Filling valve for lpg tank - pens against spring by inlet pressure, closes on second seat in response to temp drop when tank full

摘要

The filling valve is partic. intended for an LPG tank (13). It comprises a housing (1) with inlet (41) and a seat (3) for a slidable (tubular 15) closure member (2) which is opened against a spring (10) by the filling pressure to provide connection with its outlet (9) (via 7,21,20,15,17,8,19, valve 23,22 being opened against spring (24) to open port (17) and outlet (9). A temperature-sensitive element (27) causes the member to close (25) on a seat (26) adjacent to the outlet (9) when the tank is filled to a predetermined level. This element may be contained in an (annular) expansion chamber (28) (outlet near (34) connected (12) to the tank.FL.