Multilayer plastic pipe for water supply and heating systems

The multilayer plastic pipe for water supply and heating systems being applied for belongs to devices used in industry and housing, including for water supply and heating buildings and structures, production shops, etc, The technical result consists of constructional execution of the pipes, in which the mounting technology in water supply and heating systems is simplified while the required physical and mechanical parameters, such as mechanical durability, the coefficient of linear thermal pipe expansion, resistibility to oxygen diffusion, and compatibility with standard polypropylene fittings is provided. The technical result is achieved by introducing into no less than one layer of the pipe of a linear thermal expansion coefficient stabilizing additive made from fiber glass or basalt fiber or their mixture in the amount of 15-29% by mass with the rest being polypropylene. With this, the ratio of the thickness of the layer with a stabilizing additive to the sum of the thicknesses of the neighboring interior