Widely used in petroleum, chemical industry, metallurgy, mining, shipbuilding,light industry, agriculture, national defense depa Product DescriptionFlow: 0-1800 lphPressure: 0-400 BarPower 3.0kw/4.0kw,380V/400V/110V,50Hz /60HzDrive System: 3 phases motor, Anti-explosion motor,Frequency conversion motorFlow Control: Manual operationProtection degree: IP55 Work ConditionEnvitonment temperature: -30 ...