COMPANY HEADER
  • Rolling Diaphragm Design Relief Valves
Rolling diaphragm provides high accuracy, prevents crystallization.

Flat secondary diaphragm provides a second isolation of the control spring.

Patented Fail-Dry® safety vent gives advance warning of need to replace primary seal.

Relief setting is infinitely adjustable from 5 psi to 100 psi.

Not recommended for applications with vacuum or back pressure on the outlet.
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Connection Type

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Seal Material

N/A 1/2 Inch (in) National Pipe Thread (NPT) Polyvinyl Chloride (PVC) Relief/Bypass/Backpressure Valve with Fluorocarbon (FKM) Seal N/A 1/2 in N/A National Pipe Thread (NPT) N/A Polyvinyl Chloride (PVC) N/A Fluorocarbon (FKM)
N/A 1/2 Inch (in) National Pipe Thread (NPT) Polyvinyl Chloride (PVC) Relief/Bypass/Backpressure Valve with Ethylene Propylene Diene Monomer (EPDM) Seal N/A 1/2 in N/A National Pipe Thread (NPT) N/A Polyvinyl Chloride (PVC) N/A Ethylene Propylene Diene Monomer (EPDM)
N/A 3/4 Inch (in) National Pipe Thread (NPT) Polyvinyl Chloride (PVC) Relief/Bypass/Backpressure Valve with Fluorocarbon (FKM) Seal N/A 3/4 in N/A National Pipe Thread (NPT) N/A Polyvinyl Chloride (PVC) N/A Fluorocarbon (FKM)
N/A 3/4 Inch (in) National Pipe Thread (NPT) Polyvinyl Chloride (PVC) Relief/Bypass/Backpressure Valve with Ethylene Propylene Diene Monomer (EPDM) Seal N/A 3/4 in N/A National Pipe Thread (NPT) N/A Polyvinyl Chloride (PVC) N/A Ethylene Propylene Diene Monomer (EPDM)
N/A 1 Inch (in) National Pipe Thread (NPT) Polyvinyl Chloride (PVC) Relief/Bypass/Backpressure Valve with Fluorocarbon (FKM) Seal N/A 1 in N/A National Pipe Thread (NPT) N/A Polyvinyl Chloride (PVC) N/A Fluorocarbon (FKM)
N/A 1 Inch (in) National Pipe Thread (NPT) Polyvinyl Chloride (PVC) Relief/Bypass/Backpressure Valve with Ethylene Propylene Diene Monomer (EPDM) Seal N/A 1 in N/A National Pipe Thread (NPT) N/A Polyvinyl Chloride (PVC) N/A Ethylene Propylene Diene Monomer (EPDM)
N/A 1/2 Inch (in) National Pipe Thread (NPT) Chlorinated Polyvinyl Chloride (CPVC) Relief/Bypass/Backpressure Valve with Fluorocarbon (FKM) Seal N/A 1/2 in N/A National Pipe Thread (NPT) N/A Chlorinated Polyvinyl Chloride (CPVC) N/A Fluorocarbon (FKM)
N/A 1/2 Inch (in) National Pipe Thread (NPT) Chlorinated Polyvinyl Chloride (CPVC) Relief/Bypass/Backpressure Valve with Ethylene Propylene Diene Monomer (EPDM) Seal N/A 1/2 in N/A National Pipe Thread (NPT) N/A Chlorinated Polyvinyl Chloride (CPVC) N/A Ethylene Propylene Diene Monomer (EPDM)
N/A 3/4 Inch (in) National Pipe Thread (NPT) Chlorinated Polyvinyl Chloride (CPVC) Relief/Bypass/Backpressure Valve with Fluorocarbon (FKM) Seal N/A 3/4 in N/A National Pipe Thread (NPT) N/A Chlorinated Polyvinyl Chloride (CPVC) N/A Fluorocarbon (FKM)
N/A 3/4 Inch (in) National Pipe Thread (NPT) Chlorinated Polyvinyl Chloride (CPVC) Relief/Bypass/Backpressure Valve with Ethylene Propylene Diene Monomer (EPDM) Seal N/A 3/4 in N/A National Pipe Thread (NPT) N/A Chlorinated Polyvinyl Chloride (CPVC) N/A Ethylene Propylene Diene Monomer (EPDM)
N/A 1 Inch (in) National Pipe Thread (NPT) Chlorinated Polyvinyl Chloride (CPVC) Relief/Bypass/Backpressure Valve with Fluorocarbon (FKM) Seal N/A 1 in N/A National Pipe Thread (NPT) N/A Chlorinated Polyvinyl Chloride (CPVC) N/A Fluorocarbon (FKM)
N/A 1 Inch (in) National Pipe Thread (NPT) Chlorinated Polyvinyl Chloride (CPVC) Relief/Bypass/Backpressure Valve with Ethylene Propylene Diene Monomer (EPDM) Seal N/A 1 in N/A National Pipe Thread (NPT) N/A Chlorinated Polyvinyl Chloride (CPVC) N/A Ethylene Propylene Diene Monomer (EPDM)
N/A 1/2 Inch (in) National Pipe Thread (NPT) Polypropylene (PP) Relief/Bypass/Backpressure Valve with Fluorocarbon (FKM) Seal N/A 1/2 in N/A National Pipe Thread (NPT) N/A Polypropylene (PP) N/A Fluorocarbon (FKM)
N/A 1/2 Inch (in) National Pipe Thread (NPT) Polypropylene (PP) Relief/Bypass/Backpressure Valve with Ethylene Propylene Diene Monomer (EPDM) Seal N/A 1/2 in N/A National Pipe Thread (NPT) N/A Polypropylene (PP) N/A Ethylene Propylene Diene Monomer (EPDM)
N/A 3/4 Inch (in) National Pipe Thread (NPT) Polypropylene (PP) Relief/Bypass/Backpressure Valve with Fluorocarbon (FKM) Seal N/A 3/4 in N/A National Pipe Thread (NPT) N/A Polypropylene (PP) N/A Fluorocarbon (FKM)
N/A 3/4 Inch (in) National Pipe Thread (NPT) Polypropylene (PP) Relief/Bypass/Backpressure Valve with Ethylene Propylene Diene Monomer (EPDM) Seal N/A 3/4 in N/A National Pipe Thread (NPT) N/A Polypropylene (PP) N/A Ethylene Propylene Diene Monomer (EPDM)
N/A 1 Inch (in) National Pipe Thread (NPT) Polypropylene (PP) Relief/Bypass/Backpressure Valve with Fluorocarbon (FKM) Seal N/A 1 in N/A National Pipe Thread (NPT) N/A Polypropylene (PP) N/A Fluorocarbon (FKM)
N/A 1 Inch (in) National Pipe Thread (NPT) Polypropylene (PP) Relief/Bypass/Backpressure Valve with Ethylene Propylene Diene Monomer (EPDM) Seal N/A 1 in N/A National Pipe Thread (NPT) N/A Polypropylene (PP) N/A Ethylene Propylene Diene Monomer (EPDM)
N/A 1/2 Inch (in) National Pipe Thread (NPT) Polyvinylidene Fluoride (PVDF) Relief/Bypass/Backpressure Valve with Fluorocarbon (FKM) Seal N/A 1/2 in N/A National Pipe Thread (NPT) N/A Polyvinylidene Fluoride (PVDF) N/A Fluorocarbon (FKM)
N/A 1/2 Inch (in) National Pipe Thread (NPT) Polyvinylidene Fluoride (PVDF) Relief/Bypass/Backpressure Valve with Ethylene Propylene Diene Monomer (EPDM) Seal N/A 1/2 in N/A National Pipe Thread (NPT) N/A Polyvinylidene Fluoride (PVDF) N/A Ethylene Propylene Diene Monomer (EPDM)
N/A 3/4 Inch (in) National Pipe Thread (NPT) Polyvinylidene Fluoride (PVDF) Relief/Bypass/Backpressure Valve with Fluorocarbon (FKM) Seal N/A 3/4 in N/A National Pipe Thread (NPT) N/A Polyvinylidene Fluoride (PVDF) N/A Fluorocarbon (FKM)
N/A 3/4 Inch (in) National Pipe Thread (NPT) Polyvinylidene Fluoride (PVDF) Relief/Bypass/Backpressure Valve with Ethylene Propylene Diene Monomer (EPDM) Seal N/A 3/4 in N/A National Pipe Thread (NPT) N/A Polyvinylidene Fluoride (PVDF) N/A Ethylene Propylene Diene Monomer (EPDM)
N/A 1 Inch (in) National Pipe Thread (NPT) Polyvinylidene Fluoride (PVDF) Relief/Bypass/Backpressure Valve with Fluorocarbon (FKM) Seal N/A 1 in N/A National Pipe Thread (NPT) N/A Polyvinylidene Fluoride (PVDF) N/A Fluorocarbon (FKM)
N/A 1 Inch (in) National Pipe Thread (NPT) Polyvinylidene Fluoride (PVDF) Relief/Bypass/Backpressure Valve with Ethylene Propylene Diene Monomer (EPDM) Seal N/A 1 in N/A National Pipe Thread (NPT) N/A Polyvinylidene Fluoride (PVDF) N/A Ethylene Propylene Diene Monomer (EPDM)
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