1A, 1/8" ADJUSTABLE ANGLE STEAM RADIATOR AIR VALVE Excess Pressure Pump so to change the rotation

so to change the rotation on the pumps simply loosen the bolt that holds the pump-end to the motor

Model 21 140–200°F (60–93°C)

are available with 1

Compact stainless steel construction with ceramic sensor

1A, 1/8" ADJUSTABLE ANGLE STEAM RADIATOR AIR VALVE Excess Pressure Pump so to change the rotationRadiator 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