Hoffman 76, 1/2" x 3/4" Straight Main Steam Vacuum Valve

Vacuum Valve Float-type themostatic vent For medium and large one-pipe vacuum systems Single non-adjustable port 1⁄2" NPT female and 3⁄4" NPT male straight shank Install 6-10" (150-250mm) above horizontal return and 8" (450mm) above the boiler water line Maximum operating pressure 3 psig (0.2 bar) Maximum pressure 15 psig (1.0 bar)