As a single stage single suction volute pump, the sand pump model PS features wide flow passage for fair-sized gravels and the flow regulation within a relatively large range. . Hence, this pump can be widely used to convey the materials like ore pulp, silt and slag etc. in metallurgy of non-ferrous metal, mining and concentration, coal, electric power and river dam foundation preparation projects etc. . This machine also features low cost, high effectiveness, high efficiency and good economic returns.