Description
The rehabilitation of non-man-entry sewer lines with full-length CIPP liners has established itself as a sophisticated economical and technical alternative to traditional repair techniques involving digging up the ground.
This method is meanwhile a proven and reasonable-cost solution for the basic renovation of service lines in need of repair and thus to extend their service lives for another life cycle of at least 50 years.
A basic condition is that the materials used in CIPP operations are suitable for this type of application and that the installation process meets stringent quality criteria.
Application Areas
Pipe run direction
- 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
Circular, egg-shaped and special sewer sizes
- concrete
- steel
- reinforced concrete
- clay
- fibrocement
- GRP, PVC, PE, PP
- cast iron
- Precondition:
- The cross section of the host sewer meets the process requirements and the structural stability criteria.
Applicable Damages
- 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
Limitations
- extreme pipe or joint offsets
- broken or collapsed pipes
- large cross-sectional reductions in conjunction with bedding problems
- longitudinal cracks at pipe connections
Pipe Diameters
- DN 30 – DN 1200 | 1,2″ – 64″
