Emerson has launched the Fisher WhisperTube Modal Attenuator for noisy gasoline or vapour purposes, which provides noise discount in compressible fluid service for improved employee safety, with no impact on process flow.
The modal attenuator is a full-bore device offering 15-decibel sound suppression to scale back noise inside pipes produced by sources upstream, corresponding to management valves or different units. – Image: Emerson
The modal attenuator from Emerson is a full-bore device offering 15-decibel sound suppression to minimize back noise inside pipes produced by sources upstream, corresponding to control valves or different devices. It is installed downstream of these gadgets instead of a pipe spool piece, it generates no additional strain drop, and has no influence on course of flow.
Until now, all solutions have generated significant pressure drop, decreased move, and/or introduced obstructions. This has led some customers to install acoustic insulation to pipe sections to reduce noise, but this can be costly and cumbersome to put in, and it does nothing to reduce internal piping noise. The modal attenuator addresses these and different issues with a drop-in answer, improving employee security and regulatory compliance, whereas reducing the chance of damage to downstream gear as a end result of high noise levels inside to piping.
Leading applications for the modal attenuator embody these the place upstream process flows are modified by control valves, strain reduction valves, pumps, compressors and other gadgets that generate noise. เกจแรงดันสูง of these devices should be installed in lengths of piping with no circulate restrictions downstream, and the modal attenuator works well in these applications as a result of it introduces no such restrictions.
In addition, the modal attenuator does not introduce an obstruction into the piping, so it may be used in applications where particulates are suspended in process flows, and/or the place pigging is required for cleaning and upkeep.
WhisperTube gadgets are provided in sizes from 2–12 in, with American Society of Mechanical Engineer (ASME) flange scores of Class one hundred fifty, 300 and 600. เกจวัดแรงดันน้ำมันเครื่อง match the flange score sizes, and the maximum temperature is 700°F (371° C).
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