Articles & Case Studies

Earl Shilton saved from ragging by Börger’s noble Pumps

Posted: Thursday 23rd August 2012

Börger’s Rotary Lobe Pumps have solved an irksome ragging problem at Severn Trent Water’s Earl Shilton sewage treatment works near Hinckley in Leicestershire.

Replacing progressive cavity pumps that had to be regularly taken out of service for de-ragging and lengthy maintenance, two of Börger’s PL200 Rotary Lobe Pumps have been put in to operation so far, with a further two due to be installed shortly.

“Since Börger’s pumps were installed over a year ago they haven’t had to be de-ragged once,” said Severn Trent Water’s Maintenance Engineer Chris Jarvis.

“Maintaining the old progressive cavity pumps meant a long stripping down process and there was always the possibility of breaking the seal, whereas the Börger pumps are much easier to look after and far more economic”.

Powered by 4.0kw IEC 60034-30 IE2 high efficiency motors and designed with a Maintenance-In-Place (MIP) radial liner system, Börger’s Rotary Lobe Pumps can be serviced very easily in-situ, without the need for specialist tools.

Börger have also significantly reduced maintenance input at Severn Trent Water’s Minworth STW in an application requiring fat to be separated from sludge during thickening before it reaches the sludge digestion process. Here, Börger’s Rotary Lobe Pumps also replaced problematical progressive cavity pumps.





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