A snack food producer on Teeside has an effluent plant, which originally had 5No. 37kW submersible pumps in an existing sump feeding a screen installed when the plant was built. The effluent plant was constantly having to remove the submersible pumps for repair/overhaul [on average every 6 months]. This involved overhead lifting equipment and the costly hire of a temporary diesel driven pump each time one was removed.
Hydromarque Ltd were asked to attend site to look at an alternative option of using the Gorman-Rupp Super T Series™ self-priming, suction lift, solids handling pump, as a permanent replacement for the submersible pumps. This would allow for ease of maintenance of the pumps as they can be worked on locally and at the surface. This also eliminated the need for pumps to be installed underground with lifting gear requirements and the possible need for confined space entry.
It was agreed to install 1No. 37kW 10” Gorman-Rupp Super T Series pump on a trial basis by connecting the suction pipe to the 1st submersible pump and the discharge of the Gorman-Rupp pump to the outlet connection of the 2nd submersible pump.
The trial was a success and a further Gorman-Rupp Super T10 was installed in the position of submersible pump 4, discharging through the outlet of submersible pump 5. This resulted in 5No. 37kW pumps being replaced with 2No. 37kW pumps with increased flow capacity, hence reducing energy running costs drastically.
To date, both pumps are still in and running trouble free.
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