starline® process
The starline® process is a rehabilitation method developed by us for the permanent trenchless rehabilitation of pressure pipes weakened by ageing using fabric or pressure hose relining. Our efficient 'green' technologies are available as an alternative to the open trench method for almost all tasks in the gas, water, wastewater and industrial sectors.
With the starline® method, an adhesive-filled and seamlessly round-woven, plastic-coated fabric hose or glass fiber-reinforced inliner is reversed into the weakened old pipe or pipe at risk of breaking by means of overpressure. As a result, the hydraulic pipe cross-section is retained and operational safety is permanently, quickly and efficiently restored while the overall structural integrity is maintained.
hydros® Process
The hydros® process was developed by KARL WEISS Technologies GmbH for the fast and cost-effective trenchless replacement of pressure pipelines (service and supply lines). Unlike other renewal methods, the hydros® process environmentally removes the brittle old pipe material completely from the pipeline zone and the surrounding soil.
The name hydros® stands for “hydraulic pipe pulling and splitting process.” For replacement, the new pipe string is attached to the end of the old pipeline using an adapter. With an extremely quiet (<55 dB(A)) and vibration-free hydraulic pulling device, the new pipeline—made from any desired material—is pulled into the ground while the old pipes are simultaneously pressed out.
