Description
Reducing adapter KNS 55/44 -> HNS 29/32 is a precision normschliff transition piece that reduces a large cone joint to a widely used smaller socket joint. Equipped with a male cone NS 55/44 (Kern) and a female socket NS 29/32 (Hülse), it enables reliable coupling of oversized flasks or reactors to standard condensers, adapters and receivers. Offered as one piece with a net weight of 0,085 kg, the adapter provides a stable, ground-glass interface suitable for vacuum and atmospheric work. Produced by Witeg, this reducing adapter belongs to the established range of laboratory transition fittings for modular glass apparatus. It supports organic synthesis, scale-up experiments and analytical sample preparation where joint-size mismatch would otherwise require multiple intermediate pieces. Defined taper geometry promotes leak resistance and straightforward interchangeability within NS systems. An efficient solution for chemistry and life-science laboratories working with European standard ground joints.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Type: Reducing adapter (normschliff)
- Cone joint (Kern): NS 55/44
- Socket joint (Hülse): NS 29/32
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Questions about Reduction adapter ST 55/44 -> ST 29/32
What is this article?
Reduction adapter ST 55/44 -> ST 29/32 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.