How To Choose A Centrifugal Pump

The method of selecting a centrifugal pump is as follows:
1. Collect raw data: Based on the selection requirements, collect the original basis for the medium, flow rate, required head parameters, and relevant parameters of the equipment before and after the pump in the production process.
2. Selection and calculation of pump parameters: Based on the original data and actual needs, leave a reasonable margin, determine the operating parameters reasonably, and use them as the calculation basis for selecting pumps.
3. Selection: Based on work requirements and operating parameters, use a reasonable selection method to select several forms that can meet the usage requirements, then conduct a comprehensive comparison, and finally determine one form.
4. Accounting: After selecting the type, perform relevant verification calculations to verify whether the selected pump meets the usage requirements. Whether the required operating points are located in the high-efficiency working area, and whether NPSH is greater than NPSH.
Precautions for selecting a centrifugal pump
When choosing a centrifugal pump, there may be several models of pumps that meet the requirement of operating within the optimal range. At this time, the working points of each pump can be determined separately, and the efficiency at the working points can be compared to select the best one. In addition, it is also necessary to consider the technical level and quality issues of centrifugal pump manufacturers, and combine them with their actual needs. Pay attention to these points and you will definitely find a satisfactory centrifugal pump.
Determine the type based on the properties and operating conditions of the transported liquid; Determine the pump model based on the flow rate (usually determined by production tasks) and the required pressure head in the pipeline (selected from samples or product catalogs); If the viscosity and density of the transported liquid differ significantly from water, the characteristic parameters of the pump should be calculated: flow rate, pressure head, and shaft power.