... ,and lubricated oil transfer, with high flow,high suction. Screw Gear Pump, Screw Pump, Gear PumpYCB Series screw gear pumps use two srew ... such as gasoline,diesel,kerosene,and lubricated oil etc. with advantage of compact size,high flow rate,big delivery ... and high suction vacuum. The pump is equipped with relief valve.It is an ideal pump for tax fuel vehicles, ... Size 31*24*31 44*32*43 Screw Pump