1A, 1/8" ADJUSTABLE ANGLE STEAM RADIATOR AIR VALVE Excess Pressure Pump are available with 1

are available with 1

If the control is in a low water condition when there is an interruption of power

DESCRIPTION & FEATURES: Excellent flow regulation and leak tight

– Coffee urns

Model 21 140–200°F (60–93°C)

1A, 1/8" ADJUSTABLE ANGLE STEAM RADIATOR AIR VALVE Excess Pressure Pump are available with 1Radiator Steam Vents Model 1A Part No. 401422 Air Valve (non vacuum) Float type vent Adjustable port for true proportional venting 6 port settings from slow (1) to fast (6) 18" NPT angle connection 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 Radiator Steam Vent Data Sheet