DURAN® sleeve and core ground joints

DURAN® sleeve and core joints are high-quality laboratory glass components made of borosilicate glass 3.3 according to DIN ISO 3585. They enable secure, tight and precise connections in glass apparatus and are indispensable for demanding applications in analysis, synthesis, distillation and sampling technology.

Product variants:

• Sleeve ground (Form E): Standard ground for receiving core grounds
  
• Core grind (Form B): Standard grind for connection with sleeve grinds

Product features:

• Material: Borosilicate glass 3.3 (DURAN) – highest chemical resistance and excellent thermal shock resistance
  
• Standard ground joint (NS): Available in various sizes from NS 5/13 to NS 100/60
  
• Precision manufacturing: Exact ground fit for vacuum-tight and medium-tight connections
  
• Design: Form E (sleeve) and Form B (core) according to DIN standard
  
• Wall thickness and pipe diameter: Precisely matched to the NS size

Technical specifications:

The ground glass components are available in various standard ground glass sizes. The technical specifications (tube diameter, wall thickness) vary depending on the standard ground glass size and design and are product-specific.

Important instructions!

Sales to business customers only: Distribution is exclusively to companies, public institutions, and universities. Delivery to private individuals is excluded.

Product images: Images are for illustrative purposes only and may differ from the actual product. An example variant may be shown.