1B, 1/4" ADJUSTABLE VENT CONVECTOR-STEAM Winters Needle Valves McDonnell & Miller RS Sensors

McDonnell & Miller RS Sensors Data Sheet

– BSPT threads

• For residential or small one-pipe or two-pipe systems

Maximum pressure 50 psig (3

Model 21 provides wide temperature adjustment range for hot and cold water mixing

1B, 1/4" ADJUSTABLE VENT CONVECTOR-STEAM Winters Needle Valves McDonnell & Miller RS SensorsConvector Steam Vents Model 1B Part No. 401425 Air Valve (non vacuum) Float type vent Adjustable port for true proportional venting 6 port settings from slow (1) to fast (6) Telescopic siphon tube 14" NPT straight shank Maximum operating pressure 112 psig (0. 1 bar)* Maximum pressure 10 psig (0. 7 bar) *Drop away pressure (maximum pressure against which the vent can open). Hoffman Convector Steam Vent Data Sheet