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16 Inspection/servicing
16 Inspection/servicing
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.
The operator must carry out regular visual examinations of
the ball valves, dependent on the operating conditions and the
potential danger in order to prevent leakage and damage. The
ball valve also has to be removed in corresponding intervals
and checked for wear (see chapter "Removal from piping").
GEMÜ 798
WARNING
CAUTION
CAUTION
16.1 General information regarding actuator
replacement
The following tools are required for actuator replacement:
Allen key
●
● Check the position of the ball indicated by the groove SZ
and compare with position indicator, rotate ball valve to
correct position if necessary.
ð Groove transverse to piping direction:
Ball valve closed.
ð Groove in piping direction:
Ball valve open.
▶ For flanged bodies, the actuator is fitted offset by 90°.
16.2 Replacing the actuator
Risk of electric shock
▶ Risk of injury or death (if operating
▶ Adjustments are made with the actu-
▶ Electric shock can cause severe burns
●
●
44 / 51
NOTICE
SZ
NOTICE
DANGER
voltage is higher than safe extra low
voltage).
ator cover removed.
and fatal injury.
Always disconnect the product from
power supply!
Therefore, have all work performed
only by qualified electricians.
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