| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint with a fixing seat in which the joint body and the circular seat is separated, bond between the joint body and the circular seat can be easily and certainly fixed, and production efficiency is considerably improved at the installation thereof even though cutting work of a joint body with a circular seat is not performed, and to provide an installation method therefor.SOLUTION: A polygonal shape part 7 is formed at the outer periphery of a joint body 1 having a connection part, and an engagement part 11 is formed at the outer periphery of the polygonal shape part 7 while opening holes 32 each having an edge bending part 31 are formed at a circular flange seat 2. Moreover, the opening hole 32 is pressure-bonded and fitted into the engagement part 11, and the edge bending parts 31 corresponding to respective flat surfaces 8 of the polygonal shape part 7 are tightly fixed. |
