Constant-Torque Standard

Constant tension clamp

  • Material: S10, S40
  • Clamping Ranges: 12 mm - 160 mm
  • Bandwidth: 14.3 mm

Download datasheet

Available in the webshop


Constant Torque Standard (HKFK) is a breakthrough in clamping technology. A Belleville spring mechanism permits the constant torque clamp to automatically increase or decrease its own diameter due to changes in operational or environmental temperatures. The unique design eliminates “cold flow” leaks.

What you will love!

  • Increased sealing reliability across a wide temperature range
  • Automatic re-tensioning during temperature changes
  • High performance
  • Inner liner helps to maintain consistent sealing pressure

Where can you use it?



  • Commercial vehicle
  • Passenger vehicle
  • Industrial
  • Infrastructure

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