Flowserve Valtek FlowTop V726 User Instructions page 55

Valtek FlowTop
Reassembly of the manual actuator:
1. Screw in the lock nut (5.2).
The thread protrusion should be as a
NOTICE
minimum 1 x thread diameter.
2. Press the stem-plug-unit into the seat by hand.
3. Mount the manual actuator onto the bonnet and tight-
en the yoke lock nut (5.10) clockwise - see section 14:
Required Torques.
Align the yoke road parallel to the pipe
NOTICE
axis.
4. Move the actuator to the open position, if not already
in that position.
5. Screw the lock nut (5.2) and actuator coupling (5.1)
onto the valve stem and adjust the distance between
the valve coupling and actuator by adjusting the stroke
lenght.
Size
15 - 50 1/2" - 2"
65 - 100 3" + 4"
125 - 150 6"
200 - 300 8" - 12"
Table 37: Stroke adjustment length
6. Secure the lock nut (5.2) and adjust the valve coupling
until the holes are in line with the yoke roads.
7. Turn the Handwheel of the manual actuator clockwise
to the close position.
8. Screw the cap screws (5.5) clockwise to connect the
stem with the manual drive.
9. Run through a valve lift and check the function and all
settings.
FCD VLEEIMFTOP-03 (EN/A4) June 2023
Stroke
20 mm 0.787 in.
+ 0,5 + 0.02
40 mm 1.574 in.
+ 0,5 + 0.02
60 mm 2.362 in.
+ 0,8 + 0.03
80 mm 3.149 in.
+ 0,8 + 0.03
Figure 40: Remove the manual actuator
5.1
5.2
Figure 41: Remove the coupling parts
Item
Part
EU WW
5.1 345 Lower coupling
5.2 113 Lock nut
Table 38: Coupling parts identification
5.10
5.5
Item
Part
EU WW
5.5 240 Cap screw
5.10 76 Yoke lock nut
flowserve.com
55