Burkert Type 8694 - Manual (Page 39)

39
Installation
Control function B (CFB)
Process valve open in rest position (by spring force)
Actuator size ∅ 80, ∅ 100
∅ 125
P
ositioner
Pilot air outlet
2
2
2
1
2
2
2
1
Actuator
Upper pilot air port
Lower pilot air port
Dry area
Table 14: Pneumatic connection to actuator - CFB
"In rest position" means that the pilot valves of the positioner Type 8694 are isolated or not actuated.
8.4. Rotating the actuator module
The actuator module (positioner and actuator) can be rotated for straight seat valves and angle seat valves
belonging to series 2300, 2301 and 27xx only!
The position of the connections can be aligned steplessly by rotating the actuator module (positioner and actuator)
through 360°.
Only the entire actuator module can be rotated. The positioner 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 pneumatic 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).
NOTE!
Damage to the seat seal or the seat contour!
• When removing the actuator module, ensure that the valve is in open position.
→
Control function A: Open process valve.
English
Type 8694