Double heads with one motor, suitable for high flow and low pressure feeding micro ... : 1.5KW,380V / 400V/110V, 50/60HzDrive System: 2 phase motor, Anti-explosion motor, Frequency conversion motorProtection Degree: IP55Flow Control: Manual operationWork ConditionEnvitonment ... be controlled via adjusting the length of stroke or the motor frequency.5.The diaghragm is made from multilayer complex ...