Patent ID: 8128340
Filing Date: 2012-03-06
Classification: F04D,Y10S

Abstract:
1. A stacked pump arrangement for mixed-media flow comprising: a first centrifugal pump adapted to pump a far mixed-media flow, which is self-priming, comprising a first impeller shaft and a volute having an inlet and an outlet; and a second straight centrifugal pump adapted to pump the mixed-media flow mounted to an upper portion of the first centrifugal pump, the second straight centrifugal pump comprising a volute with an inlet and an outlet, and a second impeller shaft; and a transition chamber connected, at one end, to the first centrifugal pump volute outlet and connected, at another end, to the second straight centrifugal pump volute inlet, the transition chamber serving as a structural support for mounting the second straight centrifugal pump above and in vertical relation to the first centrifugal pump such that a portion of the weight of the second straight centrifugal pump is transferred to the first centrifugal pump, wherein a vertical center axis of the transition chamber is perpendicular to the first and second impeller shafts, and wherein the first and second impeller shafts are substantially parallel to each other along their respective longitudinal axes.