... , 370W, 2ph or 3ph automatic diaphragm dosing pumpsautomatic stroke controller transfer pump ... Degree: IP55Flow Control: Manual operation, Automatic(receive 4-20mA signal)Work ConditionEnvironment temperature ... chemical industry, electric power, metallurgy, mining, shipbuilding,light industry, agriculture, national defense department and etc.MeasurementsProject Case automatic diaphragm dosing ...