Description
Transition piece, cone NS 29 – socket NS 45 is a ground-joint adapter that links laboratory apparatus fitted with different standard taper sizes. The cone side carries an NS 29 joint, while the socket side accepts an NS 45 joint, enabling a direct, leak-resistant connection between components that would otherwise be incompatible. Such transition pieces are routinely used when assembling distillation trains, reaction setups, vacuum lines or multi-neck flask configurations in which glassware from different series must be combined. By bridging the NS 29 and NS 45 formats, the adapter preserves the continuity of the ground-joint system and supports modular rearrangement of apparatus without custom glassblowing. Supplied as a single piece from manufacturer Starke, it fits standard laboratory workflows that rely on interchangeable Normschliff (NS) joints. The clear cone-to-socket orientation simplifies orientation during assembly and helps maintain alignment under vacuum or slight overpressure. This transition piece is intended for general laboratory material use wherever reliable mechanical and sealing continuity between NS 29 and NS 45 joints is required.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Product type: Transition piece (cone to socket)
- Cone joint: NS 29
- Socket joint: NS 45
- Joint system: Standard ground joint (NS)
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Distillation & extraction glassware
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Distillation heads, adapters & columns
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Questions about Transition pieces Core NS 29 - Sleeve NS 45
What is this article?
Transition pieces Core NS 29 - Sleeve NS 45 is the article on this page. Luminix Health distributes Starke for laboratory use. It sits in Distillation heads, adapters & columns, inside Distillation & extraction glassware, in Matériel de laboratoire.
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 Matériel de laboratoire.
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.
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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.