Emerson Fisher GX, Fisher FIELDVUEDVC2000 Brochure
®
Fisher GX Control Valves
Fisher® GX
Control Valves
Innovation. Technology. Reliability.
merson engineers started with a clean slate
in developing Fisher
E
goal was to bring unmatched innovation, technology
and reliability to control valve ownership. GX control
valves are the result. They provide reliable operation
over a wide range of applications and come in a
variety of sizes and materials.
position and pressure status in one of 7 languages.
No other control valves offer the innovation,
technology and reliability of digital Fisher GX valves.
®
GX control valves. Their
Designed to meet your
needs, digital GX control
valves with integrated
FIELDVUE
instruments feature
non-contact, linkage-less
technology. DVC2000
instruments give local
indication of valve travel
™
DVC2000
Wide Range of Application
The GX product line lets you meet a wide range
of flow and pipeline sizing requirements. A 3-Way
construction is available, which is perfectly suited for
accurate temperature control.
The engineered passages within the GX valve body
provide optimal capacity and create a stable flow
pattern for smooth operation in every valve size.
Actuator sizing and selection is determined
automatically by the valve body configuration. No
extra engineering is required.
The GX actuator controls up to a 51.7 bar (750 psig)
pressure drop. Its multi-spring design is fieldreversible from spring-open to spring-close action.
A carefully selected lineup of valve body and trim
materials means you can apply the GX to a wide
range of service situations. Carbon and stainless
steels are GX standards along with a choice of several
alloys for more corrosive applications.
Metal-to-metal seating is standard, with options
including PTFE soft seating for Class VI shutoff and
hardened trim with a Stellite overlay for erosive
applications.
You can use the GX for either throttling or on-off
control, with or without a positioner. Digital and
analog positioners can be specified, as well as
auxiliary solenoids, limit switches and other
accessories. The GX is compatible with the NAMUR
(IEC 60534-6-1) mounting standard.
You told us what you wanted
Integrated Digital Technology
A typical GX configuration features the FIELDVUE
DVC2000 digital valve controller. The industryleading FIELDVUE digital valve controller brings easier
control, enhanced performance and unduplicated
maintenance advantages to control valve
applications.
As such, they present critical operating information
about themselves and the process to enable plant
personnel to make better-informed decisions.
The PlantWeb digital plant architecture offers
proven improvements in system availability, reduced
variability, increased throughput and enhanced
product quality.
In fact, FIELDVUE instruments provide
much more than traditional valve
positioning. They are core components
of Emerson’s PlantWeb
architecture.
™
digital plant
Easy to Maintain
The GX is robust and compact. Its design architecture features common
parts across all sizes, which reduces spare parts inventory requirements
and associated costs.
Actuator removal is quick and easy. The actuator can be easily field
reversed to a fail-open or fail-closed configuration.
The digital GX with integrated DVC2000 features linkage-less,
non-contact position feedback, which eliminates mechanical wear
between the valve and instrument. The digital GX features an integral
interface to eliminate tubing for most applications, further simplifying
maintenance issues found in most control valve assemblies today.
The one-piece packing follower threads into the bonnet to simplify
installation and adjustment of the packing system. The system employs
live-loading to compensate for normal wear.
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