Ksb Se & Co. Kgaa

Stephan Bross

Alexander Boehm

Holger Rauner

Adrian Stein

Stephan Braun

Tim Richter

Alexander BÖHM

A sealing arrangement for a centrifugal pump is provided. The sealing arrangement permits a sealing gap between a rotating element such as a pump impeller and a non-rotating element such as a pump casing to be minimized, while protecting against element wear from gap reduction and element contact, particularly during transient operation such as pump start up. At least one of the rotating element and the non-rotating element is provided with a plurality of movably mounted bodies configured to rotate and maintain separate the rotating and non-rotating elements when the sealing gap is reduced. The elements and the bodies may be formed in an additive manufacturing process.

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Frankenthal, Germany

Stephan Bross