24
EB 3131 EN
Mounting and start-up
5 Mounting and start-up
5.1
Mounting orientation
Standard mounting position
Î
Install the regulator in a horizontal
pipeline with the set point adjuster (10)
facing downward (see Fig. 2 and Fig. 3).
The regulator in valve sizes DN 15 to 25 can
also be installed in vertical pipes.
Installation conditions
−
Make sure that the regulator remains
freely accessible after the plant has been
completed.
−
Install a strainer upstream of the regula-
tor (see section 5.2).
−
The direction of flow must match the di
-
rection indicated by the arrow on the
body.
−
Connect external control lines at the side
of the main pipe (see Fig. 6)
−
Install the regulator free of stress.
Possible malfunction and damage due to ad-
verse weather conditions (temperature, hu-
midity).
−
Do not install the device outdoors or in
rooms prone to frost.
−
Protect the regulator against frost if it is
used to control freezing media.
−
Either heat the regulator or remove it from
the plant and completely drain the residual
medium.
NOTICE
!
M
V
∆
p
.
–±
+
M
–+
–+
V
.
∆
p
Type 46-7 and
Type 47-5 in the
return flow pipe
Type 47-1 in the
flow pipe
Fig. 4:
Sample application
