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This 2-pipe pneumatic fitting features dual angle fittings specifically designed for surface-mounted T-4000 series thermostats where exposed tubing is utilized
most notably the York D1EG090N13046E model series
it completes a low-voltage circuit to a Warrick level relay
this switch provides precise thermal protection
Lochinvar & A.O. Smith 100167445 Valve This 2-pipe pneumatic fitting featuresThis genuine Lochinvar and A. O. Smith 100167445 Air Vent Valve is a critical component for maintaining hydraulic stability in high efficiency heating systems. As a direct replacement for the RLV30000 and RLV2023, this valve is engineered to eliminate entrained air from the heat exchanger, preventing oxygen related corrosion and ensuring consistent heat transfer. It is specifically designed for integration with Lochinvar Knight XL KBN399 800 and FTXL
