Pressure Washer Pressure Relief Valve

This video shows the unloader valve in a cut away of a 2700 psi homelite pressure washer.

Pressure washer pressure relief valve.

It circulates through the pumps in the washer system and comes back to the inlet of the unloader. Ultimate washer uw11 pwabv038 power washer ball valve kit 3 8 inch male plug x 3 8 inch female quick connect 4000 psi for high pressure hoses 3 7 out of 5 stars 162 33 99 33. Oem 5140095 85 replacement pressure washer valve thermal relief dh4240 for dewalt. Dewalt oem 5140095 85 replacement pressure washer valve thermal relief dh4240.

Thermal relief valves are a must have for pressure washers when the water is supplied by a garden type water hose. 4 7 out of 5 stars 11. Needless to say an unloader valve is a crucial element of the pressure washer. 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.

After watching this video you may be able to get your pressure wash. When the operator releases the trigger the pump s unloader diverts the water back to the inlet side of the pump. Pressure relief safety valves for power washing from brands such as general pump giant fluid controls more. Pressure thermal relief safety valves for the power washing industry from brands such as annovi reverberi cat general pump je adams giant more.

More buying choices 19 18 14 new offers homelite new 1 4 thermal release relief valve for pressure washer water pumps by the rop shop. New oem homelite 1 4 thermal release relief valve pressure washers 678169004. When the thermal relief valve opens cool water enters the pump and cools the system. Only 5 left in stock order soon.

Importance of adjusting the unloader valve. If your pressure washer is not building pressure and the engine is surging there could be a few different causes. Oem pressure washer water thermal relief valve general pump 100558 1 2 m inlet. Options from 1 4 to 1 2 in 1200 6000 psi.

This is referred to as a closed loop by pass.