Description
Reducing adapter KNS 14/23 → HNS 10/19 is a compact laboratory transition piece that joins two different standard ground joint sizes in one fitting. It combines a cone joint NS 14/23 with a socket joint NS 10/19, so glassware finished with the larger cone can be coupled directly to components carrying the smaller NS 10/19 socket. This reduction step is routinely required in distillation trains, reflux assemblies, multi-neck flask setups and vacuum lines where progressive joint-size changes keep the apparatus aligned and mechanically stable.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
At a net weight of only 0,006 kg and supplied as a single piece, the adapter adds negligible mass to delicate glass assemblies. It belongs to the family of standard ground joint reducing and transition pieces used throughout European research, quality-control and teaching laboratories. Manufactured by Witeg in Germany, the piece follows the familiar Normschliff dimensional conventions that ensure interchangeability with common laboratory glassware. Typical applications include organic synthesis work-ups, solvent recovery, analytical sample preparation and educational demonstrations wherever a reliable, leak-conscious connection between mismatched NS joints is needed without intermediate adapters of other formats.
Key features
- Pack size: 1 pc
- Product type: Reducing adapter / transition piece
- Cone joint: NS 14/23 (KNS)
- Socket joint: NS 10/19 (HNS)
- Country of origin: Germany
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Questions about reducing adapter CST 14/23 -> SST 10/19
What is this article?
reducing adapter CST 14/23 -> SST 10/19 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.