AIR VALVE HOFFMAN #79 STEAM VENT

Water Main Vent ValveFor use on hot or cold or glycol water mains and
process applications with specific gravity greater than 0.7
Tapped at top for 1⁄8″ NPT safety drain connection
for discharging moisture
Removable top
Built-in Check Valve
1⁄2″ NPT female and 3⁄4″ NPT male straight shank
Maximum operating pressure 75 psig (5.2 bar)(Drop away pressure – maximum pressure against which the vent can open).
Maximum hydrostatic pressure 200 psig (13.8 bar)
Maximum temperature 250°F (121°C)