ISO 13628-8 Class 7 Torque Convertor

PSS has developed a tool to operate Class 7 Torque Interfaces.


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Class 7 requires 35kNm to achieve this with a stand alone tool requires a very large tool which even with an ROV is not easy to maneuver. To overcome this issue the convertor tool is used.

The tool contains a Class 7 output interface and a receptacle for a Class 4 torque tool, in between the two is a multiplication gearbox.

The tool provides the required torque but maintains all the control (torque and turns) of a Class 4 torque tool.



  • ISO 13628-8 Class 7
  • Up to 35kNm
  • Class 4 Torque Tool input
  • Built in compensator
  • Two different nose lengths supplied