Steel is an essential part of any technical progress today. And what’s more, steel production is among the industrial branches with the highest energy and water demand – and therefore also has the highest savings potential in this area. Reliable water supply and disposal in the production process is of vital importance. The contamination of sewage with aggressive and abrasive fluids puts extraordinarily high demands on the used pump systems. And every breakdown and every stop for maintenance interrupts the entire production process.

Salzgitter Flachstahl AG, the largest steel subsidiary of the Salzgitter Group, produces about 4.6 million tons of crude steel every year. Due to the high demand on the world market, the hot wide-strip rolling mill has been considerably expanded. In the scale-forming water circuit, highly wear-resistant submersible pumps are used, which achieve an unrivalled lifetime of over one year, thanks to the innovative Ceram coating and a special chilled cast iron alloy. And in the process, they not only keep production flowing, but also shine with the best life-cycle cost numbers.

ThyssenKrupp Steel Europe is one of the world's leading manufacturers of high-quality flat steel. The range of products and services includes intelligent material solutions, product-specific processing and finished components. The company sets the standards in the steel industry with progressive production technologies. The integrated steelworks in Duisburg with its smelting, processing and finishing sections is one of the best performing steel making plants in the world. One milestone in the future concept was set with the commissioning of the new number 8 blast furnace with high environmental standards. A highly modern process for recovering sludge and dust containing iron has opened the door to zerowaste production.

Sewage containing significant solid concentrations.

The sewage arising during the production process is highly contaminated with solids. Wilo-EMU FA units are used as standard all over the company premises for transporting sewage. For years now, this series has proven its reliability and robustness under harsh operating conditions in all sorts of locations in the steelworks. The flexible application possibilities of the Wilo-EMU FA mean that a contingent of them is kept in stock as a standard measure.