EB 8140 EN
35
Decommissioning and disassembly
9 Decommissioning and
disassembly
Risk of bursting in pressure equipment.
Valves and pipelines are pressure equip
-
ment. Improper opening can lead to valve
components bursting.
−
Before starting any work on the valve, de
-
pressurize all plant sections concerned as
well as the valve.
−
Drain the process medium from all the
plant sections concerned as well as the
valve.
−
Wear personal protective equipment.
Risk of personal injury due to residual pro
-
cess medium in the valve.
While working on the valve, residual process
medium can escape and, depending on its
properties, may lead to personal injury, e.g.
(chemical) burns.
Wear protective clothing, safety gloves and
eyewear.
Risk of burn injuries due to hot or cold com
-
ponents and pipeline.
Valve components and the pipeline may be
-
come very hot or cold. Risk of burn injuries.
−
Allow components and pipelines to cool
down or heat up.
−
Wear protective clothing and safety gloves.
9.1 Decommissioning
1. Close the shut-off valve in the pipeline.
2. Completely drain the pipelines and
valve.
3.
Depressurize the plant.
4. If necessary, allow the pipeline and valve
components to cool down or heat up.
9.2 Removing the valve from
the pipeline
1. Put the control valve out of operation (see
section 9.1).
2.
Unbolt the flange joint.
3. Remove the valve from the pipeline.
9.3 Disposal
Î
Observe local, national and international
refuse regulations.
Î
Do not dispose of components, lubricants
and hazardous substances together with
your other household waste.
DANGER
!
WARNING
!
WARNING
!