| 摘要 |
PROBLEM TO BE SOLVED: To provide a low-cost air-operated valve. SOLUTION: In the air-operated valve 1, pistons 23, 24 are allowed to slide in a cylinder by utilizing operation-air to drive a valve part 2. The cylinder comprises a pipe-like exterior member 21, a first closing plate 26A attached to one opening of the exterior member 21, and a second closing plate 25 attached to the other opening of the exterior member 21. The exterior member 21 is attached preferably by caulking and the like to the first and second closing plates 26A, 25. COPYRIGHT: (C)2008,JPO&INPIT
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