Description
Laboratory stopper in natural rubber, Denog size 9 x 13 x 20 mm, is a compact bung for sealing vessels and lines handling sensitive liquids. The grey natural-rubber quality is sterilizable and suitable for food contact as well as delicate fluids. Shore hardness is approximately 40° or 50°, with temperature resistance from –30 °C to +80 °C. Dimensional tolerances follow DIN 7715 Part 2 M4. Optional bores, blind holes and combined drillings can be specified, and further sizes are available on request; DIN dimensions plus silicone and NBR stock grades are also offered, with CR, red natural rubber and Viton® fluoroelastomer available at short notice. Supplied in packs of 100 pieces from manufacturer Dinkelberg, these stoppers support laboratory sealing tasks where a food-compatible, sterilizable natural-rubber bung in a small Denog format is required. Consistent geometry and the stated hardness range help maintain a reliable fit across repeated handling and cleaning cycles in routine laboratory practice.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 100 pcs/pack
- Material: Natural rubber
- Dimensions: 9 x 13 x 20 mm (Denog size)
- Colour: Grey
- Shore hardness: approx. 40° or 50°
- Temperature resistance: –30 °C to +80 °C
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Questions about Laboratory plug, natural rubber, Denog-size 9 x 13 x 20 mm, 100pc/PAK
What is this article?
Laboratory plug, natural rubber, Denog-size 9 x 13 x 20 mm, 100pc/PAK is the article on this page. Luminix Health distributes Dinkelberg for laboratory use. It sits in Rubber & silicone stoppers, inside Stoppers, caps & closures, in Labware.
A rubber or silicone stopper is pushed into a mouth. The size number corresponds to a top and bottom diameter. Silicone survives higher temperatures and more autoclave cycles. Natural rubber is attacked by oils and by some solvents.
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 Rubber & silicone stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Ground-joint glass 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.