| 摘要 |
A rapid opening pressure regulating valve reduced in size and having improved flow rate characteristics, a fire extinguishing apparatus using the same, a high-pressure gas cylinder apparatus, and an apparatus rapidly supplying a fluid. When the rapid opening pressure regulating valve is assembled, a valve element member body ( 22 ) is inserted into a body ( 1 ), and a valve element ( 21 ) is inserted into an inlet nozzle part ( 11 ) from the inlet ( 11 a) thereof and fixed to the lower end of the valve element member body ( 22 ). The valve element ( 21 ) is fixed to the valve element member body ( 22 ) by, for example, threading the inner circumferential surface of the valve element ( 21 ) and the corresponding lower end outer peripheral surface of the valve element member body ( 22 ) and screwing the lower end of the valve element body ( 22 ) into the valve element ( 21 ). Since a valve seat ( 13 ) can be provided on the valve element ( 1 ), the valve element member body ( 22 ) can be inserted from the upper end of the body ( 1 ) and the valve element ( 21 ) can be inserted from the inlet ( 11 a) of the body ( 1 ), and the valve element member body ( 22 ) and the valve element ( 21 ) can be installed so as to hold the valve seat ( 13 ), a conventional barrel part can be eliminated and the number of members can be reduced to reduce the size of the rapid opening pressure regulating valve.
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