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Relief setting is infinitely adjustable from 5 psi to 125 psi - 5-100 psi on 3" and 4" sizes.

Functions as relief, bypass, back pressure, anti-siphon valve and back pressure regulator.

Unique internal flow path provides highest flow rates at set pressure.
Polytetrafluoroethylene (PTFE) Diaphragm Relief/Bypass/Back Pressure/Anti-Siphon Valves
Unit of Measure
1 2 

Item #

Item Name

Connection Size

Connection Type

Body Material

Seal Material

RVDT025T-PV N/A 1/4 Inch (in) National Pipe Thread (NPT) Polyvinyl Chloride (PVC) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 1/4 in N/A National Pipe Thread (NPT) N/A Polyvinyl Chloride (PVC) N/A Polytetrafluoroethylene (PTFE)
RVDTM050T-PV N/A 1/2 Inch (in) National Pipe Thread (NPT) Polyvinyl Chloride (PVC) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 1/2 in N/A National Pipe Thread (NPT) N/A Polyvinyl Chloride (PVC) N/A Polytetrafluoroethylene (PTFE)
RVDT075T-PV N/A 3/4 Inch (in) National Pipe Thread (NPT) Polyvinyl Chloride (PVC) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 3/4 in N/A National Pipe Thread (NPT) N/A Polyvinyl Chloride (PVC) N/A Polytetrafluoroethylene (PTFE)
RVDTM100T-PV N/A 1 Inch (in) National Pipe Thread (NPT) Polyvinyl Chloride (PVC) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 1 in N/A National Pipe Thread (NPT) N/A Polyvinyl Chloride (PVC) N/A Polytetrafluoroethylene (PTFE)
RVDT150T-PV N/A 1-1/2 Inch (in) National Pipe Thread (NPT) Polyvinyl Chloride (PVC) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 1-1/2 in N/A National Pipe Thread (NPT) N/A Polyvinyl Chloride (PVC) N/A Polytetrafluoroethylene (PTFE)
RVDT200T-PV N/A 2 Inch (in) National Pipe Thread (NPT) Polyvinyl Chloride (PVC) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 2 in N/A National Pipe Thread (NPT) N/A Polyvinyl Chloride (PVC) N/A Polytetrafluoroethylene (PTFE)
RVDT300T-PV N/A 3 Inch (in) National Pipe Thread (NPT) Polyvinyl Chloride (PVC) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 3 in N/A National Pipe Thread (NPT) N/A Polyvinyl Chloride (PVC) N/A Polytetrafluoroethylene (PTFE)
RVDT400T-PV N/A 4 Inch (in) National Pipe Thread (NPT) Polyvinyl Chloride (PVC) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 4 in N/A National Pipe Thread (NPT) N/A Polyvinyl Chloride (PVC) N/A Polytetrafluoroethylene (PTFE)
RVDT025T-CP N/A 1/4 Inch (in) National Pipe Thread (NPT) Chlorinated Polyvinyl Chloride (CPVC) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 1/4 in N/A National Pipe Thread (NPT) N/A Chlorinated Polyvinyl Chloride (CPVC) N/A Polytetrafluoroethylene (PTFE)
RVDTM050T-CP N/A 1/2 Inch (in) National Pipe Thread (NPT) Chlorinated Polyvinyl Chloride (CPVC) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 1/2 in N/A National Pipe Thread (NPT) N/A Chlorinated Polyvinyl Chloride (CPVC) N/A Polytetrafluoroethylene (PTFE)
RVDT075T-CP N/A 3/4 Inch (in) National Pipe Thread (NPT) Chlorinated Polyvinyl Chloride (CPVC) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 3/4 in N/A National Pipe Thread (NPT) N/A Chlorinated Polyvinyl Chloride (CPVC) N/A Polytetrafluoroethylene (PTFE)
RVDTM100T-CP N/A 1 Inch (in) National Pipe Thread (NPT) Chlorinated Polyvinyl Chloride (CPVC) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 1 in N/A National Pipe Thread (NPT) N/A Chlorinated Polyvinyl Chloride (CPVC) N/A Polytetrafluoroethylene (PTFE)
RVDT150T-CP N/A 1-1/2 Inch (in) National Pipe Thread (NPT) Chlorinated Polyvinyl Chloride (CPVC) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 1-1/2 in N/A National Pipe Thread (NPT) N/A Chlorinated Polyvinyl Chloride (CPVC) N/A Polytetrafluoroethylene (PTFE)
RVDT200T-CP N/A 2 Inch (in) National Pipe Thread (NPT) Chlorinated Polyvinyl Chloride (CPVC) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 2 in N/A National Pipe Thread (NPT) N/A Chlorinated Polyvinyl Chloride (CPVC) N/A Polytetrafluoroethylene (PTFE)
RVDT025T-PP N/A 1/4 Inch (in) National Pipe Thread (NPT) Polypropylene (PP) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 1/4 in N/A National Pipe Thread (NPT) N/A Polypropylene (PP) N/A Polytetrafluoroethylene (PTFE)
RVDTM050T-PP N/A 1/2 Inch (in) National Pipe Thread (NPT) Polypropylene (PP) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 1/2 in N/A National Pipe Thread (NPT) N/A Polypropylene (PP) N/A Polytetrafluoroethylene (PTFE)
RVDT075T-PP N/A 3/4 Inch (in) National Pipe Thread (NPT) Polypropylene (PP) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 3/4 in N/A National Pipe Thread (NPT) N/A Polypropylene (PP) N/A Polytetrafluoroethylene (PTFE)
RVDTM100T-PP N/A 1 Inch (in) National Pipe Thread (NPT) Polypropylene (PP) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 1 in N/A National Pipe Thread (NPT) N/A Polypropylene (PP) N/A Polytetrafluoroethylene (PTFE)
RVDT150T-PP N/A 1-1/2 Inch (in) National Pipe Thread (NPT) Polypropylene (PP) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 1-1/2 in N/A National Pipe Thread (NPT) N/A Polypropylene (PP) N/A Polytetrafluoroethylene (PTFE)
RVDT200T-PP N/A 2 Inch (in) National Pipe Thread (NPT) Polypropylene (PP) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 2 in N/A National Pipe Thread (NPT) N/A Polypropylene (PP) N/A Polytetrafluoroethylene (PTFE)
RVDT025T-TF N/A 1/4 Inch (in) National Pipe Thread (NPT) Polytetrafluoroethylene (PTFE) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 1/4 in N/A National Pipe Thread (NPT) N/A Polytetrafluoroethylene (PTFE) N/A Polytetrafluoroethylene (PTFE)
RVDT050T-TF N/A 1/2 Inch (in) National Pipe Thread (NPT) Polytetrafluoroethylene (PTFE) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 1/2 in N/A National Pipe Thread (NPT) N/A Polytetrafluoroethylene (PTFE) N/A Polytetrafluoroethylene (PTFE)
RVDT075T-TF N/A 3/4 Inch (in) National Pipe Thread (NPT) Polytetrafluoroethylene (PTFE) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 3/4 in N/A National Pipe Thread (NPT) N/A Polytetrafluoroethylene (PTFE) N/A Polytetrafluoroethylene (PTFE)
RVDT100T-TF N/A 1 Inch (in) National Pipe Thread (NPT) Polytetrafluoroethylene (PTFE) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 1 in N/A National Pipe Thread (NPT) N/A Polytetrafluoroethylene (PTFE) N/A Polytetrafluoroethylene (PTFE)
RVDT025T-PF N/A 1/4 Inch (in) National Pipe Thread (NPT) Polyvinylidene Fluoride (PVDF) Relief/Bypass/Back Pressure/Anti-Siphon Valve with Polytetrafluoroethylene (PTFE) Seal N/A 1/4 in N/A National Pipe Thread (NPT) N/A Polyvinylidene Fluoride (PVDF) N/A Polytetrafluoroethylene (PTFE)
Unit of Measure
1 2