Two Stage (Series and Parallel) Pump — MOE Lab Tender Details

Two Stage (Series and Parallel) Pump

A self-contained free-standing apparatus for a comprehensive range of investigations into the operation and characteristics of a single centrifugal pump, and two centrifugal pumps in both series and parallel
The unit should be fully compatible with a Versatile Data Acquisition System

Experiments
Comprehensive demonstrations and investigations into a centrifugal pump including:
Centrifugal pump performance and characteristics, typically head versus flow and efficiency versus flow
Non-dimensional performance characteristics
Flow measurement using a Venturi tuve
Demonstration of cavitation
Operation of centrifugal pumps in series
Operation of centrifugal pumps in parallel

Specifications
Centrifugal Pumps
Approximately 2.2 L.s–1 maximum flow rate
120 kPa maximum head (120 kN.s-1)
Includes transparent window so that students can see the impeller and cavitation
Pump Impeller diameter 114 mm
Pump Motors – 2 off 3 phase Induction Motors
Electronic Motor Drives for speed control
Maximum speed 3000 rev.min–1
Power 0.75 kW at 3000 rev.min-1
Electronic Drive – single phase to three phase convertor
Controls the maximum speed of the pumps
Includes a “speed ramp” to prolong the life of the motor
Includes thermal sensors (thermistors) to stop the drives in the unlikely event of the motors overheating
Integral Reservoir
Includes strainer and filter
Inlet valve and delivery valve
Venturi meter for flow measurement
27.2 mm internal diameter at inlet and outlet
18.5 mm internal diameter at throat
2x Pressure tappings at inlet and throat
Coefficient of Discharge Cd = 0.97
Strain Gauge Load Cell to directly measure the driving torque
Tachometer Sensor measures pump speed
Displays on the Motor Drives show speed and torque and automatically calculates and displays true ‘shaft’ power

To include:
•    Stroboscope
•    Digital Pressure Display  fitted as standard
o    1x Differential Pressure Transducer, 2 bar
o    2x Single Input Pressure Transducers, 2 bar
o    1x Single Input Pressure Transducer, 6 bar
•    Easy-to-read Analogue Pressure Display
o    1x Differential Pressure Gauge (Bourdon type), 0 to 1 bar
o    1x Single Input Pressure Gauge (Bourdon type), -1 to 0 bar
o    1x Single Input Pressure Gauge (Bourdon type), -1 to 1.5 bar
o    1x Single Input Pressure Gauge (Bourdon type), 0 to 4 bar
Nett Dimensions and Weight: 1670 mm Length x 650 mm Depth x 1590 mm Height, 140 kg