kreiselpumpenlaufradschaufel with gegendrehrichtungsschutz

摘要

In a centrifugal pump ( 10 ) for liquids comprising an impeller casing ( 50 ) inside which a centrifugal impeller ( 40 ) is rotatably mounted including a hub ( 42 ) from which a plurality of curved blades ( 44 ) delimited by two curved edges ( 44 a ,44 b) extend, from one of the curved edges ( 44 a) of the curved blades ( 44 ) a tab ( 48 ) extends on the side of the concavity of the blades ( 44 ) and is folded in the opposite direction to the blade ( 44 ) with respect to a radial plane.