| 摘要 |
A pneumatic valve device comprising an integral valve body having first, second, third, fourth, fifth, sixth and seventh openings; a regulation assembly for supplying gas in the second opening; a relief valve in the seventh opening; a pressure gauge in the sixth opening; and an inlet connector in the fifth opening. The first opening communicates with the second opening and the third opening respectively, the first opening has external threads releasably connected to a compressed gas cylinder, the third opening has one end communicating with an outside surface of the valve body and the other end communicating the regulation assembly, the fourth opening interconnects the compressed gas cylinder and the inlet connector, and the fifth opening, the sixth opening, and the seventh opening are equally spaced apart around an outer surface of the valve body and have the same elevation. The first, third and second openings communicate with each other.
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