Beschrijving
Schlenk tube, 250 ml, cone NS 29/32, lateral glass stopcock 2,5 mm and olive 9 mm is a precision laboratory glassware component for Schlenk apparatus applications. This tube offers a nominal volume of 250 ml and incorporates a standard cone joint of size NS 29/32 together with a lateral glass stopcock fitted with a solid glass plug of NS 14,5/2,5 mm bore and a 9 mm olive for tubing connection. Fabricated entirely from borosilicate glass 3.3, the item provides the chemical durability and thermal performance expected in inert-atmosphere and vacuum work. The complete unit is supplied as one piece with a net weight of 0,212 kg and originates from Germany under the registered trademark Rettberg ®. Mid-description reference notes that the tube is produced by manufacturer Rettberg. Its design supports reliable sealing and transfer operations typical of Schlenk-line techniques while remaining fully compatible with standard ground-joint glassware. The combination of the defined joint size, stopcock bore and olive diameter ensures straightforward integration into existing laboratory setups for handling air-sensitive materials.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Product type: Schlenk apparatus
- Nominal volume: 250 ml
- Joint size: NS 29/32
- Material: Borosilicate glass 3.3
- Stopcock bore: 2,5 mm (NS 14,5/2,5 mm solid glass plug)
- Technical Information Sheet:
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Questions about Nitrogen tube, 250 ml, cone size 29/32, side stopcock 2,5 mm bore,
What is this article?
Nitrogen tube, 250 ml, cone size 29/32, side stopcock 2,5 mm bore, is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Kranen & ventielen, inside Slangen, leidingen & koppelingen, in Labmateriaal.
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 Slangen, leidingen & koppelingen. The sub-category is Kranen & ventielen. The catalogue is Labmateriaal.
Shelves beside this one are Slangverbinders, adapters & fittingen, PVC-, PTFE- & overige slangen, Siliconenslang and Slangaccessoires.
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.
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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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.