Water Lifting Devices - Food and Agriculture Organization of the United Nations

Coil Pump Design for a Community Fountain in Zambia


Seattle U Engineering Students Help Create Electricity for People in Developing Countries


A water pump that uses the energy of a large amount of water falling a small height to pump a smaller amount of water to much greater height.

Rotary Union



Hydraulic Rotary Union



The International Molinological Society

OMPI Rotating Joints

The Spiral Pump

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