Düker GmbH

MLB (BML) bridge drainage pipe by Düker

MLB drainage pipes and fittings by Düker – also known as BML bridge drainpipe – bear a heavy corrosion protection outside due to the typical application for bridge and road construction, where a particular attack on the pipe surfaces through road salt and acid exhaust fumes is to be expected. The nominal dimensions range from DN 100 to DN 500 or 600, the largest pipe dimensions of cast iron drainage pipes. The pipes can be overpainted outside to adapt them to the construction body or for additional corrosion protection, which we recommend generally.
Furthermore, MLB is also suitable for the evacuation of sewage or rain water in underground installation.
Watch for the use of appropriate Inox couplings both for underground and bridge installation.

MLB pipes and their coatings

Outside, MLB pipes bear a spray zinc coating of at least 40 µm layer thickness as well as a cover coat (two-components epoxy coating in silver-grey) of at least 80 µm. This outside coating corresponds to the requirements of German ZTV-KOR steel construction, appendix A, table A.2, construction part no. 3.3.3.
Inside, MLB pipes bear the same high-quality epoxy coating as SML pipes.

Düker MLB coatings

Downloads regarding MLB

- MLB specifier's manual (pdf, 1,444 KB)

- MLB specifying texts
Word format (zip-file, 114 KB)

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