Model: NL-SBSM-22

The problem

Air-conditioner pumps must survive 1000 hours of continuous running without flow degradation and still hit their head-flow curve. Splitting performance and life testing across two rigs breaks the data chain, and queueing twenty samples through a single life rig ties the lab up for weeks.

Capability

The bench arranges 20 life-ageing stations back-to-back with 2 performance stations. Life stations run 1000h continuously at 1.15x rated voltage and rated head; afterwards electrical performance, pump structure and fastener condition are checked against a flow-degradation limit of 10%. Performance stations auto-sweep the set points Qn, 0.9Qn and 1.1Qn at 0.1MPa differential, plotting the head-flow curve and logging voltage, current and power. Electrical acquisition covers AC 0-400V, 0-5A and 0-2000W at 0.5 class per station; flow 0-20L/min by ultrasonic meter better than 1% accuracy; test head 0-30m on 0-5bar sensors. Run and dwell times to 999999s settable, 1-999999 cycles live display; every station carries a flow switch, and current limits plus flow signals give dual fault judgment. The 304-stainless tank (1.5mm) auto-tops up, G1 and G1/2 pump ports, and after a power cut data survives and testing resumes. Twenty life stations share one 10kW 50-400V variable supply; performance stations have independent 1kVA units.

Key specifications

• Application: combined performance and durability testing of air-conditioner water pumps
• Stations: 20 life + 2 performance, back-to-back
• Life condition: 1.15x rated voltage, rated head, 1000h continuous, degradation <=10%
• Performance sweep: Qn / 0.9Qn / 1.1Qn at 0.1MPa differential, H-Q curve output
• Electrical: AC 0-400V / 0-5A / 0-2000W, 0.5 class, per-station module
• Flow: 0-20L/min, ultrasonic meter, accuracy better than 1%
• Head: 0-30m, pressure sensors 0-5bar
• Timers: run/dwell 999999s settable; 1-999999 cycles
• Tank: 304 stainless 1.5mm, automatic top-up; ports G1 and G1/2
• Power: 10kW 50-400V variable supply (shared) + 2 x 1kVA independent
• Control: PLC + PC; single-station fault stops that station only

Applications

Type and 100% testing at pump plants; supplier reliability audit by AC OEMs; H-Q curve calibration in pump R&D; third-party laboratory life testing

About the manufacturer

Guangdong Endurance Electronic Equipment Co., Ltd provides non-standard customization, drawing confirmation, factory acceptance, on-site installation and commissioning, operation training and lifetime technical service; 12-month warranty and lifetime spare parts supply. Tel: 0760-88500902 / 13416787649. Web: en.zsnaili.com.