What are the technical indicators of the comprehensive performance test bench for electronic expansion valves of refrigeration equipment?

　The test bench is a platform that integrates multiple test functions and is used to comprehensively evaluate the various performance indicators of electronic expansion valves. What are the technical indicators of the comprehensive performance test bench for electronic expansion valves of refrigeration equipment? Let's see how Guangzhou Zhipinhui Electronic Technology introduces it.
　

　　1. Power supply: AC220V, 50HZ. Power, about 1KW;

　　2. Gas source: clean high-purity nitrogen above 6Mpa;

　　3. Operating environment: ① Humidity range 38∽85%RH (non-condensing environment)

　　② Temperature range -10～40℃

　　③ No strong electric field or strong magnetic field interference

　　④ Stable gas source pressure

　　4. Test items: ① Internal leakage test

　　② Flow characteristics test

　　③ Forward maximum valve opening pressure difference test

　　④ Reverse maximum valve opening pressure difference test