Make sure that pipelines are clean
and free of residual media (when in-
stalling the unit with ball valves /
ball valve combinations).
Switch the plant off and secure it
against unauthorised switching back
on.
Installing the unit
Mount the unit on a ball valve, butterfly
valve or ball valve combination
Valves supplied by the manufacturer
have a drive coupling that fits the actu-
ator. For other valves, the connection
must comply with the requirements of
DIN EN ISO 5211, and the actuator
must be equipped with a suitable
adapter.
For more information about available
and possible valves, please contact
the manufacturer.
Valves must be correctly mounted.
When you install the actuator on a
valve, ensure that the position of the
ball / butterfly valve or similar device
and the position of the actuator agree.
When the valve is open, the notch in
the actuator drive shaft must be in the
90° or 270° position (or 0° or 180° if
mounted transversely) (there are de-
gree markings on the cover of the actu-
ator).
Regarding the position indicator of an
actuator for installation on a multi-way
valve or a valve combination, please
contact the manufacturer.
The connection between the actuator
and the valve should be either direct or
by means of a special actuator connec-
tion. There must always be a drive
coupling on a valve. The mountings for
an actuator and an actuator coupling on
a valve are not always identical.
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