WATER AND WASTEWATER MANAGEMENT
The Turo sump pumps handle abrasive and corrosive industrial wastewater up to 80 °C
Egger dry mounted pit pumps in redundant design allow single or parallel operation (overload pump during heavy rainfall)
Slop tank with vertical Egger pit pump, in operation at PCK Schwedt for more than 25 years
completely retracted into the housing with a free ball passage the size of the discharge diameter. Blockages can be virtually ruled out and coarse solids such as stones, branches, screws or other solid materials can pass through the pump without any failure. The pump is also self-suff icient and does not require any external supply such as sealing liquid. The shaft seal is a single acting mechanical seal located directly behind the impeller. The intermediate journal bearings above it are lubricated with a clean liquid and do not come into contact with the pumped liquid. The pumps are also frost-proof, and the journal bearings are protected against corrosion by a water-glycol mixture. In addition to these technical
advantages, the very positive operating experience with pit pumps already in use contributed to the order for a total of 48 pumps of this type with Egger in 1998. Two pumps were installed per sewage pumping station. The base load pump is operated via variable speed drive controlled by the liquid level. The second pump with a fi xed speed serves as a reserve and as an overload pump, which is switched on in parallel during heavy rainfall. After more than 25 years of
operation, it can be said that the Egger sump pumps of the SG design have proven their worth. Subsequently, Egger submersible pumps were also installed at other locations, including pits and tanks classifi ed as Zone 0. Other very
The presence of hydrocarbons requires a complete pump set including dry mounted standard motor in fl ame proofed design
demanding applications followed, so that more than 100 Egger products are currently in use at the refi nery. This success story was crowned ten
years ago with the establishment of the service support centre on the PCK refi nery site. The service centre now consists of four people. As the availability of Egger products is very high and the failure rate very low, the Egger service centre also repairs third-party products and supports the company’s main service base in Mannheim with repairs from northern Germany.
For more information visit:
www.eggerpumps.com
www.engineerlive.com 37
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