| 摘要 |
<p>The present invention relates to a method and a device for blocking fluid in a pipe (1) onto which a positioning unit (2) is hermetically mounted and through which a hole is drilled in the pipe, with hermetic sealing preserved, so an expandable body (8) can be inserted, with the aid of a blocking implement (7) enclosed in a support tube (9), and into the pipe (1) for temporary blocking of the flow of fluid in the pipe, thereby supporting the expandable body during insertion, after insertion and especially during and after its expansion against the flow of fluid in the pipe to enhance its ability to withstand the high pressure of the flowing fluid. <IMAGE></p> |
