AIR VALVE HOFFMAN #79 STEAM VENT

Water Main Vent Valve

• For use on hot or cold or glycol water mains and
  process applications with specific gravity greater than 0.7
• Tapped at top for 1⁄8″ 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)