Designed to thread into a tee in the pump's discharge line, the Parts 2O well pump pressure relief valve is factory pre-set at 75 PSI. If the pressure switch should fail to stop the pump when the maximum system pressure is reached, this mechanical relief valve opens automatically and directs water to its threaded discharge port where it can be routed harmlessly away. This safety feature protects the piping system and fixtures from excessive water pressure damage.
The Parts 2O pressure relief valve is made with lead-free brass and stainless steel for corrosion resistance and durability. 1/2" male x 3/4" female NPT threads.