Description
Short thread cap ND9 in red polypropylene with a 0,2 mm virgin PTFE septum provides a practical sealing solution for analytical vials used in routine laboratory workflows. The ND9 short-thread screw geometry is styled like a crimp cap, so the closure remains compatible with robotic gripper arms on automated sample handlers. Virgin PTFE forms a chemically resistant contact layer for the sample path, supporting clean single-injection use where a cost-effective match to instrument-manufacturer quality is required. Compared with natural rubber constructions, synthetic short-thread systems of this type are softer for reliable needle penetration yet are not intended for repeated multiple injections. Related configurations in the same short-thread family include closed versions and mounted closures with slit or pre-cut septa that help limit vacuum formation and concentration fluctuations during sampling. Offered as a 1000-piece pack from manufacturer Altmann Analytik, this red ND9 polypropylene cap with 0,2 mm virgin PTFE is suited to chromatography sample preparation, instrumental analysis and other laboratory applications that need consistent vial sealing and automation-friendly handling.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 1000 pc(s)
- Product type: Short thread cap
- Thread size: ND9
- Cap material: Polypropylene (PP)
- Cap colour: Red
- Septum thickness: 0,2 mm
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Questions about ND9 PP Short Thread Cap, red, 0,2mm
What is this article?
ND9 PP Short Thread Cap, red, 0,2mm is the article on this page. Luminix Health distributes Altmann Analytik 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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.