| 摘要 |
PROBLEM TO BE SOLVED: To provide a feed valve device capable of preventing a cleaning pin from falling off from a main valve and being lost during assembly in a plant or maintenance work in an installation site. SOLUTION: The feed valve device 100 includes: a feed valve 58 having a main valve 62, a back pressure chamber 82, an introduction aperture 84, a pilot water passage 86, and a pilot valve 88; and the cleaning pin 97 passed through the introduction aperture 84 to slide inside the introduction aperture 84 for exerting cleaning action when the main valve 62 moves forward/backward. In the cleaning pin 97, a latching part 104, which is shaped to bend to a straight shape part 102 sliding inside the introduction aperture 84 and latches in the coming off direction of the cleaning pin 97 with respect to the main valve 62, is arranged in the front edge side part of the cleaning pin 97 through the main valve 62. COPYRIGHT: (C)2011,JPO&INPIT |
