... 200-1000mm 2,Capacity; 600-25000m3/h 3,Head;20-85m 4,Max. Diameter of Flowed Partice;178-350mm ... dredging depth and suction concentration can be acquired. 4,Strong flow ability and wide application WN(Q) ... drop for its performance curve of flow quantity and head, to apply better to the changes of exlusion. ... abrasion and long life-time of wet ends The head can be changed by changing the speed and ...