Beschreibung
The check valve NS 14/23 according to Friedrichs-Antlinger is a laboratory glassware component fitted with an exchangeable plastic valve cone. This non-return valve prevents reverse flow in apparatus that require controlled unidirectional passage of gases or liquids. The NS 14/23 ground joint guarantees compatibility with standard laboratory glass systems used in distillation, reaction and vacuum setups. Produced by manufacturer Witeg, the design permits simple replacement of the plastic cone, supporting straightforward maintenance and extended service life. With a net weight of only 0,024 kg it remains a lightweight yet essential accessory for research and analytical laboratories. The Friedrichs-Antlinger configuration is valued for dependable sealing performance within scientific glass assemblies. It integrates readily into complex apparatus where protection against backflow is critical, helping maintain process integrity and operator safety during routine experimental work.
This article belongs on Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Type: Check valve (non-return)
- Design: According to Friedrichs-Antlinger
- Ground joint: NS 14/23
- Valve cone: Exchangeable plastic
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Questions about Safety valve, Friedrichs-Antlinger with
What is this article?
Safety valve, Friedrichs-Antlinger with is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Stopcocks & valves, inside Tubing, hoses & fittings, in Laborbedarf.
A stopcock opens and closes a line, or directs it between ports. Glass stopcocks have a ground plug that needs grease or a PTFE key. The bore decides the flow. A two-way and a three-way key are different parts.
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 Stopcocks & valves. The catalogue is Laborbedarf.
Shelves beside this one are Hose connectors, adapters & fittings, PVC, PTFE & other tubing, 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.