| 摘要 |
PROBLEM TO BE SOLVED: To provide a valve device enabling the easy visual confirmation of the opening/closing state of a stop valve from the outside and manufacturable by a simple structure at low cost. SOLUTION: A closing member 12 is inserted into a closing valve chamber 9 inside a housing 2, and an operation handle 15 interlocking with the closing member 12 is fitted to the outer surface of the housing 2. The valve device comprises an opening and closing indicator 17 indicating the opening/closing state of the stop valve 8. The opening/closing indicator 17 comprises a moving member 19 installed around the rotating axis 16 of the operation handle 15. The moving member 19 is advanced and retreated in the direction of the rotating axis 16 according to the rotation of the operation handle 15. The moving member 19 comprises a covering part 24, and an indication part 21 is installed around the rotating axis 16 on the inner side of the covering part. The indication part 21 is formed to be unmovable in the direction of the rotating axis 16. The moving member 19 is switched between a shielding attitude X in which the covering part 24 covers the outside of the indication part 21 and an indication attitude in which the covering part 24 comes out of the outside of the indication part 21 by the advancement and retreating. COPYRIGHT: (C)2007,JPO&INPIT
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