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Hubertustunnel, Netherlands

The project:


Construction of a city tunnel in The Hague with a diameter of 9.6m and a length of 1,490m.


Executing companies:

Wayss & Freytag Ingenieurbau AG

BAM Civiel BV

Van Hattum en Blankevoort BV

Distrimex Pompen&Service BV (Tsurumi partner)


The problem:


Drainage via open dewatering during tunnelling operations.


The solution:


Implementation of multiple KTZ and KTV series submersible pumps which can be operated in 24-hour snore mode.

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.