11
Installation and operation
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
specifi ed 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.
Direction of the working medium:
Flow direction:
under the seat*
Actuators 0, 1, 2
* Preferred fl ow direction with
incompressible liquid media to avoid
"water hammer".
The fl ow direction is indicated by an
arrow on the valve body:
2/2-way body
Actuators 0, 1, 2
Angle body
Actuators 0, 1, 2
27 / 40
CAUTION
over the seat
Actuators 3,4
2/2-way body
Actuators 3, 4
Angle body
Actuators 3, 4
514