| 摘要 |
PROBLEM TO BE SOLVED: To improve sealability by securing sufficient connection strength in an interface direction and in a lateral direction, and working efficiency by facilitating connection with a pipe arranged in a renewal construction and a new construction, and to reduce cost.SOLUTION: In a valve for a fire protection facility, a movable structure is arranged on one side of a valve body 12 of an automatic valve 10 capable of being movable in an axial line direction of a pipe 30. The movable structure is provided in which an outer screw 24 of a movable connection part 22 integrated with a valve side flange 20 is screwed into a screw hole 18 of a connection opening part 16 integrated with the valve body 12 to be capable of moving in the axial direction. A seal 26 is inserted between the connection opening part 16 and the movable connection part 22 to seal them. Fixation of the movable connection pipe part 2 against the connection opening part 16 of the valve body 12 is performed by using a stopper structure consisting of a fixing bolt 25 and a guide groove 26. |
