Flowserve Valtek FlowTop V750 User Instructions page 14

Valtek FlowTop
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.
NOTICE
are basically two different constructions that primarily re-
late to the seat design. This also applies to the bonnets
and packing, which are all described individually due to
the variety of combinations.
14
FCD VLEEIM1485-04 (EN/A4) November 2022
Before you start working, find out which
valve variant you are dealing with. There
Figure 7: Remove the positioner
249
Figure 8: Remove the actuator
Item Part
76 Yoke Lock Nut
113 Lock Nut
240 Socket Head Srew (2x)
Table 10: Coupling parts identification
O-ring
Positioner
Socket
screw
240
345
76
113
Item Part
249 Actuator Coupling
345 Valve Coupling