FIELD: mechanics.
SUBSTANCE: present invention relates to an actuator (10) for a valve (11) with a means (17) of action, an actuator (16) that moves this means (17) of action, depending on controlled or control parameters, between two end positions, and with a manually actuated switch, with which this means (17) of action can be moved to one of both end positions, regardless of the regulated or control parameters. The switch is an eccentric (29), which is activated by means of a manual action element (23). The eccentric has a rounded top, which in the mounting position of this eccentric jumps into the corresponding recess.
EFFECT: simple and convenient drive switching is provided.
16 cl, 8 dwg
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