... counter clockwise rotation speed:1450r/mi pulp open type impeller pulp pump:Capacity:20~3000m3h Head range: 10~70m ... 1450,980,750,2900r/minProduct descrption:1.Totally open impeller,high efficiency,light in weight ,small axial force,and ... media with a certain volume of gas.3.The impeller was precision cast.Tested with Class G6.3 ... centrifuge pump producing! pulp full open type impeller pump casing