Hvac Parker Hannifin Crankcase Pressure Regulating Valves | Cro-4 3/8″ Odf Crankcase Pressure Regulator (0 To 20 Psi)

Crankcase Pressure Regulating Valves Are Designed To Prevent Overloading Of The Compressor Motor By Limiting The Crankcase Pressure During And After A Defrost Cycle Or After A Normal Shutdown Period. When Properly Installed In The Suction Line, These Valves Automatically Throttle The Vapor Flow From The Evaporator Until The Compressor Can Handle The Load.