... dredger, sewage pumps, desulphurization pump ,and other centrifugal horizontal and vertical pumps, and pump parts.Technology Parameters of 4/3C-AHR ... , one stage, single casing gravel (sand) pump2) High head, large capacity, high efficiency.3) Good NPSH performance.4) Widely application ... .5) Long bearing life: The bearing assembly is with large diameter shaft and short overhang. 6) Wear resistant wet ...