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Multilayer Pipeline in a polymer material, device for manufacturing of the multilayer pipeline and a method for manufacturing the multilayer pipeline

A multilayer  pipeline (1) which includes at least an inner fluid-tight ply (11) which consists of a first thermoplastic polymer material: Рan inner fiber-reinforced thermoplastic polymer ply (14) which includes a wrapped fiber reinforcement, and which surrounds the inner fluid-tight ply: Рa first intermediate ply (13) which consists of a second thermoplastic polymer material, Рan outer fiber reinforced thermoplastic polymer ply (12) which includes a wrapped fiber reinforcement, wherein at least one of the inner fiber-reinforced thermoplastic polymer ply (14) and the outer fiber-reinforced thermoplastic polymer ply (12) includes at least one fiber-containing layer (14a-b, 14c-d; 12a-b, 12c-d) and one reinforcement-free layer (14c, 14f, 12c, 12f) a machine assembly (30) for producing the multilayer pipeline (1) and a method of producing the multilayer pipeline (1).

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