Description
Single way stopcock, DURAN® with PTFE-cock is a laboratory glass component for controlled one-way flow in jointed apparatus. It is specified for joint 21,5, with a pipe diameter of 13 mm and a bore hole of 6 mm, matching common requirements in distillation, extraction and related glass assemblies. The DURAN® body together with the PTFE cock provides smooth plug action for shut-off and routing between connected sections of glassware. Delivered as 1 pc from manufacturer DWK Life Sciences, this stopcock suits modular laboratory glass systems that need a single-path valve at a defined joint size. It belongs to the glass stopcocks and plugs category used with laboratory glass vessels and consumables. Stated joint, pipe and bore dimensions support consistent geometry when building or maintaining glass lines for synthesis work-up, solvent handling or apparatus isolation. Lightweight construction keeps the component practical within fine glassware trains. Research, teaching and routine analytical laboratories working with DURAN® jointed systems can deploy this PTFE-cock stopcock for everyday flow-control tasks in wet-chemistry setups.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Product type: Single way stopcock
- Body / cock: DURAN® with PTFE-cock
- Joint size: 21,5
- Pipe diameter: 13 mm
- Bore hole: 6 mm
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Questions about One-way tap, 21,5, 6.0 mm
What is this article?
One-way tap, 21,5, 6.0 mm 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?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.