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Consortium Kleine Emscher, Duisburg

The project:

Micro-tunnel pipe heading DN3200/80m

DN 2400/600m and DN1400/120m

Executing companies:

Echterhoff GmbH & Co. KG

F.C. Trapp Tief- u. Straßenbau GmbH

The problem:

Pumping off or drainage of the arising ground water containing sand during pipe heading by open dewatering.

Our solution:

The arising ground water is pumped off with a KRS-69 pump, including all the sand contained. A 24-h on snore mode operation must be ensured.

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.