FIELD: manufacture of conveying pipe lines for liquid and gaseous media.
SUBSTANCE: proposed method includes supply of thin-walled pliable pipe lines-hoses flattened and rolled in bundles, welded thick-walled pipes and sometimes bandages to area of manufacture; pliable thin-walled pipe-hose line is blown for imparting cylindrical shape to it (at circular or prismatic section) for forming corrugations on its side surface; separate bundles with pliable pipe lines-hoses are butt-welded and continuous thin-walled pliable pipe line-hose is inserted into welded thick-walled pipes; separate thick-walled are connected in mains either by butt welding over perimeter or by means of bandages made in form of short thick-walled pipes and by means of detachable bolted joint with gaskets, seals or permanent welded joint.
EFFECT: enhanced reliability and efficiency; increased productivity.
7 cl
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