26
EB 3135-1 EN
Assembly
Pipeline routing
The inlet and outlet lengths vary depending
on the process medium and the flow condi
-
tions in the valve. To ensure the regulator
functions properly, follow the installation in-
structions given below:
Î
Observe the inlet and outlet lengths (see
Table 5). Contact SAMSON if the valve
conditions or states of the medium pro-
cess deviate.
Î
Install the regulator free of stress and
with the least amount of vibrations as
possible. If necessary, attach supports to
the valve.
Î
Install the regulator allowing sufficient
space to remove the electric actuator and
valve or to perform service and repair
work on them.
Support or suspension
The plant engineering company is responsi-
ble for selecting and implementing a suitable
support or suspension of the installed regula-
tor and the pipeline.
Depending on the regulator version and
mounting position, the regulator and pipe-
line must be supported or suspended.
Do not attach supports directly to the valve
or actuator.
Note
NOTICE
!
5.3
Additional fittings
Strainer
A strainer (see Fig. 5) installed upstream in
the flow pipe holds back any dirt or other
foreign particles carried along by the medi-
um. For example, the SAMSON Type 1 NI
Strainer is suitable (
u
−
Install the strainer upstream of the regu-
lator.
−
Make sure the direction of flow matches
the direction indicated by the arrow on
the body.
−
Install the strainer with the filter element
facing downward.
−
Allow sufficient space to remove the filter.
Shut-off valve
Install a hand-operated shut-off valve both
upstream of the strainer and at the outlet of
the return flow pipe (see Fig. 5). This allows
the plant to be shut down for cleaning and
maintenance, and when the plant is not used
for longer periods of time.
Pressure gauge
Install a pressure gauge at a suitable point to
monitor the pressures prevailing in the plant
(see Fig. 5).
