8. Setting the end stops for part-turn actuators on butterfly valves
For actuators on ball valves refer to page 13, section 9.
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 E) are not tightened.
.
If part-turn actuators are supplied with a valve:
hex. bolts (03, figure E) are tightened.
End stops and limit switching should have already been
set and only have to be checked.
8.1 Setting end stop CLOSED
.
If hex. bolts (03, figure E) are tightened:
loosen by approx. 3 turns.
.
Turn handwheel clockwise (closing direction), until valve is closed
(end position CLOSED).
Check whether end stop (10) has rotated, otherwise turn end stop (10)
clockwise up to the stop.
.
In case end position CLOSED has been passed:
reverse several turns at the handwheel and approach end position again.
.
Turn end stop (10) by 1/8 turn counterclockwise
(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.
8.2 Setting end stop OPEN The swing angle has been set in the factory. Therefore, the end stop OPEN
need not be set.
8.3 Setting limit switching
CLOSED
After setting the end stop CLOSED, the limit switching for end position
CLOSED 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
AUMA NORM Operation instructions
16
10
03
Figure E: Setting end stop CLOSED
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