A centrifugal pump comprising
A centrifugal pump housing defining a centrifugal pumping chamber having an inlet and an outlet; A centrifugal pump comprising:a centrifugal impeller within said pumping chamber;Water Pump Control Valves a vacuum pump chamber defined by a front wall facing said impeller and a rear wall in spaced relation and opposite said front wall, said chamber having a gas inlet and a gas outlet; a rotor within said vacuum pump chamber and spaced by a distance from said front and rear walls ; an intermediate wall separating said vacuum pump chamber from said centrifugal pump chamber ; a rotary shaft extending through said vacuum pump chamber and said intermediate wall into said centrifugal pumping chamber ; said centrifugal pump impeller and said vacuum pump rotor being mounted on said shaft; and means operatively connected to one of said walls for moving at least one of said front and FORGED STEEL VALVES rear wall for axially adjusting said distance between said vacuum pump rotor and at least one of said front and rear wall.
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2011-11-25
