Description
York S1-9951-1491 Natural Gas Orifice 25 is a precision metering component used to regulate fuel flow into burner assemblies. It features a calibrated 0.1495″ opening that controls the volume of natural gas delivered for combustion and helps maintain consistent flame features. It is applied in HVAC systems within gas-fired heating equipment to manage gas distribution at the burner inlet. The orifice support controlled fuel-air mixing and stable ignition conditions during heating operation, ensuring uniform burner performance across operating cycles.
