Description
The Watts 40XL-4-1 Temperature and Pressure Relief Valve 0163725 is a safety control component that regulates excess temperature, and pressure conditions at 150 PSI with a 1″ NPT connection and 4″ probe. It works on a spring-loaded mechanism with a thermal sensing element, that opens to release when preset limits are surpassed. Installed in HVAC systems like boilers or water heaters in hydronic systems, it is mounted in ports to be in direct contact with the system. Its operation supports avoid the accumulation of overpressure, ensures the safe operation of the system, and maintains stable operating conditions.
