Repairs
Removing the actuator from the valve housing:
Control function A:
Pressurize control air connection of the actuator with compressed air (5.5 bar) so that the disk is lifted
off the valve seat and is not damaged.
Control function B:
For control function B it is not necessary to apply compressed air for removal.
Remove actuator when valve is in open position.
Remove actuator from valve housing using open-end wrench (WAF 22).
Fig. 4: Angle seat valve, repairs
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