bumped. They are full port, so they do not restrict flow.
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.
Pipe Size | For Pipe Schedule | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | Choose a Color | Each | |
PVC Plastic Body | |||||||||
---|---|---|---|---|---|---|---|---|---|
Socket Connect × Socket Connect | |||||||||
2 | 40, 80 | 755 | 150 psi @ 70° F | 40° to 140° | 26 | 5 3/16" | 0000000 | 000000 | |
3 | 40, 80 | 1,660 | 150 psi @ 70° F | 40° to 140° | 26 | 7 15/16" | 0000000 | 000000 | |
4 | 40, 80 | 3,129 | 150 psi @ 70° F | 40° to 140° | 26 | 9 3/16" | 0000000 | 000000 |
Frostproof Vacuum-Breaking Valves with Garden Hose Threads
Stop backward flow in outdoor faucets with garden hose outlets. This valve drains when closed to prevent freezing. To prevent tampering, tighten the set screw until the head breaks off.
Inlet | Outlet | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Ht. | Hose Size | Thread Type | Gender | Hose Size | Thread Type | Gender | Max. Pressure | Temp. Range, °F | For Use Outdoors | Specifications Met | Each | |
Brass | ||||||||||||
2" | 3/4 | GHT | Female | 3/4 | GHT | Male | 125 psi @ 70° F | 35° to 180° | Yes | ASSE 1011, CSA Certified, CAN/CSA B64.2, ASME A112.1.3 | 00000000 | 000000 |