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Safety Performance 63
Case study
Echoing our philosophy of “Growth = Innovation x Implementation”, our talented teams have
continued using their creativity to develop innovative tools and technologies which help with
inspection and maintenance work.
Corrosion is often attributed to sewage or flush-water seepage on the outside of these
structures. For safety reasons, corroded gas risers need to be replaced and customers must
be notified a week before the necessary work is carried out as their gas supply will be affected,
causing inconvenience. In addition, a three-metre section of the gas pipe usually needs to be
replaced, even though, generally, only a 30cm portion is corroded, leading to a 90% wastage of
gas pipe.
To resolve this issue, Towngas developed a new riser repair technology called the Smart Riser
Jacket, which was inspired by the process used for retrending vehicle tires. The Smart Riser
Jacket stops gas leaks instantly and prevents further corrosion from damaging the pipes. It
repairs the leaking or corroded gas riser without interrupting our customers’ gas supply, and
without wasting material. What’s more, the time it takes to repair a riser is reduced from half a
day to 30 minutes. The Smart Riser Jacket is a triumph of efficiency and innovation.
Smart Riser Jacket
Before
After