Instruction Manual
D101957X012
V150 and V300 Valves
February 2011
17
Figure 9. Determining the Ball Position
OPEN VALVE POSITION
CLOSED VALVE POSITION
A6065
FLOW
VALVE BODY
ROTATION
SEAL RETAINER
OR FLANGE FACE
90_
However, when changing the valve from right to left‐hand mounting, or vice versa, a different valve drive shaft and
ball are required. If a new shaft and ball are required, refer to the Bearing and Ball Maintenance section and the Parts
List in this manual.
Note
If necessary, it is possible to mount the valve in the left‐hand position with the ball rotating to the top of the valve. This will require
a non‐standard ball. The ball rotates clockwise to close. Refer to figure 8, or contact your Emerson Process Management sales
office for assistance.
Determining Open Position
The valve must be removed from the pipeline to check the position of the ball.
1. Rotate the ball to the open position. The open position of the ball is shown in figure 9.
2. Adjust the actuator linkage until the open position is obtained using the appropriate actuator instruction manual
procedures.
3. Stroke the valve to the closed position.
Make sure the actuator does not stroke the ball more than 90 degrees when rotating to the closed position (see figure
9).
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