Method and Apparatus for Repairing a Pipe Using a Transition Tube

摘要

Apparatus and methods for lining a pipe line having a first pipe section in communication with a second pipe section where the first pipe section has an inside diameter greater than an inside diameter of the second pipe section. A transition tube having an outside diameter substantially equal to the inside diameter of the second pipe section and a length substantially equal to or greater than the length of the first pipe section is inverted into the pipe line along with a liner. A resinous material applied to the liner cures and hardens the liner after inversion. The transition tube creates a surface against which the liner can be compressed to help prevent the liner from being overstretched in the wider first pipe section.

主权项

1. A method of repairing a pipe having a first pipe section in communication with a second pipe section, the first pipe section having a length and an inside diameter greater than an inside diameter of the second pipe section, the method comprising:
taking a liner tube; taking a transition tube having an outside diameter substantially equal to the inside diameter of the second pipe section and a length substantially equal to or greater than the length of the first pipe section; positioning the transition tube and the liner tube; moving the transition tube and the liner tube into the first pipe section so that the transition tube is on the outside of the liner tube in the first pipe section and the liner tube extends beyond the transition tube and within the second pipe section.