Hoffman Air Valve 401485 78, 3/4" Straight Water Main Air Valve

For use on high pressure hot or cold water or glycolmains and process applications with specific gravitygreater than 0.7
Cast brass body
Tapped at top for 1„8" NPT safety drain connection fordischarging moisture
Body unscrews for easy cleaning
Built-in Check Valve
3„4" NPT straight shank
Maximum operating pressure 150 psig (10.3 bar)(Drop away pressure - maximum pressure against which the vent can open).
Maximum hydrostatic pressure 450 psig (31.1 bar)
Maximum temperature 250°F (121°C)