EB 8332-2 EN
11-1
Decommissioning
11 Decommissioning
The work described in this section is only to
be performed by personnel appropriately
qualified to carry out such tasks.
Risk of fatal injury due to electric shock.
Î
Before disconnecting live wires, switch
off the supply voltage at the actuator and
protect it against unintentional reconnec
-
tion.
Risk of personal injury due to residual
process medium in the valve.
While working on the valve, residual me
-
dium can flow out of the valve and, depend
-
ing on its properties, cause personal injury,
e.g. (chemical) burns.
Î
Wear protective clothing, safety gloves
and eye protection.
Risk of burn injuries due to hot or cold
components and pipeline.
Valve components and the pipeline may be
-
come very hot or cold. Risk of burn injuries.
Î
Allow components and pipelines to cool
down or warm up to the ambient tem
-
perature.
Î
Wear protective clothing and safety
gloves.
To decommission the electric actuator for re-
pair work or disassembly, proceed as fol-
lows:
Î
Put the control valve out of operation (see
associated valve documentation).
Î
Disconnect the supply voltage and pro-
tect it against unintentional reconnection.
Î
Make sure that a signal from the control-
ler cannot act upon the actuator.
For versions with "actuator stem extends"
fail-safe action, the supply voltage must re
-
main connected to prevent the actuator stem
extending by itself.
DANGER
!
WARNING
!
WARNING
!
Note
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