Hoffman H79 Water Vent Valve 75 PSI

Model 79 Water Main Air Vent Valve, Cast Brass, Tapped at top for 1/8" NPT Safety Drain Connection for Discharging Moisture, 1/2" NPT Female and 3/4" NPT Male Straight Shank, Built-In Check Valve, Removable Top, Maximum Operating Pressure 150 PSI, Maximum Pressure 75 PSI, Maximum Temperature 250°F, for use on High Pressure Hot or Cold Water or Glycol Mains and Process Applications with Specific Gravity greater than 0.7