If the pump position is higher than the water level, it will need a water pump to fill the sand pump with water from the river or the other water source. When the water in the pump case is high than the half of the pump impeller, the pump can start to work smoothly. Because if the water level is higher, the water can backflow to the pump. For these types, the position of the pump is better to be lower than the water level. discharge distance can get to 700 – 1000 meters.įirst, as the main suction pump, the large capacity dredge pump will be setup on the dredger hull or a working platform, connected with the suction hose directly to dredge. This dredge pump is usually used as the booster to do the long discharge. And in China, the GN series is the most popular. The total discharge distance will be about 300 – 500m according to the different working condition and sand source. In Africa, PNS series of this large capacity dredge pump is widely used on the sand dredger for sand suction and river dredging. There is the same flow capacity of these two series, the difference is the pump head. OCEAN brand sand dredge pump have two series, one is PNS series and another one is GN series. This sand pump is always used as main dredge pump on the dredger or as the booster pump for long distance discharge on the land. Large capacity dredge pump is a kind of heavy duty sand suction pump for river cleaning, sand dredging and mining.
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