Description
BK N20-L silver aluminium crimp cap with centre hole carries a ready-to-use faced butyl/PTFE grey septum disc for N 20 chromatography vials. The septum is rated 50° Shore A with a thickness of 3,0 mm, giving a defined sealing stack for routine GC sample introduction and storage on the bench or autosampler. As an open-top Bördelkappe, the silver aluminium shell is crimped onto compatible N 20 necks so the needle can pierce the faced liner while the metal ring holds the closure in place. Pack size is 100 pieces for continuous laboratory use. These N 20 aluminium crimp caps from manufacturer Macherey-Nagel integrate a grey butyl/PTFE faced disc that presents a consistent PTFE-oriented contact surface with the butyl body providing elasticity. The faced construction reduces handling steps versus separate septa and supports standardised sealing across sample series. Pair with suitable N 20 vials and calibrated crimping equipment to maintain uniform closure quality in analytical workflows.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 100 pc(s)
- Type: N 20 aluminium crimp cap, silver, centre hole
- Septum: Faced disc butyl/PTFE grey
- Hardness: 50° Shore A
- Septum thickness: 3,0 mm
- EAN: 4046681087486
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Questions about CC N20-H, si, Mld. But/PTFE gr, 50°, 3.0
What is this article?
CC N20-H, si, Mld. But/PTFE gr, 50°, 3.0 is the article on this page. Luminix Health distributes Macherey-Nagel for laboratory use. It sits in Vial caps & septa, inside Vials, caps & septa, in Chromatography equipment.
A vial cap and a septum have to match the vial neck: crimp, screw or snap, and the diameter. The septum material, PTFE/silicone or rubber, decides chemical resistance and how many times a needle can pierce it. A septum that sheds into the solvent becomes ghost peaks.
An autosampler vial is the small closed bottle a chromatograph picks up. The neck is crimp, screw or snap, and the cap and the septum have to be that neck. The septum is the part the needle pierces. A soft septum reseals. A septum that is wrong for the solvent swells or sheds particles into the sample. Inserts reduce the volume when the sample is scarce. The separation they feed is described with IUPAC names and PubChem data.
Which category should I open next?
The category is Vials, caps & septa. The sub-category is Vial caps & septa. The catalogue is Chromatography equipment.
Shelves beside this one are Chromatography accessories, Autosampler vials, Crimpers & decappers and Vial inserts.
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.
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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.
