A branch pipe lining assembly and a pipe lining method

摘要

A branch pipe liner (1A) for lining a sewer branch pipe, which is formed with a rigid annular planar collar (1B) at one end, wherein the rigidity does not end at the planar collar but some of the end portion of the branch pipe liner at which the collar is formed is also rigidified, and this rigidified portion (0.5 to 50 mm high) can be used as a guide for fitting the collar in the branch pipe opening of a main pipe (10) to which the branch pipe (11) is connected; furthermore, the planar portion of the collar has a thickness (t1) of 1 mm or greater and a bending elasticity of 30 kg/mm<2> or greater. <IMAGE>