HOFFMAN #4 STEAM THERMOSTATIC AIR VENT 3/4M - 1/2F
401416
Model # 4
4 THRMO STM VENT 1/2f 3/4m 25#
Thermostatic air vent
For steam systems and process equipment
Operates on temperature change only; does not close against water
Must be installed 6-10″ (150-250mm) above horizontal return and 18″ (450mm) above the boiler water line
1/2 NPT female and 3/4 NPT male straight shank
Maximum operating pressure 25 psig (1.7 bar)
Maximum pressure 25 psig (1.7 bar)