FIELD: pipelines.
SUBSTANCE: invention relates to a system of steel collapsible pipelines designed to create temporary factory pipeline systems and can be used in oil refining, petrochemical, chemical and other industries. The system of steel collapsible pipelines consists of linear sections and standard fittings with at least two flanges at the edges, and also comprises at least one auxiliary pipeline route that can be switched from one auxiliary flow to another or from one repaired vessel to another configured for complete opening of auxiliary pipelines by shifting to a neutral position by installation of a flange plug.
EFFECT: temporary factory piping systems, linking process equipment with pipelines for supplying auxiliary flows for the period of repair activities.
3 cl, 2 dwg
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