Inspection And Servicing; Replacement Of Spare Parts - GEM N085 Installation, Operating And Maintenance Instruction

13

Inspection and servicing

WARNING
The equipment is subject to pressure!
® Risk of severe injury or death!
Only work on depressurized plant.
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CAUTION
Hot plant components!
® Risk of burns!
Only work on plant that has
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cooled down.
CAUTION
Servicing and maintenance work must
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only be performed by trained personnel.
GEMÜ shall assume no liability
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whatsoever for damages caused
by improper handling or third-party
actions.
In case of doubt, contact GEMÜ before
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commissioning.
1. Use appropriate protective gear as specifi ed
in plant operator'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
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 corresponding intervals
and checked for wear (see chapter 13.2

"Replacement of spare parts").

N085, N185
13.1 Replacement of spare parts
Important:
After disassembly, clean all parts
of contamination (do not damage
parts). Check parts for potential
damage, replace if necessary (only
use genuine parts from GEMÜ).
13.1.1 Replacement of spare parts GEMÜ N085
8
6
3
4
1. Unscrew the cap 10 from the valve bonnet
2 .
2. Loosen the lock nut 7.
3. Loosen the set screw 8 until the
compression spring 6 is released.
4. Loosen the cylindrical screws 9.
5. Remove the valve body
6. Clean the valve if it is heavily soiled.
7. Hold the piston 4 with an appropriate tool
from below to prevent twisting.
8. Remove the diaphragm 3.
9. Press the piston 4 upwards and remove it.
10. Remove the compression spring 6.
Reassembly is the same procedure in
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reverse.
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10
7
2
9
5
1
1.