Description
Disposable stopcock, solid glass plug NS 18,8/6,0 mm bore is a specialised laboratory valve for precise control of liquids and gases in experimental glass apparatus. Fabricated from borosilicate glass 3.3, it incorporates a solid glass plug with NS 18,8/6,0 mm bore, bent tube connections and an integrated plug security mechanism that holds the plug securely during operation. Supplied as a single piece, the stopcock fits standard ground-joint systems used in organic synthesis, distillation, vacuum lines and general fluid handling. The clear glass construction permits continuous visual monitoring of plug position and flow path. This component from manufacturer Rettberg combines the chemical resistance and thermal stability of borosilicate glass 3.3 with a lightweight net weight of 0,093 kg, facilitating easy assembly and disassembly of complex setups. It serves effectively as a conical stopcock, valve stopcock or shut-off valve wherever reliable isolation of flow paths is required in research and analytical laboratories. The robust yet transparent design supports repeated use under typical laboratory conditions while maintaining compatibility with a wide range of reagents.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Borosilicate glass 3.3
- Bore: NS 18,8/6,0 mm
- Design: Solid glass plug with bent tube connections and plug security
- Country of origin: Germany
- Technical Information Sheet:
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Questions about Stopcock, straight bore, solid glass plug size 18,8/6,0 mm bore
What is this article?
Stopcock, straight bore, solid glass plug size 18,8/6,0 mm bore is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Labware.
A ground-glass stopper matches a ground neck of a stated joint size. A 14/23 stopper does not seal a 29/32 neck. The stopper is part of the flask's seal, and a chip on the grind is a leak.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Ground-joint glass stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone stoppers, Lids & seals and Closures (other).
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.