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MK2 Torque Tool Class 4 to 5 Multiplier

MK2 Torque Tool Class 4 to 5 Multiplier

Torque Tool
The Class 4 to 5 Multipllier enables the use of a Class 4 Torque Tool in a Class 5 receptacle, by incorporating a gearbox to provide the output torque multiplication.
The torque tool multiplier provides a mechanical advantage to actuate components where relatively high torques is required, such as the manipulator of valves and any class 5 interface. A class 5 multiplier is simple, lighter, more cost effective solution and easier to deploy operationally than a hydraulically actuated class 5 torque tool. When coupled with a Smart Torque Tool MK2, it provides greater accuracy, control and safety than other hydraulic tools that utilise relief valves for over-torque protection.


  • Easy installation and removal
  • Field proven
  • ISO 13628-8 compliant
  • Lightweight and compact design
  • ROV deployable
  • 3000m rated compensation system




Overall Dimensions 514L x290W x413Hmm
Weight in Air 47kg
Weight in Seawater 35kg
Nominal Torque Ratio 1:3.8
Turns Ratio 1:4
Input Interface ISO Class 4
Output Interface ISO Class 5
Max. Torque Input 2360 Nm
Max. Torque Output 8000Nm
Depth Rating (comp. loop) 3000m+
Subsea Operational Life 2 weeks