... pump calls colloid pump , trefoil pump , sole pump etc., which are widely used in food and beverages, chemicals, ph The rotator pump calls colloid pump , trefoil pump , sole pump ... rotor transfer pump1.compare with centrifugal pump (pump milk) : centrifugal pump because of its simple structure, low ... with the centrifugal pump.2, compare with screw pump (MC Pump) : Both are Volume Pump Therefore, their ...