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 impression on course of circulate.
The modal attenuator is a full-bore system offering 15-decibel sound suppression to reduce noise inside pipes produced by sources upstream, corresponding to management valves or other units. – Image: Emerson
The modal attenuator from Emerson is a full-bore device providing 15-decibel sound suppression to scale back noise inside pipes produced by sources upstream, similar to management valves or other units. It is installed downstream of those devices rather than a pipe spool piece, it generates no further strain drop, and has no influence on course of circulate.
Until now, all options have generated vital strain drop, reduced flow, and/or introduced obstructions. This has led some users to put in acoustic insulation to pipe sections to reduce noise, however this can be costly and cumbersome to put in, and it does nothing to scale back inside piping noise. The modal attenuator addresses these and different issues with a drop-in resolution, enhancing employee security and regulatory compliance, whereas lowering the danger of injury to downstream gear because of excessive noise ranges inside to piping.
Leading เกจวัดแรงดันco2 for the modal attenuator embrace these the place upstream process flows are modified by management valves, strain aid valves, pumps, compressors and different gadgets that generate noise. Many of these units must be put in in lengths of piping with no circulate restrictions downstream, and the modal attenuator works well in these functions because it introduces no such restrictions.
In addition, the modal attenuator doesn’t introduce an obstruction into the piping, so it could be utilized in applications the place particulates are suspended in process flows, and/or the place pigging is required for cleaning and upkeep.
WhisperTube devices are offered in sizes from 2–12 in, with American Society of Mechanical Engineer (ASME) flange rankings of Class one hundred fifty, 300 and 600. Pressure scores match the flange score sizes, and the utmost temperature is 700°F (371° C).
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