Mounting Of Accessories; Control Function; Control Function 2 And; Commissioning - GEM 554 Installation, Operating, & Maintenance Instructions

Actuators 0K, 1K, 2K, 3L and 4L
Nominal size
DN 15
DN 20
DN 25
DN 40
DN 50
DN 65
12.4

Mounting of accessories

12.4.1 Control function 1

1. Remove cap.
2. Move actuator to the open position.
3. Actuator size B: Remove optical position
indicator with a light rotation of a pliers.
4. Other actuator sizes: Unscrew the optical
position indicator.
5. Disconnect actuator from control
medium lines.
6. Mount accessories (see relevant
mounting instructions).

12.4.2 Control function 2 and 3

1. Disconnect actuator from control
medium lines.
2. Remove cap.
3. Mount accessories (see relevant
mounting instructions).
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Commissioning

WARNING
Corrosive chemicals!
® Risk of caustic burns!
Check the tightness of the
G
media connections prior to
commissioning!
Use only the appropriate
G
protective gear when
performing the tightness
check.
CAUTION
Protect against leakage!
Provide precautionary measures
G
against exceeding the maximum
permitted pressures caused by
pressure surges (water hammer).
554
Prior to cleaning or commissioning the
plant:
Torques [Nm]
90 G
90
100
G
120
150
200
Cleaning:

14
1. Use appropriate protective gear as
2. Shut off plant or plant component.
3. Secure against recommissioning.
4. Depressurize the plant or plant
The operator must carry out regular visual
examination of the valves dependent on
the operating conditions and the potential
danger in order to prevent leakage
and damage. The valve also has to be
disassembled in the corresponding intervals
and checked for wear (see chapter 12
"Assembly / Disassembly of spare parts").
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Check the tightness and the function of
the valve (close and reopen the valve).
If the plant is new rinse the piping system
with a fully opened valve (to remove any
harmful foreign matter).
The plant operator is responsible for
selecting the cleaning material and
performing the procedure.

Inspection and servicing

WARNING
The equipment is subject to pressure!
® Risk of severe injury or death!
Only work on depressurized plant.
G
CAUTION
Hot plant components!
® Risk of burns!
Only work on plant that has
G
cooled down.
CAUTION
Serving and maintenance work may
G
only be performed by trained personnel.
GEMÜ shall assume no liability
G
whatsoever for damages caused
by improper handling or third-party
actions.
In case of doubt, contact GEMÜ before
G
commissioning.
specifi ed in plant operator's guidelines.
component.