Bürkert 8691, Быстрый старт

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14
Installation
Ensure that the pneumatic connections of the control head
and those of the valve actuator are situated preferably verti-
cally one above the other (see “Fig. 8”).
note!
too high torque when screwing in the fastening screw does
not ensure protection class ip65 / ip67!
• The fastening screws may be tightened to a maximum torque of
0.5 Nm only.
→
Attach the control head to the actuator using the two side fas-
tening screws. In doing so, tighten the fastening screws hand-
tight only (maximum torque: 0.5 Nm).
Pilot air outlet 2
1
Pilot air outlet 2
2
Upper pilot air port
Lower pilot air port
Example
∅
80, CFA
Fig. 8: Installing 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 pneu-
matic connection between the control head and actuator with
the “Tab. 1: Pneumatic connection to actuator”.
note!
damage or malfunction due to ingress of dirt and moisture!
• To comply with protection class IP65 / IP67, connect the pilot
air outlet (only for CFA or CFB) which is not required to the free
pilot air port of the actuator or seal with a plug.
“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
2
of the control head and the
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.
english
Type 8691