METHOD AND APPARATUS FOR REPAIRING A PIPELINE

摘要

An apparatus (10) for inserting a lining material into a pipeline (100) incl udes an elongated carrier device (12) having a hollow central portion (24) which encloses a liner-bladder assembly. The liner-blad der (26, 36) assembly includes an elongated inflation bl adder (36) which engages an open end (16) of the carrier device and expands under fluid pressure out of the carrier device. The pipe liner (26) is frangibly attached to the inflation bladder (36) such that its attachment an chors the liner with respect to the open end of the carr ier device to permit accurate placement of the liner within a pipeline proximate to a c omprised section of the pipeline. The frangible connecti on (82) breaks when the carrier device and inflation bladder are removed from t he pipeline.