WILTEEXS Thermal Release Valve for Pressure Washer Pump 1 4 Inch NPT 2-Pack

1. 1/4" NPT 2. The outside diameter of male thread is 0.54 inch 3. Made of brass. 4. Max. inlet pressure of pumps is 200 PSI. Application Thermal Relief Valve protects pressure washer pumps operating in a safe temperature range to prevent overheating. Tips The thermal relief valve will open to release hot water and allow cold water to enter the pump. So it continues to operate at a safe temperature. If the pump have ever overheated, the thermal relief valve must be replaced.