Emerson introduces silencer to protect staff

Emerson has introduced the Fisher WhisperTube Modal Attenuator for noisy gasoline or vapour functions, which provides noise reduction in compressible fluid service for improved employee security, with no impact on course of move.
เครื่องมือที่ใช้วัดความดัน is a full-bore system providing 15-decibel sound suppression to scale back 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 gadget offering 15-decibel sound suppression to scale back noise inside pipes produced by sources upstream, corresponding to management valves or other gadgets. It is put in downstream of these units rather than a pipe spool piece, it generates no extra stress drop, and has no impression on course of circulate.
Until now, all options have generated vital strain drop, lowered flow, and/or introduced obstructions. This has led some users to put in acoustic insulation to pipe sections to reduce noise, however this might be costly and cumbersome to install, and it does nothing to scale back internal piping noise. The modal attenuator addresses these and other points with a drop-in resolution, bettering worker security and regulatory compliance, whereas reducing the risk of damage to downstream gear due to high noise ranges inside to piping.
Leading functions for the modal attenuator embrace those where upstream process flows are changed by control valves, strain relief valves, pumps, compressors and other units that generate noise. Many of those gadgets should be put in in lengths of piping with no circulate restrictions downstream, and the modal attenuator works properly in these functions 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 used in applications where particulates are suspended in course of flows, and/or where pigging is required for cleansing and maintenance.
WhisperTube gadgets are offered 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 score sizes, and the maximum temperature is 700°F (371° C).
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