FIELD: vehicles.
SUBSTANCE: group of inventions relates to the field of pipeline transport and can be used during the main pipeline repairing with the defective section replacement. Replacement method of the protective casing pipes and placed in it the working pipeline includes the technological connectors implementation in the protective casing, through which the operational pipeline defective section is cut out. Intended for the working pipeline replacement pipe is placed in the pipe, intended for the protective casing replacement. Next, intended for the working pipeline replacement pipe is connected by welding, to the working pipeline. Intended for the protective casing replacement pipe is connected to the protective casing through the sockets and metal collars using the detachable mounting device. Then welding the pressed sockets with metal cuffs.
EFFECT: group of inventions can be used during the main pipeline repair with the defective section replacement.
2 cl, 8 dwg
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