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Düker Cast-iron sewerage

Düker Cast-iron sewerage


SML's cast iron sewage system is designed for indoor installation. SML pipes and fittings can easily be laid in concrete, as the coefficient of linear expansion of cast iron and concrete is very similar, and, in turn, concrete protects cast iron from corrosion.

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SML pipes can be installed on the outside of buildings (in the form of downspouts) or, for example, in underground parking lots. In the case of such an installation, if there is an obvious danger of exposure to external factors, we recommend the use of additional corrosion protection.


Outside, the SML DÜKER pipes have a red-brown primer layer in accordance with EN 877.

Inside the SML, the pipes are covered with a continuous epoxy layer, which significantly exceeds the requirements of EN 877.

Shaped parts of SML on the outside and inside are covered with an epoxy layer of the same thickness, which, like the outer side of the pipes, is of a reddish-brown color.

Pipes have a wide range of sizes and diameters.
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