Instruction Manual
D104223X012
A11 Valve
August 2017
18
4. Install the retaining ring and align the screw holes in the retaining ring with the holes in the valve body. Install the
first retaining ring screw through the punched hole in the ring gasket. Install the other ring screws by pushing the
screws through the graphite gasket and threading them into the screw holes in the valve body.
5. Tighten the retaining ring screws just enough to eliminate vertical movement of the retaining ring. Do not tighten
the retaining ring screws.
WARNING
Avoid personal injury or property damage caused by the impact of a falling or tipping large valve. Large valves must be
properly supported during maintenance.
6. To complete this step, stand the valve up. Support the valve securely using methods appropriate for the valve size.
CAUTION
If a vise or other clamps are being used, be sure damage is not done to the flange gasket sealing area of the valve body.
7. Manually rotate the valve shaft to turn the disk clockwise to meet the seal.
8. Tap the disk with a rubber mallet to drive it against the internal travel stop. When the disk makes contact with the
stop, manually rotate the disk counter‐clockwise back out of the seal to a 90
_
open position. Repeat steps 7 and 8
three times.
9. The final seating of the retaining ring screws can be done. For the screw torque values, refer to table 4. The seal is
now fully installed and the valve may be closed for installation or storage.
Valve Shaft/Disk Pin Unit Maintenance
Valve Shaft/Disk Pin Unit Removal
1. Rotate the disk (key 3) 180
_
counterclockwise from the full closed position.
2. Place the open valve horizontally on a suitable work surface with the retaining ring (key 2) facing upward. Be sure to
properly support the valve with blocks while the shaft is being removed.
Note
The disk must be removed from the waterway side of the valve body, which is the side opposite the T‐slot area. Support the valve
and disk so the disk can be easily removed from the valve when the shaft is removed.
3. Use a pin extractor to remove the disk pins (key 6). Select the proper pin extractor tip with screws of proper thread
size to match the thread size in the disk pins.
4. Screw the pin extractor tip into the pin as far as possible. With an upward, straight sliding motion, extract the pin.
Repeat the same procedure for the other pins.
A threaded rod with an appropriate spacer and nut can also be used as an extractor tool. If using a threaded rod,
choose a rod with threads that fit the inside threads of the pins. The rod should extend several inches above the disk
when screwed into a pin.
5. After screwing the rod into the pin, slide the spacer over the rod and pin. Thread the nut onto the rod and tighten.
As the nut is tightened, it will drive the spacer against the disk and the increasing pressure will draw the pin from the
disk.
6. Loosen the packing nuts (key 16).