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The comprehensive pump performance test bench is a dedicated, integrated testing system designed for various types of pumps, including centrifugal pumps, self-priming pumps, cleaning pumps, miniature DC pumps, stainless steel booster pumps and industrial circulation pumps. The system integrates water circulation piping, high-precision flow and pressure sensors, dynamic torque and speed acquisition units, a servo-driven load application mechanism, and a PLC-based industrial control system. It supports both static and dynamic loading modes, and utilises dual force measurement solutions—mechanical and electronic loads—to provide comprehensive, one-stop testing of pumps’ hydraulic performance, motor electrical performance, operational reliability, and temperature rise endurance. It supports fully automated cyclic operating condition testing, automatic data acquisition, automatic generation of characteristic curves, and the export and archiving of test reports. It is widely used by pump manufacturers for factory-exit inspections, new product R&D calibration, third-party type certification, and batch quality consistency verification.
Core test items:
(1) Hydraulic performance testing
1. Basic hydraulic parameters: flow rate, head, inlet and outlet pressures, inlet and outlet pressure differential, net positive suction head (NPSH);
2. Full-range performance curves: Q-H flow-head curve, Q-P power curve, Q-η efficiency curve;
3. Variable operating condition testing: fixed-point testing at multiple flow rates, continuous variable-flow sweep testing, simulating actual variable-load conditions in piping systems;
4. Cavitation performance testing: Precise measurement of the critical net positive suction head (NPSH) to verify the pump’s ability to operate under cavitation conditions.
(II) Electrical and Mechanical Performance of the Motor
1. Electrical parameters: Input voltage, operating current, input power, power factor, winding temperature rise;
2. Shaft system mechanics: Output torque, rotational speed, shaft power, overall hydraulic efficiency, motor efficiency;
3. Start-up and Shutdown Characteristics: Collection of no-load start-up and full-load start-up surge parameters to capture transient fluctuation data during start-up.
(III) Durability and Reliability Testing
1. Continuous cyclic operation under rated conditions for extended periods, monitoring fluctuations in pressure, flow rate and temperature rise throughout the entire process;
2. Alternating high- and low-load endurance testing to simulate frequent load variations in pipeline networks;
3. Static Pressure Resistance Test: Static pressure endurance of the pump body and seal leakage detection (for static loading mode only).
(IV) Safety Performance Testing: Simulate abnormal operating conditions such as overpressure, overload and overtemperature to verify the system’s automatic shutdown and audible/visual alarm protection functions for overpressure, overload and overtemperature.
Core Advantages of the Equipment:
1. Seamless switching between dual-loading and dual-force measurement modes, adapting to all testing scenarios; supports both Static Load and Dynamic Load; Force measurement methods include Mechanical Load and Electronic Load. Static mode is used for pump body pressure resistance and seal static load testing; dynamic electronic load combined with dynamic loading provides millisecond-level response, accurately capturing flow and pressure pulsations, start-stop impacts, and transient data under varying operating conditions, meeting high-precision calibration requirements for R&D.
2. Energy-saving design with a closed-loop water circulation system to reduce operating costs. The entire piping system employs a closed-loop structure, allowing test water to be recycled without the need for continuous top-ups; the piping is equipped with filtration, pressure stabilisation and temperature control components, ensuring a steady water flow and minimising interference from air bubbles and impurities on the accuracy of flow and pressure measurements, thereby conserving water and reducing energy consumption during long-term testing.
3. High-precision sensor data acquisition, with data meeting certification standards. Equipped with an electromagnetic flowmeter, high-precision pressure transmitters, dynamic torque and speed sensors, and a multi-channel power analyser, each measurement unit offers high metrological accuracy and strong synchronisation of sampling. Test data can be directly used for third-party type-approval test reports and complies with national standard testing and evaluation requirements.
4. Fully automated closed-loop testing, suitable for mass production line cycles. A industrial PC works in conjunction with a PLC for joint control; once the pump is clamped in place, the entire test process is initiated at the touch of a button. The system automatically adjusts pipeline valves, collects all parameters, plots performance curves, determines compliance status, stores data and generates customisable reports, significantly reducing manual intervention and minimising human measurement errors, making it suitable for high-volume factory quality inspection.
5. Universal modular fixtures for convenient changeover and commissioning. The test rig is equipped with standardised, adjustable mounting bases and multi-size adaptors, enabling rapid adaptation to test specimens of varying sizes and inlet/outlet specifications, such as domestic micro-pumps, industrial high-flow pumps, DC washing pumps and stainless steel booster pumps. The quick-connect pipework fittings feature a fail-safe design, simplifying disassembly, assembly and alignment operations, thereby reducing the time required for specimen replacement.
6. Multi-layered safety protection for long-term, stable operation in production environments. The system incorporates an emergency stop button, an overpressure relief circuit, and multi-level protection against high and low temperatures, overheating and overload. Power and control circuits are separated via shielded cabling, and the cabinet is reliably earthed. In the event of operational abnormalities, the system automatically shuts down, triggers audible and visual alarms, and simultaneously records the fault location, making it suitable for 24/7 continuous operation in laboratories and quality control workshops.
Scope of Application:
Suitable for manufacturers of various types of water pumps—including domestic self-priming pumps, cleaning and washing pumps, DC micro-water pumps, stainless steel booster pumps, centrifugal pumps, industrial circulation pumps, in-line pumps and underfloor heating circulation pumps—as well as R&D laboratories, third-party hydraulic testing organisations and university fluid mechanics laboratories.
Primarily used for: hydraulic performance calibration of new products; type approval testing in accordance with national standards; 100 per cent inspection of finished products prior to dispatch; random performance sampling of batches; cavitation reliability verification; endurance and cycle life testing; and optimisation of motor-to-pump matching.
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