Table of Contents
Advertisement
16 Inspection/maintenance
16.5 Assembling the spare parts
If a spare part must be replaced, it is recommended to
●
likewise replace all spare parts included in the wearing
parts kit.
10
7
3
8
6
2
4
1
4
1. Remove the actuator (see chapter "Removing the actuator
from the ball valve body").
2. Bend the tab of the lock washer 7.
3. Unscrew the spindle nut 10.
4. Remove the spring washers (2 x) 3 and the stainless steel
sleeve 11.
5. Unscrew the nuts 14 from the flange connecting bolts.
6. Remove the lock washers, pull out the boltss, and carefully
remove the flange 2 from the ball valve body 1.
7. Remove the flange seals 5 and seat seals 4 from the ball
valve body.
8. Turn the ball 13 with the spindle 12 to the "closed" posi-
tion and remove the ball from the ball valve body with a
slight rotating movement.
9. Press spindle 12 carefully from outside into ball valve
body and remove it.
10. Remove the V-ring spindle packings 8 (2x) and 9.
11. Replace the conical spindle seal 6 and reinsert the spindle
into the ball valve body.
12. Place the new V-ring spindle packings 8 (2x) and 9, the
stainless steel sleeve 11, the spring washers 3 and the
lock washer 7 on the spindle and hand-tighten the spindle
nut 10.
13. Bend the tab of lock washer 7 upwards.
14. Turn the spindle 12 so that the ball actuator runs along-
side the direction of piping, and push the ball 13 onto the
ball actuator with a slight rotating movement.
15. Insert the seat seals 4 and flange seals 5 from both sides.
16. Position the flange 2 on both sides, push the flange con-
necting bolts through the flange holes, attach the lock
washers and tighten the nuts 14 evenly (diagonally in sev-
eral cycles).
17. Mount the actuator (see chapter "Actuator mounting on
the ball valve body").
GEMÜ B44
NOTICE
11
9
12
13
14
2
16.6 Installing the ball valve
▶ Installation is performed in reverse order as for disas-
sembly (see chapter "Ball valve disassembly").
16.7 Actuator mounting on the ball valve body
4
5
1. Ensure that the groove at the square 3 of the ball valve is
in correct alignment with the marking 1 of the position in-
dicator, if necessary rotate the square to the correct posi-
tion.
2. Place the actuator 2 on the square and align, if necessary.
3. Hand-tighten the screws 6 with their washers 5.
4. Diagonally hand-tighten the screws 6 evenly.
5. Connect the control medium (see chapter "Connecting the
control medium").
Tightening torques for upper spindle nut item 10
Nominal size
DN8
DN10
DN15
DN20
DN25
DN32
DN40
DN50
DN65
DN80
DN100
30 / 34
NOTICE
Torque
9
9
9
9
15
15
25
25
30
30
40
www.gemu-group.com
1
2
3
4
5
6
Advertisement
Table of Contents
