Description
DURAN® straight stopcock, taper 1:5, without key, ground and polished is a precision laboratory glass component for integration into glass apparatus. Manufactured from borosilicate glass 3.3, it features an 8 mm bore and NS 28 joint. The stopcock barrel is ground and polished to enable grease-free working when paired with matching PTFE keys and is particularly suitable for vacuum applications. The alternative 1:5 taper provides a larger cone angle that helps prevent jamming of the stopcock key during use. Supplied as a glass article for further processing, it is intended for installation in custom glass systems and vacuum setups. This DURAN® component from manufacturer Duran/DWK Life Sciences combines the chemical resistance and thermal stability of borosilicate glass 3.3 with a polished surface that supports clean, lubricant-free operation. Laboratories building or modifying glass apparatus requiring reliable vacuum integrity and smooth stopcock performance will find this barrel well suited to demanding experimental conditions where grease-free sealing is essential.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc(s)
- Storage temperature: Standard
- Material: Borosilicate glass 3.3
- Bore: 8 mm
- Joint size: NS 28
- EAN: 4032051056138
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Questions about DURAN® Single Way Stopcock, Taper 1:5, without key, ground and polished
What is this article?
DURAN® Single Way Stopcock, Taper 1:5, without key, ground and polished 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. Delivery across Europe, two to five days when in stock. 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.
