Description
DURAN® cone with drain, ground, NS 14/23 is a precision laboratory glass joint component made from borosilicate glass 3.3 for assembly into glass apparatus and devices. These cones with drain conform to DIN 12249 Form G. The integrated drain functions as a drip ring: it prevents liquid from running down the vessel inner wall, is typically cut at an angle and fused, and keeps media away from the greased ground joint surface so that liquids drain cleanly without wetting the joint. The additional drain can also serve as an attachment point for extensions for various purposes, for example as an inlet tube. Particular advantages include the fine ground finish with reduced roughness depth and a tight seal through the standard ground joint. Supplied as one piece with a net weight of 0,015 kg, this glass article for further processing from manufacturer Duran/DWK Life Sciences is intended for incorporation into laboratory glassware setups where controlled run-off and secure NS connections are required. It supports reliable joints in apparatus construction while maintaining joint integrity during liquid handling.
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 14/23
- Standard: DIN 12249 Form G
- EAN: 4032051047556
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Distillation & extraction glassware
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Distillation heads, adapters & columns
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Questions about DURAN® Standard Cone with tip, finished
What is this article?
DURAN® Standard Cone with tip, 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.

