I would like to ask about the feasibility of operating a centrifugal pump and a screw pump in series

Centrifugal pumps and screw pumps can be used in series, but the following points need to be taken into account: 1. Flow rate matching: It is necessary to ensure that the flow rates of the two pumps are compatible with each other. Centrifugal pumps deliver low flow rates at high head pressures, while screw pumps deliver high flow rates at high pressure levels; therefore, the selection and design must be based on specific conditions. 2. System resistance: Using components in series increases the system resistance; therefore, it is necessary to consider the selection and arrangement of fluid elements such as valves, pipes, and pipe fittings during design, and to take a comprehensive approach to the system as a whole. 3. Operational stability: The stability of operation in series requires considering the operating conditions of the two pumps, especially the characteristic curves and operating points of the centrifugal pumps. In practical applications, appropriate measures need to be taken to ensure the stability of the system. In summary, it is feasible to use centrifugal pumps and screw pumps in series, but selection, design, and operation must be carried out based on specific conditions to ensure the safe, stable, and economical operation of the system. .