The TIP method is an effective technique for sustainably rehabilitating severely damaged pipes, for example due to deformation, corrosion or leaks, where conventional CIPP lining methods are ineffective.

The principle is quite simple: using GRUNDOTIP, new short PP pipes are pushed into the old pipe to be renewed segment by segment from a launch manhole by means of hydraulic cylinders. A calibration head compensates for deformations and restores the circular cross-section – regardless of the condition and structural integrity of the old pipe. The new pipe fits tightly inside the old pipe; the resulting minimal annular gap does not need to be filled. The result is a structurally self-supporting, tested new pipeline with a long service life within the existing route.

With GRUNDOTIP, TRACTO provides an easy-to-use, complete system available in three versions for pipe-in -pipe renewal from ND 200 to ND 500 in various installation scenarios.