Valtek FlowTop General Service Valve FCD VLENIM8610A4 11/18
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After these requirements are confirmed the control valve can be maintained and repaired.
Description of the Procedure
1. Disconnect the air supply from the actuator and / or
assembled accessories.
2. Disassemble the positioner from the valve as neces-
sary (See Figure 7: Remove the positioner).
3. Move the actuator to the open (retracted) position.
4. Turn the cap screws (240) counter clockwise to loosen
(See Figure 8: Remove the actuator).
5. Turn the lock nut (113) clockwise to loosen. Keep ac-
tuator coupling (345) from turning by securing with a
wrench.
6. Turn the yoke lock nut (76) counter clockwise to loos-
en.
7. Lift off and store the actuator safely.
8. Place the valve body assembly on a table for disas-
sembly.
Disassembly instructions of the valve body
assembly.
1. Turn the lock nut (113) counter clockwise to loosen.
2. Turn the packing follower (80) counter clockwise to
loosen.
3. Remove the Belleville springs (138) (Option, see Parts
List - Packing Details).
4. Remove the upper stem guide (87).
5. Turn the bonnet nuts (114) counter clockwise to loosen.
6. Place the Ring Nut Tool (See Section 16: Special Tools)
on the stem (51) then slowly turn the bonnet assembly
(40).
WARNING
Crushing hazard ! Lifting
the bonnet and plug from
the control valve involves personal physical risk by
falling parts.
Please exercise caution.
Positioner
O-ring
Socket screw
Figure 7: Remove the positioner
345
240
76
249
113
Figure 8: Remove the actuator
Item
Part
Item
Part
76
Yoke Lock Nut
249
Actuator Coupling
113
Lock Nut
345
Valve Coupling
240
Socket Head Srew (2x)
Table 10: Coupling parts identification
