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 pipe wall 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, FIELDVUE instruments have
changed the way plants monitor control valves. Features
such as autocalibration; 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
long-standing 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
tablets and smart phones. 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