The experiments familiarise students with various pump types, such as centrifugal and positive displacement pumps.

The pump is investigated pumps water in a closed circuit. In the process, the performance data of the pump and pressure losses in the pipeline are recorded. The centrifugal pumps can also be operated in parallel or in series configuration. Each pump is driven by a All of the motors of the centrifugal pumps is variably adjustable by a frequency converter. All motors are mounted on swivel bearings, so the torque can be measured by way of a force sensor, enabling the mechanical drive power Output to be determined.

One free position is followed equipped with a reversible three-phase AC motor with variable speed. This position can be used for mounting of any pump.

The trainer includes two centrifugal pumps, one piston pump as a positive displacement pump and a self-priming side-channel pump. The side-channel pump works primary as a centrifugal pump and, depending on liquid level, can also act as a Positive displacement pump. This means, as a special feature, the side-channel pump also permits gases to be pumped.

Experiments demonstrate the basic operating lessons of various pump types.

Specification:

Comparison of various pump types: centrifugal pump, piston pump, side-channel pump

Operation of centrifugal pumps in parallel or series configuration

Three-phase AC motors for centrifugal pumps and additional motor with variable speed by frequency converter

Experiments relating to key issues in pump engineering

Free position for additional pump

Technical data:

Side-channel pump, self-priming, one-stage

Q: 83, 3L/min, H: 50m

Nominal speed: 1450min-1

Three-phase AC motor for side-channel pump

Power output: 1,1kW

Piston pump

Q: 17L/min, H: 60m

Nominal speed: 405min-1

Three-phase AC motor for piston pump

Power output: 0,55kW

Three-phase AC motor, additional motor, reversible

Power output: 0,75kW

Speed ??range: 750…3000min-1

Centrifugal pump 2x

Max. flow rate (Q): 300L/min

Max. head (H): 16,9m

Nominal speed: 2900min-1

Three-phase AC motor 2x, for centrifugal pump

Power output: 1,1kW

Measuring ranges

Flow rate: 0…500L/min

Pressure (inlet): -1…1,5bar

Pressure (outlet): 0…10bar

Torque: 0…15Nm

Speed: 0…3000min -1

Pump electrical power consumption: 0…2kW

400V, 50Hz, 3 phases

400V, 60Hz, 3 phases

230V, 60Hz, 3 phases