Watts 0121470 Relief Valve Els PW 29614 The built-in manual purge lever

The built-in manual purge lever allows for rapid filling and air purging

The hub is machined for a standard 1/2 inch bore

Always check your specific wiring diagram for the part number

Look for heating elements failing to turn on

this Maxitrol regulator spring ensures the poppet-type valve responds accurately to downstream demand

Watts 0121470 Relief Valve Els PW 29614 The built-in manual purge leverThe 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