Manufacturer: Ledeen
Hydraulic Subsea Actuators

The Cameron portfolio of LEDEEN* actuators includes hydraulic subsea actuators designed for shallow-water and deepwater applications. Both actuator types can operate with a supply pressure up to 3,000-psi [207-bar] gauge pressure.

Deepwater series For installations beyond 500-ft [152-m] water depth

Shallow-water series (S-GS and S-SY models) For installations to 500-ft [152-m] water depth

Available options

  • Manual override
  • ROV override
  • Microswitch for open-close indication
  • Position transmitter for 0% to 100% travel indication
  • 100% radiographically and liquid-penetrant-inspected welds
  • No external tie rods

Technical Specifications

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Hydraulic Subsea Actuators

Technical Specification

On-off or modulating control of subsea valves


  • All models available as double acting or spring return
  • High torque outputs
  • 57,360 in.lbf [6,480 N.m] for S-GS model
  • 5,700,000 in.lbf [644,000 N·m] for S-SY model
  • 3,600,000 in.lbf [400,000 N.m] for deepwater model
  • Open and close travel stops provide ±3° minimum
  • Scotch yoke mechanism generates powerful opening and closing torque outputs
  • Buna rubber piston seal configurations specifically designed for hydraulic applications
  • Composite guide band on piston provides low-friction guidance and support
  • Epoxy-coated prestressed springs provide consistent performance with corrosion protection
  • Pressure compensator balances oil-filled cavity with ambient pressure

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