Description
Conical ground joint NS 29/32 is a standardised male core (Kern) ground-glass connecting element for laboratory apparatus. Manufactured to DIN 12249, the NS 29/32 taper defines the larger diameter and ground length of the cone so that it mates interchangeably with matching female sockets of the same nominal size. This single-piece conical joint supports modular assembly of flasks, condensers, adapters and other glassware where a reliable ground seal is required. The DIN geometry ensures consistent fit across compatible components, which is essential in distillation trains, reaction setups and vacuum lines that rely on classic conical joints. Offered as one piece for targeted replacement or expansion of existing kits, the NS 29/32 core integrates cleanly into teaching and research glassware systems. These conical joints from manufacturer Schlee form part of the fundamental labware range used to couple apparatus without additional sealing media under normal laboratory conditions. Selecting the correct NS size maintains alignment and sealing surface contact throughout the ground zone. The product is intended for routine organic, analytical and preparative workstations that standardise on DIN conical joints.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Product type: Conical ground joint
- Nominal size: NS 29/32
- Joint form: Male core (Kern)
- Standard: DIN 12249
- Technical Information Sheet:
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Questions about Conical joints according DIN 12249, cone NS 29/32
What is this article?
Conical joints according DIN 12249, cone NS 29/32 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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.