Emerson Fisher 8540, Instruction Manual

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Instruction Manual
D104709X012
8540 Valve
September 2021
19
Table 8. Recommended Bolt Torques for Actuator/Mounting Cap Screws and Nuts
VALVE SIZE, NPS
RECOMMENDED BOLT TORQUE
N
w
m lb
w
ft
CL150
3, 4, 6, and 8 88 65
10 and 12 135 100
CL300
3, 4, and 6 88 65
8 and 10 135 100
12 183 135
Note
To obtain proper shutoff, the closed position of the 8540 valves must be set with the disk parallel to the retaining ring. Do not use
the disk stop to set the actuator travel stops.
3. Adjust the actuator travel stop to limit the open and closed positions of the valve disk. (If necessary, refer to the
actuator instruction manual for more information about adjustments.) Do not use the disk stop as a actuator travel
stop as discussed in the
Caution above.
4. For actuators with adjustable turnbuckles, adjust the turnbuckle to bring the disk to the fully closed position at the
end of the actuator stroke. If necessary, refer to the appropriate actuator instruction manual for assistance.
5. If using a manual handwheel or handlever actuator, refer to the appropriate actuator instruction manual for
mounting positions and adjustments.
6. To determine the fully closed disk position (zero degrees of disk rotation), measure the distances between the
positions on the disk face as shown in figure 8. Use the actuator to rotate the disk while re‐checking the two
measurements. Repeat adjustment until the two measurements are equal.
Parts Ordering
When corresponding with your Emerson sales office about this equipment, always mention the valve serial number.
WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson should not, under any
circumstances, be used in any Fisher valve, because they may void your warranty, might adversely affect the performance
of the valve, and could cause personal injury and property damage.