Brochure
Fisher V500 Rotary Eccentric Plug Valve | 7
CUSTOMER PROVEN RESULT
n APPLICATION: Recausticizing unit in a pulp mill.
n CHALLENGE: Erosive lime mud washed out the trim and body of an NPS 3 plug valve with standard trim (316L/Stellited plug, 316
seat ring) every four to six weeks. Cost of repair was $5,000 USD every six weeks.
n SOLUTION: NPS 3 Fisher V500 valve with stainless steel body and trim level 4 operating in the reverse ow direction.
n RESULTS: After ve months of service, valve diagnostics revealed that the Fisher V500 valve is in “like new” condition. Improved
reliability allows better operation and reduced maintenance costs of $17,000 USD. The customer now avoids additional production
losses due to downtime caused by the previous valve.
CUSTOMER PROVEN RESULT
n APPLICATION: Flash tank valves in a power plant.
n CHALLENGE: The original ball valve had to be repaired and replaced every six months. This was due to the ashing service and the valve
was also oversized. Cost of repair or replacement was $3,500 to $7,000 USD. The customer needed to increase the life and performance of
valve in the application.
n SOLUTION: Fisher V500 valve with trim level 3 with a reduced port for better control.
n RESULTS: After 12 months, the Fisher V500 valve is providing better control and performance.
CUSTOMER PROVEN RESULT
n APPLICATION: Diluted bitumen furnace feed valves.
n CHALLENGE: The demanding process of extracting bitumen from sand caused frequent, unplanned maintenance on several furnace
charge valves. Every three to four months, the customer shut down the process and replaced valve trim due to excessive erosion.
n SOLUTION: Fisher V500 valves with specially-congured trim.
n RESULTS: Fisher V500 valves have extended time between unit turnarounds, improved process control, and reduced the cost of
maintenance.
V500 Valve Fluid Compatibility Guidelines
Erosive Dirty Clean Viscous Corrosive
Fibrous
Slurry
A A A B B C
A = Best choice. Highly suited to this type of service.
B = Good choice. May require the use of options for enhanced performance.
C = Not recommended for this service.
Choice of Construction Materials
One of the advantages of the Fisher
V500 valve is its ability to adapt to tough
applications and help you increase plant
availability. The key to this adaptation is
the availability of four standard trim levels
to fit your hard-to-handle applications.
Each trim level is built to withstand
different degrees of erosive, dirty, or
abrasive processes. Changing to a higher
or tougher trim level or adding an internal
body coating may help to increase your
valve’s operating life. To find out if there
is an opportunity to increase your plant
availability, contact an Emerson local
business partner or sales office.