Two Stage (Series and Parallel) Pumps Test System
The Two Stage (Series and Parallel) Pumps Test System by Atto Labware is a comprehensive training unit designed to study the performance characteristics of centrifugal pumps when operated as two-stage (series) and parallel configurations. This apparatus demonstrates how connecting pumps in series increases head, while parallel operation increases discharge, allowing students to understand the combined performance of multi-pump systems used in industrial and hydraulic applications.
Educational Objectives
Students and researchers will be able to:
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Demonstrate the performance of pumps connected in two-stage (series) and parallel configurations.
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Plot characteristic curves of head, discharge, and efficiency for each mode.
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Compare energy input, head rise, and flow rate between single, series, and parallel operation.
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Verify theoretical performance relationships for multiple pump systems.
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Understand applications in multi-pump water supply and process systems.
Performance Measurement
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Measurement of suction and delivery pressures for each pump.
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Determination of flow rate using rotameter or volumetric tank.
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Input power measurement using a digital wattmeter or energy meter.
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Calculation of head, discharge, power, and efficiency for different configurations.
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Comparison of experimental results for single, series, and parallel operations.
Panel and Instruments / Components
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Centrifugal Pumps (2 Nos.): Identical single-stage pumps mounted on a common base.
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Drive Motor: 1 HP, 230 V AC motor with flexible coupling to both pumps.
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Valves and Piping: Provided for easy configuration between single, series, and parallel modes.
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Flow Measurement: Rotameter or calibrated measuring tank.
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Pressure Gauges: Bourdon type or digital sensors on suction and delivery lines.
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Water Reservoir: Supply and return tanks with drain valve.
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Control Panel: Equipped with digital energy meter, switches, and safety devices.
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Frame Structure: Rigid, powder-coated steel with vibration damping supports.
Specifications (Includes Technical Data)
| Feature | Detail |
|---|---|
| Type | Two-Stage Pump Performance Apparatus |
| Pump Type | Centrifugal Pumps (Identical) |
| Number of Pumps | Two |
| Pump Rating | 0.5 HP or 1 HP each |
| Motor Speed | 2800 RPM (Typical) |
| Flow Range | 0 – 25 LPM |
| Head Range | Up to 25 m (Combined in Series) |
| Pressure Measurement | Bourdon Gauges / Digital Pressure Sensors |
| Flow Measurement | Rotameter / Volumetric Tank |
| Power Measurement | Digital Wattmeter / Energy Meter |
| Working Fluid | Water (Closed Loop System) |
| Power Supply | 230 V AC, Single Phase, 50 Hz |
| Frame Material | Stainless Steel and Powder-Coated Steel |
| Dimensions | 1600 mm L × 600 mm W × 1000 mm H |
| Weight (Approx.) | 70 kg |
Note: Optional data acquisition and analysis software available for real-time pump performance monitoring.
