materials feature | Polyolefin developments
System Group’s Sow Flow AMR pipe is intended for use in drainage
systems on steep hills
The materials are ideal for rocky soil conditions
where no imported pipe surround is available, and are equally resistant to Slow Crack Growth (SCG) caused by external surface damage and point loads. The materials can be used for pipes that are installed using a wide variety of trenchless technology – from the renovation of existing pipelines using insertion or pipe-bursting techniques, to installing new pipes using high speed ploughing or horizontal directional drilling. At the same event, System Group of Italy presented
details of an HDPE pipe system that is engineered to make water flow more slowly – such as when it is running down a steep hill. Its corrugated HDPE pipes have an artificially
of single-walled pipe. He cited the case of Omani pipe extruder Muna Noor, which has commissioned an extrusion line from Tecnomatic to make multi-layer PE pipe – the first in the Middle East, it says. The line has an output of up to 2000 kg/h, making pipes with a maximum diameter of 1200mm.
Muna Noor, part of Kuwait’s Boubyan Petrochemical, specialises in the production of PE pipe in sizes up to 800mm. It recently opened a new factory in Sohar to produce PP double wall corrugated sewer pipes up to 1200mm, plus fittings, manholes and PE multilayer safety pipes. The pipes are produced under a technology licence from Wavin Overseas. Multilayer pipe offers a practical solution to problems
in the installation and jointing of PE systems, providing high security at minimum additional cost. By combining the best materials for specific loading conditions, they provide protection and long-time durability. The new generation of pipe will be ideal for the poor, stony soils of the Oman and other Middle East countries – which can produce high stresses in the pipe wall. One answer is to use High Stress Crack Resistance (HSCR) PE 100 materials – such as BorSafe HE3490- LS-H HSCR PE100 from Borouge in this project.
introduced roughness on the inner surface, in order to hinder the flow of water. The system is called Slow Flow AMR. The pipe is the result of research at Bari Poly- technic. Marco Maroncelli, marketing manager, told del-
egates that the inner surface roughness leads to turbulence which limits the speed of water flow. The pipes can be combined with ‘vortex’ manholes to further reduce water velocity in sewage and drainage systems. l Proceedings for the conference are available for purchase here.
Click on the links for more information: ❙
www.teppfa.org ❙
www.pe100plus.com ❙
www.dow.com ❙
www.sabic.com ❙
www.tecnomaticsrl.net ❙
www.boubyan.com (Muna Noor) ❙
www.borouge.com ❙
www.tubi.net (System Group) ❙
www.plasticpipe.org ❙
www.ppfahome.org ❙
www.iccsafe.org ❙
www.homeinnovation.com
CONEXTRU GmbH Supports in:
Engineering for extrusion
Purchase your next pipe tool via internet at:
www.conextru.eu/shop.html
• Extruder engineering from 30D to 42D from 50 – 1800 kg/h • Supervision of engineering for pipe heads • New pipe product developments and optimization
Delivers :
• Mono & multilayer pipe heads • Multilayer cross heads for pipe coating applications • Extruder parts like screws and feedbushes
info@conextru.eu • Klosterstr. 19, 3011 Tullnerbach, Austria
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