This 1-inch NPT pressure relief valve is engineered with a rugged bronze body construction and is factory-calibrated to a 75 PSI set pressure

reducing labor time and the risk of internal seal distortion

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Complete Kit: Includes the 3/4 HP motor

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Utica-Dunkirk 240009323 Drain Valve 321702-401 This 1-inch NPT pressure reliefThe Utica Dunkirk 240009323 Drain Valve is a critical service component engineered for professional hydronic heating applications. Featuring a 3 4" NPT connection, this brass boiler drain valve provides a high flow solution for system flushing, sediment removal, and preventative maintenance. Designed to withstand the rigorous thermal cycling and pressure variations common in cast iron and condensing gas boilers, it serves as a direct OEM replacement