10
09665-07.2021-Gb
1
3
Pipe connection
2
Opening the shut-off valve:
a) Spindle 1: turn to the left (counter-clockwise) as far as it
will go.
—> Shut-off valve fully opened / service connection 2
closed (position A), Fig.
Opening the service connection (2)
b) Spindle 1: Turn 1/2 -1 rotation to the right.
—> Service connection 2 opened / shut-off valve opened
(position B), Fig.
Connection 3 is provided for safety devices and is not lockable.
1
3
Pipe connection
2
5 I Maintenance
Operating of the shut-off valves
Position A
Position B
INFO Before opening or closing the shut-off valve, loosen the valve spindle seal (Fig. left) by 1/4 turn.
After operating the shut-off valve, tighten the valve spindle seal carefully again (Fig. right).
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