Description
Conical joint sleeve NS 7/16 is a standardised laboratory ground-joint component for interchangeable glassware connections in the NS system. Defined as a female socket (Hülse) to DIN 12249, it supplies the conical interface required to couple matching male cones of the same nominal size in modular apparatus. The NS 7/16 designation identifies a compact joint format frequently chosen for small- to medium-scale assemblies where a reliable, interchangeable seal is essential. Supplied as a single piece from manufacturer Schlee, the sleeve supports routine construction, maintenance and extension of jointed glass setups used in everyday laboratory practice. When paired with a corresponding NS 7/16 cone, the ground conical surfaces create a stable, reusable connection that helps keep flasks, adapters and related parts aligned without non-standard fittings. Facilities that work with DIN-compliant glassware can add this socket directly to existing collections for teaching, sample preparation or general experimental work. Clear size identification and conformity to NS geometry make selection and replacement straightforward. Packaged as one piece, the item is practical for stocking discrete joint sizes or completing incomplete apparatus sets.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Product type: Conical joint sleeve
- Joint size: NS 7/16
- Standard: DIN 12249
- Form: Socket (sleeve)
- Technical Information Sheet:
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Distillation & extraction glassware
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Questions about Conical joints according DIN 12449, socket NS 7/16
What is this article?
Conical joints according DIN 12449, socket NS 7/16 is the article on this page. Luminix Health distributes Schlee 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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.