Cookie Settings

We use cookies to give you the best website experience. This includes cookies that are necessary for the operation of the site and for the management of our commercial business goals, as well as those that are used only for anonymous statistical purposes, for comfort settings or for the display of personalized content. You can decide for yourself which categories you want to allow. Please note that based on your settings may not all functionalities of the site are available. More information can be found in our privacy policy

Show details
Necessary
These cookies are essential for the operation of the site.
Statistic
To further improve our offer and our website, we collect anonymous data for statistics and analysis. Using these cookies, we can, for example, determine the number of visitors and the effect of certain pages on our website and optimize our content. In addition, these cookies are used to show you personalized content that suits your interests.
Home » Pipe rehabilitation » Rehabilitation of gravity pipes

Rehabilitation of gravity pipes

RTi Rohrtechnik Group boasts a comprehensive portfolio of trenchless repair, renovation and renewal technologies for gravity pipes, which have been in use for many decades.

Renovation methods

Cured-in-place (CIPP) lining for gravity pipes

RTi Rohrtechnik international Group has been successfully applying the cured-in-place lining method for more than 20 years …

Learn more

Lining with close-fit pipes

The r.tec® Close Fit method was one of the first renovation techniques to be used by Rohrtechnik international Group…

Learn more

Lining with continuous pipes

This lining method uses flexible pipes that are joined to form a strand on site.

Learn more

Lining with discrete pipes

This method is based on factory-made pipe modules, which are inserted one by one into the pipeline to be rehabilitated.

Learn more

Lining with pipe segments

Lining with pipe segments is a technique used in the rehabilitation of walk-in pipes and culverts.

Learn more

Lining with spirally wound pipes

This method uses prefabricated profile strips made of PVC or HDPE, which are machine-wound into an endless pipe string.

Learn more

Repair methods

Robot system

Rehabilitation robots are used for repair works such as countersinking and smoothing cracks or leaky fittings, as well as for correcting faulty pipe connections.

Learn more

Sealing rings

Partial rehabilitation by means of inserted rings is a purely mechanical rehabilitation method.

Learn more

Short liner system

The short liner system can be used to rehabilitate punctually damaged pipe sections ranging from 0.5 to 4.0 metres in length.

Learn more

Flooding method

The flooding method is used to seal off damaged spots in sewers of up to DN 400 mm in diameter by using a two-component silica gel.

Learn more

Replacement and renewal methods

Pipe bursting

Pipe bursting technologies are used in the rehabilitation of pressure and gravity lines.

Learn more

Pull-in-place method

This method uses the same machines and procedures as the pipe bursting method and serves to replace pipelines made of ductile materials.

Learn more