Flowserve IOM Control Valves - Manual (Page 22)

EN
3. Maintenance
Measure Interval
Clean valve and actuator spindle with
a soft cloth
depending on degree of contamination
Tighten if stuffing box leaks
Caution: Do not „over seal“
the stuffing box!
Check spring tension and tighten if
necessary
Standard stuffing boxes subjected to every 10,000 strokes
“normal“ operating conditions
Standard stuffing boxes subjected to
“difficult“ operating conditions
• packing exposed to aggressive medium
• major temperature change during operation
• occurrence of vibrations
• unfavourable installation position
every 5,000 strokes
Spring loaded stuffing box systems and every 100,000 strokes
“normal“ operating conditions at least once per year
Spring loaded stuffing box systems and every 10,000 strokes
“difficult“ operating conditions
Pneumatic linear actuators maintenance free
Electric linear/rotary actuators Check spindle/gear largely maintenance free
if required, lubricate every 200,000 up-and-down strokes
Electric linear/rotary actuators Grease (grease nipple) at least once per year
4. Repair
If a fault or defect occurs which, according to the list of measures
below, requires the customer services department or contract
partner to be contacted, the manufacturer’s guarantee shall be
rendered null and void - and the manufacturer released from
any responsibility - unless the customer services department
or contract partner is duly notified. If the customer performs the
repairs himself, these operating instructions and the respective
disassembly/assembly instructions must be followed to the letter
and carried out in a competent manner. Original replacement
parts must be used in every case.
Control valves are pressure vessels!
Improper opening of the actuator or fitting may result
in bodily injury!