Description
Intermediate adapter KNS 19/26 to HNS 19/26 is a straight ground-glass connecting piece that links two apparatus components sharing the same standard joint size. Form A2 design features a core joint NS 19/26 and a matching socket joint NS 19/26, manufactured in accordance with DIN 12257 for full interchangeability within modular laboratory glassware systems. The adapter is typically employed to extend or bridge sections in distillation trains, reaction assemblies and vacuum lines without altering joint diameter. Compact and lightweight at 0,022 kg net, it is supplied as a single piece and fits seamlessly into existing NS 19/26 setups. Produced by Witeg, this intermediate piece supports flexible apparatus configuration in chemical synthesis, analytical sample preparation and educational laboratories. Standardised dimensions guarantee leak-tight connections when properly greased or used with PTFE sleeves, while the simple geometry minimises dead volume and simplifies cleaning. Suitable wherever a same-size ground-joint extension or spacer is required.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Type: Intermediate adapter Form A2
- Core joint: NS 19/26
- Socket joint: NS 19/26
- Standard: DIN 12257
Recently viewed
You may also like
Questions about Expansions adapter, form A2, cone ST 19/
What is this article?
Expansions adapter, form A2, cone ST 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.