Emerson introduces silencer to protect staff

Emerson has launched the Fisher WhisperTube Modal Attenuator for noisy gas or vapour applications, which provides noise reduction in compressible fluid service for improved worker safety, with no impression on process flow.
The modal attenuator is a full-bore gadget offering 15-decibel sound suppression to scale back noise inside pipes produced by sources upstream, similar to management valves or other units. – Image: Emerson
The modal attenuator from Emerson is a full-bore gadget offering 15-decibel sound suppression to reduce back noise inside pipes produced by sources upstream, corresponding to control valves or different gadgets. It is installed 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 stress drop, reduced move, and/or launched obstructions. This has led some customers to put in acoustic insulation to pipe sections to reduce noise, but this can be expensive and cumbersome to install, and it does nothing to minimize back internal piping noise. The modal attenuator addresses these and other points with a drop-in solution, bettering worker security and regulatory compliance, while decreasing the chance of injury to downstream gear as a end result of high noise levels inner to piping.
Leading functions for the modal attenuator embrace those the place upstream process flows are modified by management valves, pressure relief valves, pumps, compressors and different units that generate noise. Many of those devices have to be installed in lengths of piping with no flow restrictions downstream, and the modal attenuator works properly in these purposes as a outcome of it introduces no such restrictions.
In addition, the modal attenuator does not introduce an obstruction into the piping, so it can be utilized in applications the place particulates are suspended in course of flows, and/or where pigging is required for cleaning and maintenance.
pressure gauge 0 10 bar ราคา are supplied in sizes from 2–12 in, with American Society of Mechanical Engineer (ASME) flange ratings of Class 150, 300 and 600. Pressure ratings match the flange score sizes, and the maximum temperature is 700°F (371° C).

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