Description
Double socket NS 14/23 is a precision ground-glass joint sleeve for modular laboratory glassware. It is supplied as Form C (double), nominal size NS 14/23, manufactured to DIN 12249 PRECISO. Key dimensions are outer diameter 17 mm, length 135 mm and wall thickness 1,8 mm; net weight is 0,028 kg. The article is offered as a single piece and provides two female conical ground joints on one body, enabling compact coupling of apparatus that share the NS 14/23 standard. This double socket from manufacturer Witeg belongs to the Normschliffe (standard ground-joint) range and follows the interchangeable geometry defined by DIN 12249. The PRECISO designation indicates controlled dimensional tolerances for consistent fit with matching cones and adapters. Typical laboratory use includes assembly of distillation trains, reaction setups and transfer lines where demountable, reusable NS 14/23 connections are required. Glass construction supports chemical resistance and thermal handling common to borosilicate laboratory systems. Origin is Germany (Baden-Württemberg). The clearly specified diameter, length and wall thickness allow straightforward selection against existing glassware inventories and joint standards.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Joint size: NS 14/23
- Form: C, double socket
- Standard: DIN 12249 PRECISO
- Outer diameter: 17 mm
- Length: 135 mm
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Distillation & extraction glassware
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Distillation heads, adapters & columns
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Questions about ST-Cones ST 14/23 double
What is this article?
ST-Cones ST 14/23 double 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.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Delivery across Europe, two to five days when in stock. 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.

