ITT Flygt Pumps – Success in Shrewsbury
The latest ITT Flygt installation has been helping to stop the problems caused in Frankwell, Shrewsbury, when the river Severn breaks its banks each year - by installing eight submersible pumps in two stations which this year helped to stop the town becoming flooded.
Supplied under its framework agreement with Severn Trent Water, who were also partnering the Environment Agency, ITT Flygt supplied three CP3356 pumps at one station and three CP3356 pumps and two NP3171 pumps at the second, as part of the Frankwell Flood Alleviation Scheme, a £6m project, which was officially opened by HRH Princess Anne in April 2004.
The re-occurring problem of river water flooding into houses and businesses along the banks of the Severn at Frankwell has been a difficulty for the residents for past 100 years but thanks to ITT Flygt, along with the work of Severn Trent and the Environment Agency, the very high river levels of February 2004 had a happier ending. This year thanks to this installation, vehicle and pedestrian access was maintained to the town centre meaning that everyday life was able to continue.
The problem was solved with an intricate system. At Frankwell car park under normal operation, rainwater runs through the station under gravity into the river until the free discharge is covered by the rise in river water, a valve shuts at the station which diverts the rainwater to the pumps. When the water in the pump well reaches a predetermined level one or two pumps, operate and deliver the water under pressure into the river. The installation at Water Lane pumping station works on a similar principal.
The pumps were installed at two different locations, at Frankwell Car Park pumping station the flow rate was 530 litres per second while the rate stood at 550 litres per second at the Water Lane station.
Work to the flood wall began in February 2002 and the pumping stations work began in May 2002. All works were completed in December 2003.
Source: Xylem Inc.