Hayward Flow Control Datasheets for Pressure Relief Valves

Pressure relief valves are self-actuated safety valves designed to relieve excess pressure upstream from the line.
Pressure Relief Valves: Learn more

Product Name Notes
Diaphragm Pressure Relief Valves -- PBV Series All thermoplastic diaphragm Back Pressure Valve for chemical feed systems, applies back pressure to a metering pump to prevent siphoning and eliminates varying dosage rates resulting from fluctuating downstream pressure.
Diaphragm Back Pressure Valves -- RPV Series All Thermoplastic diaphragm Pressure Relief Valve for protecting against over-pressure in Chemical Feed Systems. All valves are preset at 50 psi, however they are field adjustable via the adjustment screw.
Manual Flow Control Pressure Regulator Valves -- PR Series Hayward RV Series pressure relief valves protect piping system components from damage due to overpressurization.
Manual Flow Control Pressure Regulator Valves -- PR Series Pressure Regulator valves are available in PVC and Corzan CPVC. Seals are FPM only. End connections are threaded only. Pressure Regulator valves can be set from 5 - 75 PSI.
Vacuum Breakers -- VB Series Vacuum Breakers