| 摘要 |
PURPOSE:To prevent accumulation of manufacturing errors of respective parts by forming a thick valve disc face in the direction of opening and closing for machining the same by optional volume after assembling the valve disc to make the same in desired dimension together with forming a holding portion on the valve disc for connecting the same to a machine tool. CONSTITUTION:A driving portion, which has O-ring (2), (8), (9) and the like easy to be broken through washing strongly, can be cleaned with simple washing process even in the case of washing strongly a passing through member (27), in which clean fluid flows through, by separating a passing through member (27) from a driving portion composed of a cylinder (1), piston (10), (11) and so on with a diaphragm (34). On this pneumatic actuating valve, a valve disc (38) fixed to a member body (30) is formed to be thick on the upper portion of a supporter (32) which holds the diaphragm (34) and an engaging flange (35) between the member body (30) and itself, together with forming a holding portion (33) having thread and, after assembling these members, the bottom face of the valve disc (38) is machined by optional volume and thereby accuracy can be increased.
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