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New lease of life for old water pipes

UK company refurbishes 100-year-old water pipe in trial for aqueduct

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Ageing water pipes renovated in UK trial (Getty Images)
Ageing water pipes renovated in UK trial (Getty Images)

A UK company has refurbished a section of 100-year-old cast iron pipeline, in a trial to discover the best method of extending the life of an 80km aqueduct supplying water to 900,000 people.

A thin polymer lining was installed into 1.35km of the 39 inch diameter pipe, utilising patented Swagelining technology, developed from a concept originally created by United Utilities and British Gas to rehabilitate and extend the life of ageing water pipes.

Stephen Barnes, MD of Swagelining Ltd, said: “The scope of the trial was to specify, design and insert a semi-structural liner in the large diameter pipeline, allowing us to prove the effectiveness of our technology and highlight the benefits it offers.”

Using a bespoke software prediction package to tailor lining systems to individual clients, an optimum liner size can be selected to achieve maximum pull length, without compromising on the line’s flow capacity. “One of the main advantages of our unique technology is that it provides the ability to achieve long pulls of polymer liner with minimum excavation,” says Barnes, “which can lead to considerable cost savings.”

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