automatic diaphragm dosing pumps automatic stroke controller flow:0-500L/H, Pressure:0-10bar power:250W, 370W, 2ph or 3ph automatic diaphragm dosing pumpsautomatic stroke controller transfer pump pump manufacturerProduct DescriptionFlow:0-5000 lphPressure: 0-10BarPower:370W/550W,220V/380V/400V/110, 50/60HzDrive System: 2 and 3 phase motor, Anti-explosion motor, Frequency conversion ...