Lochinvar & A.O. Smith 100170490 Gas Valve 321702-401 and 125 MBH configurations

and 125 MBH configurations

this regulator is rated for a 25 Psig maximum supply

Whether you are performing a seasonal furnace tune-up or an emergency gas valve manifold repair

Enhanced Safety Logic: Integrated Low Air After D08 functionality prevents hazardous operation during venting failures or intake blockages

Lochinvar & A.O. Smith 100170490 Gas Valve 321702-401 and 125 MBH configurationsThe Lochinvar & A. O. Smith 100170490 Gas Valve is a critical OEM replacement part designed for high efficiency hydronic systems. As an essential component for natural gas combustion control, this valve regulates fuel delivery to the burner assembly with high precision, ensuring the manifold pressure remains within manufacturer specified tolerances. Built for the rigorous demands of commercial and residential boilers, the 100170490 is engineered to