Emerson has introduced the Fisher WhisperTube Modal Attenuator for noisy gasoline or vapour applications, which offers noise reduction in compressible fluid service for improved worker safety, with no impact on course of circulate.
The modal attenuator is a full-bore device offering 15-decibel sound suppression to scale back noise inside pipes produced by sources upstream, similar to control valves or other units. – Image: Emerson
The modal attenuator from Emerson is a full-bore device providing 15-decibel sound suppression to reduce noise inside pipes produced by sources upstream, such as management valves or other units. It is put in downstream of these units instead of a pipe spool piece, it generates no extra strain drop, and has no influence on process move.
Until now, all solutions have generated important pressure drop, decreased move, and/or launched obstructions. This has led some users to put in acoustic insulation to pipe sections to minimize back noise, but this may be pricey and cumbersome to install, and it does nothing to reduce inside piping noise. The modal attenuator addresses these and other issues with a drop-in answer, bettering employee safety and regulatory compliance, while decreasing the danger of damage to downstream tools because of high noise ranges internal to piping.
Leading applications for the modal attenuator embody those where upstream course of flows are modified by control valves, stress relief valves, pumps, compressors and other 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 properly in these purposes as a end result of it introduces no such restrictions.
In addition, the modal attenuator doesn’t introduce an obstruction into the piping, so it may be used in applications where particulates are suspended in process flows, and/or where pigging is required for cleansing and upkeep.
เกวัดแรงดันน้ำ are supplied in sizes from 2–12 in, with American Society of Mechanical Engineer (ASME) flange ratings of Class one hundred fifty, 300 and 600. Pressure scores match the flange rating sizes, and the maximum temperature is 700°F (371° C).
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