Thermo Relief Valve 1/2in MPT General Pump

Thermal Relief Valve General Pump 1/2in npt

Protects the pressure washer pump from heat build-up damage while it is in bypass mode

When the operator is not spraying and no water is being released  the unloader will bypass the pump water back into the pump, prolonged bypass mode heats the water and this thermal relief valve will open to dump the heated water allowing cooler water to be drawn into the pump  

Protects the pump from damaging heat build-up while it is in bypass mode by releasing the water outside the pressure washer

The thermal relief valve, sensing a rise in temperature, opens and discharges a small amount of heated fluid

This allows cooler water to enter the system and cool the pump.

When the trigger gun is operated again then the cooler water that enters the pressure washer will cause the valve to close immediately