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About Dampers : Radial Vane Damper

RADIAL VANE

Radial vane louver dampers have cantilevered or center-supported radial blades spaced around a circular frame are rotated by a linkage outside the ring frame.  The blades usually turn in the same direction, so this damper imparts whirl to the air.  Buffering and vibration, occurring in disturbed flow, can be dangerous.

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