Barrel-Type Pump with Venting Device and Associated Method
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United States of America Patent
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Jul 22, 2015
filing date -
Jul 29, 2014
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Abstract
A centrifugal pump with a barrel casing and a ventilation arrangement is provided. A plug-in unit is arranged in the barrel casing. The plug-in unit has a shaft, and at least one impeller is arranged on the shaft. The impeller is enclosed by a stage casing. The stage casing separates an inner pressure space from an outer pressure space. At least one venting device is arranged in the stage casing.
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