METHOD FOR COUPLING REPAIR OF DEFECT SECTION OF OPERATING PIPELINE WITH CONTROL OF QUALITY OF INSTALLATION

摘要

The invention relates to technology of repair of pipelines, mostly to technology of coupling repair of main gas high pressure pipelines. One installs coupling to defect section of pipeline, ends are sealed and under-coupling space is filled with self-curing mass under pressure compared to pressure inside pipeline. Before pressing self-curing mass one performs hydraulic tests of coupling. As liquid for hydraulic tests one uses rust solvent or liquid containing adhesive. Defect places of the coupling are determined through liquid flow out. Colorant can be added to liquid for hydraulic tests. Technical result is in increase of quality and reliability of repair.