| 摘要 |
A saddle piece (22), consisting of a saddle flange (23) and a pipe nozzle (24), is placed on the outer surface of a pipeline (1). On the connecting surface (30) of the saddle flange (23) facing the pipeline (1) there is arranged a winding (31) consisting of a resistance heating wire, in which heat is generated by supplying electrical energy, with which heat the saddle flange (23) is welded to the surface of the pipeline (1). Subsequently, the wall of the pipeline (1) is drilled through, through the pipe nozzle (24), thus producing the branch. As a result of the pipeline (1) not being drilled until the welding of the saddle piece has been completed, the application of the saddle piece can take place while maintaining the cleanliness necessary for the quality of the welding even in the case of pipelines which are already in use. <IMAGE> |
