KDY is a three-stage or more-stage centrifugal pump. The impeller is mounted back to back to balance the axial thrust, and the pumping chamber is designed with double volutes to balance the radial thrust. The first-stage double-suction impeller design is better suited to the needs of low cavitation occasions. The pump has a replaceable wear ring, the impeller has undergone static and dynamic balance tests, and the product design conforms to the latest API610 standards.