22
EB 2520 EN
Mounting and start-up
−
Observe the permissible ambient tem-
peratures (see section 3.1).
5.1.2
Mounting orientation
Standard
Preferably install the regulator in a horizon-
tal pipeline. The actuator housing with set
point adjuster must face upwards.
Fig. 8:
Installation in hori-
zontal pipelines
Î
Install the control line to the tapping
point with an approx. 10 % slope to al
-
low any condensing liquid to flow back
into the tank or pipe.
Options
Alternatively, the valve can be installed in a
vertical pipeline. The actuator housing with
set point adjuster must face sideways.
Fig. 9:
Installation in vertical
pipelines
Control deviations due to alternative instal-
lation.
System deviations may arise when the regu
-
lator is installed in vertical pipelines.
NOTICE
!
5.1.3
Additional fittings
Strainers
We recommend installing a strainer (e.g.
SAMSON Type 2 N) upstream of the regula
-
tor. It prevents solid particles in the process
medium from damaging the valve.
Î
Install the strainer upstream of the tem-
perature regulator. The arrow on the
valve indicates the direction of flow.
Î
For installation in vertical pipeline: install
the strainer with the filter element facing
downwards.
Î
Install the filter with sufficient space avail
-
able to remove the filter.
Î
Check the strainer at regular intervals
and clean it, if necessary.
Shut-off valve
Install a hand-operated shut-off valve both
upstream of the strainer and downstream of
the regulator. 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 gauges
Install a pressure gauge both upstream and
downstream of the regulator to monitor the
pressures prevailing in the plant.
Summary of Contents for 2405 Series
Page 36: ...36 EB 2520 EN Certificates...
