Description
DURAN® ground cone NS 10/19 is a precision male ground-glass joint intended for assembly into laboratory glass apparatus. Produced from borosilicate glass 3.3, the cone follows DIN 12249 Form B geometry and is finished with a fine grind that achieves lower surface roughness than conventional joints. This refined surface reduces the quantity of joint grease required and significantly decreases the likelihood of the joint seizing during use. Conical ground joints remain the most widely employed connection method in glass apparatus construction; for a reliable seal they should be combined with joint grease or PTFE sleeves, while KECK™ conical joint clips offer convenient mechanical securing. The article is supplied as a single piece ready for further processing and incorporation into custom glassware systems. Available from manufacturer Duran/DWK Life Sciences, the NS 10/19 size guarantees interchangeability with corresponding sockets and supports dense, leak-resistant closures in demanding laboratory environments where the chemical resistance and thermal stability of borosilicate glass 3.3 are essential for durable apparatus construction.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Material: Borosilicate glass 3.3
- Joint size: NS 10/19
- Standard: DIN 12249 Form B
- EAN: 4032051046733
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Distillation & extraction glassware
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Distillation heads, adapters & columns
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Questions about DURAN® Standard Cone finished
What is this article?
DURAN® Standard Cone finished is the article on this page. Luminix Health distributes DWK Life Sciences 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.
How does ordering and shipping work?
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.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.