| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint for a pipe line restoration in which sealing characteristics are maintained and easily installed. SOLUTION: The joint 4 for a pipe line restoration includes: a press ring 5 locked to a ring member 5a suitable for a separation pipe 2' and the separation pipe 2' provided to the ring member 5a; a first seal ring 8 abutting on the outer circumference surface 2b' of the separation pipe 2' in the circumferential direction thereof; a second seal ring 9 abutting on the outer circumference surface 1b of a restoration pipe 1 in the circumferential direction thereof; and joint rings 6 and 7 having the second seal ring 9 on the inner periphery. The joint rings 6 and 7 are fitted over the separation pipe 2' and the restoration pipe 1, and connected to the press ring 5. The first seal ring 8 is pressed between the joint rings 6 and 7, and the press ring 5. The press ring 5 and the joint rings 6 and 7 connected to each other are slidable in the pipe axial direction relative to the separation pipe 2', and are locked by a fitting member 5b of the press ring 5 at a predetermined position where a connection part 7a of the joint rings 6 and 7 is connectable to an end part 2a of a pipe line component 2. COPYRIGHT: (C)2010,JPO&INPIT
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