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The stainless steel power element and integrated check valve functionality make this an essential component for bi-flow heat pump operations
While internal vent limiting options exist
Precision Seating: Features a resilient silicone seat for tight shut-off after lift
High Nominal Capacity: Delivers up to 14 tons of cooling capacity
Watts 0121470 Relief Valve Refrigerant The stainless steel power elementThe 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
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