Emerson has introduced the Fisher WhisperTube Modal Attenuator for noisy gas or vapour applications, which offers noise discount in compressible fluid service for improved employee security, with no impact on course of flow.
The modal attenuator is a full-bore gadget offering 15-decibel sound suppression to scale back noise inside pipes produced by sources upstream, corresponding to control valves or different gadgets. – Image: Emerson
The modal attenuator from Emerson is a full-bore device providing 15-decibel sound suppression to cut back noise inside pipes produced by sources upstream, corresponding to management valves or different units. It is put in downstream of these gadgets in place of a pipe spool piece, it generates no extra pressure drop, and has no impression on process flow.
Until now, all options have generated significant pressure drop, lowered move, and/or launched obstructions. This has led some customers to install acoustic insulation to pipe sections to reduce noise, however this may be costly and cumbersome to install, and it does nothing to minimize back inside piping noise. pressure gauge addresses these and other issues with a drop-in answer, improving worker safety and regulatory compliance, while reducing the risk of injury to downstream tools because of excessive noise levels inner to piping.
Leading functions for the modal attenuator include these where upstream course of flows are modified by control valves, strain relief valves, pumps, compressors and other devices that generate noise. Many of those gadgets must be put in in lengths of piping with no flow restrictions downstream, and the modal attenuator works nicely in these functions 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 can be used in applications where particulates are suspended in process flows, and/or where pigging is required for cleansing and upkeep.
pressure gauge are supplied in sizes from 2–12 in, with American Society of Mechanical Engineer (ASME) flange rankings of Class one hundred fifty, 300 and 600. Pressure scores match the flange score sizes, and the utmost temperature is 700°F (371° C).
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