AIR VENT - HOFFMAN #79

• For use on hot or cold or glycol water mains and process applications with specific gravity greater than 0.7
• Tapped at top for 1-3/48" NPT safety drain connection for discharging moisture
• Removable top
• Built-in Check Valve
• 1-3/42" NPT female and 3-3/44" 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 DegreeF (121 DegreeC)