Description
Cone joint DURAN (Form B) NS 29/32 is a male ground joint for laboratory glassware systems that use standardised NS tapers. Fabricated from borosilicate glass 3.3, this Form B cone joint features the NS 29/32 size and is suited to chemical apparatus, distillation trains, reaction vessels, and other modular setups requiring interchangeable ground connections. Tube diameter is 26 mm with a wall thickness of 2,0 mm; overall length is 135 mm. Net weight is 0,048 kg, providing a solid yet manageable component for everyday laboratory assembly. This DURAN cone joint from manufacturer Rettberg is designed to mate with corresponding socket joints in Normschliff systems. Offered as one piece and produced in Germany, it serves research, analytical, and educational environments that build custom glass apparatus from standardised joints. The component fits readily into DURAN-compatible configurations and supports consistent multi-part glassware construction across common laboratory workflows.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Joint size: NS 29/32
- Tube diameter: 26 mm
- Wall thickness: 2,0 mm
- Length: 135 mm
- Material: Borosilicate glass 3.3
- Technical Information Sheet:
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Questions about Joint cone/DURAN (shape B) size 29/32
What is this article?
Joint cone/DURAN (shape B) size 29/32 is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Distillation heads, adapters & columns, inside Distillation & extraction glassware, in Labware.
A still head, an adapter or a column is the glass between the boiling flask and the condenser. A Vigreux or packed column gives the vapour a surface so a closer-boiling mixture can separate. The joint sizes at both ends have to match the flask and the condenser.
Distillation separates liquids by boiling point. A condenser turns the vapour back into liquid: Liebig, coil and cold-finger shapes differ in how much cooling surface they offer. A still head and a column sit between the flask and the condenser. A Soxhlet extractor washes a solid again and again with the same solvent. Ground joints have a standard size, and the joint, not the flask, is what has to match. The pieces are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Distillation & extraction glassware. The sub-category is Distillation heads, adapters & columns. The catalogue is Labware.
Shelves beside this one are Condensers, Ground-joint glassware (other) and Soxhlet & extraction apparatus.
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When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.