Filling valve having a liquid chamber, a gas chamber and a medium chamber, and filling machine comprising the same

摘要

A filling valve (12) including: a hollow housing (21); a moving valve assembly (24) slidingly mounted in the housing (21), the moving valve assembly (24) and the hollow housing (21) together defining a liquid chamber (30) and a gas chamber (32); a liquid inlet (46) for putting the liquid chamber (30) into communication with a liquid supply pipe (14); a gas inlet (47) for putting the gas chamber (32) into communication with a gas supply pipe (17); wherein the hollow housing (21) and the moving valve assembly (24) together define a medium chamber the (33) located between the liquid chamber (30) and the gas chamber (32), and wherein the filling valve (12) further comprises: a first diaphragm (35) linking the valve assembly (24) to the housing (21) between the liquid chamber (30) and the medium chamber (33), and a second diaphragm (36) linking the valve assembly (24) to the housing (21) between the gas chamber (32) and the medium chamber (33).