Sulzer technology upgrades oldest filter station in Warsaw

Modernization of historical water treatment plant brings increased efficiency and savings

The Warsaw Water Filters in Poland, also known as Lindley’s Filters, were built in 1883 - 1886 by William Lindley, an English engineer who together with his sons designed water and sewerage systems for over 30 cities across Europe. Lindley’s Filters are listed as one of Poland’s national historic monuments. Today they are the oldest water filter station in Warsaw, delivering 50% of the clean water for Warsaw. The station has been modernized repeatedly.

Wastewater treatment plant in Warsaw
The challenge
To improve the water quality, the customer decided to modernize the rapid filter and control system. The biggest challenge was that because the pumping station is a historic building, the construction could not be changed.
We replaced the complicated sewage pump installation with modern Sulzer technology. These kind of demanding projects challenge us to develop our knowledge. Piotr Matysiak, project manager, Sulzer Wastewater Poland
The solution
To replace the existing flushing pumps, Sulzer delivered three submersible sewage pumps type ABS XFP 501U-SK3 PE1600/6 in vertical mounting with variable speed drives (VSD). The pumps were installed during the second half of 2014.
Customer benefits
The treatment plant was upgraded with very modern pumps with remarkably smaller power consumption than the previously installed pumps. Thanks to the Sulzer technology, the customer’s energy savings are close to 50% in comparison to the previous installation. The pump motors have a large power reserve and a very good efficiency.
Product data
XFP 501U-SK3 PE1600/6 (160kW) Flow m³/h Head m Shaft power kW Hydraulic efficiency % Total efficiency %
Two pumps working together 2'600 14.8 132.2 81.3 77.87
One working pumps 3'050 10.3 111.9 79.42 76.05


Matysiak Piotr

Sulzer Pumps Wastewater Poland Sp. z o.o.

Phone: +48 50 264 85 99