... used in the dredge of silt, ore pulp, coal liquid, river, port and so on. Working conditions 1.Power supply : 50 ... .Absorb the sand in the river, lake and sea.2.Absorb the silt and sand in the river, lake, sea, reservoir , pound , electric power ... not hesitate to contact us if have any question. Centrifugal river sand suction pump for sale