Giant pump secures emergency cooling water supply

Mid-March of this year, the KSB Group supplied one of the largest water pumps with an axially split casing ever built to one of voestalpine Stahl GmbH´s steel mills in Linz, Austria.

The vertically installed pump is connected to a horizontally installed 750 kW Diesel engine by means of a right-angle gear. The pump set weighing a total of 13 metric tons delivers cooling water at a rate of more than 3,300 litres per second. The discharge head is around 17 metres.

The pump conveys cooling water through a newly built, one metre thick pipeline to the company-owned power station in the event of a malfunction, and thus plays an important part in improving reliability of supply. It enables the condensers to continue condensing the exhaust steam from the turbines, and therefore ultimately prevents the power generation process from being interrupted.

A building comprising the inlet tank was especially erected next to the existing pumping station to accommodate pump and driver. In April 2007, the pump set successfully passed its test run.

wasserpumpe-kraftwerk-linz-bild One of the largest axially split water pumps ever built is installed at the power station of voestalpine Stahl GmbH in Linz, Austria. © KSB Aktiengesellschaft

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