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The widely known SPIROsol helically corrugated steel pipes have been in trouble-free use for over 100 years. The pipes are light weight and can be installed quickly and easily.


SPIROsol is used for tunnels. One can think of tunnels for cattle, cyclists or pedestrians. They are supplied in bigger diameters like Ø2800mm. Because of the light, flexible construction, no foundation is needed and simple ground consolidation is sufficient. It can be an alternative to concrete structures.


As an option our the tunnels can be coated in a light colour, as cattle do not enter dark tunnels. It is also possible to prepare the tunnels for lighting. Standard fittings such as bevelled ends, slopes and flanges are offered for the full range.

Do you want to know more about this product? Contact us to learn about the possibilities.