FIELD: machine building.
SUBSTANCE: invention is related to the field of machine building and is intended for use as drive for pipeline stop and control valves. Manual drive of pipeline with indicator of stop valve position comprises body. Gear drive is installed in body. Master pinion of gear drive is connected to flywheel. Slave pinion is installed on tubular hub with cam end and lantern. Lantern interacts with pinion. Pinion is fixed on screw. Screw moves nut. Travel indicator is fixed on nut. Cartridge is installed on cover parallel to sleeve for spindle and is closed with transparent jacket. In cartridge there are two longitudinal slots arranged. Radial ledges of nut move in slots. Nut ledges are connected to circular indicator that embraces cartridge. Indicator has windows for reading of marking. Marking is applied onto external surface of cartridge.
EFFECT: increased viewing angle of stop element position indicator.
2 cl, 4 dwg
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