DEVICE FOR RADIAL EXTENSION OF THE END-SECTIONS OF A DRAWING HOPE FOR DRAWING DEFECTED PIPE, DRAWING HOPE AND METHOD FOR INSTALLING DEFECTED PIPE IN A DEFECTED PIPE

摘要

The invention relates to a device (1) for radial expansion of the end portions (2a, 2b) of a lining impregnated with a hardenable reaction resin (2) of fiber material for lining defective pipelines (4),having an expandable closed expansion body (10) of a flexible air-permeable material, which is designed to be inserted into an end portion (2a, 2b) of the lining tube (2), and a flow-connected supply line (14) to the interior (12) of the expansion body (10), which is connectable for loading the interior (12) of the expansion body (10) with a pressurised gas (16a) to a pressurised gas source (16). The invention further relates to a lining hose (2),in the end sections (2a, 2b) each such a device (1) is inserted and a method for introducing such a lining hose (2) into a pipeline to be renovated (4).