2. wide passage, non-clogging and good performance of  NPSH .

3. expeller seal combined with packing seal and mechanical seal have be adopted to guarantee the slurry from leakage.

4. the reliability design ensures long MTBF(mean time between events)

5. the metric bearing with oil lubrication, reasonable lubricating and cooling systems ensure the bearing to be operated under the lower temperature.

6.the materials of wet parts had the good performance of anti-wearing and anti-corrosion, the pump can be used for seawater ash-removing to prevent it from the corrosion of sweater, salt and mist ,and electrochemical corrosion.

7.the pump can be operated in series with multi-stage within permissible pressure . the permissible maximum working pressure is 3.6 Mpa .

The series of pump has the advantage of reasonable construction , high efficiency, reliable operation and easy maintenance. It can be widely used for handling the mixture contained of abrasive and corrosive solids in electric power, metallurgy ,mine, coal, constructional material and chemical industry departments especial for removing ash and sludge in electric power station.