Ultimate Washer Pump uw11-pw5d4s 1/2" Male Npt Relief Valve for up to 8gpm Pressure Power Washer Pump keeps pressure washer pumps in safe operation to protect against overheating
If water temperatures above 145 degrees F, a pump may not reach seals.
The thermal relief valve opens, releases hot water and let it cool water to a safe temperature to give the pump so it continues to operate. If the pump gets hot, the thermal pad valves must be replaced.
1/2" MNPT Relief Valve
Universally suitable for 1/2" lines, replacement for Karcher models g4000oh, g4000rhv2 hd3.1/31pv2, hd4.0/36pv2
Max temperature: 145°C.
Pump Saver Device