PROCESS FOR INTERNALLY LINING A CONDUIT

摘要

A process for internally lining a conduit with a sheath comprising a tube of flexible covering material provided with an outer adhesive coating and inner tube providing a smooth internal surface, the inner tube being integral with the tube of covering material, at least one expansible plug member being introduced into one extremity of said sheath when the sheath is located in the conduit so to enable internal fluid pressure to be applied directly to the sheath until its adherence to the conduit.