Research on Non-overload Low Specific Speed Centrifugal Pump for Agricultural Use

Based the brake horsepower characteristics of low specific speed centrifugal pump and the required features of pumps used for agriculture, the concept of non - overload centrifugal pumps is conceived. The history and present status of non-overload centrifugal pumps both at home and abroad are introduced. The paper presented a summary of its theoretical derivations and experimental results. The operating characteristics and hydraulic design principles are discussed and the present problems and their possible solutions are analysised