Body Material Body Material | Hide |
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For Use With For Use With |
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Inlet Thread Type Inlet Thread Type |
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Valve Function Valve Function |
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Inlet Connection Style Inlet Connection Style |
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Outlet Connection Style Outlet Connection Style |
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Valve Type Valve Type |
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Activation Activation |
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Outlet Connection Type Outlet Connection Type |
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![]() | Tube |
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Relief Port Location Relief Port Location |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Set Pressure Configuration Set Pressure Configuration |
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Maximum Inlet Pressure Maximum Inlet Pressure |
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Set Pressure Accuracy Set Pressure Accuracy |
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Flow Coefficient (Cv) Flow Coefficient (Cv) |
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About Pressure-Relief Valves
More
Compact Pressure-Relief Valves
Due to their small size, these valves are often installed on tanks in low-clearance areas. They begin opening at the set pressure. Nylon valves fully open at about 10% over the set pressure and steel valves fully open at about 50% over the set pressure. Valves begin closing as pressure drops and fully close when the system pressure is restored below the set pressure. All have a vent outlet to exhaust discharge directly. Set pressure is not adjustable.
Nylon valves have better corrosion resistance than steel valves. They are color coded based on the set pressure for easy identification.
For technical drawings and 3-D models, click on a part number.
Pressure-Relief Valves with Push-to-Connect Fittings for Air

- For Use With: Air
- Temperature Range: 26° to 255° F
For a low-pressure seal around plastic and soft metal tubing, these valves have push-to-connect fittings. They allow inline flow from the inlet to the outlet during normal conditions and divert flow to the relief port in overpressure conditions. The relief port begins opening at the set pressure and fully opens at about 10% over the set pressure. It begins closing as pressure drops and fully closes when the system pressure is restored below the set pressure. The vented relief port exhausts discharge directly. Set pressure is not adjustable. Valves are color coded based on the set pressure for easy identification.
For technical drawings and 3-D models, click on a part number.
Inlet | Outlet | ||||||||
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For Tube OD | Location | Maximum Pressure | For Tube OD | Location | Relief Port Location | Overall Ht. | Choose a Set Pressure, psi | Each | |
Push-to-Connect Female Inlet, Outlet and Relief Vent | |||||||||
Nylon Body—Buna-N Seal | |||||||||
1/4" | Side | Not Rated | 1/4" | Side | Top | 1 1/4" | 0000000 | 000000 | |
5/16" | Side | Not Rated | 5/16" | Side | Top | 1 5/16" | 0000000 | 00000 | |
3/8" | Side | Not Rated | 3/8" | Side | Top | 1 1/2" | 0000000 | 00000 | |
1/2" | Side | Not Rated | 1/2" | Side | Top | 1 3/4" | 0000000 | 00000 |