Sub-Sea Systems

Our range of Sub-sea Actuators is based on the hydraulic heavy duty scotch yoke design or linear heavy duty piston, suitable for up to 3,000m permanent submersion.


  • Double Acting (DA) or Spring return (SR)
  • Torque range – up to 400,000NM
  • Thrust range – up to 19.5KN
  • Supply – Up to 350 bar hydraulic
  • Approvals – CE, Shell, Petrobras
  • Clean room assembly of parts to NAS6
  • ROV override available
  • Feedback switches or potentiometer available
  • Special fast removal mounting spool available
  • Testing down to max. 3,000m in hyperbaric chamber
  • Painting – Epoxy paint to sub-sea standard or project specification
  • Accessories – see Component supply include limit switches and limit switch boxes

Additional Services

  • Automation system design using CAD
  • Supply of complete assembled and tested automated Valves
  • Fitting of automation assembly to free-issue Valves
  • Fitting and Testing of customer supplied components (engineering and labour only)