8580 Valve
Instruction Manual
March 2010
14
Figure 6. Taper / Expansion Pin Installation
TAPER/EXPANSION PIN LOCATION
INSTALL THE PINS FROM THIS SIDE OF THE DISK.
1
“T” STAMPED ON ACTUATOR
END OF DISK
W9486
1
Table 8. Recommended Actuator-Mounting Bolt Torque
VALVE SIZE TORQUE
DN NPS
NSm lbfSft.
50, 80, 100,
and 150
2, 3, 4, and 6 120 88
200, 250, and
300
8, 10, and 12 250 185
D For a soft seal, if the spring (key 5) was
disassembled, hook the spring ends together. Work
the spring into the recess in the seal ring (key 4).
Place the seal ring assembly onto the disk. Set the
retainer onto the seal, making sure proper alignment
between the seal and retainer has been achieved.
D For the metal seal ring assembly, place the
seal ring assembly onto the disk. Set the retainer
onto the seal.
D For the flow ring construction, place the
gasket (key 41) onto the valve body. Set the retainer
onto the gasket.
7. Attach the seal retainer (key 2) and the retainer
clips (key 13) to the valve body and secure with the
machine screws (key 14).
8. Insert a packing box ring (key 23) into the
packing box.
9. For standard packing, install the packing
according to the appropriate instructions presented
in step 5 of the Replacing Packing section on
page 10 of this manual.
For ENVIRO-SEAL packing, install the new packing
system components as described in the
ENVIRO-SEAL Packing System for Rotary Valves
Instruction Manual (D101643X012).
10. Install the anti-blowout ring (key 40) in the
groove in the drive shaft.
11. Rotate the disk to the approximate closed
position.
12. Mount and adjust the actuator per the following
Actuator Mounting section on page 15 of this
manual.
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