Pressure Washer Pressure Relief Valve

New oem homelite 1 4 thermal release relief valve pressure washers 678169004.

Pressure washer pressure relief 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. Needless to say an unloader valve is a crucial element of the pressure washer. When the thermal relief valve opens cool water enters the pump and cools the system. The pressure level range of pressure washers is quite high.

When the operator releases the trigger the pump s unloader diverts the water back to the inlet side of the pump. One of them is a sticking unloader valve. If your pressure washer is not building pressure and the engine is surging there could be a few different causes. Thermal relief valves excessive heat.

After watching this video you may be able to get your pressure wash. Oem pressure washer water thermal relief valve general pump 100558 1 2 m inlet. Only 5 left in stock order soon. Importance of adjusting the unloader valve.

Oem 5140095 85 replacement pressure washer valve thermal relief dh4240 for dewalt. Thermal relief valves are a must have for pressure washers when the water is supplied by a garden type water hose. Options from 1 4 to 1 2 in 1200 6000 psi. Pressure relief safety valves for power washing from brands such as general pump giant fluid controls more.

Dewalt oem 5140095 85 replacement pressure washer valve thermal relief dh4240. 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. This is referred to as a closed loop by pass. This video shows the unloader valve in a cut away of a 2700 psi homelite pressure washer.

It circulates through the pumps in the washer system and comes back to the inlet of the unloader.