KSB Launches Submersible Borehole Pumps

06 December 2018

KSB has announced that it is expanding its portfolio of submersible borehole pumps. The new pumps have a diameter of up to 50 inches and a drive rating of 5MW. The pumps will be capable of handling upwards of 5000m3 per hour at heads of up to 1500m.

KSB states that the advantage of submersible borehole pumps is the notably longer service lifespan and the wet motors’ ability to withstand flooding.

The firm also offers double-entry designs for particularly high load conditions alongside more conventional single-entry designs. The double-entry design was originally used for drainage application in mines. Back-to-back impeller arrangements integrated into the double-entry design reduces the axial thrust and associated bearing loads. The drives in the pumps are water-filled high voltage motors ranging from 1kV to 11 kV. Developed in-house at KSB, the new range of pumps are manufactured at KSB’s German production facility in Frankenthal.