| 摘要 |
PROBLEM TO BE SOLVED: To fill an LP gas cylinder, installed in a using place, with LP gas. SOLUTION: An LP gas filling valve comprises an LP gas feed passage 31 to intercouple the internal part of an LP gas cylinder 1 and the LP gas passage 10 of an on-off valve 4; an LP gas filling passage 32 to intercoupled the internal part of the LP gas cylinder 1 and an LP gas filling port in which an LP gas filling nozzle 50 is inserted; a main valve element 36 and a main valve seat 34 to open and close the LP gas feed passage 31; and an auxiliary valve element 37 and an auxiliary valve seat 35 to open and close the LP gas filling passage 32. The main valve element 36 and the auxiliary valve element 37 are connected to the two ends of an operation rod 38 so that when one of them performs opening operation, the other performs closing operation. A check valve 42 opened by the LP gas filling nozzle 50 is arranged at the LP gas filling port and besides mounted between the LP gas cylinder 1 and the on-off valve 4.
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