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New gigantic pumps for waste water transport

Posted: Friday 27th April 2018

In response to the worldwide increase in extra large waste water projects, KSB SE & Co. KGaA, Frankenthal, Germany, has significantly extended its range of large dry-installed waste water pumps. The pump manufacturer has developed an extra 15 sizes to add to its Sewatec pump series. The maximum flow rate of the largest version will be up to 33, 000 m3/h with a drive rating exceeding one megawatt.

The Sewatec type series comprises horizontally or vertically installed, single-stage volute casing pumps in back pull-out design. Depending on the fluid handled they can be fitted with a variety of impeller types, such as multi-channel impellers and free-flow impellers or single-vane impellers.

The casings come with a replaceable casing wear ring. Depending on their size, they are designed with or without an inspection hole. The suction nozzles are always arranged axially. For the discharge nozzles, customers can choose between a radial and a tangential arrangement. Grease-packed rolling element bearings, sealed for life, absorb the bearing forces. A range of shaft seals is available for selection, including various bi-directional mechanical seals and a number of different gland packings. A worldwide trend towards larger and larger waste water projects, for example in Mexico City or London, sees gigantic tunnels of unprecedented dimensions being built. This has given rise to a demand in larger and larger waste water pumps.

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August 2021

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