Patent ID: 7828531

Claim:
A vertical centrifugal pump unit comprising an intermediate pipe which surrounds a shaft of the centrifugal pump unit and is arranged between a centrifugal pump housing and a bracket for supporting a pump motor, wherein the centrifugal pump unit is designed for wet installation in a closed container; the centrifugal pump unit is attached to a horizontally extending flat part arranged beneath a flange of the bracket; the intermediate pipe is constructed without a flange or other enlargement on its end faces; the end faces of the intermediate pipe are pressed against the bracket and the centrifugal pump housing by screw connections distributed uniformly around the intermediate pipe circumference; and the bracket and the horizontally extending flat part arranged beneath the flange of the bracket are connected together by said screw connections flange of the bracket are connected together by screw connections, and the intermediate pipe is formed by a piece of conventional commercial pipe stock cut to length to adapt it to prevailing conditions at an installation site.