Brochure

Retrieve performance to optimal levels
Following the identification of a poten-
tial problem it is necessary to identify
the specific actions that are necessary
to retrieve performance to its original,
benchmarked level. Often problems
can be resolved with the control valve
in line, avoiding the costs of removal
and the potential for lengthy shut-
downs.
Diagnostic tests can be performed by
site personnel, or by Emerson engi-
neers. Tests are performed when the
plant is shut down, or the valve
bypassed. Diagnostic analysis, which
compares the results to the initial
benchmark data can be performed on-
site by suitably trained and experi-
enced technicians or the information
can be emailed to the Emerson
European diagnostic centre where
experienced engineers can confirm a
problem diagnosis or suggest further
actions. The analysis identifies a
potential cause which enables the cor-
rect parts to be purchased and the
labour requirements to be identified,
prior to the work being carried out.
Parts for Fisher valves are available
through the FAST service which can
supply 90 per cent of routine parts to
European destinations within 24
hours. A further 20,000 items are
available within seven days.
Following the maintenance, further
diagnostic tests can be performed to
ensure performance has been satisfac-
torily retrieved and to provide new
benchmark information for continued
monitoring.
To maintain optimum
loop performance con-
trol valve condition
should be monitored,
on-line while the plant is
operational.
Following the identifica-
tion of a potential prob-
lem actions must be
taken to retrieve per-
formance to previous lev-
els.