10. Put the valve in the „open" position again with the control medium (FC,DA) –
diaphragm is now centered
11. Screw housing nut with strap wrench tight, till...
... a uniform all-around gap of 0.5 up to 1 mm between valve body and bonnet is achie-
ved and
... the half-round position indicator is align with the friction lock
Tip
For valves with a built-in stroke limiter, we recommend to read just the valve.
6.5 Controlling the actuator
Depending on the mode of operation (FO, FC or DA), please connect solenoid valve accor-
ding to chapter "Modes of operation".
6.6 Control pressure diagrams
The following diagrams show the control pressure depending on the nominal pressure
PN.
DIASTAR SIX, FC with EPDM diaphragm
6
DN50
5
4
DN20 - 40
3
DN15
2
1
0
0
1
2
3
4
5
6
PN [bar]
7
8
9
10
39