Laying water mains has always been a time-consuming job. Each section must be laid, joints welded, the interior checked for heat damage, and any damage repaired. Then the whole thing has to be encased in concrete if the ground is uneven. Now EUREKA project DRIVE-LOCK is about to make the process quicker and cheaper.
The French and Swiss partners in the DRIVE-LOCK project have developed a new conical interlocking system that joins steel water pipes together quickly and combines the strength of a welded solution with the flexibility and speed of a conventional elastomer, or rubber, joint.
Christian Pallier, Project Manager of the French lead partner Hydrotechnique explains that DRIVE-LOCK saves 40–60 per cent of welding time. "The new joint has less coupling play, reducing the need for welding,” he says.
Nicola Vatthauer | alfa
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