Rotating The Actuator Module - Burkert 8691 Manuel D'utilisation

Type 8691
Installation
Control function i (CFi)
Process valve closed in rest position
Control head Pilot air outlet
Actuator
Upper pilot air port
Lower pilot air port
Process valve open in rest position
Control head Pilot air outlet
Actuator
Upper pilot air port
Lower pilot air port
Table 2: Pneumatic connection to actuator CFI
"In rest position" means that the pilot valves of the control head Type 8691 are isolated or not actuated.
If the ambient air is humid, a hose can be connected between pilot air outlet 2
unconnected pilot air port of the actuator for control function A or control function B. As a result, the spring
chamber of the actuator is supplied with dry air from the vent duct of the control head.
7.4. rotating the actuator module
The actuator module (control head 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 (control head and actuator)
through 360°.
Only the entire actuator module can be rotated. The control head 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).
→
Control function A: Open process valve.
2 2
2 1
2 2
2 1
of the control head and the
2
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