Zetechtics API 17D Class 1-4 Torque Analyser

Zetechtics have developed a range of battery powered Subsea Torque Verification Systems. This allows the ROV operators to prove the accuracy of a torque tool immediately prior to and after operation of a client’s valve or actuator.

The system interfaces to API 17D Class 1-4 torque tools with three different stem sizes. The system has an inbuilt light sensor that enables the display when illuminated by the ROV’s lights. This allows the Subsea Torque Verification System to remain dorment for prolonged periods.

The remote actuator unit allows zeroing of the displayed value and toggling of the display scale between Nm and lbf-ft.


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  • 3,000msw rated rugged design (currently being tested for 4,000msw – please contact us for more information)
  • Battery powered system with 4 digit display
  • Wakened by ROV lighting
  • RS232 output of displayed value
  • Remote actuator allows zeroing of display
  • Torque reading displayed in either Nm or lbf-ft
  • Torque up to 2,711Nm (2,000 lbf-ft) – depending on stem class
  • Can be used as a conventional deck analyser