The D stage pump is the multistage sectional type centrifugal pump, is similar for the transportation clear water and the physico-chemical properties to the water using of liquid. Should pump lifts 23~153.6m, current capacity 12.6~39.6m/h. The liquid maximum temperature does not have to surpass 80 ℃, widely applies to the discharge of mine water, the factory and the city using of for the water.