Review article

This paper examines a formula for determining the performance change coefficient KK of a pump when operating in parallel within a group of pumps. The application of this formula not only enables the analysis of each pump’s performance variations under different operating conditions but also allows for forecasting their joint operation based on the relationships between hydraulic resistances, the number of pumps, and pipelines. This provides an opportunity to optimize the system parameters to ensure operation within acceptable limits, thereby enhancing the efficiency of pumping equipment.