Emerson introduces silencer to guard staff

Emerson has introduced the Fisher WhisperTube Modal Attenuator for noisy gas or vapour applications, which provides noise reduction in compressible fluid service for improved worker security, with no impression on process move.
The modal attenuator is a full-bore gadget providing 15-decibel sound suppression to reduce noise inside pipes produced by sources upstream, corresponding to management valves or other gadgets. – Image: Emerson
The modal attenuator from Emerson is a full-bore device offering 15-decibel sound suppression to scale back noise inside pipes produced by sources upstream, similar to control valves or other devices. It is put in downstream of these devices rather than a pipe spool piece, it generates no extra stress drop, and has no impression on process move.
Until now, all solutions have generated significant stress drop, lowered move, and/or introduced obstructions. This has led some customers to put in acoustic insulation to pipe sections to reduce back noise, however this can be pricey and cumbersome to put in, and it does nothing to reduce inside piping noise. เพรสเชอร์เกจ addresses these and different issues with a drop-in solution, improving employee security and regulatory compliance, while lowering the risk of injury to downstream gear as a end result of high noise ranges inside to piping.
Leading purposes for the modal attenuator include these the place upstream process flows are changed by control valves, strain relief valves, pumps, compressors and different units that generate noise. Many of those gadgets must be installed in lengths of piping with no flow restrictions downstream, and the modal attenuator works properly in these applications as a end result of it introduces no such restrictions.
In addition, the modal attenuator does not introduce an obstruction into the piping, so it can be used in applications where particulates are suspended in process flows, and/or where pigging is required for cleaning and upkeep.
WhisperTube gadgets are supplied in sizes from 2–12 in, with American Society of Mechanical Engineer (ASME) flange scores of Class a hundred and fifty, 300 and 600. Pressure ratings match the flange ranking sizes, and the utmost temperature is 700°F (371° C).

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