25 years

STH Westco Multilayer System products are produced under rigorous quality control.

To date, the multilayer system has gained over 50 certificates such as NSF, DVGW, AENOR, WRAS etc. These international standards underline our technical and quality know-how and we provide a 25-year system warranty backed by an international insurance scheme.

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STH Westco Multilayer System offers a complete range of piping systems for the supply of cold and hot water.

The multilayer system range includes different types of pipes and fittings. They are all developed and manufactured under the same roof and therefore perfectly matched to each other.

The multilayer system range components offer complete reliability for the variety of applications they were designed for e.g. drinking water installations, radiator connections as well as radiant heating and cooling. The installation of the system is particularly simple and economical. From residential to commercial installations, STH Westco offers the perfect solution for every situation.


  • Entirely corrosion-resistant
  • A barrier to the permeation of oxygen and light
  • High flexibility in bending and inherent stability
  • Excellent hydrostatic stress performance
  • Light in weight
  • Smooth inner wall ensuring less pressure loss
  • A life expectancy of up to 50 years


  • Hot and cold-water distribution

  • Industrial pipeline system for foods, electrical and chemical transportation

  • Condensed, filtered and mineral water pipeline system.

  • High pressure air duct system

  • Agricultural pipe line system

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