In the operation process of centrifugal pumps, especially in multi-stage pumps, axial force is one of the main factors which affect the pump safety andreliability. This paper presents the axial force study in a deep-well centrifugal pump (DCP) with theoretical calculation, numerical simulation and experimentalmeasure. Three different calculation formulas were respectively introduced and used in the model pump. The calculated results were compared and analyzed withthe numerical simulation values and experimental results, and the detailed numerical simulation methods and experimental configuration were explained. Finally,the more accurate formula for calculating the axial force in oblique flow centrifugal impeller was selected out. At the rated flow point, the deviation of the axialforce obtained by numerical simulation and the experimental value is approximately 3.8%, and the calculated result of selected formula only less than theexperimental results of 2.6%. The results provide a theoretical basis for the axial force calculation in the centrifugal impeller design process.
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