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Instruction Manual
D100380X012
Actuator Mounting
1. Refer to the appropriate actuator instruction manual to determine the desired actuator mounting style and
position. With the valve out of the line, mount the actuator on the valve per instructions in the actuator instruction
manual.
2. To determine the fully closed disk position, measure the distances between the valve face and the top and bottom
edges of the disk as shown in figure 2. The disk is at the fully closed position when the two measurements are equal.
Rotate the disk slightly if necessary to make the measurements equal.
3. Refer to figure 6 and locate the view that depicts the mounting style and position that is being used. In the
appropriate view on the right of figure 6, note the positions of the index marks on the end of the valve shaft and
actuator lever. For all positions and styles with 90‐degree disk rotation, the shaft index mark is to be aligned with
the appropriate lever index mark as shown in figure 6. This is also true for push‐down‐to‐open action with
60‐degree maximum disk rotation. However, for push‐down‐to‐close action with 60‐degree maximum disk
rotation, the appropriate lever index mark must be offset one or two spline teeth counterclockwise from the shaft
index mark.
Refer to the appropriate actuator instruction manual for instructions covering attaching the lever and adjusting the
turnbuckle. For FISHTAIL disks, be certain that the direction of rotation will be such that the tail of the disk (see figure
2) will rotate into the downstream side of the valve.
9500 Valve
February 2019
13
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