Samson 3253, Перевод оригинальной инструкции

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EB 8055 EN 5-1
Installation
5 Installation
The work described in this section is only to
be performed by personnel appropriately
qualified to carry out such tasks.
5.1 Installation conditions
Work position
The work position for the control valve is the
front view looking onto the operating con
-
trols (including valve accessories).
Plant operators must ensure that, after instal-
lation of the device, the operating personnel
can perform all necessary work safely and
easily access the device from the work posi
-
tion.
Pipeline routing
The inlet and outlet lengths vary depending
on several variables and process conditions
(e.g. caused by the process medium) and lie
within the responsibility of the plant engi
-
neering company. To ensure that the valve
functions properly, proceed as follows:
Î
Install the valve free of stress and with the
least amount of vibrations as possible.
Read information under ‘Mounting posi-
tion’ and ‘Support or suspension’ in this
section.
Î
Install the valve allowing sufficient space
to remove the actuator and valve or to
perform service work on them.
Î
In heating or cooling applications, the
valve can be installed in the flow pipe or
return flow pipe (see Fig. 5-1).
Mounting position
Generally, we recommend installing the
valve with the actuator upright and on top of
the valve.
In the following versions, the valve
must be
installed with the actuator on top:
− Valves in DN 100 and larger
− Valves with insulating section for low
temperatures below –10 °C
Î
Contact SAMSON if the mounting posi-
tion is not as specified above.
Support or suspension
The plant engineering company is responsi-
ble for selecting and implementing a suitable
support or suspension of the installed control
valve and the pipeline.
Depending on the valve version and mount -
ing position, the valve, actuator and pipeline
must be supported or suspended.
Valves, which are not installed in the pipe
-
line in the upright position with the actuator
on top, must be supported or suspended.
Valve accessories
Î
During connection of valve accessories,
make sure that they are easily accessible
and can be operated safely from the
work position.
Vent plugs
Vent plugs are screwed into the exhaust air
ports of pneumatic and electropneumatic de -
vices. They ensure that any exhaust air that
Note