9.
Setting the end stops for part-turn actuators on ball valves
For actuators on butterfly valves refer to page 12, section 8.
The settings can only be performed if the valve has not yet been mounted in
a pipeline.
.
If part-turn actuators are supplied without a valve:
hex. bolts (03, figure F) are not tightened.
.
If part-turn actuators are supplied with a valve:
hex. bolts (03, figure F) are tightened.
End stops and limit switching should have already been
set and only have to be checked.
9.1
Setting end stop OPEN
.
If hex. bolts (03, figure F) are tightened:
loosen by approx. 3 turns.
.
Turn handwheel counterclockwise (opening direction), until valve is open
(end position OPEN).
Check whether end stop (10) has rotated, otherwise turn end stop (10)
counterclockwise up to the stop.
.
In case end position OPEN has been passed:
reverse several turns at the handwheel and approach end position OPEN
again.
.
Turn end stop (10) by 1/8 turn clockwise.
(Protective cap (16) must not be loosened in the process).
The end stops are designed for the protection of the valve.
They have to be set as to ensure that they are not used
during normal operation.
.
Fasten hex. bolts (03) crosswise with torque 18.4 ft lbs.
9.2
Setting end stop CLOSED
The swing angle has been set in the factory. Therefore, the end stop
CLOSED need not be set.
9.3
Setting limit switching OPEN
After setting the end stop OPEN, the limit switching for end position OPEN
can be set immediately (page 16, section 13.12.). For this, the switch
compartment has to be opened and the indicator disc has to be removed
(refer to page 15, section 11.).
Part-turn actuators SG 05.1 – SG 12.1 / SGR 05.1 – SGR 12.1
Operation instructions
AUMA NORM
16
10
03
Figure F: Setting end stop OPEN
