| 摘要 |
<p>A split collar (1) for sealing a branch connection (8) which is connected to a pipe (2). The branch connection may be in the form of a ferrule from which a lead pipe extends. The lead pipe is flattened so as to be at least partially blocked, and the flattened portion (17) of the branch connection is then severed to define a stub projecting from the ferrule. A split collar is then clamped onto the pipe so that the stub and ferrule are enclosed within a cavity (3) defined by the collar and sealed by engagement between the collar and the pipe. The split collar forms a permanent fixture which reliably prevents any leakage from the branch connection stub, the ferrule, or cracks or holes in the pipe adjacent the branch connection which might appear at a later date.</p> |
