Borehole Pumps Positive displacement, with flow proportional to speed Efficient over a broad range of heads and speeds; pressurehead independent of pump speed Double spider bearing in pump element prevents drive-shaftstresses; rubber stabilisers eliminate noise and vibration Constant, non-pulsating flow Abrasion resistant Highly-developed pressure head allows capability for directirrigation from borehole Discharge head suitable for drive by electric motor, solar power, petrol or diesel engine, tractor or rotary windmill Can be installed on an incline or riverbank