This free standing apparatus is designed to be flexible so that the widest possible range of experiments can be accommodated. The instrumentation provided makes it suitable for research into flow withi turbo-machines.The single stage machine can be run either as a radial flow pump or turbine.

All components are supported from a rigid base frame. A large water tank is used as the intermediary receiver between the pump/turbine supply and return. This tank must be pressurized with compressed air to keep the system full of water and to aid air purging operations. It is also used to contail all the water during rotor/stator changes.

The pump/turbine unit has its axis verticaland is directly coupled to a dynamometer mounted motor/generator. A calibrated spring balance continuously measures the reaction torque and requires no adjustment during test.