METHOD FOR PIPE-LINE LINING WITH FABRIC Russian patent published in 2000 - IPC

FIELD: protection of pipe-line inside surface against corrosion, applicable in hydraulic engineering, land reclamation, petroleum and chemical industries. SUBSTANCE: a hose made of fabric, impregnated by liquid adhesive, rolled up in a spiral along the longitudinal axis is introduced in the pipe-line under vacuum set up from the opposite end, for introduction of the spiral hose in the pipe, expansion and roll-on of fabric use is made of a torus separator. EFFECT: reduced expenditures connected with manufacture of the hose, enhanced quality of pipe-line lining. 1 cl