Description
Cone NS 29/32 DURAN is a precision ground joint cone manufactured to DIN 12249 from DURAN tubing in borosilicate glass 3.3. It features an outer diameter of 26 mm, a length of 150 mm and a wall thickness of 2,0 mm, providing a standardised NS 29/32 taper for robust, interchangeable connections in laboratory glassware. The single unit has a net weight of 0,048 kg and delivers the chemical resistance and thermal stability associated with borosilicate glass 3.3. This cone from manufacturer Witeg is designed for building or repairing distillation columns, reaction assemblies, multi-neck flasks and other modular apparatus that rely on leak-tight ground-glass joints. The accurately ground surface ensures consistent sealing with matching NS 29/32 sockets under vacuum or mild over-pressure typical of synthetic and analytical work. DURAN® material offers high purity and mechanical durability for repeated use and autoclave or oven cleaning cycles. Suitable for research, industrial and educational laboratories that specify standardised glass joint components of defined dimensions and proven performance.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Product type: Ground joint cone NS 29/32
- Material: Borosilicate glass 3.3
- Trademark: DURAN®
- Outer diameter: 26 mm
- Length: 150 mm
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Questions about ST-cone ST29/32 Duran
What is this article?
ST-cone ST29/32 Duran is the article on this page. Luminix Health distributes Witeg 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.
What should I check before I order?
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.