FIELD: valving. SUBSTANCE: rod of the valving member of the valve is provided with a handle of a manual drive having a step radiused hollow. The armature of a locking electromagnet has two rods. One of the rods is provided with L-shaped handle for interaction with the hollow made in the handle of the manual drive. The other rod is provided with ring collar and nut. A movable dielectric disk with a metallic bushing is freely interposed between the collar and nut. The bushing closes the contacts of the electromagnet that results in unlocking the handle of the manual drive. EFFECT: enhanced reliability. 2 dwg
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