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10 Decommissioning
The work described in this chapter is to be
performed only by personnel appropriately
qualified to carry out such tasks.
DANGER
!
Risk of bursting due to incorrect opening of
pressurized equipment or components.
Regulators and pipelines are pressure
equipment that may burst when handled
incorrectly. Flying projectile fragments or the
release of process medium under pressure
can cause serious injury or even death.
Before working on the regulator:
Î Depressurize all plant sections concerned
and the regulator.
Î Drain the process medium from the plant
sections affected as well as from the
valve.
WARNING
!
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.
EB 3124 EN
WARNING
!
Risk of personal injury due to pressurized
components and as a result of process
medium being discharged.
Incorrect opening of pressure equipment or
mounting parts may lead to the process
medium escaping to the atmosphere.
Î Do not unscrew the control line while the
valve is pressurized.
Î Do not start up the regulator until all
parts have been mounted.
WARNING
!
Risk of hearing loss or deafness due to loud
noise.
Noise emission (e.g. cavitation) may occur
during operation caused by the process me-
dium and the operating conditions.
Î Wear hearing protection when working
near the valve. Follow the instructions
given by the plant operator.
WARNING
WARNING
!
!
Crush hazard arising from moving parts.
Î Do not insert hands or fingers between
the set point springs while the regulator
is in operation.
Î Before starting any work on the regula-
tor, depressurize plant sections as well as
the regulator.
Decommissioning
10-1
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