GF DIASTAR DN65 Bedienungsanleitung Seite 34

Accessories
2. Maximum Flow Adjustment
(DN65-DN150, FC, FO, DA)
 Put valve in position <closed> using the control medium.

Remove locknut with a 41 mm wrench and turn the threaded bush with a 19 mm
wrench in a clockwise direction until the desired position is reached.
The stroke limit setting can be determined by comparing the position of the threaded
bush to the basic setting.

Tighten locknut.
3. Emergency Manual Override (DN65–DN80)
The adjustment is similar to that for the stroke limiter. By turning the threaded bush in a
clockwise direction, the valve is closed (FO/DA); by turning it in a counter clockwise
direction, the valve is opened (FC / DA).
For automatic operation, the valve must be reset according to the instructions in Section
7.1..
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Instruction manual