Installation, Operation and Maintenance Manual
󲷇H-A071-E-3󲷈Compact Ball Valve Type27 Pneumatic Actuated Type AR 13-50mm (”-2”)
21
17. Actuator removal procedure
- When removing the actuator, be sure to use the "Base plate
removing jig". (Failure to so may cause, damage the Base
plate.)
- When removing the base plate from the valve, avoid applying
excessive force to a base plate removing jig to force the claw
to open. (It may cause the claw to be broken.)
- Avoid excessive repetition of attaching and removing the base
plate. (It may cause the claws of the base plate to have fatigue
fracture.)
- A single-action type has a metal joint (shaft adapter) between
the valve and actuator. Be careful of the shaft adapter's
jumping out and fall when removing the base plate from the
valve.
- Be careful not to apply excessive load to the pipe and valve
when attaching and removing the base plate.
Base plate removing jig󲼅Optional items󲼆
󲼙
Removal
Procedure
1) Completely eliminate pressure in the pipe.
2) Close the master valve for operation air, and release air from
the actuator.
3) Remove the air pipe.
4) Put the tip of the base plate removing jig at the center of the
claw on one side of the base plate. (Refer to Fig. 17-1.)
5) Move the removing jig in a way that it pushes the claw of the
base plate upward with the side of the valve as a fulcrum to
release the hooking with the main body of the valve. (Refer to
Fig. 17-2.)
6) For the other claw, perform the steps 4) to 5) to release the hooking
with the main body of the valve.
7) When the hooking of the both claws is released, lift the actuator
vertically to disconnect from the valve. (Refer to Fig. 17-3.)
󲼙
Attachment
Procedure
1) Confirm that the opening display of the actuator and the directions of
the valve stem and shaft adapter are correct.
2) Check the fitting position of the top flange of the valve and the base
plate.
3) Push the base plate onto the valve until its claws firmly catch the top
flange while checking visually.
Necessary items
Fig. 17-2
Push up
Fulcrum
Shaft
adapte
r
Fig. 17-3
Shaft
adapte
r
Ca󲘢󲘡i󲘜󲘛
Fig. 17-1
Base plate
Base plate
removing jig
Ca󲘢󲘡i󲘜󲘛
Ca󲘢󲘡i󲘜󲘛
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