Description
DURAN® straight stopcock, ground, without key is a laboratory glass component designed for use as a shut-off cock in glass apparatus and devices. Featuring a 2 mm bore and NS 12,5 joint, it is manufactured from borosilicate glass 3.3. Ground DURAN® straight stopcocks are intended for combination with compatible keys, including DURAN® stopcock keys with groove, threaded keys, or hollow DURAN® keys. For fine dosing, valve stopcocks are better suited; this model supports coarse dosing of liquids. Supplied without the key as a glass article for further processing, it is ready for installation in custom glass systems. From manufacturer Duran/DWK Life Sciences, the component delivers reliable shut-off functionality in assembled laboratory glassware. The ground surface ensures a proper fit with matching keys for secure operation. Its compact form with the smaller bore suits applications needing basic flow control rather than precision metering. Packaged as one piece, it serves as a practical building block for scientific glassware assembly and modification in laboratory environments.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Bore diameter: 2 mm
- Joint size: NS 12,5
- Material: Borosilicate glass 3.3
- EAN: 4032051055308
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Questions about DURAN® Single Way Stopcock, ground, without key
What is this article?
DURAN® Single Way Stopcock, ground, 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.