Quarter-Turn Gearboxes
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PT Series
Manufacturer: LIMITORQUE
Limitorque’s PT series worm gear operators not only makes it easy to manually operate quarter-turn valves, it also makes it easy to convert to motorized service.
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HBC Series
Manufacturer: LIMITORQUE
Limitorque’s HBC series worm gear operators excel in diverse applications. Their dependability has been proven in the most demanding situations, ranging from nuclear power plants, to large damper operations, to power plant flue gas desulphurization.
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M Series
Manufacturer: Mastergear
The cast iron construction and the rugged design of the Mastergear “M” series range of manual valve actuators has been engineered to meet the arduous requirements demanded of industrial environments. Through corrosion resistant treatment of bare metal surfaces, a grey epoxy paint finish and the use of lip seals.
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MF Series
Manufacturer: Mastergear
The MF series of ¼ turn actuators provide a second stage gear reduction for multi turn actuator drives to meet torques and operating times required by the industry. Applications for buried service of remote drive can also be utilizing the input flange feature.
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Acro-gears Worm Series
Manufacturer: ACRODYNE
This series is suitable for use with quarter turn applications.
Acro-gears Declutch Series
Manufacturer: ACRODYNE
This series is specifically developed for use with pneumatic and hydraulic actuators providing a positive mechanical means of manual operation.
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