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Slip Lining

Our experience with Slip Lining: the network’s requirements, the solution chosen and the work carried out.

Orange excavator supporting a pipe section with lifting straps, with operatives in high-visibility clothing and site fencing.

SLIP LINING

A new pipe inside the Coghinas II water main

Lu Bagnu · Castelsardo, Sardinia

01 / 02

SAPI, lead company of the consortium awarded the contract.

At Lu Bagnu, rehabilitation of the Coghinas II water main for ENAS covered approximately 2,400 metres of pipe under the consortium’s contract. Slip lining enabled a new DN1200 GRP pipe to be inserted into the existing DN1400 concrete main.

An internal 3D survey, BIM coordination and a bypass of the water main supported the planning of the work. Activities included inserting the pipe sections, making joints, filling the annular gap and adapting the ancillary structures.

Contract length
Approx. 2,400 m
Existing pipe
DN1400
New GRP pipe
DN1200
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