Advanced CIPP Lining with LinerEnd Cap

This process uses a flexible tube (= liner) of corrosion-proof synthetic and/or glass fibers, which is wetted inside with reaction resins and introduced into the host pipe run through a manhole, access pit, or access eye with the help of an inversion unit.

During this process, the liner tube is inverted, so the resin wetted liner side (inside before inversion) is turned outside, away from the effluent, and forced against the pipe wall.

The pipe-in-pipe system so obtained becomes an integral part of the host pipe. It forms a seal against infiltration and exfiltration and fully restores and meets the future's structural and hydraulic requirements. There is only a minor reduction in nominal pipe diameter.

The resin wetted, inverted liner tube remains under pressure from the filled-in air of water until the resin is cured.

The resin-impregnated liner in the pipe section can be cured with hot water, steam, or at ambient temperatures, depending on the resin system's requirements. The duration of the curing phase is largely dependent on the resin type and curing method you select.

After the reaction resin's final cure, the liners form a tight positive and frictional fit with the host pipe wall.

The pipe-in-pipe system so obtained becomes an integral part of the host pipe. It forms a seal against infiltration and exfiltration and fully restores and meets the future's structural and hydraulic requirements. There is only a minor reduction in nominal pipe diameter.

Using the specific LinerEndCap method will make your job easier and quicker. In just one step and without the need of an additional calibration hose, the wetted liner can be inverted and installed.

With the LinerEndCap applicated previously to the liner end with a special adhesive, the liner will be closed for the period of installation. So the user can set up the liner with the required pressure until the resin has cured.

After the liner installation and complete heating and cooling phase, the LinerEndCap can be removed with the inversion rope from the cured liner and away from the line. Additional milling is not necessary.

Manhole-to-manhole application

• From the start point to the end point
• From the start point to the end point by running through an intermediate manhole
• From the start point into a sewer pipe run over a defined length without any further manhole or access pit needed
• In case of laterals: either from a lateral start point down to the lateral/main interface or from a main line start point down to the main/lateral interface

• Concrete
• Steel
• Reinforced concrete
• Clay
• Cement 
• GRP, PVC, PE, PP 
• Cast iron

• Leaks with or without groundwater infiltration or exfiltration at pipe joints, pipe walls, junctions, transitions etc.
• Displaced pipes, cracks and debris, ruptures
• Plugging of lateral connections no longer needed
• Mechanical wear
• Corrosion

• Extreme pipe or joint offsets
• Broken or collapsed pipes
• Large cross-sectional reductions in conjunction with bedding problems
• Longitudinal cracks at pipe connections

Only qualified professionals with training are permitted to use our systems. Qualified personnel will be issued with a training certificate by Trelleborg Pipe Seals.