PRESSURE PIPE | MATERIALS
Internal strength: recent advances in pressure pipe
Recent pressure pipe developments include a geothermal project, a system that transfers carbon dioxide, a data centre cooling system for and several replacements for iron pipework
Utilities such as gas and water – as well as fluids in industries such as offshore – must be transported quickly and safely, which often necessitates the use of pressure pipe. However, some emerging industries are also turning to pressure pipe for critical applications. Agru of Austria has supplied a PE 100-RC piping system to a new data centre in Poland. The centre, owned by Data4Poland, uses the piping as part of its cooling water system. “The ever-increasing dependence on digital services requires server rooms that can withstand the highest loads,” said Agru. “Reliable cooling of the data servers is particularly critical here.” The heart of the cooling system is a piping system that connects the heat exchangers to the server rooms. The pipelines were designed to operate with water at 18-23°C and a pressure of 2.5-3 bar.
Agru supplied the PE 100-RC pipes and fittings for the cooling system. The pipes have diameters of 75-280mm and were joined using butt welding and electrofusion fittings. PE 100-RC is characterised by special crack
resistance and long-term reliability. This is an advantage for exposed pipe systems, as the material increases operational safety, especially for welded joints, says Agru. Its high UV resistance also makes it suitable for outdoor installation, while the material can also cope with temperatures below freezing. It can also absorb water hammer and vibrations.
Because it also provides basic insulation for the piping system, less insulation material is needed.
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Because of the lower weight of the plastic pipe, the pipe clamps are also subject to less stress. During the construction process, an external auditing company supervised the work to ensure that the high technical standards of the products supplied were maintained during installation.
Pipe rehabilitation To ensure clean drinking water for the 14,000 inhabitants of Hundvåg district in Norway, the main water supply pipe from nearby Stavanger had to be rehabilitated. The municipality chose the diffusion-tight Egeplast SLA barrier pipe – which was originally to be laid through an existing cast iron pipe, but ended up in an open trench installation. The project was challenging due to difficult ground conditions, which were characterised by
Main image: Agru PE
100-RC pipes play a critical role in cooling servers at a new data centre in Poland
Autumn 2024 | PIPE & PROFILE EXTRUSION 13
IMAGE: AGRU
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