18
EB 8140 EN
Mounting and start-up
5 Mounting and start-up
The pneumatic control valve is delivered
ready for use.
5.1 Installing the valve into the
pipeline
5.1.1 Mounting position
The control valve may be installed in any po-
sition. We recommend installing it in a hori-
zontal pipeline with the actuator pointing
upwards.
Î
Choose a place of installation that allows
you to freely access the control valve
even after the entire plant has been com-
pleted.
Î
Install the valve in horizontal pipelines.
Î
During installation, observe the flow di
-
rection through the valve. The arrow on
the valve indicates the direction of flow.
Î
Observe the permissible ambient tem-
peratures (see section 3.2).
5.1.2 Installing the valve
1. Close the shut-off valve in the pipeline
while the valve is being installed.
2. Remove the protective caps from the
valve ports before installing the valve.
3. Install the valve into the pipeline. Ob-
serve the flow direction through the
valve. The arrow on the valve indicates
the direction of flow.
4. Install the valve free of stress and with the
least amount of vibrations as possible.
5.
Depending on the field of application,
allow the valve to cool down or heat up
to reach ambient temperature before
start up.
6. Slowly open the shut-off valve in the
pipeline after the valve has been in-
stalled.
Risk of valve damage due to a sudden pres
-
sure increase and resulting high flow veloci
-
ties.
Slowly open the shut-off valve in the pipeline
during start-up.
5.2 Connecting the signal pres-
sure
Signal pressure connection and venting are
designed as boreholes with a G ¼ female
thread.
The venting hole in valves up to DN 50 is fit
-
ted with a replaceable filter (13.1) with or
-
der no. 0550-0213. This filter can be re
-
moved by first unscrewing the vent plug (13).
The signal pressure connection on valves in
DN 15 to 50 also allows an adapter plate to
be attached that complies with VDI/
VDE 3845 for mounting a solenoid valve.
Î
Turn the actuator as required to connect
the signal pressure line.
Î
Use the customary fittings for metal or
copper tubing or plastic hoses.
NOTICE
!
