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HOBAS GRP - Pipe Systems for Water and Wastewater Applications

HOBAS is a leading manufacturer of GRP Pipe Systems and is committed to continual improvement of environmental performance. Attaining an ecological balance of our inputs and outputs is part of our Corporate Social Responsibility and represents a global expression of our continuous efforts.

HOBAS makes sure that not a drop of valuable potable water is lost and not a square meter of soil is contaminated with sewage. Environmental protection is embedded in the everyday lives of all HOBAS Employees as well as during all of the following phases:
  • Pipe design and selection of raw materials
  • Production process
  • Pipe transport and installation
  • Operation phase
  • Recycling

ISO 14001 system provides an effective framework to continuously improve environmental performance

ISO 14001 is the leading international standard for setting up and developing an environmental management system. HOBAS is an environmentally responsible company and the ISO 14001 system provides an effective framework to continuously improve environmental performance. A TÜV SÜD certification proves that the company is taking active steps to fulfil such responsibility.

Did you know...?

376,734 tons of CO2 have been saved by jacking the first 5.7 km-long section of the project Czajka. These values have been derived from an environmental survey conducted by HOBAS and the GSTT (German Society for Trenchless Technology).


The survey which was presented in May 2011 compared the amount of CO2 emissions generated during jacking versus what would have been emitted via pipe installation in open trench. The result was clear: Warsaw proved to have taken the right choice for there were considerably less CO2 emissions.

Of particular interest is the approach to investigate CO2 emissions of a specific project, from production, to transportation and to installation of the pipe system. Equally interesting is the study of traffic disruptions using on-site traffic counts during installation works.

Special attention was paid to the installation-phase and to the traffic emissions, as these provide the most significant CO2 reduction potential.

HOBAS Hydropower Pipe Systems

In the early 1960s, Gommerkraftwerke in the Binn Valley in the Swiss canton of Valais was searching for a suitable material for the pressure pipeline to its hydropower plant. Around the same time, Swiss mechanical engineers were thinking about other applications for their textile dyeing rollers.


It was to be a stroke of luck, as when Gommerkraftwerke heard about the pipes' excellent properties and low weight, the choice of material was clear - and they used the centrifugally cast GRP pipes for the three-kilometer-long, very steep sloping DN 1000 pipeline.

Because the material is so light, they only needed relatively simple equipment to install the pipeline quickly. In the steep, rugged terrain of Switzerland's Binn Valley, the HOBAS Pressure Pipeline has proved so reliable that it has been in service for over 50 years now.

HOBAS Hydropower Pipelines have a small roughness coefficient and mirror-like inside surfaces - they achieve minimal pressure loss and therefore maximal mass flow.


Compared to other pipe materials the higher flow rate at same diameters results in more output. Since the pipes are often laid in mountainous and rough terrain, the durable yet light HOBAS Pipes tip the scales in the decision-making process: their easy handling reduce installation time for more cost savings.


HOBAS Engineering GmbH
Pischeldorfer Strasse 128
9020 Klagenfurt
Tel.: +43 463 482424
Fax: +43 463 482121
Email: info@hobas.com
URL: www.hobas.com