Compact LEDEEN Actuators

Save valuable rig space

Four actuators painted blue.

Compact LEDEEN HS and CP actuators—some of the smallest actuators available on the market—save valuable space on a production platform or FPSO vessel when installing automated valve packages within the piping system.

Ideal solutions for space-constrained installations

Unlike conventional scotch yoke actuators, compact LEDEEN actuator profiles are concentric with the valve stem, reducing the required installation space and enabling alternative piping options.

LEDEEN HS compact actuators.

Application-specific torque mechanism

LEDEEN actuators have two different torque mechanisms available, enabling the most appropriate mechanism to be utilized for maximum efficiency.

  • High-pressure hydraulic applications: A small helical spline mechanism is used with a small piston diameter to generate high torque outputs.
  • Low-pressure pneumatic applications: The larger helical slot mechanism is combined with a larger piston diameter to generate an equivalent torque output.

Independently adjustable travel stops

For precise valve positioning, the actuators feature a patent-pending integrated adjustable travel stop subassembly. Valves can be accurately set to the closed position to ensure positive shut-off and set fully open to optimized process flow.


Temperature Range, degF [degC] Gauge Pressure Range, psi [bar]
HS (Compact hydraulic) −22 to 185 [−30 to 85] 145 to 3,000 [10 to 207]
CP (Compact pneumatic) −22 to 185 [−30 to 85] 40 to 160 [3 to 11]