FIELD: construction of pipelines. SUBSTANCE: pipe ends are worked, circular strips are placed in them. Lining layer is applied to the pipe internal surface and the pipe ends are joined by welding. Heat-insulating cover is applied to the pipe end internal surfaces before strips are placed. After application the lining layer is flanged on the strip end surfaces. Prior to welding, a netted ring is installed in the weld root to overlap the end surfaces of the lining layer. EFFECT: facilitated procedure. 1 dwg
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