Emerson introduces silencer to protect workers

Emerson has introduced the Fisher WhisperTube Modal Attenuator for noisy gas or vapour purposes, which provides noise reduction in compressible fluid service for improved worker security, with no impact on process move.
The modal attenuator is a full-bore system offering 15-decibel sound suppression to scale back noise inside pipes produced by sources upstream, similar to management valves or other gadgets. – Image: Emerson
The modal attenuator from Emerson is a full-bore system offering 15-decibel sound suppression to scale back noise inside pipes produced by sources upstream, similar to control valves or different gadgets. It is put in downstream of these gadgets in place of a pipe spool piece, it generates no further stress drop, and has no impression on process move.
Until now, all options have generated significant strain drop, lowered circulate, and/or introduced obstructions. This has led some users to install acoustic insulation to pipe sections to reduce back noise, however this can be costly and cumbersome to put in, and it does nothing to scale back internal piping noise. The modal attenuator addresses these and different issues with a drop-in solution, bettering employee security and regulatory compliance, whereas reducing the chance of harm to downstream gear because of excessive noise levels internal to piping.
Leading เครื่องมือที่ใช้วัดความดันเลือด for the modal attenuator include these where upstream course of flows are modified by control valves, pressure aid valves, pumps, compressors and different gadgets that generate noise. Many of those devices must be put in in lengths of piping with no flow restrictions downstream, and the modal attenuator works nicely in these purposes as a end result of it introduces no such restrictions.
In addition, the modal attenuator doesn’t introduce an obstruction into the piping, so it can be used in purposes where particulates are suspended in process flows, and/or where pigging is required for cleaning and upkeep.
WhisperTube units 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. Pressure ratings match the flange ranking sizes, and the maximum temperature is 700°F (371° C).
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