Emerson Fisher Control-Disk, Fisher GX, Fisher C1, Fisher 2052, Fisher FIELDVUEDVC6200 Brochure

Safe and Reliable or Costly Mistake?

Your plant availability depends on it.

Beware of replicator parts.

You can find replicator parts for Fisher® control valves,
actuators, and instruments from a variety of sources. Sure,
some replicator parts look like they can do the job and fit
into Fisher equipment. But if you buy replicator parts, what
are you really getting? Parts that are not ideal for your
Fisher equipment.

Why you should care.

While replicator parts may initially cost less, you will pay
more in the long run.

Replicator parts typically do not last as long as genuine
Fisher parts, so you have to replace them more often. This
results in higher costs for additional parts and may cause
unplanned downtime impacting your profitability.

Sometimes replicator parts are even produced from
wrong or substandard materials. The proper materials of
construction—heat treatments, thermal history, NACE
processing requirements, proprietary coatings, chemical
formulation for non-metallic and composite components—
are critical. Using a replicator part made of wrong materials
for process fluids may threaten worker safety, cause
environmental concerns, damage operating equipment, or
cause a plant shutdown.

Replicator parts are not made to the specifications of
your Fisher equipment, and it is unlikely that the parts are
tested in actual Fisher equipment to verify performance.
Poorly performing replicator parts could lead to process
inefficiencies. Plus the use of unauthorized replacement
parts is not covered by our warranty.

In addition, replicator parts are not made using the
material quality controls, manufacturing techniques,
tooling, or inspection that are used for genuine Fisher parts.

Field reports.

Reports from our field offices confirm that using replicator
parts is simply a bad idea.

n A natural gas power plant rebuilt several Fisher valves

using replicator seat rings, plugs, and cages. Within days,
the valves began to fail. Emerson’s Instrument & Valve
Services evaluated the replicator trim and determined that
incorrect materials had been used, heat treating was not
performed, tolerances were not met, and several essential
design features were not incorporated.

n A power utility plant faced problems with valve trim

failure on Fisher valves that had been rebuilt by another
firm. Emerson’s Instrument & Valve Services inspected the
valves in the field and discovered that the pin was 45° out
of alignment. Service vibration caused the groove pin to
work loose allowing the plug to separate from the stem.

n The operators of a co-generation plant replaced trim in

a Fisher valve that had been in service for four years. To
save initial costs they had a local machine shop manufacture
replacement trim. Within two months the replacement
valve trim failed in high pressure service causing expensive
downtime. The machine shop trim did not meet critical
original design specifications.

n A test of genuine Fisher and replicator valve gaskets

revealed that the Fisher gaskets were superior in meeting
compression requirements, thickness, density, and other
critical aspects that affect stack height and ability to seal.
In fact, the replicator spiral wound gasket broke during
testing at 44% of the Fisher compression requirement.

n A nuclear plant experienced leaks at the bonnet-to-body

joint of several Fisher valves. Emerson service technicians
found that original gaskets had been replaced with those
from a local vendor. The problem was resolved when the
valves were rebuilt with genuine Fisher gaskets.

Specially formulated Fisher
O-rings for spring-and-diaphragm
and piston actuators have a solid
lubricant dispersed throughout
their cross section. As these
O-rings wear, new lubricant is
exposed, which maintains static
and dynamic friction coefficients
for consistent, smooth operation.

The standard Fisher easy-e
plug, and seat ring are constructed
of hardened stainless steel. Trim
parts are engineered, precision
manufactured, and tested to provide
reliable operation for years to come.

™

cage,

Genuine Fisher parts. No others can match their long-term performance.

Commonly replicated parts.

Commonly replicated soft parts include actuator
diaphragms, O-rings, packing rings, and seals. The plastics
and elastomers in these parts are extremely sensitive to
formulation and molding techniques.

Imagine what could happen if you installed an O-ring in
your valve without the proper chemical formulation.
The O-ring could fracture during flexure at low
temperature. Or it could be incompatible with the flowing
medium, ultimately losing its ability to seal.

For metal parts, precise dimensions and surface finishing
are critical. Vary design tolerances of trim sets, seat rings,
plug tips, shafts, bearings, and discs by the slightest bit,
and performance may suffer significantly.

Long-term advantage.

Genuine Fisher parts comply with international codes,
standards, and approvals including ASME, ANSI, ASTM,
ISA, CSA, FM, CENELEC, ATEX, CE, TÜV, and FCI. Experience
shows their built-in quality results in longer product life
and less downtime. Better control valves mean a better
process yielding better profits. And with greater safety.

The right part - right now.

Genuine Fisher parts are readily available from an Emerson
sales office wherever you are located.

Distribution centers in Asia, Europe, and North America
maintain a significant inventory of genuine Fisher parts.
The FisherFAST™ program uses that inventory to

Genuine Fisher packing systems
are engineered and tested to
operate in Fisher control valves at
various pressures and temperatures.
A given packing design has certain
characteristics concerning seal
performance, service life, and
friction. Emerson offers seven
Fisher packing selections to help
you choose the right solution for
your application.

The molded design and formulation
for Fisher actuator diaphragms is
tested to exceed 1,000,000 cycles
in our research and test labs. This
formulation also results in low­temperature flexibility (-60°F,

-51°C) that may not be matched by
replicator parts.

provide you the best spare and replacement part
deliveries. Options for delivery include same day, next day,
seven day, or emergency service.

Also available are convenient spare parts kits that contain
the parts typically needed for routine maintenance. They
simplify parts inventory management with the use of a
single kit number versus individual part numbers.

Local support.

Emerson parts consultants are ready to assist you
with your spare parts needs. They have access to the
original specification for your control valve, actuator,
or instrument (drawings, material specifications, heat
treatment information, and any non-destructive testing
requirements) even if the device is several decades old.

Call now.

The next time you need parts for your Fisher equipment,
contact the Emerson sales office in your area. Highly skilled
and experienced applications personnel are ready to help
you take advantage of the many benefits of genuine Fisher
parts.

Look for this mark
on the packaging of
genuine Fisher parts.

Emerson Process Management

Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Chatham, Kent ME4 4QZ UK
Dubai, United Arab Emirates
Singapore 128461 Singapore

www.EmersonProcess.com/Fisher

© 2012 Fisher Controls International LLC. All rights reserved.

Fisher, easy-e, and FisherFAST are marks owned by one of the companies in the Emerson Process Management
business unit of Emerson Electric Co. Emerson Process Management, Emerson, and the Emerson logo are
trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective
owners.

The contents of this publication are presented for informational purposes only, and while every effort has
been made to ensure their accuracy they are not to be construed as warranties or guarantees, express
or implied, regarding the products or services described herein or their use or applicability. All sales are
governed by our terms and conditions, which are available upon request. We reserve the right to modify
or improve the designs or specifications of such products at any time without notice. Neither Emerson,
Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection,
use, or maintenance of any product. Responsibility for proper selection, use, and maintenance of any
product remains solely with the purchaser and end user.

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