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Xylem supplies cutting-edge pump technology as part of major lock expansion project to increase connectivity between Northern and Southern Europe

December 11, 2015

Fourth Lanaye lock officially opened by His Majesty King Philippe of Belgium

Lanaye, Belgium, December 10, 2015 – Xylem (NYSE: XYL), a leading global water technology company focused on addressing the world's most challenging water issues, has designed a state-of-the-art water pumping solution as part of a complex project to expand the Lanaye Locks in Belgium, a vital connector route between Northern and Southern Europe. Xylem's Flygt pumps and turbines will regulate water levels in the canal network and harness energy from excess water in the Albert Canal. The addition of a fourth Lanaye lock (225 meters (m) x 25m) will quadruple the lock system's convoy capacity from 2,000 to 9,000 tons. The new lock was officially opened by His Majesty King Philippe of Belgium recently.

Located on the Belgium Netherlands' border, the Lanaye Locks link the Albert and Juliana Canals; the latter, a side canal of the River Meuse. Three locks have operated alongside each other since 1964 but, as two of these are too narrow to accommodate even smaller convoy, the larger lock has, over time, become a serious bottle neck for canal traffic.

Xylem was commissioned by the project consortium, BESIX Sanotec-Balteau, to develop a compact solution to address challenges associated with seasonal water level changes in the lock. Xylem's solution, which includes five Flygt 500 kilowatt (kW) submersible hydroturbines with a flow of 18 cubic meters per second (m³/s), pumps water back into the Albert canal, maintaining adequate levels to accommodate canal traffic during dry weather spells.

For most of the year, high water levels in Northern Europe require that water in the canal network be directed towards the Netherlands, where it flows into the sea. A major objective of the lock project was to recover some of the lost energy associated with this process. Xylem delivered five Flygt turbines each with an output of 460 kilowatts (kW) to harness energy and ensure minimal losses. Energy generated by the turbines flows into the electrical network.


Daniel Van de Gucht, EMEA Key Account Manager, Public Utilities for Xylem, said, "Inflow conditions in the turbines must be carefully regulated in order to avoid disruption to canal traffic in the main channel. Turbulence in the system can also result in energy losses and reduce the lifetime of the turbines. Xylem developed a bespoke solution based on a reduced pipe network which ensures a perfectly balanced flow and minimal energy losses, with consequent lower energy consumption by pumps while generating power through the turbines. The reduced pipe network also means fewer components are subject to wear which increases the lifespan of the turbines.


Patrick Delperdange, Senior Operations Manager BESIX Civil Works, commented, "The construction of the fourth Lanaye lock is one of the largest civil engineering projects of the decade in Wallonia. The works required the on-site production of over 220,000 cubic meters (m³) of concrete, mainly made of the gravels extracted from the river Meuse during the earthworks of 1,300,000 m³ (cut and fill). The concrete was reinforced with 15,000 tons of steel and required 200,000 square meters (m²) of formwork. BESIX finished this ambitious project within the agreed timeframe, while also coordinating the electromechanical works, among them the realization of the hydroelectric power and pumping plant."


Adrien Theunissen, Senior Manager BESIX Sanotec added, "Thanks to the engineering capabilities of BESIX Sanotec, CMI Balteau and Xylem, we could propose an alternative to the original scheme which was very attractive for the client. This resulted in enhanced efficiency and a reduction in construction and maintenance costs. The synergy between the partners contributed to a fruitful cooperation at all stages of the project."




About Xylem


Xylem (XYL) is a leading global water technology provider, enabling customers to transport, treat, test and efficiently use water in public utility, residential and commercial building services, industrial and agricultural settings. The Company does business in more than 150 countries through a number of market-leading product brands, and its people bring broad applications expertise with a strong focus on finding local solutions to the world's most challenging water and wastewater problems. Xylem is headquartered in Rye Brook, New York, with 2014 revenues of $3.9 billion and approximately 12,500 employees worldwide. Xylem was named to the Dow Jones Sustainability Index for the last four years for advancing sustainable business practices and solutions worldwide and the Company has satisfied the requirements to be a constituent of the FTSE4Good Index Series each year since 2013.


The name Xylem is derived from classical Greek and is the tissue that transports water in plants, highlighting the engineering efficiency of our water-centric business by linking it with the best water transportation of all – that which occurs in nature. For more information, please visit






BESIX Group is the largest Belgian Group, operating in construction, concessions and property development sectors. It profiles itself as a multi-services Group. The Group was founded in 1909, since when it has grown steadily and impressively. NV BESIX SA, its biggest subsidiary, is active in practically every field of construction. In addition to the activities of BESIX and its other subsidiaries, Cobelba, Jacques Delens, Socogetra, Vanhout, Wust, Franki Foundation Group Belgium, BESIX Park, Lux TP, West Construct in Benelux-France, the Group is present in Eastern Europe, North and Central Africa and the Middle East, via Six Construct, in Central Asia and Australia. In 2014, the Group achieved revenues of EUR 2 billion. BESIX has about 18,000 employees active in 22 countries on 5 continents.


About BESIX Sanotec


Through its BESIX Sanotec division, BESIX Group is active in the water industry and a key player in potable and wastewater treatment for residential, commercial and industrial markets. BESIX Sanotec operates as a fully independent player, offering a broad range of integrated solutions from conception and execution to operation and maintenance of wastewater and sludge treatment plants, potable water, odor control units, pumping stations and hydroelectric plants. BESIX Sanotec is currently active in Belgium, the Netherlands, Sri Lanka, United Arabic Emirates and Qatar. In order to meet the growing needs of public authorities, BESIX Sanotec, BESIX Concession and other divisions within the Group have joined forces in order to offer integrated services inclusive for PPP, DBFM and BOOT.