Gemü 534 Original Einbau- Und Montageanleitung Seite 23

11 Installation and connection
Prior to installation:
Ensure that valve body and seal material
G
are appropriate and compatible to handle
the working medium.
See chapter 6 "Technical data".
11.1 Installing the valve
WARNING
The equipment is subject to pressure!
® Risk of severe injury or death!
Only work on depressurized plant.
G
WARNING
The actuator cover is under spring
pressure!
® Risk of severe injury or death!
Do not open the actuator!
G
WARNING
Corrosive chemicals!
® Risk of caustic burns!
Wear appropriate protective
G
gear when installing.
CAUTION
Hot plant components!
® Risk of burns!
Only work on plant that has
G
cooled down.
CAUTION
Never use the valve as a step or an aid
for climbing!
® This entails the risk of slipping-off or
damaging the valve.
CAUTION
Do not exceed the maximum
permissible pressure!
® Take precautionary measures to
avoid possible pressure surges
(water hammer).
Installation work must only be performed
G
by trained personnel.
Use appropriate protective gear as
G
specified in plant operator's guidelines.
Installation location:
Do not apply external force to the valve.
G
Choose the installation location so that
G
the valve cannot be used as a foothold
(climbing aid).
Lay the pipeline so that the valve body
G
is protected against transverse and
bending forces, and also vibrations and
tension.
Only mount the valve between
G
matching aligned pipes.
Mounting position:

For valves with a regulating cone we
recommend to mount the actuator
vertically upright (preferred) or vertically
down to optimize the service life.
Please note the flow direction!

Direction of the working medium:
Actuators 0, 1, 2
Flow under
the seat*
* Preferred flow direction with
incompressible liquid media and steam
to avoid "water hammer".
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CAUTION
Actuators 3, 4
Flow over
the seat
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