Articles & Case Studies


Posted: Wednesday 26th September 2018

Heathrow Airport has achieved cost savings of 80 per cent at one of its cargo centres, after installing Flygt smart pumps and controllers in a sewage wet well.

The installation, which reached five years of operation in January, has also led to energy savings of more than 20 per cent, and eliminated the need for emergency maintenance callouts for one of the UK’s busiest cargo and freight management centres.

The project, which was commissioned by Heathrow’s Water Services team and carried out by Xylem Water Solutions, involved the installation of two Flygt Adaptive ‘N’ submersible sewage pumps and two Flygt SmartRun intelligent pump controllers.

Heathrow’s Water Services System Specialist, Ian Jolly, has been working on the project since its inception. He says: “We appointed Xylem in 2013 because we were looking for ways to improve the efficiency of our pumping station operations. In particular, we wanted to develop an optimised, energy-saving, wastewater pumping strategy that would ensure that all wastewater activities ran smoothly at Heathrow.

“Having worked with Xylem before, we were expecting good results. In truth, the pump station’s performance has surpassed our expectations. We no longer have any unscheduled maintenance callouts and have reduced the number of cleaning visits required, from one every six months, to one every five years.”

The Water Services team is now working with Xylem to develop a long-term maintenance strategy for the pump station.

“We’re considering the implementation of an annual maintenance regime,” Ian says. “This would require a simple wash-down and inspection once a year and would cost less than a quarter of our previous maintenance regime, which often totalled more than £5,000 a year for the cleaning alone.”

Adaptive ‘N’ and SmartRun technologies are key elements of Flygt Experior®, one of the most reliable and energy-efficient wastewater pumping systems on the market.

Andrew Welsh, ICA General Manager at Xylem, explains: “Flygt Experior® represents a complete pumping system: powered by smart technologies and guided by smart controls.

“The Adaptive ‘N’ technology of the submersible pumps uses a patented impeller design to manage blockages, by moving up the pump shaft whenever debris is detected. SmartRun is designed to work in tandem with these pumps using pre-programmed parameters to free the pump from debris, set optimal speeds and communicate with external monitoring features.”

Flygt SmartRun uses a soft start/stop technology to reduce any wear to valves and other components. When reversing the pump is required, SmartRun does this at reduced speed to limit any effect from shock loading on the rotating components.

Andrew concludes: “Flygt SmartRun embraces the concept of a connected wastewater system, helping customers like Heathrow to achieve higher efficiency and lower costs over both the short and long-term.”

Read the magazine online

August 2021

About the magazine »
Magazine archive »


Information for advertisers »

Pulsar New Banner
British Water buttonwood marketing Pulsar Button June 13 Water Aid Cranfield University Huber Harvey Communications wateractive