| 摘要 |
A variable capacity centrifugal pump assembly including a bearing housing, an impeller shaft rotatably mounted within the bearing housing and projecting therefrom, a volute circumscribing a cavity therein, a plurality of differently sized impellers for mounting on the impeller shaft within the cavity, a wear plate secured to the bearing housing and a volute and defining a downstream end portion of the cavity, a plurality of differently configured annular front covers for mounting to an upstream end of the volute for varying the size and configuration of the cavity to accommodate one of a selected plurality of differently sized impellers. The suction intake is mounted to the upstream end of the selected cover for communicating the pipe assembly with inlet hoses of varying size whereby the capacity of the pump assembly can be varied by the selective matching of the front covers with the impellers. |
