Thermal Relief Valves

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Inlet
Inlet
Outlet
Outlet
Max PSI
Max PSI
Trigger Temperature
Trigger Temperature
Manufacturer
Manufacturer

Our thermal relief valves are designed to protect your pressure washer pump from damage due to excessively high temperatures within the pump head. These high temperatures are typically caused by running a pressure washing in bypass mode, meaning leaving the unit running without the trigger gun being pulled, prohibiting water flow. This bypass mode can be detrimental to the pressure washer pump seals, pump valves and other components.

The thermal relief valve plumbs into the pressure washer pump inlet and opens when the temperature reaches typically 145 degrees F. It ports hot water out of the pump, allowing cool water to enter, reducing the temperature inside the pump head and saving the pressure washer pump seals from damage.

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Online Shopping Unavailable on Wed. Oct 9th

Our website will be unavailable off and on throughout the day on Wednesday, October 9th, 2024 as part of planned updates.  As a result, we are also turning off our online store for the day to prevent any potential errors in order processing.  

If you would like to place an order on Wednesday, October 9th please call our customer service department at (888) 269-0172 between 7:30a-4:00p (PDT), and we will be happy to assist you.

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