| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-reaction type joint in which each component is easily manufactured, and which can be assembled by utilizing an existing pipe member and easily manufactured at low cost.SOLUTION: A non-reaction type expansion joint comprises such a structure that a pair of first pipes 5, a pair of second pipes 11, a coupling pipe 19, and a pair of first narrow rings 13 and a pair of second narrow rings 17 are screwed and fastened to each other. In the non-reaction type expansion joint, a piston 8 is fixed to the outer periphery of the first pipe 5 with a retaining ring 3a. |
