Description
Aluminium overpressure safety cap N20-L silver is a metal closure intended for N 20 vial systems used in chromatography and analytical sample handling. The silver aluminium construction features a centre hole, allowing septum access for injection or sampling while the overpressure safety design supports controlled pressure relief in demanding applications. Packaged in units of 100 pieces, the cap is suited to routine laboratory workflows where reliable crimp or safety closure geometry and consistent hole alignment matter for autosampler compatibility. The N20-L format pairs with matching septa and vials commonly employed in GC and related techniques, helping laboratories standardise consumables across methods. From manufacturer Macherey-Nagel, this silver aluminium overpressure safety cap provides a straightforward metal shell for secure sealing of sample containers under typical analytical conditions. Its hole design facilitates needle penetration through an underlying septum without compromising the mechanical function of the cap, supporting efficient sample introduction and storage in research and quality-control environments that rely on standardised N 20 accessories.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 100 pc(s)
- Type: N 20 overpressure safety cap
- Material: Aluminium
- Colour: Silver
- Design: With hole
- EAN: 4046681086489
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Questions about PR N20-H, si
What is this article?
PR N20-H, si 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.
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.