Modular Pump Test Set

Description of Modular Pump Test Set:

Detailed work on both rotodynamic and positive displacement pumps can be performed on this multipurpose test bench, which is designed to be self-contained hydraulically, requiring only the provision of an external single phase electrical supply for full utilisation.

• A positive displacement Gear Pump is supplied as standard with the following pumps available as optional extras:
• A positive displacement Piston Pump - stroke 19.5 mm, bore 20 mm, flow 19 1pm at 1040 rpm, maximum pressure head 67 bar, limited by relief valve to 5 bar
• A rotodynamic Centrifugal Pump - duty point of 120 1pm and 0.5 bar at 3000 rpm (max. flow at zero head 140 lpm, max head at zero flow 1.1 bar at 3000 rpm). P6364 – A rotodynamic Axial Pump - maximum flow 50-60 1pm at 0.2 bar at 10000 rpm. (max head at zero flow 0.5-1 bar with severe cavitation), impeller diameter 38 mm.
• A positive displacement Vane Pump—40 lpm at 1500 rpm
• A rotodynamic Channel Impeller Pump—26 lpm at 3000 rpm

 The testing of such a wide range of pumps on a single test unit is made possible by the provision of quick release hose and drive couplings together with quick release pump fixing clamps, enabling changeover to be made easily and efficiently. Torque measurement for the dynamometer is by load cell, whilst speed measurement uses a magnetic type pick up. Pump suction and delivery heads are monitored by pressure transducers and the flowrate in the circuit can be accurately determined using the built in flow meter. All data is logged and displayed on the P.C. that is supplied with the unit. Data can be exported to a spreadsheet for processing.

Experimental Capability of Modular Pump Test Set:   

1. Head / flow rate plots at various constant speeds
2. Measurement of brake power input
3. Determination of volumetric and total efficiency
4. Variation of pump capacity with speed
5. Specific speed analysis
6. Cavitation

Features of Modular Pump Test Set:   

1. Modular design allows for the quick changeover of pumps  
2. Self-contained mobile unit
3. Wide range of pump types
4. Pulse wheel flow meter for flow measurement
5. Inverter controlled AC motors
6. Torque and speed measurement
7. Suction and delivery throttle valves
8. Positive displacement and roto-dynamic pumps available  
9. Easy and efficient changeover of pump drive and pump circuits  
10. P.C. based data acquisition and display
11. Trunnion mounted 2kW AC dynamometer