Emerson introduces silencer to guard workers

Emerson has introduced the Fisher WhisperTube Modal Attenuator for noisy gas or vapour functions, which presents noise discount in compressible fluid service for improved worker security, with no impact on course of circulate.
เกจไนโตรเจนsumo is a full-bore gadget offering 15-decibel sound suppression to minimize back noise inside pipes produced by sources upstream, corresponding to control valves or other gadgets. – Image: Emerson
The modal attenuator from Emerson is a full-bore system offering 15-decibel sound suppression to scale back noise inside pipes produced by sources upstream, similar to management valves or other devices. It is installed downstream of these gadgets rather than a pipe spool piece, it generates no additional strain drop, and has no impact on process flow.
Until now, all options have generated important pressure drop, reduced move, and/or introduced obstructions. This has led some users to install acoustic insulation to pipe sections to scale back noise, however this can be pricey and cumbersome to install, and it does nothing to minimize back inside piping noise. The modal attenuator addresses these and other issues with a drop-in answer, improving employee safety and regulatory compliance, whereas lowering the chance of harm to downstream equipment as a end result of high noise levels internal to piping.
Leading functions for the modal attenuator include those where upstream process flows are changed by management valves, pressure relief valves, pumps, compressors and different gadgets that generate noise. Many of these devices should be installed in lengths of piping with no flow restrictions downstream, and the modal attenuator works properly in these purposes as a result of it introduces no such restrictions.
In addition, the modal attenuator does not introduce an obstruction into the piping, so it can be utilized in applications the place particulates are suspended in process flows, and/or the place pigging is required for cleansing and maintenance.
WhisperTube gadgets are provided in sizes from 2–12 in, with American Society of Mechanical Engineer (ASME) flange ratings of Class a hundred and fifty, 300 and 600. Pressure scores match the flange ranking sizes, and the utmost temperature is 700°F (371° C).

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