(1) suspension with solid content concentration greater than 70% can be transported, but solid particles should be less than 1.3mm;
(2) double drive with double work, large flow and high head;
(3) stable operation and strong reliability of continuous operation for a long time;
(4) low noise, small pressure fluctuation and large voltage regulating range;
(5) it is suitable for transporting ceramic slurry, coal-water slurry kaolin and non-metallic mineral suspension, as well as food suspension, chemical slurry, electronic and magnetic materials, etc. In recent years, sewage treatment industry and metallurgical powder dressing industry have been widely used.