Pressure Cleaner Thermal Relief Valve

If your pressure washer is not building pressure and the engine is surging there could be a few different causes.

Pressure cleaner thermal relief valve.

When the operator releases the trigger the pump s unloader diverts the water back to the inlet side of the pump. When the water temperature rises above the acceptable limit the thermal. Mtm hydro 20 0032 3 8 fxf brass ball valve. Pressure thermal relief safety valves for the power washing industry from brands such as annovi reverberi cat general pump je adams giant more.

One of them is a sticking unloader valve. Thermal relief valves excessive heat. The pressure washer is left running while it is not spraying water the water in the pump will begin to heat up. When the thermal relief valve opens cool water enters the pump and cools the system.

5 0 out of 5 stars 1. Annovi reverberi 2800 psi pressure washer pump annovi reverberi rmw2 5g28ez sx 2800 psi 2 5 gpm with thermal relief protection valve 4 2 out of 5 stars 39 140 97 140. Ultimate washer uw11 pw5d4s thermal relief valve for pressure washers inlet 1 2 inch male pump saver device replacement for karcher 91840130 4 4 out of 5 stars 10 15 97 15. This is referred to as a closed loop by pass.

5 0 out of 5 stars 2. The leak could be due to the normal operation of the thermal release valve. If the pressure washer runs for more than 5 minutes when the spray wand isn t in use the water in the pump often overheats causing the thermal relief valve to open and discharge hot water onto the ground. Sellerocity brass thermal relief valve pressure washer measures about 7 8 inch or 0 840 which is equal to 1 2 inch npt plumbing size thread compatible with general pump 100558 tpp140 trv50.

The thermal release valve allows hot water to exit the pressure washer if the water temperature becomes excessively high.