FIELD: piping equipment. SUBSTANCE: flexible thermoplastic hose is inserted into pipeline by turning it inside out under surplus pressure with simultaneous pressing against the surface to be coated and synchronous propulsion of the turned-out section by heating the hose to viscosity which ensures its adhesion to the surface to be coated. The hose is made by intertwining the thermoplastic and thermosetting threads. Thermoplastic threads form a warp and a part of weft whose structure has thermostable threads. The threads are used in the following ratio, wt.-%: thermostable threads, 60-70; thermoplastic threads, 30-40. EFFECT: higher efficiency. 2 dwg
