Brochure

QUIETING NOISE
Process plants require controlled noise levels to protect
employees. Reduced fenceline noise levels are also
necessary to maintain good relationships with adjacent,
populated areas.
Fisher noise attenuation technologies enable effective
noise-reducing control valves and provide installed
predicted noise levels consistently, for compliance with
regulatory limits.
Supported with a 4,738 m
2
(51,000 ft
2
) facility and a
unique 2,415 m
2
(26,000 ft
2
) sound chamber, Emerson
can accurately quantify noise from piping and vents. Test
programs are conducted on Fisher control valves, valve
trim, silencers, diffusers, and spargers as well as tees,
elbows, reducers, and expansions to determine their
contribution to overall noise.
Accelerometers and pressure transducers are used to
measure pipewall vibration and sound level.
Acoustics expertise is utilized at all stages, from product
development to application, quotation, and as-installed
performance. Experts are available to analyze the entire
plant environment and solve noise problems beyond the
control valve.
DIAGNOSING CONTROL VALVES LOCALLY
Process equipment maintenance must be planned, yet it
is difficult to know which equipment needs maintenance.
Since control valves are the primary elements in the loop
that actually adjust the process, their performance is
fundamental.
Since their introduction, Fisher digital valve controllers
have changed the way plants monitor control valves.
Features such as auto calibration; linkage-less, non-contact
feedback; and on-line performance diagnostics provide
unsurpassed real-time plant performance. More than 50
patents have been awarded for the product line.
Hazardous areas or hard-to-reach locations present barriers
to locally verifying proper control valve performance. In the
past, local diagnostics required technicians to use laptops in
the field.
Emerson mobile technology offers a solution to this
longstanding problem through the use of handheld field
communicators. This tool of choice for maintenance
technicians has been expanded to include control valve
diagnostics. Fisher application software allows the
extension of the technology to other handheld platforms,
such as PDAs and smartphones. Catwalks, ladders, or other
difficult locations no longer present a barrier to maintenance
technicians. Diagnostic tests can now be run with ease and
mobility.
Fisher
®
Technology Development | 5