Flexible long-dimensioned flat-sheathed pipelines are made from 150 to 1200 mm in diameter, up to 100 m. They are characterized by low weight (one meter of a flat-rolled pipeline with a diameter of 450 mm and designed for a working pressure of 0.4 mPa weighs no more than 4.5 kg).

The low mass and flatness makes it possible to transport them wound on a drum, by any means of transport including aviation. They are recommended to be used as operational pipelines for hydronic refineries to shore dumps, for construction of temporary waterways and earth dams by means of hydromechanization, as primary depositions of cards of deposit. (f 1, f 2)

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