Lining of pipelines or passageways

Details Lining of pipelines or passageways Lining of pipelines or passageways

B - Operations, Transporting

29

C

B29C 63/36 (2006.01) F16L 55/165 (2006.01)

Patent

CA 2073176

2073176 9110555 PCTABS00006 The method provides that a pipeline (10) or passageway (10) wall is coated using a backstop means, a body of resinous material (6) and an everting tube (5). These items are located inside the passageway to be lined and moved there along with the backstop (1) providing support for the bulk of resin material and also applying pressure via the resin material onto the everting face (16). When the everting tube is a resin absorbent material, the presence of the bulk of the fluent material prevents air from becoming entrained in the everting face and prevents voids in final lining. The resin may be introduced via a tee piece (12) through the lag thereof whilst the everting tube is introduced along the arms of the tee.

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