20mm aluminum cap

The 20mm Caps with Septa are specifically designed for secure sealing and precise analysis of headspace samples in laboratory settings. These caps have a 20mm diameter, ensuring a tight and reliable fit on crimp headspace vials. The septa, made of high-quality materials, provide excellent sample integrity by preventing contamination and evaporation during storage and analysis.

The Cap and Septas for 20mm Headspace Vial are essential components designed for secure sealing and reliable analysis in headspace sampling applications. The cap provides a tight closure, while the septa acts as a barrier, preventing contamination and maintaining sample integrity. This product is specifically designed to fit 20mm headspace vials, ensuring a seamless and effective sealing solution.

Teflon and silicone rubber or ultra-pure silicone are used as raw materials to ensure that the septa are non-toxic; to ensure excellent functions, it is particularly suitable for gas chromatography, and to ensure that the septum does not fall into the sample vial during the injection process;

20mm Crimp Caps squeeze the septum between the rim of the glass vial and the crimped aluminum cap. This forms an excellent seal preventing evaporation. The crimp cap vial requires crimping tools to carry out the sealing process.

20mm Crimp neck with 6ml, 10ml, and 20ml hold-up volume. Available in flat or rounded bottom designs for accurate instrument compatibility. Pre-assembled 20 mm crimp caps with septa are ready to use with any headspace crimp top vials.

The 20mm septum is made of PTFE/silicone fusion, which has excellent inertness and can be used for multiple injections. The thickness is 3mm, and PTFE is about 0.08mm. The cap of the clamp-top empty bottle is made of metal aluminum

Aluminum Caps for 20mm Crimp-top Vial
9.5mm Centre Hole
Septa: PTFE/ Silicone
Septa Size: 20*3mm

Suit for: 20mm Crimp Top Headspace Vial
Cap Color: Blue
Material: Magnetic Aluminum
Cap Feature: 8mm Centre Hole

Aijiren’s Autosampler Vials, Headspace Vials, including Sample Storage Vials, have different calibers and sizes, and the required Cap and Septa materials and thicknesses are also different. Aijiren produces Cap with Septa and is responsible for the sealing and dust-proof work of Vials. For Septa and Cap The demand is also sealed, easy to sample, easy to disassemble and so on. The advantage of Aijiren’s production of Cap with Septa is that Aijiren has its own exclusive conforming process, which can ensure that Septa is compounded without adhesive and the texture is soft and easy to puncture.

Headspace vials are available in clear or amber glass with a round or flat base, a crimp seal with a beveled or square edge finish, or with a screw-thread finish. Headspace vials, septum, and caps can be purchased in various quantities separately or together as convenience kits to fit your laboratory needs.