Description
Disposable stopcock, solid glass plug NS 21,5/6,0 mm bore is a laboratory valve fabricated from borosilicate glass 3.3. It incorporates a solid glass plug with NS 21,5 joint and 6,0 mm bore together with bent tube connections and a stopcock plug retainer. This configuration supports fluid pathway control in glass apparatus assemblies. The item belongs to the valves product type and aligns with conical stopcock, valve stopcock and shut-off valve categories. Supplied as 1 pc with a net weight of 0,061 kg, the component originates from Germany and carries the registered trademark Rettberg ®. Available from manufacturer Rettberg, the stopcock integrates the listed geometric and material specifications for use in laboratory glassware systems. The borosilicate glass 3.3 construction and defined bore dimensions match the manufacturer description exactly for standard joint applications. Bent tube connections enable direct tubing attachment while the plug retainer secures the solid glass plug in position during operation. This single-piece unit provides the essential features required for stopcock functions in scientific setups without additional accessories.
This article is part of Stopcocks & valves, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Material: Borosilicate glass 3.3
- Joint size: NS 21,5
- Bore diameter: 6,0 mm
- Connections: Bent tube connections
- Technical Information Sheet:
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Questions about Stopcock, straight bore, solid glass plug size 21,5/6,0 mm bore
What is this article?
Stopcock, straight bore, solid glass plug size 21,5/6,0 mm bore is the article on this page. Luminix Health distributes Rettberg 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.
