Emerson has introduced the Fisher WhisperTube Modal Attenuator for noisy gasoline or vapour functions, which provides noise reduction in compressible fluid service for improved worker safety, with no impact on process move.
pressure gauge วัด แรง ดัน is a full-bore gadget providing 15-decibel sound suppression to reduce noise inside pipes produced by sources upstream, such as management valves or other gadgets. – Image: Emerson
The modal attenuator from Emerson is a full-bore system offering 15-decibel sound suppression to reduce back noise inside pipes produced by sources upstream, such as management valves or other units. It is put in downstream of those gadgets in place of a pipe spool piece, it generates no further pressure drop, and has no influence on course of circulate.
Until now, all options have generated vital stress drop, lowered move, and/or introduced obstructions. This has led some customers to install acoustic insulation to pipe sections to reduce noise, but this can be pricey and cumbersome to put in, and it does nothing to minimize back inner piping noise. The modal attenuator addresses these and different points with a drop-in solution, improving worker security and regulatory compliance, while decreasing the chance of harm to downstream gear as a end result of excessive noise ranges internal to piping.
Leading functions for the modal attenuator include those the place upstream process flows are changed by management valves, pressure reduction valves, pumps, compressors and different devices that generate noise. Many of these gadgets must be put in in lengths of piping with no circulate 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 doesn’t introduce an obstruction into the piping, so it could be used in applications where particulates are suspended in process flows, and/or the place pigging is required for cleansing and upkeep.
WhisperTube devices are supplied in sizes from 2–12 in, with American Society of Mechanical Engineer (ASME) flange scores of Class 150, 300 and 600. Pressure scores match the flange rating sizes, and the utmost temperature is 700°F (371° C).
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