FIELD: machine building.
SUBSTANCE: invention relates to machine building, particularly to production of control valves and accessories. Pipeline control valve state indicator comprises casing with slot for control valve state indicator finger to move along. Aforesaid casing is fastened at the post that doubles as cover. Aforesaid finger is arranged on the nut that travels along the screw. The latter is coupled with the sprocket interacting with fingers fitted on runner that controls the spindle. Aforesaid screw and sprocket are replaceable.
EFFECT: compact indicator for large-diametre control valves.
2 cl, 4 dwg
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