Sand and gravel pump, also known as large particle pump, gravel pump, sand pumping equipment, is a modified version of sand pump according to the same kind of products from Australia. Sand and gravel pump is mainly used in dredging project with high over-flow requirements. Sand and gravel pump is suitable for extracting pebbles, stones, domestic garbage, coarse sand and other large particle media. The sand and gravel pump was originally used in industrial and mining enterprises, and later developed into river channel dredging, sand pumping and embankment projects.
Sand and gravel pump has wide flow passage because of unique three-blade impeller; the sand and gravel pump casing and impeller is thickened; over-flow parts are made of high chromium alloy. All of the features ensure that the sand and gravel pump can run stably in long life span and high efficiency.
The sand and gravel pump is not suitable for all working conditions. The sand and gravel pump has less blades and smaller outside diameter of impeller. Comparing with marine sand pump and high head slurry pump, the shaft power of gravel pump is lower. So under the same power ratio, the output of sand and gravel pump is lower than the other two pump types. So the customer needs to consider during the selection process.
In June 2018, a customer from Cote d’Ivoire contacted the foreign trade manager of Ocean Pump. He required the sand and gravel pump should has the following features.
1. The material should be wear resistant alloy. He has used sand pumping machine made in Guangdong, China for river sand pumping, the performance is good, but the wear is faster.