... discharge and water diversion project. Introduction QZ series submersible axial flow pump, QH series submersible mixed flow pumps is the company's introduction ... . QZ, QH series of pump flow with a single large, wide head range, and high efficiency. Submersible motor and pump integrated ... operation. C: low noise, long life. QZ, QH series of impeller and impeller base material cast iron, ductile iron ...