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Cartridge Relief Valve | Safety Valve | Pressure Relief Valve

Hotsy Cleaning Systems has for many years used a cartridge relief system on their hot water pressure washers, such as the Hotsy 555ss and 790ss, recently changing to either a rupture disk or pressure relief valve. Performing similarly to the pressure relief valve, our cartridge relief is a two-part system, requiring both the cartridge relief valve and a seat. This set plumbs into the coil outlet manifold and in the case of a malfunction of a pressure washer component (such as when the burner does not shut off when the trigger gun is released) opens to relieve high pressure hot water from the coil.

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8.707-259.0 Hotsy Cartridge Pressure Relief Valve for Hotsy 555ss and 790ss Cartridge Relief Valve

Use with Hotsy Seat
Part no. 87072610

Our Price: $28.90
8.707-261.0 Hotsy Cartridge Pressure Relief Valve Seat for Hotsy 555ss and 790ss Relief Valve Seat

Use with Hotsy Cartridge Relief
Part no. 87072590

Our Price: $10.20