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Road tunnel B236n, Dortmund-Berghofen

The Project:


Construction of the road tunnel B236n in Dortmund-Berghofen

Executing company: Bilfinger Berger AG


The Problem:


Open dewatering during the underground tunnel heading and also cut-and-cover work with the aid of submersible pumps.


Our Solution:


Pumps of types KTZ32.2, KTZ45.5 and KTV22.2 were used. Continuous snore mode and the possibility of dry running are possible with Tsurumi pumps and secure driving at this construction site.



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.