| 摘要 |
A method for repairing multiple conduits using a vacuum collapsed, elastic liner involves providing a quantity sufficient for multiple repairs to the work sight and inserting a length into the damaged conduit. The protruding liner is then heat-sealed to prevent volume flow between the inserted liner and the remaining liner. The inserted liner vacuum is broken enabling the inserted liner to reassume its original size and shape. In doing so the expanded liner seals the problematic breeches. A retaining sleeve is then inserted in the expanded liner to hold it in place.
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