Actuator Mounting On The Valve Body; Commissioning; Inspection And Servicing - Gemü 695 Original Einbau- Und Montageanleitung

11.4 Actuator mounting
on the valve body
1. Move actuator A to the open position.
2. Position actuator A with the mounted
diaphragm 2 on the valve body 1,
aligning the diaphragm weir and valve
body weir.
3. Insert and tighten the bolts 18 with
washers 19 by hand (hand tight only).
4. Move actuator A to the closed position.
5. Fully tighten the bolts 18 diagonally.
6. Ensure that the diaphragm 2 is
compressed evenly (approx. 10-15 %,
visible by an even bulge to the outside).
7. Check tightness of completely
assembled valve.
Important:
Diaphragms set in the course
of time. After valve installation
and commissioning you must
retighten the bolts 18 (see chapter
19 "Sectional drawing and spare
parts").
12

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).
695
Prior to cleaning or commissioning the
plant:
Check the tightness and the function of
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the diaphragm valve (close and reopen
the diaphragm valve).
If the plant is new and after repairs rinse
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the piping system with a fully opened
diaphragm valve (to remove any harmful
foreign matter).
Cleaning:
The plant operator is responsible for

selecting the cleaning material and
performing the procedure.
13

Inspection and servicing

The equipment is subject to pressure!
® Risk of severe injury or death!
Only work on depressurized plant.
G
Hot plant components!
® Risk of burns!
Only work on plant that has
G
cooled down.
Servicing 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
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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
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WARNING
CAUTION
CAUTION