starline® - Rehabilitation of gas pipelines

Rehabilitation of gas pipelines

starline® technology is used for the rehabilitation of gas pipelines up to DN 600 (DN 1200 with special equipment) and operating pressures of up to 30 bars, to sustainably restore the necessary operating safety. The rehabilitated pipeline can then be considered as a new pipe and can be commercially fully activated, i.e. the value can be depreciated over its useful life.

For the following applications of gas pipe renovation we have developed special fabric hoses, adhesives and specially designed technical equipment:

  • starline®HPL-G: for the rehabilitation of high pressure pipelines
  • starline®2000: for the rehabilitation of utilities pipelines
  • starline®200: for the rehabilitation of mains connections

The key stages of pipe rehabilitation using this process are the inspection of the pipeline with a camera, thorough cleaning, lining with the starline® fabric hose, pressure testing of the reconditioned pipeline and if necessary using a robot to open outlets and connections from inside the pipeline.

Incidentally: future maintenance and repair work can be carried out using everyday tools and requires no special parts.

  • starline®HPL-G
  • starline®2000/ starline®2000 EXPRESS
  • starline®200
  • starline® STRUCTURE-G

starline®HPL-G for gas transport pipelines

With an extremely sturdy fabric hose, we use starline®HPL-G for the rehabilitation of high pressure gas pipelines made of steel, and with an operating pressure of up to 30 bar. Existing and future pitting corrosion of up to 50 mm, which pose enormous risks, can be removed efficiently, fast and sustainably using this technology.

The durability of welding seams is increased. With our starline®HPL technology, developed especially for rehabilitating transport pipelines, only a small excavation pit at a distance of max. 180 m is necessary for the thorough cleaning of the pipeline. Installation lengths of up to 600m are possible for the fabric hose.

As the diameter of the fabric hose is made to fit the inside diameter of the host pipe, crease-free lining can be achieved in spite of the great sturdiness and seamlessness of the fabric hose. The full surface adhesion of the hose prevents seepage and the pipeline can later be drilled using normal tools. Even the additional welding on of new pipe outlets is possible, as the welding temperature only has a local influence on the fabric hose.

Group of KARL WEISS

The company KARL WEISS Technologies operates in the field of trenchless construction for pipelines. We also execute infrastructure services in civil engineering underground, as well as the classic building of pipelines and sewers.

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