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Portable hire pumps provide flood protection
WP_452_p17-19_Case_Portable.qxd
22/04/2004
16:24
Page 17
applications portable pumping plant
Portable hire pumps provide flood protection
Contents Portable hire pumps provide flood protection Self-contained
Four submersible hire pumps have enabled the Blakes Lock pumping station, owned and operated by Thames Water, in Reading, UK, to remain open whilst major maintenance and engineering (M&E) work was carried out on the facility during a time of particularly high flows. The portable pumps coped with flow rates of 500 l/s at 33 m of head, assisting the in-situ storm pumps on a temporary basis whilst the civil works were carried out.
The ITT Flygt units, hired by Thames Water's contractors Engenica, had to eliminate the risk of flooding because the Blakes Lock pumping station is situated right next to Reading's popular Oracle Shopping Centre, one of the town's foremost retail spaces. In order to provide a level of certainty in the temporary flood protection scheme, ITT Flygt custom-built the largest submersible electric pump ever supplied by the company on a hire basis.
portable pumps
prevention package helped to ensure that no such overflow of hazardous wastewater affected the town. All the M&E works have now been completed by Engenica and the Blakes Lock station is once more running as normal. The flexibility and short-term cost of getting in hire pumps allowed the maintenance work to go ahead without the project costing too much or causing excessive disruption. It is precisely this flexibility with portable pumping plants that appeals to end users.
The main component of the 26-week hire agreement was a CS 3312 180 kW pump with a 630 impeller, which has three vanes and an outlet diameter of 300 mm. This pump, the largest hire unit ever supplied by ITT Flygt, operates at 990 rpm and was able to cope with the high flow rate demands, which sometimes reached 500 l/s. The order also included two CS 3300 LT pumps and a CS 3201 MT pump, which offer slightly less performance at a reduced head capability. A control panel and steel wired armoured pipes were also included in the package from ITT Flygt. The control panel enabled various pumps to stop and start during the M&E civil works, dependant upon the level control within the pump, which reflected the amount of demand that was needed to avoid a flood scenario. All of ITT Flygt's C pumps come equipped with shrouded multi-channel impellers running in a volute. The shape and size of the channel minimizes the potential for clogging, making the design suitable for wastewater duties that contain large solid particles. This was appropriate because the Blakes Lock pump station is located upstream of a wastewater treatment works also owned and operated by Thames Water. The pump station is, therefore, part of the wastewater 'grid' for the town of Reading, in southern England, making it even more essential that no flooding should occur during the M&E civil works and the period of high flows in late 2003. Flygt's temporary flood
WORLD PUMPS May 2004
ITT Flygt supplied its largest ever portable submersible electric pump to Engenica, the designated contractor for Thames Water, for use on a temporary flood protection scheme at Blakes Lock pumping station in Reading, UK. The CS 3312 180 kW pump [pictured] helped the facility to deal with high flow rates of 500 l/s at 33 m of head, during a period of high flows whilst civil engineering works were carried out.
www.worldpumps.com 17
22/04/2004
16:24
Page 17
applications portable pumping plant
Portable hire pumps provide flood protection
Contents Portable hire pumps provide flood protection Self-contained
Four submersible hire pumps have enabled the Blakes Lock pumping station, owned and operated by Thames Water, in Reading, UK, to remain open whilst major maintenance and engineering (M&E) work was carried out on the facility during a time of particularly high flows. The portable pumps coped with flow rates of 500 l/s at 33 m of head, assisting the in-situ storm pumps on a temporary basis whilst the civil works were carried out.
The ITT Flygt units, hired by Thames Water's contractors Engenica, had to eliminate the risk of flooding because the Blakes Lock pumping station is situated right next to Reading's popular Oracle Shopping Centre, one of the town's foremost retail spaces. In order to provide a level of certainty in the temporary flood protection scheme, ITT Flygt custom-built the largest submersible electric pump ever supplied by the company on a hire basis.
portable pumps
prevention package helped to ensure that no such overflow of hazardous wastewater affected the town. All the M&E works have now been completed by Engenica and the Blakes Lock station is once more running as normal. The flexibility and short-term cost of getting in hire pumps allowed the maintenance work to go ahead without the project costing too much or causing excessive disruption. It is precisely this flexibility with portable pumping plants that appeals to end users.
The main component of the 26-week hire agreement was a CS 3312 180 kW pump with a 630 impeller, which has three vanes and an outlet diameter of 300 mm. This pump, the largest hire unit ever supplied by ITT Flygt, operates at 990 rpm and was able to cope with the high flow rate demands, which sometimes reached 500 l/s. The order also included two CS 3300 LT pumps and a CS 3201 MT pump, which offer slightly less performance at a reduced head capability. A control panel and steel wired armoured pipes were also included in the package from ITT Flygt. The control panel enabled various pumps to stop and start during the M&E civil works, dependant upon the level control within the pump, which reflected the amount of demand that was needed to avoid a flood scenario. All of ITT Flygt's C pumps come equipped with shrouded multi-channel impellers running in a volute. The shape and size of the channel minimizes the potential for clogging, making the design suitable for wastewater duties that contain large solid particles. This was appropriate because the Blakes Lock pump station is located upstream of a wastewater treatment works also owned and operated by Thames Water. The pump station is, therefore, part of the wastewater 'grid' for the town of Reading, in southern England, making it even more essential that no flooding should occur during the M&E civil works and the period of high flows in late 2003. Flygt's temporary flood
WORLD PUMPS May 2004
ITT Flygt supplied its largest ever portable submersible electric pump to Engenica, the designated contractor for Thames Water, for use on a temporary flood protection scheme at Blakes Lock pumping station in Reading, UK. The CS 3312 180 kW pump [pictured] helped the facility to deal with high flow rates of 500 l/s at 33 m of head, during a period of high flows whilst civil engineering works were carried out.
www.worldpumps.com 17