PE100 | materials feature
PE100 ensures long lifetimes – and is often the material of choice for demanding water delivery projects. Lou Reade reports
Pipe made from PE100 material is routinely used as a replacement for other materials – such as glass-rein- forced plastic (GRP) – because of its flexibility and relative ease of installation. GPS UK says it has produced a completely new size of PE100 pipe for the UK water industry’s largest directional drilling project – as part of a major AMP6 United Utilities upgrade scheme. The mains duplication scheme is a £7m ($8.7m)
project being undertaken by United Utilities in the North West of England. The new pipeline will transfer raw water to a treatment works, where the water is cleaned and distributed as fresh drinking water. Around 450 metres of horizontal directional drilling
was required to install the pipeline underneath a busy road. To ensure the pipeline could handle the future
growth of the area, an 800mm pipe was required – but, due to the directional drilling pressures, a minimum 80mm wall thickness was needed. This resulted in a required specification of PE100 800mm SDR 11 pipe – a size never previously made in the UK. GPS was able to manufacture, test and deliver 450m of PE100 800mm SDR11 pipe within the necessary 12-week time frame. Manufactured in 12m lengths for ease of storage and handling, on a site within a busy public area, the pipe was jointed using butt fusion above ground and then pushed into the drilled trench to ensure a robust pipeline.
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Tough operator: applications in PE100 pipe
Dan Smith, project manager at United Utilities said: “This was a very complex scheme, with such a large directional drilling element making it not only unique but a difficult task to find partners that could deliver the required solutions.”
Freshwater pipe Agru of Austria recently supplied the complete piping system for the Tuas desalination plant in Singapore. The plant has a capacity of 136,000m³ per day –
enough to meet 10% of the country’s demand. Its efficient operation helps it to produce desalinated seawater at a low price. In it, PVC pipe has been replaced by PE100. Agru persuaded the operator to use only PE100
piping systems for the permeate plant. PE100 systems are suitable for such plants because of their long service lives, low maintenance requirements and high purity levels. The fact that all the necessary compo-
April 2017 | PIPE & PROFILE EXTRUSION 23 Agru has
supplied PE100 pipe for a desalination plant in Singapore
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