This website uses cookies. You have the possibility to transfer personal data on this website. Your website visit can be evaluated by external companies. Find out more in our privacy policy.


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


Job offer!

We're seeking for an electronic technician for measurement and testing technology (m/f/d) to support our team at GL Test Systems GmbH in Heilbad Heiligenstadt.

Read more …