Description
Socket NS 45/40 is a ground-glass joint socket manufactured to DIN 12249 for modular laboratory glassware assemblies. It features an outer diameter of 50 mm, an overall length of 150 mm and a wall thickness of 2,5 mm, forming a robust female taper for standard NS connections used in distillation, reflux and vacuum apparatus. The precise geometry ensures a reliable, leak-tight seal when mated with a matching cone of the same nominal size. Supplied as a single piece with a net weight of 0,124 kg, this component is produced by manufacturer Witeg to the dimensional tolerances expected in professional chemical laboratories. The NS 45/40 format suits medium- to large-scale setups where interchangeable ground joints simplify apparatus changes and cleaning. It is a practical choice for organic synthesis, preparative chemistry and teaching laboratories that rely on durable borosilicate glass connectors.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Joint size: NS 45/40
- Standard: DIN 12249
- Outer diameter: 50 mm
- Length: 150 mm
- Wall thickness: 2,5 mm
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Distillation & extraction glassware
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Distillation heads, adapters & columns
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Questions about Socket ST 45/40
What is this article?
Socket ST 45/40 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.