Patent ID: 6884373
Filing Date: 2005-04-26
Classification: F16L

Abstract:
1. A method for securing a branch assembly to a pipeline, wherein the branch assembly comprises a first part for locating on the side of the pipeline remote from the side from which the branch is to extend, and a second part incorporating the branch, the method comprising: positioning a containment ring on the pipeline at the required position on the pipeline and surrounding the area from which the branch is to extend; positioning an annular seal on the pipeline so that the seal is wholly radially within the containment; positioning the second part of the branch assembly onto the seal; positioning the first part of the assembly on the pipe line and securing the first and second parts together so as to compress the seal and leave an annular space between the first and second parts and the external surface of the pipeline; and providing sealing means for substantially preventing grout from escaping from the annular space, and introducing into the annular space grout that cures to bond the branch assembly in position on the pipeline.