This 1/4" orifice is critical for technicians managing natural gas pressure regulation in residential

maintaining consistent trip points over extended operational cycles

making it a versatile HVAC pressure switch for residential and light commercial equipment including furnaces and boilers from brands like Armstrong

This kit provides the critical internal components necessary to rebuild the valve to factory-standard performance

Enhanced Durability: Robust construction stands up to heavy-duty Raypak 1532 and Raypak 1802 heater cycles

Nordyne 919943 Control Board Els PW 17895 This 1/4" orifice is criticalThe Nordyne 919943 Control Board is a factory authorized OEM replacement designed for high performance HVAC system diagnostics and furnace sequence control. As the direct engineering successor to the 624693 Nordyne board, this component manages critical load timings and safety circuits within residential and light commercial equipment. This intermittent ignition control handles the blower motor delays, inducer fan cycles, and igniter sequence to