CUT-OFF VALVE

摘要

PROBLEM TO BE SOLVED: To provide a cut-off valve generating no deviation of opening/closing position of a valve in an electrically driven valve applied to fluid cut-off devices such as a gas cut-off device. SOLUTION: A projection 20 is provided in a rotary shaft through hole 21 of a flange 22, and a cutout of a skirt 18 with the cutout is brought into contact with the projection. The constitution preventing corotation by directly engaging a main body of the flange 22 with a valve element 15 improves operational accuracy of opening/closing valves of the valve element 15 and enhances the certainty. COPYRIGHT: (C)2005,JPO&NCIPI