Burkert 8691 Manuel D'utilisation page 23

Type 8691
Installation
3. install pneumatic connection between control head and actuator
Pilot air outlet 2
Pilot air outlet 2
Upper pilot air port
Lower pilot air port
Figure 15: Installation of the pneumatic connection, 20xx series
→
Screw the plug-in hose connectors onto the control head and the actuator.
→
Using the hoses supplied in the accessory kit, make the pneumatic connection between the control head and
actuator with the following "Table 1" or "Table 2".
noTe!
Damage or malfunction due to ingress of dirt and moisture.
▶ To comply with degree of protection IP65 / IP67, connect the pilot air outlet which is not required (on CFA
and CFB) to the free pilot air port of the actuator or seal with a plug.
Control function a (CFa)
Process valve closed in rest position (by spring force)
Control head Pilot air outlet
Actuator
Upper pilot air port
Lower pilot air port
Control function B (CFB)
Process valve open in rest position (by spring force)
Control head Pilot air outlet
Actuator
Upper pilot air port
Lower pilot air port
Table 1: Pneumatic connection to actuator CFA and CFB
1
2
2
2
2
2 1
or
2
2 1
or
english
Example
∅ 80, CFA
2 2
2 1
2 2
2 1
23