Removal; Removing The Valve From The Pipeline - Samson 3351 Mounting And Operating Instructions

11 Removal

The work described in this section is to be
performed only by personnel appropriately
qualified to carry out such tasks.
WARNING
!
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.
WARNING WARNING
! !
Risk of personal injury due to residual pro-
cess 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,
respiratory protection and eye protec-
tion.
WARNING
!
Risk of personal injury due to preloaded
springs.
The valve is fitted 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).
EB 8039 EN
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 flanged joint.
3. Remove the valve from the pipeline (see
the 'Shipment and on-site transport' sec-
tion).
Removal
11-1