valve drain, pressure relief valve
Spring-loaded valve set to open at a pressure slightly above the operating pressure, used to relieve excessive pressure and surges. See [[air relief valve]].
Authorization Path: 2.4.5.2.20.15
Spring-loaded valve set to open at a pressure slightly above the operating pressure, used to relieve excessive pressure and surges. See [[air relief valve]].
Authorization Path: 2.4.5.2.20.15