
Instruction Manual
D102013X012
8560 Valve
June 2017
17
1. Remove the retainer ring (key 2, figure 10):
For valves with press‐fit retainer rings:
D
Place the valve on blocks with the seal retainer facing down. (Note: Position blocks so they do not restrict the
retainer ring removal.)
D
Rotate the disc to the open position as shown in figure 9.
D
Locate one of the knock‐out points machined on the retainer ring. Using a hammer and flat end punch on the
knock‐out point, pop out the retainer ring from the valve body.
CAUTION
When popping out the retainer ring, be very careful to hit only the knock‐out points. Hitting anywhere else can cause
non‐repairable damage to the t‐slot area.
D
Clean all sealing surfaces and parts before re‐assembly.
For valves with screwed retainer rings
D
Place the valve on blocks with the seal retainer facing up.
D
Remove the retainer ring screws (key 17). If necessary, use two of the retainer screws in the tapped holes in the
retainer ring (key 2, figure 14) to jack the retainer ring loose from the valve body surface.
2. Remove the seal ring from the valve body seal ring slot.
For valves with PTFE seal rings,
remove the spring (key 5) as it may be necessary to re‐install the spring into the new
PTFE seal ring.
For valves with metal seals,
remove the gasket (key 16) from the valve body surface, and discard it as replacement is
recommended.
3. If it is necessary to replace the disc, drive shaft, and the bearings, refer to that section below before proceeding with
the assembly procedures for the seal ring and retainer. The seal ring could be damaged if it is in place while
removing the disc.
Assembly
Place the valve on blocks with the seal retainer facing up. If the replacement disc, shaft, and bearings have not been
installed in the valve body, go to the proper assembly procedures to install them.
CAUTION
Do not install the seal ring without the disc being in place. The seal ring could be damaged while installing the disc.
WARNING
Do not lubricate parts when used in oxygen service, or where the lubrication is incompatible with the process media. Any
use of lubricant can lead to the sudden explosion of media due to the oil/oxygen mixture, causing personal injury or
property damage.