Description
Cone NS 14/23 DURAN is a precision ground glass joint cone manufactured to DIN 12249 from DURAN tubing. Constructed from borosilicate glass 3.3, this male ground joint features an outer diameter of 13 mm, a length of 120 mm and a wall thickness of 1,5 mm, finished with a ground sealing surface for consistent socket engagement. Net weight is 0,014 kg, balancing handling ease with the rigidity required in multi-piece glass assemblies. DURAN® borosilicate glass 3.3 combines chemical resistance with good thermal shock behaviour for routine laboratory service. Offered as a single piece from manufacturer Witeg, the NS 14/23 cone is widely used in distillation, synthesis, extraction and vacuum apparatus conforming to DIN joint standards. Accurate geometry supports interchangeable, leak-tight connections with matching NS 14/23 sockets and adapters. Well suited to research, quality-control and teaching environments that specify durable, dimensionally controlled ground-joint components.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Joint size: NS 14/23
- Material: Borosilicate glass 3.3
- Outer diameter: 13 mm
- Length: 120 mm
- Wall thickness: 1,5 mm
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Distillation & extraction glassware
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Distillation heads, adapters & columns
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Questions about ST-cone ST14/23 Duran
What is this article?
ST-cone ST14/23 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.
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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.