Emerson has launched the Fisher WhisperTube Modal Attenuator for noisy gas or vapour functions, which provides noise reduction in compressible fluid service for improved worker security, with no impression on course of circulate.
digital pressure gauge ราคา is a full-bore gadget providing 15-decibel sound suppression to reduce back noise inside pipes produced by sources upstream, similar to control valves or other devices. – Image: Emerson
The modal attenuator from Emerson is a full-bore device offering 15-decibel sound suppression to reduce noise inside pipes produced by sources upstream, such as management valves or different devices. It is installed downstream of those devices in place of a pipe spool piece, it generates no further pressure drop, and has no impression on course of move.
Until now, all solutions have generated vital strain drop, lowered flow, and/or introduced obstructions. This has led some users to install acoustic insulation to pipe sections to minimize back noise, however this can be pricey and cumbersome to put in, and it does nothing to reduce inner piping noise. The modal attenuator addresses these and other issues with a drop-in resolution, bettering worker safety and regulatory compliance, whereas reducing the chance of harm to downstream tools because of excessive noise levels inner to piping.
Leading functions for the modal attenuator embrace those where upstream process flows are modified by management valves, stress aid valves, pumps, compressors and other devices that generate noise. เกจวัดแรงดันลมราคา of these devices must be installed in lengths of piping with no circulate restrictions downstream, and the modal attenuator works properly in these applications because it introduces no such restrictions.
In addition, the modal attenuator doesn’t introduce an obstruction into the piping, so it might be utilized in functions where particulates are suspended in process flows, and/or where pigging is required for cleaning and upkeep.
WhisperTube units are offered in sizes from 2–12 in, with American Society of Mechanical Engineer (ASME) flange ratings of Class one hundred fifty, 300 and 600. Pressure rankings match the flange rating sizes, and the maximum temperature is 700°F (371° C).
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