The York S1-9951-0931 is a precision-engineered LP Gas Orifice designed for specific burner manifold applications in York

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this valve is a standard component for large-scale boilers

Enhanced System Safety: SPST configuration naturally monitors for obstructed flues or failed draft inducer performance

Conbraco 24-353-00 Gauge Freon The York S1-9951-0931 is aThe Conbraco 24 353 00 Gauge is a professional grade liquid level water gauge designed for demanding boiler and pressure vessel applications. Built with a heavy pattern rough bronze body, this 3 4" NPT set provides industrial strength performance for commercial HVACR and steam systems. It features automatic ball checks in both the upper and lower arms, which conform to ASME power boiler code requirements by instantly seating to prevent fluid loss in