Coca-Cola has several production sites in Germany - including one in Dorsten, in the area of our sales representative Ingo Wien. Every year, four million hectolitres of soft drinks are produced and bottled here.
At the beginning of the year 2020, a 30 million new bottling plant was put into operation. This is where the PKS 3000 sewage pumping station from Jung Pumpen comes into play, because the bottles that are filled here have to be cleaned beforehand. In this case, there were special customer specifications to be observed, which ultimately led to a 3.80 m high shaft with an internal diameter of 3 m.
With a wastewater volume of 22 l/s, the water should not flow immediately into the gravity sewer, but should first collect and settle in the pumping station. The challenge was that when 15 m³ is collected, only 10 m³ should be pumped out. 5 m³ should remain in the shaft and mix with the newly arriving water.
No big deal, the supplied submersible probe for recording the water level was positioned accordingly. If this should fail, a ball immersion switch was also installed, which forcibly switches on the pumps at a predefined maximum water level and triggers an alarm. The whole thing is controlled by a HighLogo microprocessor control unit.
The actual work is done by two MultiFree 35/4 vortex impeller pumps with Ex protection. Heavy transport was necessary for the delivery. Although all the fixtures such as the traverse, piping, ladders, etc. are already pre-assembled in the shaft, the shaft is rather light. The real heavy part is the two-part cover plate class D 400 made of 30 cm thick reinforced concrete.
