Абдиразаков Акбар Иброхимович, Bobaraim Urishev2025-11-222025-11-222024-12-20https://dspace.kstu.uz/xmlui/handle/123456789/3207The article discusses the issues of occurrence of hydrodynamic loads in non-stationary processes of pumping stations, negatively affecting the operational condition of the pumping station equipment. The results of experimental studies conducted at the 6-pumping station of the Karshi main canal during the start-up of the pumping unit are presented. A method for reducing hydrodynamic loads acting on the elements of the flow path of the pumping unit during its start-up by inlet of air into the discharge part and under the impeller of the pump is proposed and investigated.enpump unit, hydrodynamic loads, pressure pipeline, guide vane, pump start-up, rotation frequency, pressure pulsation, vibration, pump pressure, air inlet.