IMPROVED SELF-PRIMING CENTRIFUGAL PUMP

摘要

An improved self-priming, centrifugal pump (100) for mixed-media flow includes a volute housing (101) having a suction (520) and a discharge (530), a volute scroll (502) disposed within the volute housing (101), an impeller disposed within the volute scroll (502), a suction hopper (503) and a discharge hopper (504) within volute housing (101), a back cover (328) and a wear plate (323) attached to the volute housing (101). By optimizing the geometry of these internal components, noise is reduced, efficiency of the pump is improved, and the self-priming feature is maintained.