Description
The Watts F121585 1″ Temperature & Pressure Relief Valve 100PSI LFN240X-6 2.817K operates through a spring-loaded internal mechanism that responds when internal load conditions rise beyond the preset limit in HVAC systems and connected water heating circuits. The internal disc assembly shifts position to open a discharge path, allowing excess fluid to exit and reducing internal buildup within the line. After conditions return to normal range, the mechanism automatically reseats to restore closed flow control. It is installed in compatible piping arrangements to maintain consistent release behavior across repeated operating cycles in heating and water distribution equipment.
