Submersible Axialflow (Mixedflow) Pumps The QZB (QHB) series of submersible axial-flow(mixed-flow) pumps are mainly used in large and medium-sized submersible pump stations and are electromechanical products featuring an integration of motors and axial-flow or mixed-low pumps and are pumps replacing the traditional long-axis axial-flow and mixed-flow pumps. The QZB (QHB) series of submersible axialflow (mixedflow) …