Description
The Hoffman Specialty 401494 model 792 is a high pressure water vent valve with a 3/4" female threaded inlet and a 1/2" female threaded outlet. This cast iron air vent has a maximum operating pressure of 250 psig and a maximum temperature of 300 degrees Fahrenheit. High pressure water vent valves release air from hot or cold water or glycol mains, hydronic heating and chilling systems, storage and processing tank filters, and centrifugal pumps with a specific gravity greater than 0.7.








