... 5 BarPower: 550W, 380V / 400V/110V , 50/60HzDrive System: two and three phase motor,Anti-explosion motorFrequency conversion motorProtection Degree: IP55Flow ... simple maintance3.It can transport high-viscosity mediums, corrosive liquid and dangerous chemical goods.4.The flow can be controlled via ... power, metallurgy, mining, shipbuilding,light industry, agriculture, national defense department and etc.