Gear operators
Single-source solution for standard and customized gear operators for the toughest environments
Dynatorque™ valve accessories and Maxtorque™ high-performance worm gears
Our gear operator portfolio provides comprehensive solutions for a wide range of valve operations. These solutions are tailored for manual, automated, and specialty valve applications in diverse sectors, including energy, industrial, offshore, and subsea. Meticulously engineered for enhanced durability, precision, safety, and adaptability, these technologies deliver reliable performance even under the most demanding service conditions.
Dynatorque valve accessories
We provide a complete range of valve accessories engineered to excel in demanding industrial, energy, and process environments. Drawing on decades of proven performance and with manufacturing facilities in both hemispheres, we deliver durable products you can count on. Our comprehensive portfolio includes both quarter‑turn and multiturn gears, manual overrides, locking devices, partial‑stroke test devices, and mechanical accessories. Each component is designed for seamless integration with automated or manually operated valve systems, ensuring flexibility, compatibility, and robust operation in a wide array of applications.
Broadest range
Of gears and accessories
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Rapid customization
Across materials, dimensions, and mounting patterns
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Wide applicability
Ideal for severe, corrosive, buried, offshore, or safety-critical applications
Proven reliability
Backed by rigorous testing and quality control
Product portfolio
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Dynatorque DT
Quarter-turn severe-service gear operatorSuitable for any application that requires valve operation.
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Dynatorque D-Lock
Valve-locking deviceFor automated valves (pneumatic, hydraulic, or electric) requiring lockout capability to prevent valve rotation.
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Dynatorque D-Stop
Partial-stroke test deviceUsed on emergency shutdown valves while they flow process fluids and full-stroke valve testing isn’t practical.
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Dynatorque SD
Declutchable manual overrideEnables manual operation of an automated valve (pneumatic, hydraulic, or electric) in a contingency.
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Dynatorque SRD
Nondeclutchable manual overrideEnables manual operation of an automated valve (pneumatic, hydraulic, or electric) in a contingency.
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DYNATORQUE BG
Multiturn bevel-gear operator20 different frame and spur combinations.
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DYNATORQUE 360
Multiturn worm-gear operatorCommercial-grade, worm-geared, and made for multiple output turns.
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Industrial DYNATORQUE 90
Quarter-turn worm-gear operatorMeet marine, submerged, and high- and low-temperature requirements.
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DT, SRD, and BG Locking Devices
For quarter-turn, multiturn, and bevel-gear operatorsAvoid inadvertent handwheel rotation.
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Spur & Miter Gears
Part of our family of Dynatorque™ valve accessoriesUsed where a nonself-locking mechanical advantage or change in input drive orientation is required.
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Memory-Stop Device
DYNATORQUE accessoryFor when valves or dampers must be opened/closed to same position.
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Handwheels
Suited for Cameron products6- to 48-in sizes, many in recessed or flat versions.
Maxtorque worm gears
Our high-performance worm gears are engineered for manual, motorized, subsea, and specialty valve operations and demanding flow control applications. They are based on a proprietary, high-efficiency, double-enveloping worm gear and constructed from best-in-class materials. Autolock technology enables efficiencies approaching 70% while maintaining self-locking behavior, translating to less work for valve actuation, improved HSE profiles, and smaller actuators on motorized valves. The designs incorporate unique tooth forms to minimize microscopic stresses, low and adjustable backlash, and rugged construction for extreme environments, such as subsea, marine, and process control. Benefit from our robust solutions with fast operating times and high-torque capabilities.
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Reduced stresses
High contact ratio (6 to 13+ teeth) and unique tooth form to reduce microscopic stresses
Less effort
Up to 75% lower effort to operate, with reduced turns, handwheel size, and rim pull
Zero backlash
For process control and high-torque transmission
IP68-rated sealing
Protection from water and dust ingress
Product portfolio
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Maxtorque
High-performance worm gearsWorm-gear solutions that minimize effort.
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Declutchable and Manual Overrides
Save space and increase uptimeRequiring reduced number of turns, rim pull, and handwheel size for manual operation of automated valves.
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Subsea Gear Operators
Active and passive pressure compensationWithstand high pressures at deepwater depths with Maxtorque subsea worm gears.
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Rising Stem Applications
High-ratio, small-envelope, robustSee our MAXTORQUE products for rising stem applications.
