V250 Valve
Instruction Manual
Form 5206
April 2004
14
Figure 9. Proper Alignment for Centering the Ball
FG51287-A
A3142/IL
AXIS OF DRIVE SHAFT (KEY 6) AND FOLLOWER SHAFT (KEY 7)
A—B = 0.127 mm (0.005 INCHES) MAX
the seal carrier and the valve is broken. Then,
remove one bushing spacer shim and secure the
spacer and seal carrier to the valve with the hex nuts
(key 8). Be careful not to damage the seal (key 16)
or O-ring (key 23) during replacement of the seal
carrier.
12. Install the seal protector ring (key 14, figure 5)
or the flow ring (key 14, figure 6) and all remaining
parts by following the appropriate procedures
presented in the Ball Seal and Flow Ring
Maintenance section.
13. Mount the actuator to the valve while referring to
the actuator mounting section of this instruction
manual and to the appropriate actuator instruction
manual. If appropriate, replace the bonding strap
assembly and the clamp (key 41 and 40, figure 4).
14. Install the valve into the pipeline by referring to
the Installation section of this instruction manual.
Actuator Mounting
Use the appropriate actuator instruction manual and
figure 10 of this instruction manual when changing
actuator styles and positions. The actuator may be
either right- or left-hand mounted. Figure 10 shows
the correct lever/shaft orientation for both left-hand
mounting and right-hand mounting configurations.
Travel Adjustment
Actuator travel adjustment can be performed with
the valve either in or out of the pipeline. Key
numbers referenced in the following procedures are
shown in figure 11 for single seal and flow ring
constructions and in figure 12 for dual seal
constructions.
D
For valve assemblies in the pipeline:
1. Rotate the ball (key 2) to either the open or
closed position as indicated by the travel indicator
scale (key 37) on the outboard end of the valve.
2. Adjust the actuator as described in the
appropriate actuator instruction manual until the
arrow stamped on the end of the follower shaft (key
7) is fully aligned with the open or closed position on
he travel indicator scale.
D
For valve assemblies out of the pipeline,
proceed as follows:
1. Rotate the ball to the fully open position. The fully
open position is achieved when the inside surface of
the ball bore (key 2) is completely square with the
line flange gasket surface of the seal protector ring
(key 14) or flow ring (key 14).
2. Adjust the actuator as described in the
appropriate actuator instruction manual until the
inside surface of the ball bore is at right angles to the
line flange gasket surface of the seal protector ring
or flow ring.
3. Adjust the travel indicator scale (key 37) until the
arrow stamped on the end of the follower shaft (key
7) is fully aligned with the open position.