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Built with a heavy-duty brass body and a 1/2" NPT connection
or water in the collection chamber
this component features a Single Pole Double Throw (SPDT) configuration
Enhanced Durability: Robust SPST (Single Pole Single Throw) internal contacts designed to withstand thousands of heating cycles without pitting or sticking
This specific model is a non-regulated gas valve
Lochinvar & A.O. Smith 100288534 Gas Valve 321702-401 Built with a heavy-duty brassThe Lochinvar & A. O. Smith 100288534 Gas Valve is a critical OEM replacement part designed for natural gas fired heating systems, specifically commercial boilers and high output water heaters. As a standing pilot gas valve, it provides reliable mechanical gas flow control, ensuring a consistent pilot flame and stable burner ignition across rigorous duty cycles. This unit is the direct replacement for 100171890, engineered to meet the precise manifold