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Case Studies :Desludging primary tanks at Leeds


Yorkshire Water at Leeds have adopted the EMS ram pump as the preferred choice for de-sludging their primary tanks



Following successful trials and evaluation, Yorkshire Water have replaced all the PST de-sludging pumps they had at their Knostrop WWTW in Leeds with EMS ram pumps. EMS evaluated their de-sludging problem and worked closely with Yorkshire Water’s engineers to select the VRM250 mechanically driven ram pump. The VRM250 pumps are self priming and create a suction lift of 9 metres, giving the ability to draw very thick sludge from the bottom of the PST’s. The VRM250’s are specified to deliver 24 cubic metres per hour at 5 bar pressure. A major benefit is the pumps ability to handle solids and rags and it’s resistance to blocking. Yorkshire Water now have sixteen EMS ram pumps at Leeds.


Other job references

Grit pump for Scottish Water

Roundhill S.T.W – Thickened Sludge Ram Pumps


VRH250 pumps installed at Hardham

VRH pump at Lingfield STW

VRH pumps installed at Lowestoft




VRH250 and auto-desludging at Aldershot

VRH pump at Lingfield STW

EMS valves fitted to other pumps




VRM250 at Itchen Bank STW

VRH250 at Aldershot

Hydraulic cylinders for Restormel WTW pumps


Spare Parts available for retrofitting to Willet Pump



Chevron Seal

Valve Box and Valve Ball, Valve Seat


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