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The Project:

Water drainage in a 12,000m3 pit

Fischer Weilheim Construction Company

Dealer Schmittinger Köngen

Companies involved with legal status and location


Ground and rainwater drainage for a 12,000m3-large pit over 17 months. All incoming groundwater and rainwater must be disposed of.

KTZ-series pumps with control units are installed in collector shafts with electrode control – four KTZ 33.7. The shafts have a diameter of only 400 mm, so slim, space-saving pumps are required.

The solution:

The individual shafts are equipped with 16 pumps of the LB series with electrode control type LB 480 with electrode

In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear can take place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the working conditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.
In this regard, please pay attention to our general terms and conditions that we also send to you by mail on request.