Emerson Fisher EHD Instruction Manual page 25

Instruction Manual
D100394X012
Figure 12. Installing the C‐seal Plug Seal Using the Installation Tool
INSTALLATION
TOOL
C‐seal
METAL
PLUG
SEAL
FLOW DOWN
NOTE:
PRESS INSTALLATION TOOL OVER VALVE PLUG UNTIL THE TOOL CONTACTS THE HORIZONTAL REFERENCE SURFACE OF THE VALVE PLUG.
A6778
Figure 13. Stake the Threads of the C‐seal Retainer
DEFORM THREAD TO
STAKE C‐seal RETAINER
PISTON
RING
RETAINER
C‐seal
METAL
PLUG
SEAL
A6779
6. Select an appropriate tool such as a punch and place the tip of the tool into the hole with the body of the tool held
tangent to the outside diameter of the retainer. Strike the tool with a hammer to rotate the retainer and free it from
the valve plug. Remove the retainer from the plug.
7. Use an appropriate tool such as a flat‐blade screwdriver to pry the C‐seal plug seal off the plug. Use caution to avoid
scratches or other damage to the sealing surfaces where the C‐seal plug seal makes contact with the valve plug
(figure 14).
8. Inspect the lower seating surface where the valve plug contacts the seat ring for wear or damage which would
prevent proper operation of the valve. Also, inspect the upper seating surface inside the cage where the C‐seal plug
VALVE
PLUG
HORIZONTAL
REFERENCE
SURFACE
VALVE
PLUG
FLOW DOWN
EH (1-1/2x1 through 8x6)
July 2017
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