METHOD OF REPAIRING A LEAK IN A FLANGE OF A GAS PIPE

摘要

A method of repairing a pipe (11) containing a pressurised fluid and comprising at least one leak, for instance in a flange (10), including the steps of installing a flexible and sealed casing (12) engaging the pipe on each side of the leak site to enclose same, said casing comprising a valve arranged at the highest point if the fluid is a gas or at the lowest point if it is a liquid; installing a rigid and sealed casing (20) engaging the pipe on each side of the flexible casing and enclosing same; and injecting a polymerisable liquid material into the rigid casing, whereby the flexible casing is enclosed in a sleeve of polymeric resin following the polymerisation of the polymerisable material.