Installation With Butt Weld Spigots - GEM B22 Operating Instructions Manual

10.2 Installation with butt weld spigots

▶ Adhere to good welding practices!
1. Installation variant:
Undo one bolt, remove the other bolts and swivel the
centre section aside instead of removing it.
R
2. Centre and fix butt weld spigots S1 right and left on piping
R.
KM
18
3. Fully unscrew the nuts 19.
4. Remove the washers 20.
5. Pull out the bolts 18.
6. Remove the centre section KM.
7. Weld butt weld spigots S1 right and left to the piping R.
8. Allow the butt weld spigots to cool down.
9. Reassemble the ball valve.
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NOTICE
S1 R
19
20
19a
19d
10. Tighten nuts 19a - 19d diagonally, holding them with a
wrench.
Nominal size
DN8
DN10
DN15
DN20
DN25
DN32
DN40
DN50
DN65
DN80
DN100
49 / 60
10 Installation in piping
19c
19b
Torque
6 – 8
6 – 8
6 – 8
6 – 8
6 – 8
13 – 18
13 – 18
13 – 18
25 – 36
43 – 62
43 – 62
GEMÜ B22