Thermal Relief Valve Replacement For Gas Powered Pressure Washers One Quarter Inch NPT, Fits Simpson Pumps AP3119462 10378947 740592 21783, 7101359 Compatible, Ideal For 510020 510022 510023 510026 510028 510030 Series Easy Install

Thermal Relief Valve for Gas Pressure Washers, 1/4 in NPT
✔️ Single unit, 1/4 in NPT thermal relief valve for Simpson

This thermal relief valve is a replacement part designed for gas-powered pressure washers. It protects pump seals by venting overheated water and letting in cool water to prevent heat buildup, extending pump life in rugged cleaning jobs. It’s commonly used on Simpson pump configurations and other compatible models.

✅ 1/4 in NPT connection for standard installations
✅ Compatible with pump parts 7101359, AP3119462, 10378947, 740592
✅ Prevents heat damage by venting hot water to the inlet
✅ Durable, corrosion-resistant body designed for long service life

💡 What is a pressure washer thermal relief valve used for in gas-powered systems? It protects pumps by venting excess heat and pressure, helping extend seal life and prevent failures. - handy safety device for gas-powered washers
- supports pump reliability by preventing seal wear
- easy to replace with standard 1/4 in NPT fittings
- ideal upgrade for Simpson pump replacements