401422 | Xylem | Pressure

Hoffman Specialty 401422 model 1A radiator steam vent air valve (non-vacuum) with 1/8" male NPT angle connection and 10 psi maximum pressure. The maximum operating pressure against which the vent can open is 1.5 psi. This float-type vent has an adjustable port for true proportional venting - 6 port settings from slow (1) to fast (6).