Emerson has introduced the Fisher WhisperTube Modal Attenuator for noisy gasoline or vapour purposes, which offers noise reduction in compressible fluid service for improved worker security, with no influence on process flow.
เกจวัดอาร์กอน is a full-bore device providing 15-decibel sound suppression to cut back noise inside pipes produced by sources upstream, such as control valves or other units. – Image: Emerson
The modal attenuator from Emerson is a full-bore device offering 15-decibel sound suppression to reduce back noise inside pipes produced by sources upstream, corresponding to management valves or other gadgets. It is put in downstream of those units instead of a pipe spool piece, it generates no extra strain drop, and has no influence on course of move.
Until now, all options have generated vital pressure drop, reduced move, and/or launched obstructions. This has led some users to put in acoustic insulation to pipe sections to reduce back noise, however this can be pricey and cumbersome to install, and it does nothing to reduce back internal piping noise. The modal attenuator addresses these and other issues with a drop-in answer, enhancing worker safety and regulatory compliance, while decreasing the chance of injury to downstream tools because of excessive noise ranges inside to piping.
Leading functions for the modal attenuator embrace these the place upstream course of flows are changed by management valves, pressure aid valves, pumps, compressors and different units that generate noise. Many of these gadgets should be installed in lengths of piping with no move restrictions downstream, and the modal attenuator works well 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 can be used in purposes where particulates are suspended in process flows, and/or where pigging is required for cleaning and maintenance.
WhisperTube devices are offered in sizes from 2–12 in, with American Society of Mechanical Engineer (ASME) flange rankings of Class a hundred and fifty, 300 and 600. Pressure ratings match the flange rating sizes, and the utmost temperature is 700°F (371° C).