Description
DURAN® straight stopcock, ground and polished, without key is a precision laboratory glassware component intended for use as a shut-off valve in glass apparatus and devices. It features a bore of 10 mm and an NS 29,2 standard joint, crafted from durable borosilicate glass 3.3. Ground and polished DURAN® straight stopcocks are designed to be paired with PTFE stopcock keys, enabling completely grease-free working. The polished surface of the stopcock barrel ensures smooth operation and reliable sealing with a taper ratio of 1:10. This glass article is supplied without the key for further processing and integration into custom laboratory setups. Available from manufacturer Duran/DWK Life Sciences, the component is particularly suited for installation in glass systems where clean, lubricant-free conditions are preferred. Its construction supports robust performance in standard laboratory environments. The straight design facilitates straightforward flow control in assembled apparatus. Packaged as a single piece, it provides a high-quality building block for scientific glassware fabrication and modification in research and industrial labs.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Bore diameter: 10 mm
- Joint size: NS 29,2
- Material: Borosilicate glass 3.3
- EAN: 4032051055247
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Questions about DURAN® Single Way Stopcock, ground and polished,, without key
What is this article?
DURAN® Single Way Stopcock, ground and polished,, without key is the article on this page. Luminix Health distributes DWK Life Sciences for laboratory use. It sits in Stopcocks & valves, inside Tubing, hoses & fittings, in Labware.
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 Labware.
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.