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17 Inspection/maintenance
17 Inspection/maintenance
The equipment is subject to pressure!
▶ Risk of severe injury or death
Depressurize the plant.
●
Completely drain the plant.
●
Hot plant components!
▶ Risk of burns
Only work on plant that has cooled
●
down.
Servicing and maintenance work must only be performed
●
by trained personnel.
Do not extend hand lever. GEMÜ shall assume no liability
●
whatsoever for damages caused by improper handling or
third-party actions.
In case of doubt, contact GEMÜ prior to commissioning.
●
1. Use appropriate protective gear as specified in plant oper-
ator's guidelines.
2. Shut off plant or plant component.
3. Secure against recommissioning.
4. Depressurize the plant or plant component.
Ball valves are maintenance-free. No lubrication or routine
maintenance of the ball valve shaft is required. The shaft is
guided through a PTFE gland packing in the ball valve body.
The shaft seal is pretensioned and self-adjusting. However,
the operator must carry out regular visual examinations of the
ball valves, dependent on the operating conditions and the po-
tential danger in order to prevent leakage and damage.
If there is a leakage at the spindle nut, this can generally be
rectified by retightening the spindle nut. However, overtighten-
ing the spindle nut must be avoided.
Usually, retightening by between 30° and 60° will be sufficient
to rectify the leakage.
GEMÜ B56
WARNING
CAUTION
CAUTION
38 / 48
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