Samson 3241, Монтаж и эксплуатация

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EB 8012 EN 31
Mounting and start-up
Note:
−
Remove the mounted actuator be -
fore mounting the other actuator
(see associated actuator documen -
tation).
−
Preloading the actuator springs in-
creases the thrust of a pneumatic
actuator and reduces the travel
range of the actuator (see associat -
ed actuator documentation).
5.2 Installing the valve into the
pipeline
5.2.1 Checking the installation
conditions
Pipeline routing
The inlet and outlet lengths vary depending
on the process medium. To ensure the control
valve functions properly, follow the installa-
tion instructions given below:
Î
Observe the inlet and outlet lengths (see
Table 6). Contact SAMSON if the valve
conditions or states of the medium pro-
cess deviate.
Î
Install the valve free of stress and with the
least amount of vibrations as possible. If
necessary, attach supports to the valve.
Î
Install the valve allowing sufficient space
to remove the actuator and valve or to
perform service and repair work on
them.
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 NPS 4 and larger
− Valves with insulating section for low
temperatures below –10 °C (14 °F)
Î
Contact SAMSON if the mounting posi-
tion is not as specified here.
Support or suspension
Depending on the valve version and mount-
ing position, the control valve and pipeline
must be supported or suspended. The plant
engineering company is responsible in this
case.
NOTICE
Premature wear and leakage due to
insufficient support or suspension.
In the following versions, the control
valve must be supported or sus -
pended:
− Valves that are not installed with
the actuator upright on top of the
valve.
Attach a suitable support or suspen -
sion to the valve.
