... transfer, with high flow,high suction. Screw Gear Pump, Screw Pump, Gear Pump YCB Series screw gear pumps use two srew gears to ... . with advantage of compact size,high flow rate,big delivery head, low noise and high suction vacuum. The pump is equipped ... " 3" Flow Rate 300L/Min 1000L/Min Delivery Head 30M 60M Suction Head 5M 7M Rated Speed 700-1250RPM Working Pressure 0 ...