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Core sleeves

The GL Test Systems GmbH offers a wide range of core sleeves to protect a cylindrical specimen from the pressure medium in triaxial pressure vessels.

  • Materials: NBR, FKM
  • Standard sizes: 1“, 1.5“, 2“, 18mm 30mm, 50mm, 100mm (other on request)
  • Wall thickness: 1.5  3.0 4.5 mm
  • Length: up to 1000 mm
  • Option for special radial adaptors e.g. for lateral strain or ultrasonics
  • Optimal fit for many pressure vessels
  • Optimal pressure transmission
  • Maximum tightness in the entire range from low to maximum confining pressure
  • Seals even after sample failure 
  • Suitable for long-term tests
  • Typically reusable
  • Easy installation and removal of the sample
  • Optimal protection of the sample
  • Tight without any additional seals
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