First, the type of test 1. External characteristics test: type test, factory test Type test: running test, performance test, cavitation test, noise test 2. Internal characteristic test: speed field measurement, blade surface tension measurement, flow display and pressure pulsation measurement 3. Strength test: axial force radial force measurement, hydraulic torque measurement 4. Other project tests: seal test, material test and energy balance test Second, the test device Danfoss Fully Equipped Condensing Unit Danfoss Fully Equipped Condensing Unit,Auto Scroll Compressor,Cooler Compressor,Condensing Units TAIZHOU NANFENG COLD-CHAIN CO., LTD , https://www.windpolar.com