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Valve Actuators
Quarter-Turn: Rack & Pinion Actuators

Quarter-Turn: Rack & Pinion Actuators

Here you can learn about how rack & pinion quarter‑turn valve actuators work, their key advantages, technical specifications, and typical industry uses - and browse our full range of products.

How do quarter-turn: rack & pinion valve actuators work? 
Rack & pinion actuators use opposing pistons connected to a central pinion gear. Compressed air moves the pistons, rotating the pinion to turn the valve 90°. This design provides reliable, precise, and repeatable motion for quarter‑turn valves such as ball, butterfly, and plug valves.
Advantages of quarter-turn: rack & pinion valve actuators...
• Compact, lightweight design
• Smooth and consistent operation
• Suitable for high‑cycle applications
• Easy to service and maintain
Technical Parameters:
Pressure Ratings
Dependent on valve design - supports: PN10, PN16, PN25, PN40, PN63, PN100, CL150, CL300, CL600, CL900, CL1500, CL2500
Temperature Range
Typically –20 °C to +80 °C Extended‑temperature models: –40 °C to +120 °C (Valve limits may differ)
Size Range
Suitable for valves DN25–DN1200 (1″–48″)
Materials
Anodised aluminium housings, stainless steel shafts, carbon steel, nickel‑plated or epoxy‑coated components
Industry Application:
EFW
Oil & Gas
Power
Media Type:
Water
Gas
Steam
Oil
Chemicals

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