... pumps, G/GH gravel pumps, SP/SPR sump pumps, series ZGB slurry pumps, series ZJ slurry pumps, sand pumps, mud pumps, ash ... , centrifugal, one stage, single casing gravel (sand) pump2) High head, large capacity, high efficiency.3) Good NPSH performance.4) Widely application ... fields.5) Long bearing life: The bearing assembly is with large diameter shaft and short overhang. 6) Wear resistant wet parts ...