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Reactivate all safety and protective
G
devices.
Check the tension of the body and piston
G
bolts, retighten the bolts 15 diagonally if
necessary (see table).
Torque [Nm]
Body bolts
Type
Nominal size
DN 10 / 15
DN 20 / 25
DN 32 / 40
DN 50
DN 65
DN 80
DN 100
* = threaded rod
Torque [Nm]
Piston bolts
Type
Nominal size
DN 10 /15
DN 20 / 25
DN 32 / 40
DN 50
DN 65
DN 80
DN 100
N082, N182
Bolts
Nm
M6 x 70
9
M8 x 90
12
M10 x 120
15
M12 x 180
29
M12 x 220
29
M12 x 250
M12 x 40
29
M12 x 70
M12 x 345*
M12 x 80
29
M12 x 60
Bolts
Nm
M8 x 25
6
M10 x 25
10
M14 x 30
15
M14 x 30
15
M20 x 80
25
M20 x 80
25
M20 x 80
25
11.2
Setting the working pressure
1. Unscrew the cap 14 from the valve
bonnet 2.
2. Loosen the lock nut 10.
3. Turn the set screw 11 to the desired
position using a screwdriver / Allen key:
Turn the set screw
clockwise:
Turn the set screw
anticlockwise:
4. Observe the setting range.
Type
GEMÜ N182
GEMÜ N082
5. Secure the setting with lock nut 10.
GEMÜ 082 and GEMÜ 182: The
working pressure can be read off
the integrated pressure gauge 21.
28 / 36
The working
pressure will
increase
The working
pressure will
decrease
Nominal
Setting range [bar]
size
DN 10 - 50
0.5 - 9
DN 65 - 80
0.5 - 5
DN 100
1 - 3
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