Rotating The Actuator Module - Burkert 8690 Manuel D'utilisation

6.4. rotating the actuator Module
The actuator module (Pneumatic Control Unit and actuator)
can be rotated for straight seat valves and angle seat valves
only!
The position of the connections can be aligned steplessly by rotating
the actuator module (Pneumatic Control Unit and actuator) through
360°.
Only the entire actuator module can be rotated. The Pneu-
matic Control Unit cannot be rotated contrary to the actuator.
The process valve must be in the open position for alignment
of the actuator module!
Danger!
risk of injury from high pressure!
• Before dismounting lines and valves, turn off the pressure and
vent the lines.
procedure:
→
Clamp valve body in a holding device (only required if the process
valve has not yet been installed).
→
Control function A: Open process valve.
18
english
Type 8690
Installation
Key contour
Nipple
Series 21xx
Fig. 14:

Rotating the actuator module

→
Using a suitable open-end wrench, counter the wrench flat on
the pipe.
→
Series 21xx actuator size >
Fit special key exactly in the key contour on the underside of
2)
the actuator.
→
Series 21xx actuator size ∅ 50 and series 20xx:
Place suitable open-end wrench on the hexagon of the actuator.
The special key (665702) is available from your Bürkert sales
2)
office.
Actuator
module
Hexagon
Nipple
Series 20xx
∅ 50: