6 Commissioning/Start-up/Shutdown
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NOTE
Globe valves are normally used in either "fully open" or "fully closed" position. For
control functions, valves should be fitted with throttling plugs, unless throttling
plugs are installed as standard.
CAUTION
Excessively long idle periods
Damage to the valve!
▷
Check the function by opening and closing the valve at least once or twice a
year.
CAUTION
Vibration
Excessive wear or damage to the valve!
▷
Change the system parameters.
▷
Use throttling plugs or V-port plugs in throttling applications to minimise
vibration.
CAUTION
Use of levers
Damage to the valve as a result of excessive forces!
▷
Only actuate handwheel-operated valves by hand.
▷
Levers may only be used in exceptional cases and in compliance with the
following tables.
▷
Do not use levers in the area of the position indicator.
6.2 Shutdown
6.2.1 Measures to be taken for shutdown
During prolonged shutdown periods, ensure that the following conditions are met:
1.
Drain fluids which change their physical condition due to changes in
concentration, polymerisation, crystallisation, solidification, etc. from the piping.
2.
If required, flush the piping with the valves fully opened.
Summary of Contents for ECOLINE FYC
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