Sverre Tragethon, Martin Andersson
Papers # 2018 Las-Vegas
Global mega trends push for investments in sewage treatment capacity & efficiency. A trend is to go for central regional treatment sites, typically remotely located from dense populated cities. This calls for high capacity pressure sewage transmission pipelines. Reliable operation is of course of paramount importance for the circular urban society. Sweden’s currently biggest infrastructure project is a green field project for new regional sewage treatment centre and transmission pipeline. Initially project faced a challenge; how to combine big diameter pipeline with varying topographic and ground conditions, on tight budget? GRP was first considered, but was dropped in favour of PE100.
PE100 flexibility and weldability made the difference. Notable is that also selection of ancillary equipment typically produced from stainless steel etc, were here replaced with components machines out from PE100 sheets and finally welded. This concept was enabled by involving an extended team of expertise. Altogether this new smart concept made the final choice easy for the project team.
Two parallel 1000mm SDR17 PE100 pipelines, >500 welds, PE100 based flanges electrofusion couplers, degassers, etc. All PE100 and 100% welded
Key learning; Key learning; success calls for co-operation between different providers. PE100 proved being the choice for big diameter piping and tailored solutions.
