Circulation Pump Losing Flow in Six Months, Booster Pump Burning Out on Frequent Starts? NL-PMP-10 Pump Endurance Bench Runs Ten Stations (pump performance test)

Circulation pumps and booster pumps lose flow, fall short of head, cycle frequently or even burn out after six months of use — a common source of field failures and user complaints for appliance makers. Incoming inspection usually checks only start-up and external sealing, so the time-dependent decay of the flow-head curve and power draw is simply not visible; the deviation survives until the assembled machine runs, or until the end user. The cost in rework and reputation is significant.

What the NL-PMP-10 pump endurance bench measures

• Ten stations in parallel, with flow, head, power and temperature rise logged through continuous running
• Flow-head characteristic curves filed against running time, with decay trends generated automatically (sharing the water-circuit metering module used on our pump performance test benches)
• Frequent start / stop simulation, with starting current and stall-protection trip-point judgement
• Performance consistency comparison under dry-run, cavitation and fluctuating inlet pressure
• Noise and vibration trend monitoring, with automatic stop and running-hours recording on fault
• Barcode and batch binding, with raw data exported per unit for the record

Applicable standards

GB/T 3216 (rotodynamic pumps – hydraulic performance acceptance tests), GB 4706.1 (household appliances – general safety) and IEC 60335-2-41 (pumps – particular requirements); acceptance criteria can follow the customer's standard.

Stations and throughput

Ten stations running 24/7 bring a single pump's flow-head measurement down from half a day by hand to a few minutes, while endurance ageing is completed within weeks — so incoming lots can be sampled batch by batch.

Manufacturer

Guangdong Endurance Electronic Equipment Co., Ltd. — a non-standard testing equipment manufacturer of pump endurance and performance benches, pump test bench and pump performance test systems, level sensor life test machines, dishwasher test equipment and washing machine test equipment.

Keywords: pump test bench, pump performance test, level sensor life test, dishwasher test equipment, washing machine test equipment.