Instruction Manual
D102013X012
8560 Valve
June 2017
18
Figure 10. Disc Rotation Indication
RETAINER
RING
(KEY 2)
DISC STOP
INDICATES
APPROXIMATE
DISC POSITION
ACTUATOR END
OF VALVE SHAFT
SET ACTUATOR TRAVEL STOPS TO OBTAIN AN
EQUAL DISTANCE TO DISC SURFACE AS SHOWN.
DISC IN THE
CLOSED POSITION
DISC IN THE
OPEN POSITION
A6303‐2
1
NOTE:
1
1
TO OPEN
DISC ROTATION INDICATION
FOR NPS 2 THROUGH 12
2
2
2
LOCATION OF C MARKINGS, FOR NPS 2 ONLY
2
CAUTION
Do not rotate the disc past 90 degrees in the open direction. Rotating the disc past 90 degrees can damage the seal ring or
other component parts.
Note
PTFE, NOVEX, and Phoenix Ill seal rings used in other valve types are not interchangeable with seal rings used in the 8560 valve.
The 8560 seal rings are not interchangeable with seal rings in any other valve type. To order seal rings for this valve, provide the
serial number on the valve.
1. Installing PTFE seal rings:
a. The valve disc should be open while installing the seal ring. If not, rotate the disc to the open position as shown in
figure 10.
b. Hook the spring ends together, insert the spring (see figure 11) into the groove in the seal ring, and work the
spring into the recess in the PTFE seal ring.
c. Install the seal ring assembly into the slot in the valve body as shown in figure 11. Refer to Installing the retainer
ring steps below.
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