14 Inspection/maintenance
Hot plant components!
▶ Risk of burns.
Only work on plant that has cooled
●
down.
The equipment is subject to pressure!
▶ Risk of severe injury or death.
Depressurize the plant.
●
Completely drain the plant.
●
Servicing and maintenance work must only be performed
●
by trained personnel.
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. However, the operator must
carry out regular visual examinations of the ball valves, de-
pendent on the operating conditions and the potential 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.
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14 Inspection/maintenance
GEMÜ BB02