Watts 0121470 Relief Valve Els PW 29614 Avoid use on deep sump
Baker’s notes & crumb story
Description
Avoid use on deep sump models
Always check your specific wiring diagram for the part number
the Watts LFMMV-M1-US includes integral stainless steel check valves in both the hot and cold inlets to specifically block cross-migration and pressure imbalances
The built-in manual purge lever allows for rapid filling and air purging
Its non-bellows EPDM seal provides superior performance compared to traditional mechanical bellows
Watts 0121470 Relief Valve Els PW 29614 Avoid use on deep sumpThe Watts 0121470 (LF174A) 3 4" water pressure relief valve is a critical safety component designed for hot water heating boilers and hydronic systems. Engineered with a lead free copper silicon alloy body, this valve ensures compliance with low lead regulations while providing a high capacity discharge of 1,320,000 BTU hr at a fixed 75 PSI set pressure. The large diaphragm operated design minimizes the risk of seat sticking, while the non mechanical