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
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.
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.
Hayward RV Series pressure relief valves protect piping system components from damage due to overpressurization.
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