Description
VMQ silicone stopper, transparent, is a tapered laboratory stopper intended for sealing flasks, bottles and other vessels in analytical and preparative work. It features a lower diameter of 17 mm and an upper diameter of 22 mm together with a height of 25 mm, giving a secure conical fit in matching necks. Two bores, each 4 mm in diameter, allow simultaneous insertion of tubing, probes or glassware accessories while the stopper remains seated. Fabricated from silicone elastomer (VMQ), the transparent body offers the flexibility and resilience characteristic of this material class and permits visual monitoring of the sealed interior. Suitable for routine laboratory sealing tasks where dual-port access is required, the stopper supports common experimental setups involving gas lines, liquid transfer or temperature measurement. These stoppers from manufacturer Deutsch & Neumann come in a pack of 100 pieces; each unit has a net weight of 0,00794 kg. The design aligns with standard silicone stopper ranges used throughout chemical, biological and pharmaceutical laboratories for reliable temporary closures.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Material: Silicone (VMQ)
- Lower diameter: 17 mm
- Upper diameter: 22 mm
- Height: 25 mm
- Bore diameter: 4 mm
- Technical Information Sheet:
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Questions about stopper VMQ, transparent, bottom diameter: 17 mm top diameter: 22 mm height: 25
What is this article?
stopper VMQ, transparent, bottom diameter: 17 mm top diameter: 22 mm height: 25 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.