Description
Transparent VMQ silicone stopper with lower diameter 14 mm, upper diameter 18 mm and height 20 mm provides a reliable tapered seal for laboratory glassware and vessels. Made from silicone elastomer (VMQ), the stopper incorporates a single central bore of 3 mm diameter, enabling convenient insertion of tubing, probes or capillaries while maintaining closure integrity. Net weight is 0,00421 kg. The transparent body allows visual monitoring of the vessel contents and supports applications in chemical synthesis, sample storage, gas inlet arrangements and general analytical work. Its tapered profile ensures a secure fit in necks requiring a 14–18 mm range. This laboratory stopper from manufacturer Deutsch & Neumann is supplied as a single piece and is suited to routine sealing tasks where chemical resistance and flexibility of silicone are advantageous. Ideal for research, quality-control and teaching laboratories needing a clear, bored silicone closure of defined dimensions.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Silicone (VMQ)
- Lower diameter: 14 mm
- Upper diameter: 18 mm
- Height: 20 mm
- Bore diameter: 3 mm
- Technical Information Sheet:
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Questions about stopper VMQ, transparent, bottom diameter: 14 mm top diameter: 18 mm height: 20
What is this article?
stopper VMQ, transparent, bottom diameter: 14 mm top diameter: 18 mm height: 20 is the article on this page. Luminix Health distributes Deutsch & Neumann 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.