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Waste water channel, Belgrade, Serbia

The Project:

Construction of a waste-water channel in Belgrade with 1500mm diameter

Executing companies:

Ferbild d.o.o., Belgrade

Vedir-Impex d.o.o.

The problem:

Laying of pipes with 1500mm diameter at a depth of 8m. Proximity to the Danube means that groundwater occurs at only 3m depth. Accordingly, the construction site was 5m below the groundwater level along its entire length. Since the ground contains a high proportion of grit, difficulties were encountered in lowering the groundwater.

The solution:

12 wells sunk to depths of up to 25m were drilled parallel to the new canal. At this depth the ground consists of shingle and groundwater could be pumped with ease. 15 Tsurumi pumps were used, of types KTZ611,KTZ35.5, KTZ22.2, KTVE35.5 and LH615.

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.