Emerson Introduces Silencer to Help Protect Workers from Gas Process Noise

Emerson has introduced the Fisher™ WhisperTube Modal Attenuator for noisy gas or vapor applications in a wide range of industries. The modal attenuator is a full-bore device offering 15 decibel sound suppression to reduce noise inside pipes produced by sources upstream, such as control valves or other devices. It is installed downstream of these types of devices in place of a pipe spool piece, generates no additional pressure drop, and has no impact on process flow.