Hoffman
Hoffman Air Valve 401494 792, High Pressure Water Vent Valve
High Pressure Water Vent Valve
For releasing air from hot or cold water or glycol mains,hydronic heating and chilling systems, storage andprocessing tank filters, centrifugal pumps with specificgravity greater than 0.7
Cast iron body and cover, stainless steel interior
Maximum operating pressure 250 psig (17.3 bar)(Maximum pressure against which the vent can open).
Maximum hydrostatic pressure 350 psig (24.2 bar)
Maximum temperature 300°F (149°C)