Linear Actuator Override Tool

FORUM has developed a range of tools to operate various linear actuator override tool interfaces. Interfaces available are ISO 13628-8 Type A, ISO 13628-8 Type C and customer specific two lug interface.


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Tools are available in a range of loads up to 120 tonnes. The tool supplied usually comprises two parts, the Locking Head, and the Actuator. The actuator contains a hydraulically operated piston powered by an inten- sifier. Actuators can be supplied with hot stabs and check valves. The locking head is a purely mechanical device and is left behind on a subsea interface when the valve is required to be let overridden. A range of strokes are available to suit specific applica- tions.

Most of the tools are manipulator operated but tooling deployment versions of the tools are available that require no manipulator intervention.

For full product range see sales drawing A001-360-015



  • Range of interfaces
  • Up to 120 Tonne Force
  • Range of strokes
  • Hydraulic Set,Mechanical Locked Manipulator or TDU deployed
  • Supplied in offshore suitable transit case