In this 9:51 video, Fisher WhisperTube Product Demo, Emerson’s Shelby Daniels explains in detail how this technology is a passive reactive silencer that reduces system noise across a wide range of conditions without impacting the flow capacity or process.
The Fisher WhisperTube Modal Attenuator addresses these issues for sound suppression in pipeline and control valve applications. It has a straight-through flow geometry with an inside diameter (ID) that matches the pipe ID and is installed in place of a spool piece. It creates no additional pressure drop.
In a Chemical Engineering article, Reducing the Noise from Control Valves, Emerson’s Mark Nord describes ways to reduce noise levels emitted from these control valves.
In a Hydrocarbon Engineering article, Sound Suppression, Emerson’s Bill Flowers shares ways to reduce high noise conditions caused by control valves and surrounding piping.
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