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The internal diaphragm isolates the spring chamber from the process media
Optimized Performance: Provides 57
while the reversible rotation capability provides the installation flexibility needed in the field
this kit features specific delay-on-break and delay-on-make timers (30 to 105 seconds ON / 90 to 150 seconds OFF) to protect the compressor and improve heat exchanger efficiency
ensuring exact fitment and factory-spec calibration
Lochinvar & A.O. Smith 100171950 Valve 323613-751 The internal diaphragm isolates theThe Lochinvar & A. O. Smith 100171950 Valve is a critical OEM replacement gas valve kit engineered specifically for Lochinvar Knight WH399 wall mount boilers. This high precision combustion control assembly includes the gas valve, venturi gasket, and necessary hardware to ensure a zero governor manifold pressure environment. As a veteran grade commercial boiler part, it regulates fuel flow based on the negative pressure signal generated by the blower,