preventing fluid loss while automatically venting non-condensable gases that compromise pump suction and heat transfer efficiency

Engineered for mission-critical maintenance of pneumatic and electric commercial valve bodies

Durable Construction: Lightweight aluminum blades reduce bearing wear

this 243-series orifice ensures mechanical compatibility and repeatable lock-up performance

it meets UL 1585 and CSA C22

Lochinvar & A.O. Smith 100109316 Burner Assembly 321702-401 preventing fluid loss while automaticallyWhen you're out in the field servicing high recovery natural gas units, having the correct Lochinvar and A. O. Smith OEM replacement parts is critical for restoring system integrity. The 100109316 Burner Assembly is a high performance FVIR burner assembly utilizing a #33 orifice specifically designed for Natural Gas (NG) applications. This 100109316 gas water heater burner is engineered to meet Flammable Vapor Ignition Resistant (FVIR) standards,