Emerson has introduced the Fisher WhisperTube Modal Attenuator for noisy gasoline or vapour purposes, which provides noise reduction in compressible fluid service for improved employee security, with no impression on process circulate.
The modal attenuator is a full-bore gadget offering 15-decibel sound suppression to reduce noise inside pipes produced by sources upstream, such as control valves or different gadgets. – Image: Emerson
The modal attenuator from Emerson is a full-bore system providing 15-decibel sound suppression to reduce noise inside pipes produced by sources upstream, similar to control valves or different devices. ตัววัดแรงดันน้ำ is put in downstream of these devices rather than a pipe spool piece, it generates no further pressure drop, and has no influence on course of flow.
Until now, all options have generated important pressure drop, decreased move, and/or introduced obstructions. This has led some customers to install acoustic insulation to pipe sections to cut back noise, but this can be expensive and cumbersome to install, and it does nothing to reduce inner piping noise. The modal attenuator addresses these and other issues with a drop-in solution, improving employee security and regulatory compliance, while lowering the chance of harm to downstream equipment as a end result of excessive noise levels internal to piping.
Leading purposes for the modal attenuator embody these the place upstream process flows are modified by control valves, stress relief valves, pumps, compressors and other devices that generate noise. Many of these devices must be installed in lengths of piping with no move restrictions downstream, and the modal attenuator works properly in these purposes as a end result of it introduces no such restrictions.
In addition, the modal attenuator does not introduce an obstruction into the piping, so it can be used in applications where particulates are suspended in course of flows, and/or where pigging is required for cleansing and upkeep.
WhisperTube units are supplied in sizes from 2–12 in, with American Society of Mechanical Engineer (ASME) flange scores of Class one hundred fifty, 300 and 600. Pressure rankings match the flange ranking sizes, and the maximum temperature is 700°F (371° C).
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