FIELD: pipelines.
SUBSTANCE: invention relates to production of flexible pipes for transportation of various media, e.g., hydrogen, borehole fluid and reservoir water with and without a gas ratio, as well as natural and associated gases, underwater and on land with laying on the land surface, in a trench, in an embankment, on an overpass or in a shell. Proposed is a flexible main consisting of a flexible polymer reinforced pipe equipped with fittings on both sides. The flexible polymer reinforced pipe comprises a multilayer liner with fluid and gas protection layers, a transversely reinforcing layer, a separation layer, a longitudinally reinforcing layer, a safety layer, and a casing.
EFFECT: expanded range of flexible polymer pipes and mains based thereon for transportation of various media, ensured gas impermeability and fluid impermeability of the main from the transported medium to the environment and vice versa, prevented damage to the main from axial loads, increased service life of the main and safety of operation thereof.
1 cl, 8 dwg
