... 0-400 lph, Pressure 0-1.0 Mpa air pump power pump sump pumpProduct DescriptionFlow:0-420 lphPressure: 0-10BarPower: ... of operation. Mechanical actuate diaphragm. Changeable eccentric drive2.Power off seal,no leakage,with security delivery device, ... the body.PurposeWidely used in petroleum, chemical industry, electric power, metallurgy, mining, shipbuilding,light industry, agriculture, national defense ...