spmk700 has introduced the Fisher WhisperTube Modal Attenuator for noisy gas or vapour purposes, which presents noise discount in compressible fluid service for improved employee security, with no influence on course of circulate.
The modal attenuator is a full-bore system providing 15-decibel sound suppression to scale back noise inside pipes produced by sources upstream, such as management valves or other devices. – 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 other units. It is installed downstream of these gadgets in place of a pipe spool piece, it generates no additional strain drop, and has no impression on course of move.
Until now, all solutions have generated significant pressure drop, decreased flow, and/or introduced obstructions. This has led some customers to install acoustic insulation to pipe sections to reduce noise, however this can be costly and cumbersome to install, and it does nothing to reduce inner piping noise. The modal attenuator addresses these and different points with a drop-in answer, improving worker safety and regulatory compliance, while reducing the chance of injury to downstream equipment due to excessive noise ranges internal to piping.
Leading เกจวัดแรงลม for the modal attenuator embrace those where upstream process flows are modified by control valves, stress relief valves, pumps, compressors and different gadgets that generate noise. Many of these devices must be installed in lengths of piping with no flow restrictions downstream, and the modal attenuator works nicely in these purposes as a result of it introduces no such restrictions.
In addition, the modal attenuator does not introduce an obstruction into the piping, so it might be used in applications where particulates are suspended in course of flows, and/or where pigging is required for cleaning and upkeep.
WhisperTube devices are provided 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).
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