650
Control function 3
Double acting (DA):
Valve resting position: opened by spring
force. The valve is opened and closed by
activating the respective control medium
connectors (connector 2: open / connector
4: close).
Connector 2
Control function 1
Connector 2
Connector 4
Control function 2 + 3
Control function
Connectors
24
1 (NC) + -
2 (NO) - +
3 (DA) + +
+ = available / - = not available
(for connectors 2 / 4 see pictures above)
10.3 Connecting the control
medium
Important:
Connect the control medium lines
tension-free and without any bends
or knots!
Use appropriate connectors
according to the application.
Thread size of the control medium
connectors:
Diaphragm size 8: G1/8
Diaphragm size 10 - 100: G1/4
Control function Connectors
1
Normally closed
(NC)
2: Control medium (open)
2
Normally open
(NO)
4: Control medium (close)
3
Double acting
(DA)
2: Control medium (open)
4: Control medium (close)
For connectors 2 / 4 see pictures on page 11
10.4 Optical position indicator
Valve open Valve closed
38 / 52
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