Instruction Manual
D103298X012
Control-Disk Valve
May 2011
18
Actuator Mounting
With the valve body out of the line, mount the actuator on the valve body in accordance with the instructions in the
actuator instruction manual. Mount the actuator yoke to the valve body, and tighten the actuator‐mounting cap
screws and nuts (keys 35 and 36) to the appropriate torque from table 8.
Key numbers in this procedure are shown in figure 11 unless otherwise indicated.
1. Determine the actuator mounting style and position from figure 10.
CAUTION
Control‐Disk valve disk rotation is counterclockwise to open (when viewed from the actuator side of the valve body, see
figure 8). Rotating the disk (key 3) past the fully closed position will damage the seal ring (key 4). To prevent this damage,
use the following procedures:
D For actuators with adjustable travel stops, such as a Fisher 2052, 1051/1052 size 33, 1066 or 1066SR actuator, make
certain the actuator travel stop prevents the disk from rotating past the fully closed position.
D For actuators with an adjustable turnbuckle, such as the Fisher 1051/1052 size 40, 60, and 70, or 1061 actuator, the
turnbuckle must be adjusted so that the valve is closed when the diaphragm plate or piston is against the actuator
travel stop.
2. Adjust the actuator to bring the disk to the fully closed position at the end of the actuator stroke. To determine the
fully closed disk position, measure the distances between the disk face and the seal retainer face at the top and
bottom of the valve (X1 and X2) as shown in figure 8. Adjust the travel stops or turnbuckle to rotate the disk slightly
until the two measurements are within 0.8 mm (0.032 inch) of each other. Refer to the appropriate actuator
instruction manual for assistance.
Parts Ordering
When corresponding with your Emerson Process Management sales office about this equipment, always mention the
valve serial number. When ordering replacement parts, also specify the key number, part name, desired material,
using the Parts List table.
WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Process Management 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.
Note
Neither Emerson, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection, use, or
maintenance of any product. Responsibility for the selection, use, and maintenance of any product remains with the purchaser and
end user.
(78 pages)
(184 pages)
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