The unit is composed by two centrifugal pumps mounted on a stainless steel basement and connected to a continuous circulation tank. The pumps can be configured for single, in series and in parallel operation by adjusting the valves mounted on the pipes. The front part of the pump is in clear plastic to see inside. The suction and discharge pipes are transparent too and each one has a flow control valve. It has two interchangeable impellers, a forward curved impeller and a backward curved one, in order to compare their performances. The digital instruments allow to measure suction and discharge pressure to the pump, as well as flow rate and water temperature. The pump speed is accurately controlled by an industrial inverter within the interface console (necessary accessory) and also indicates torque and power consumption. The interface console also has a data acquisition software (PC not included) to study the values of the parameters measured by the electronic instruments.
TRAINING PROGRAM
This unit enables to deepen the following issues:
• Operation of a centrifugal pump
• Operation of two centrifugal pumps in series and in parallel
• Characteristic curve of a pump
• Measurement of pump performance according to the motor speed (head, power, efficiency)
• Effect of the impellers design
• Pump efficiency
TECHNICAL SPECIFICATIONS
• AISI 304 stainless steel basement
• 10 l clear Plexiglas tank
• 2 Centrifugal pumps, Qmax = 4.8 m3/h, H = 12 mH2O, 2900 rpm
• 3 pressure transmitters
• Pt100 thermo-resistance
• Flowmeter
