Description
Reducing adapter KNS 29/32 → HNS 24/29 is a standardised ground-joint transition piece that connects laboratory glassware components of unequal taper sizes. It combines a cone joint NS 29/32 with a socket joint NS 24/29, enabling a secure size step-down from a larger male joint to a smaller female joint within modular apparatus trains. This configuration belongs to the established family of normschliff reducing adapters and transition pieces used throughout organic synthesis, distillation and general preparative chemistry. Supplied by manufacturer Witeg as a single-piece unit, the adapter has a net weight of 0,025 kg and a matching gross weight of 0,025 kg, making it a compact addition to any glassware inventory. Laboratories select such KNS-to-HNS reducers whenever existing flasks, condensers or receivers must be coupled without custom fabrication. The clearly defined NS designations ensure interchangeability with other European standard-taper equipment and simplify both initial assembly and later replacement. Originating from Germany, the piece supports reliable mechanical connection in routine and research-scale setups that rely on precise ground-joint geometry for leak-resistant coupling.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Product type: Reducing adapter
- Cone joint: NS 29/32
- Socket joint: NS 24/29
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Questions about Reduction adapter ST 29/32 -> ST 24/29
What is this article?
Reduction adapter ST 29/32 -> ST 24/29 is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Hose connectors, adapters & fittings, inside Tubing, hoses & fittings, in Labware.
A hose connector or adapter joins two lines, or steps one bore down to another. The barb diameter has to match the tube, and the thread has to match the stopcock or the bottle. Most leaks are a mismatch here, not a hole in the tube.
Tubing is how a liquid or a gas moves between two vessels without being poured. Silicone stays flexible and survives repeated autoclaving. PTFE resists almost every solvent and is stiff. PVC is the ordinary flexible line for water and for mild aqueous work. The fitting, not the tube, is what usually leaks: the barb, the thread and the stopcock have to match the tube bore. Glass and plastic apparatus around these lines is indexed under ISO laboratory ware.
Which category should I open next?
The category is Tubing, hoses & fittings. The sub-category is Hose connectors, adapters & fittings. The catalogue is Labware.
Shelves beside this one are PVC, PTFE & other tubing, Stopcocks & valves, Silicone tubing and Tubing accessories.
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.
How does ordering and shipping work?
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.