REPAIRING PIPE, METHOD FOR REPAIRING PIPE LINES THEREWITH AND METHOD FOR REMOVING THE REPAIRING PIPE

摘要

The present invention provides a repairing pipe to be used in pipe lines such as gas conduits, water supply lines and sewer lines, chiefly those buried in the ground, for the purpose of repairing the pipe lines. More particularly, the present invention relates to a repairing pipe comprising a rigid pipe formed of a thermoplastic and a tubular woven fabric and a method for repairing or reinforcing a pipe line with the repairing pipe. Furthermore, the present invention relates to a method for removing the repairing pipe in its collapsed form out of the pipe line, for example when the repairing pipe installed in the pipe line has become superannuated or it has been collapsed for some reason or other to impair the function of the pipe line and hence it is desired to reline the pipe line.