Renewal of the district heating transport pipeline in Mannheim-Neckarau
Customer
MVV Netze GmbH
Country
Germany
Application
Local & district heating
Construction period
2024 – ongoing
Product solutions
Approx. 1.4 km trench:
- 2 strings of plastic casing pipes (DN 600 and DN 700)
- Medium pipe longitudinally welded with increased wall thickness
- Alarm system: 2x HDW
MVV Netze, the grid company of the Mannheim-based energy company MVV, is continuing work on the renewal of the of the main district heating pipeline in the Mannheim-Neckarau district in four construction phases.
Shorter construction time due to parallel laying of pipes
Due to the local conditions, the pipes can be laid in Maguerrestraße can be laid in parallel, reducing the construction time from three years to a total of 1.5 years.
Strict requirements for suppliers
Only manufacturers of pre-insulated pipe systems and post-insulators who were able to present the following test certificates were authorised for the project:
- Straight pipes in accordance with EN 253 and additional dimensional accuracy in accordance with FW401 as well as requirements for the PUR-foam insulation in accordance with EN 489
- Pipe ends calibrated and documented accordingly
- Sockets according to EN 489 and additional dimensional accuracy according to FW401
- Proof of suitability in accordance with FW603 and FW605
- Buried fittings according to EN 488 and additionally the dimensional accuracy according to FW401
ISOPLUS was able to fulfil all specifications.
All references
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