Burkert Type 8694 - Manual (Page 14)

14
Installation
Pilot air outlet 2
1
Pilot air outlet 2
2
Upper pilot air port
Lower pilot air port
Fastening screws
max. 0.5 Nm
Example ∅ 80,
CFA
Fig. 7: Installing the pneumatic connection to actuator, series 26xx and
27xx
→
Make the pneumatic connection between the positioner and
actuator with the “Tab. 2: Pneumatic connection to actuator”.
“In rest position” means that the pilot valves of the positioner
Type 8694 are isolated or not actuated.
Control function A (CFA)
Process valve closed in rest position (by spring force)
Actuator size
∅ 80, ∅ 100
∅ 125
Positioner
Pilot air outlet
2
2
2
1
2
2
2
1
Actuator
Upper pilot air port
Lower pilot air port
Dry area
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
Tab. 2: Pneumatic connection to actuator
english
Type 8694