Emerson has launched the Fisher WhisperTube Modal Attenuator for noisy gasoline or vapour purposes, which offers noise reduction in compressible fluid service for improved employee security, with no impression on process circulate.
The modal attenuator is a full-bore device offering 15-decibel sound suppression to scale back noise inside pipes produced by sources upstream, similar to management valves or different devices. – Image: Emerson
The modal attenuator from Emerson is a full-bore system offering 15-decibel sound suppression to cut back noise inside pipes produced by sources upstream, similar to management valves or different units. It is put in downstream of those devices in place of a pipe spool piece, it generates no extra strain drop, and has no impression on process flow.
Until now, all options have generated important stress drop, decreased flow, and/or launched obstructions. This has led some customers to put in acoustic insulation to pipe sections to reduce noise, however this can be pricey and cumbersome to install, and it does nothing to reduce internal piping noise. The modal attenuator addresses these and other issues with a drop-in answer, bettering employee security and regulatory compliance, whereas reducing the danger of injury to downstream equipment because of high noise levels inner to piping.
Leading applications for the modal attenuator embody those the place upstream course of flows are changed by control valves, pressure reduction valves, pumps, compressors and different units that generate noise. Many of these gadgets must be put in in lengths of piping with no circulate restrictions downstream, and the modal attenuator works nicely in these purposes as a outcome of it introduces no such restrictions.
In addition, the modal attenuator doesn’t introduce an obstruction into the piping, so it could be used in functions where particulates are suspended in course of flows, and/or the place 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. เกจ์แรงดัน match the flange score sizes, and the utmost temperature is 700°F (371° C).
Share