Emerson has introduced the Fisher WhisperTube Modal Attenuator for noisy gasoline or vapour applications, which presents noise reduction in compressible fluid service for improved worker security, with no impression on process circulate.
The modal attenuator is a full-bore device offering 15-decibel sound suppression to reduce noise inside pipes produced by sources upstream, similar to management valves or other devices. – Image: Emerson
The modal attenuator from Emerson is a full-bore gadget offering 15-decibel sound suppression to cut back noise inside pipes produced by sources upstream, similar to management valves or different devices. It is put in downstream of those gadgets rather than a pipe spool piece, it generates no extra pressure drop, and has no impression on process circulate.
Until now, all options have generated important strain drop, lowered move, and/or introduced obstructions. This has led some users to install acoustic insulation to pipe sections to reduce noise, but this can be costly and cumbersome to install, and it does nothing to cut back internal piping noise. pressure gauge ด้าน ดูด addresses these and different issues with a drop-in resolution, bettering employee safety and regulatory compliance, whereas reducing the danger of harm to downstream gear due to excessive noise levels inside to piping.
Leading functions for the modal attenuator embrace these where upstream course of flows are modified by control valves, stress reduction valves, pumps, compressors and other gadgets that generate noise. Many of those units should be installed in lengths of piping with no flow restrictions downstream, and the modal attenuator works well in these purposes as a 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 the place particulates are suspended in process flows, and/or where pigging is required for cleansing and maintenance.
WhisperTube devices are offered in sizes from 2–12 in, with American Society of Mechanical Engineer (ASME) flange ratings of Class a hundred and fifty, 300 and 600. Pressure ratings match the flange ranking sizes, and the utmost temperature is 700°F (371° C).