Liner for repairing a lateral connection of a pipeline

摘要

One invention relates to a liner (5) for repairing the connection between a main pipeline (100) and a lateral pipe (200). The liner (5) includes a main pipeline lining part (12) that in use forms a tubular portion for lining an inner circumferential portion of the main pipeline (100) and a lateral pipe lining part (14) that in use forms a tubular portion for lining an inner circumferential portion of the lateral pipe (200). Located between the lateral pipe lining part (12) and the main pipe lining part (14) there is a transition zone (16) that in use is arranged to line a junction zone (150) between the main pipeline (100) and the lateral pipe (200). The transition zone (16) of the liner (5) is formed integrally with the main pipeline lining part (12) and the lateral pipe lining part (14).

主权项

1. A liner for lining a connection between a main pipeline and a lateral pipe, said liner including
a main pipeline lining part that in use forms a tubular portion for lining an inner circumferential portion of the main pipeline and a lateral pipe lining part that in use forms a tubular portion for lining an inner circumferential portion of the lateral pipe, wherein between the lateral pipe lining part and the main pipe lining part there is a transition zone that in use is arranged to line a junction zone between the main pipeline and the lateral pipe, said transition zone of the liner being formed integrally with the main pipeline lining part and the lateral pipe lining part such that there is no circumferential join or seam, and wherein the liner is made from a single blank of material which is folded along a line of symmetry and then stitched or otherwise joined together adjacent to or along two edges to form connections establishing the main pipeline lining part and the lateral pipe lining part.