| 摘要 |
PURPOSE:To apply a lining to a complicated pipe line such as a T-pipe or the like, by inserting a coiled spring having approximately the same diameter as the inner diameter of the pipe line into the service tie, the T-pipe section, or the L-pipe section of the pipe line. CONSTITUTION:At a T-pipe section, three pipes 18a, 18b and 18c are connected to a T-joint, the pipes 18a and 18b constitute a straight pipe to which the pipe 18c is joined perpendicuraly. By inserting the coiled spring 10 between the pipe 18a and the pipe 18c, the folded section 91 of the lining material 9 can go forward smoothly in the T-joint 17. In case the lining should be applied between the pipe 18b and the pipe 18c, the coiled spring 10 is inserted between the pipes 18b, 18c. In case of a L-pipe, the lining can be similarly carried out. |
