Description
Double socket NS 19/26 is a ground-glass joint sleeve intended for standardised laboratory glass assemblies. The component is Form C (double), nominal joint size NS 19/26, produced to DIN 12249 PRECISO. Stated dimensions are outer diameter 22 mm, length 140 mm and wall thickness 1,8 mm, with a net weight of 0,036 kg. Supplied as one piece, the sleeve carries two female NS 19/26 ground joints, allowing direct interconnection of flasks, condensers, adapters and other apparatus that use this common conical size. Available from manufacturer Witeg within the Normschliffe category, the part follows the interchangeable geometry of DIN 12249. The PRECISO quality level reflects tight control of joint dimensions for reliable mating with corresponding cones. Laboratories employ such double sockets when building modular distillation, reaction or transfer setups that must be assembled and dismantled repeatedly. Clear specification of diameter, length and wall thickness simplifies matching to existing glassware stocks. Country of origin is Germany (Baden-Württemberg). The article supports clean, reusable connections without additional sealing media beyond the ground joint itself.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Joint size: NS 19/26
- Form: C, double socket
- Standard: DIN 12249 PRECISO
- Outer diameter: 22 mm
- Length: 140 mm
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Distillation & extraction glassware
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Distillation heads, adapters & columns
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Questions about ST-Socket ST 19/26 double
What is this article?
ST-Socket ST 19/26 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. 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.