Pneumatic actuators use compressed air to automate valve movement in linear or rotary applications. Available in various configurations, they deliver consistent torque or thrust while offering reliable performance under demanding process conditions.
Rack and pinion actuators convert linear air pressure into rotary motion using a dual opposed piston design. Available in spring-return or double-acting configurations, they provide uniform torque across the stroke. Standard housings include anodized aluminum or stainless steel, with modular spring sets or air volumes tailored to specific torque needs.
Features such as adjustable travel stops, ISO mounting interfaces, and accessory modules support easy adaptation to application requirements.
Linear actuators operate via piston-and-cylinder assemblies, configured as either spring-return or double-acting. Double-acting designs use air pressure for both stroke directions, while spring-return models rely on stored mechanical energy to return to the fail-safe position.
These actuators are customizable with a range of body materials, seal types, and stroke lengths to accommodate high cycling or extreme temperatures. Integration with positioners or digital transducers enables modulating service and supports closed-loop control. High-thrust models are available for larger or higher-pressure valves.
Scotch yoke actuators use a mechanical linkage to convert linear piston movement into rotary output. Symmetrical or canted yoke designs are selected based on the desired torque profile. Both double-acting and spring-return models are available for varying operational needs.
Modular construction allows for compatibility with multiple valve sizes, pressures, and mounting standards. Durable materials and specialty coatings are used to extend service life in harsh environments.
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