... , 400mm, 350mm, 300mm, 250mm, 200mm,150mm and so on according to outlet diameter. The pump is innovative in hydraulic design and ... of the impeller of the pump can be changed according to different working conditions; and the pump is suitable for conveying ... particles. The maximum mixture concentration of conveyed powdery is up to 60 percent. Therefore, the pump is ideal sand pumping and conveying ...