Samson 3351 - Removal; Removing the Valve from the Pipeline

EB 8039 EN 11-1
Removal
11 Removal
The work described in this section is to be
performed only by personnel appropriately
qualiedtocarryoutsuchtasks.
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.
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 residual pro-
cess medium in the valve.
While working on the valve, residual me-
dium can ow out of the valve and, depend-
ing on its properties, cause personal injury,
e.g. (chemical) burns.
Î Wear protective clothing, safety gloves,
respiratory protection and eye protec-
tion.
Risk of personal injury due to preloaded
springs.
The valve is tted with an actuator with pre-
loaded springs that are under tension.
Î Before starting any work on the control
valve, relieve the compression from the
preloaded springs (see section11.2).
Before removing the valve, make sure the fol-
lowing conditions are met:
− The control valve is put out of operation
(see the 'Decommissioning' section).
11.1 Removing the valve from
the pipeline
1. Support the valve to hold it in place
when separated from the pipeline (see
the 'Shipment and on-site transport' sec-
tion).
2. Unbolttheangedjoint.
3. Remove the valve from the pipeline (see
the 'Shipment and on-site transport' sec-
tion).
WARNING
!
WARNING
!
WARNING
!
WARNING
!