Lining with R.tec technology

In this method, a specially formed hose is placed onto the inner wall of the pipe. This process is suitable for renovating water conduits, gas pipes and sewers. Diameter may range from 80 to 1200mm. The length that can be relined in one step is up to 500 m, depending on the diameter. 90 bends can be relined if bending radius is 3D more.
The concentrically woven tube used here is made up of polyester and nylon fibers and covered with special coating ( PE, PU, Hyrtel ) depending on the substance flowing by the pipe line. The tube is designed for an internal pressure of 10 bars but the design for larger values of pressure is also possible.

At the place of the installation, the tube is filled with epoxy adhesive, then, wound on a drum placed inside a device that will turn the tube inside out. Turning the tube inside out is done with compressed air. The speed of turning out is controlled by air pressure and by slowing down the drum.

After the liner has been turned inside out, its surface saturated with epoxy adhesive contacts the inner surface of the pipe. Hardening of e adhesive is accelerated with the introduction of steam. Laterals are cut free by a remote controlled robot.