Samson 3351 - Mounting the Device

EB 8039 EN 5-3
Installation
− The valve and all valve accessories (in-
cluding piping) are not damaged.
− The valve data on the nameplate (type
designation,valvesize,material,pres-
sure rating and temperature range)
matchtheplantconditions(sizeand
pressure rating of the pipeline, medium
temperature etc.). See the 'Markings on
the device' section for nameplate details.
− The requested or required additional
pipettings(see'Additionalttings'in
the 'Design and principle of operation'
section) have been installed or prepared
as necessary before installing the valve.
Risk of control valve damage due to incor-
rect insulation.
Î Do not insulate valves mounted to com-
ply with NACE MR0175 requirements
and which have nuts and bolts that are
not suitable for sour gas environments.
Proceed as follows:
Î Lay out the necessary material and tools
to have them ready during installation
work.
Î Flush the pipelines.
The plant operator is responsible for clean-
ing the pipelines in the plant.
Î For steam applications, dry the pipelines.
Moisture will damage the inside of the
valve.
Î Checkanymountedpressuregaugesto
make sure they function properly.
Î When the valve and actuator are al-
ready assembled, check the tightening
torquesoftheboltedjoints.Components
may loosen during transport.
5.3 Mounting the device
The activities listed below are necessary to
install the valve and before it can be started
up.
Risk of valve damage due to excessively
high or low tightening torques.
Observe the specied torques when tighten-
ing control valve components. Excessive
tightening torques lead to parts wearing out
more quickly. Parts that are too loose may
cause leakage.
Î Observe the specied tightening torques
(see the 'Tightening torques, lubricants
and tools' section in the annex).
Risk of valve damage due to the use of
unsuitable tools.
Î Only use tools approved by SAMSON
(see the 'Tightening torques, lubricants
and tools' section in the annex).
NOTICE
!
Note
NOTICE
!
NOTICE
!