Corrosion-resistant outer coating for optimum protection.
MLB drainpipes and fittings from Dueker – also known as BML bridge pipes – feature powerful corrosion protection on the outside due to their typical use in bridge and road construction. In these applications, the pipe surfaces are exposed to external influences such as road salt and acidic exhaust gases which corrode the surfaces. This is why the exterior surfaces of Dueker MLB pipes feature two-layer thermal spray galvanisation and a two-component epoxy coating. The nominal diameter range from DN 100 to DN 500 or 600 includes the largest pipe dimensions for cast iron drainpipes. The outside of the pipes can be painted to match the building structure or for corrosion protection, which we generally recommend.
Perfectly coated: inside and out.
The exterior surfaces of Dueker MLB pipes feature spray galvanisation that is at least 40 µm thick, as well as a top layer (two-component epoxy coating in silver-grey) of at least 80 µm. The outer pipe coating complies with the requirements of the additional technical terms of contract and guidelines for the corrosion protection of steel constructions (ZTV-KOR Stahlbau). Inside, MLB pipes have the same high-grade, fully cross-linked epoxy coating as SML pipes. The hot mould centrifugal casting process that is typically used by Dueker guarantees a smooth, bubble-free surface, which prevents deposits and enables optimum drainage.