How to use the comprehensive performance test bench for electronic expansion valves of refrigeration equipment

How to use the comprehensive performance test bench for electronic expansion valves of refrigeration equipment

　In the field of refrigeration technology, electronic expansion valves play an important role. In order to ensure the stability and reliability of their performance, a professional comprehensive performance test bench is required. How to use the comprehensive performance test bench for electronic expansion valves of refrigeration equipment? Let’s see how Guangzhou Zhipinhui Electronic Technology introduces it.

This equipment is designed according to JBT-10212 and JBT-10386. It is suitable for testing the flow characteristics, valve opening pulse, valve leakage, maximum action differential pressure test, reverse valve opening differential pressure, fatigue resistance test, etc. of electronic expansion valves. It uses imported electronic digital flowmeters, and the flow test error is ±1.5%. The number of pulses can be set arbitrarily according to the valve opening requirements, and the flow change value of each pulse number can be displayed. The system is automatically controlled, the output test pressure ratio is adjustable, the valve input pulse number can be set, the system pressure, flow parameters and pulse number can be detected in real time, and the flow and pressure mutation points can be identified. After setting the parameters on the computer, the test can be started with one click, and the flow characteristics and valve leakage parameter curves can be generated and the test results can be recorded;