EB 3018 EN 7-1
Operation
7 Operation
Immediately after completing start-up or
placing the regulator back into service (see
the 'Start-up' section), the regulator is ready
for use.
Risk of burn injuries due to hot or cold
components and pipeline.
Regulator components and the pipeline may
become very hot or cold. Risk of burn inju-
ries.
Î Allow components and pipelines to cool
down or warm up to the ambient tem-
perature.
Î Wear protective clothing and safety
gloves.
Risk of personal injury due to pressurized
components and process medium being
discharged.
Î Do not loosen the control line while the
valve is pressurized.
Risk of hearing loss or deafness due to loud
noise.
Noise emission (e.g. cavitation or ashing)
may occur during operation caused by the
process medium and the operating condi-
tions.
Î Wear hearing protection when working
near the valve.
WARNING
!
WARNING
!
WARNING
!
Crush hazard arising from moving parts.
The regulator contains moving parts (actua-
tor and plug stem), which can injure hands
or ngers if inserted into the valve.
Î Do not insert hands or nger into the
yoke while the valve is in operation.
Î Disconnect the supply voltage and pro-
tect it against unintentional reconnection
before performing any work on the con-
trol valve.
Î Do not impede the movement of the actu-
ator or plug stem by inserting objects in-
to their path.
Î Before unblocking the actuator and plug
stem after they have become blocked
(e.g. due to seizing up after remaining in
the same position for a long time), re-
lease any stored energy in the actuator
(e.g. spring compression). See associat-
ed actuator documentation.
Î Before starting any work on the regula-
tor, depressurize plant sections as well as
the regulator.
WARNING
!
WARNING
!
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