Description
SVS Screw Connection NS 19/26 is a laboratory glass adapter that provides a reliable transition between a standard ground joint and a screw-thread coupling. It features a cone joint NS 19/26 together with a GL 25/10 thread, a seal measuring 22 × 10 mm and an overall length of 65 mm. Supplied as glass parts only and conforming to DIN 12257, the single piece weighs 0,02 kg net and is designed for secure assembly of reaction flasks, condensers, distillation apparatus and transfer lines. The NS 19/26 cone integrates with matching sockets common in European laboratory glassware, while the GL 25/10 interface accepts corresponding screw fittings, helping maintain stable joints during synthesis, extraction or sample handling. This SVS screw connection from manufacturer Witeg supports modular glassware setups in research, quality-control and teaching environments where interchangeable components and straightforward coupling are required. Its defined length and seal dimensions facilitate reproducible installation and compatibility with existing GL-thread accessories on the laboratory bench.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Joint size: NS 19/26
- Thread: GL 25/10
- Seal dimensions: 22 × 10 mm
- Length: 65 mm
- Material: Glass parts only
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Distillation & extraction glassware
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Distillation heads, adapters & columns
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Questions about Screw-thread, with cone ST 19/26
What is this article?
Screw-thread, with cone ST 19/26 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.
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.