Emerson has launched the Fisher WhisperTube Modal Attenuator for noisy gas or vapour purposes, which presents noise discount in compressible fluid service for improved worker security, with no impression on course of circulate.
The modal attenuator is a full-bore gadget providing 15-decibel sound suppression to scale back noise inside pipes produced by sources upstream, corresponding to control valves or different units. – Image: Emerson
The modal attenuator from Emerson is a full-bore system offering 15-decibel sound suppression to reduce noise inside pipes produced by sources upstream, such as control valves or different units. It is put in downstream of these gadgets rather than a pipe spool piece, it generates no additional pressure drop, and has no impact on course of circulate.
Until now, all solutions have generated significant pressure drop, reduced move, and/or launched obstructions. เพรสเชอร์เกจลม has led some customers to put in acoustic insulation to pipe sections to scale back noise, but this can be expensive and cumbersome to put in, and it does nothing to reduce inner piping noise. ที่วัดแรงดันน้ำ addresses these and other issues with a drop-in resolution, enhancing employee safety and regulatory compliance, whereas lowering the danger of injury to downstream tools as a outcome of excessive noise ranges internal to piping.
Leading applications for the modal attenuator embrace those where upstream process flows are changed by management valves, stress reduction valves, pumps, compressors and different gadgets that generate noise. Many of those units have to be installed in lengths of piping with no circulate restrictions downstream, and the modal attenuator works properly in these functions 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 utilized in purposes the place particulates are suspended in process flows, and/or where pigging is required for cleaning and maintenance.
WhisperTube devices are provided in sizes from 2–12 in, with American Society of Mechanical Engineer (ASME) flange ratings of Class 150, 300 and 600. Pressure scores match the flange rating sizes, and the maximum temperature is 700°F (371° C).
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