71C, 1/2" x 3/4" NPT STRAIGHT STEAM CONVECTOR AIR VALVE Vendor_Winters Instruments • Ten bolt flange

• Ten bolt flange

–7B switch proportional 0-135 ohm control to maintain constant boiler water level

Minimum air loss

Hoffman 75 Air Valve Data Sheet

• Maximum pressure 150 psi (10

71C, 1/2" x 3/4" NPT STRAIGHT STEAM CONVECTOR AIR VALVE Vendor_Winters Instruments • Ten bolt flangeConvector Steam Vents Model 71C Part No. 401467 Air Valve (non vacuum) Float type vent Single non adjustable port Meets Federal Specification WW V 151 for Type 1 Non Adjustable Valves Telescopic siphon tube with angle cut assures drainage 18" NPT straight shank (71A), 14" NPT straight shank (71B), 12" NPT female, and 34" NPT male straight shank (71C) Maximum operating pressure 11 psig (0. 8 bar)* Maximum pressure 15 psig (1. 0 bar) *Drop away pressure