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.

The 20mm Crimp Top Caps produced by Aijiren have a diameter of 20mm and a center hole with a diameter of 9.5mm. The color is the silver color of aluminum itself, which is very modern and beautiful. The matched septa are all 20*3mm, and the double-sided synthetic septa ensures the sealing.

Headspace vials are common consumables generally used in gas phase experiments. Headspace samples are usually prepared in vials containing sample, dilution solvent, matrix modifier and headspace.

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.

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.

Metal caps offer the widest range of temperature tolerances and are very resistant to fracture from impact. Metal caps are great for gas chromatography applications. A metal closure is manufactured from either steel (coated with anti-corrosive coating of either chromeplate or tinplate) or aluminum.

10ml 20ml Headspace GC vials are a type of sample vial used in gas chromatography (GC) analysis.
They are specifically designed for the analysis of volatile and semi-volatile compounds present in a sample.
Headspace analysis involves the extraction of volatile compounds from a solid or liquid sample into the gas phase for injection into a GC instrument.
20mm aluminum caps and septa are commonly used in chromatography applications, including gas chromatography (GC) and high-performance liquid chromatography (HPLC). They are used to seal sample vials and ensure a gas-tight or liquid-tight seal.

Suitable for: 18mm screw top headspace vials
Cap material: magnetic metal
Cap features: 8mm center hole
Color: Metallic Silver
Septa material: PTFE / silicone
Septa size: 17.5*1.5mm
Package: 100pcs/pack

Aijiren Tech Headspace Vial is manufactured to provide uniform glass thickness and ensures uniform thermal distribution for uniform sampling reliability. All Aijiren Tech Headspace Viars meet or exceed OEM manufacturer specifications. AijirenTech Vial is available in 6 ml, 10 ml and 20 ml versions, with screw and crimp types.

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According to different materials, it can be divided into two types, one is domestic borosilicate, and the other is imported first-grade hydrolyzed glass to meet different levels of customer needs.
The optional capacity is 10ml 20ml, the specifications are: 22.5*46mm, 22.5*75mm, and two colorless and brown headspace vials are provided.

Aijiren Tech Headspace Vials are available as screw or crimp neck vials with flat or round bottoms, with clear or amber glass. Headspace closures are available in pre-assembled caps with septums or can be ordered individually. Pressure release, seal with lining, and seal with magnetic lining is also optional.

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;

Headspace vials are a kind of laboratory vials for top space analysis, with the features of high-temperature resistance and corrosion resistance. The material of Headspace Vials is low extractable Borosilicate glass with low expansion rate, high-temperature resistance, high strength, high hardness, high light transmittance and high chemical stability.

The 18mm Screw Headspace Vial and Cap with electromagnetic screw seals used for CTC is novel in the headspace vial market dominated by crimping necks. Especially for magnetic caps that are difficult to crimp, screw caps are a convenient choice. 18mm Screw Headspace Vial and Cap with aluminum skirt and magnetic center plate, it is easy to crimp and remove the cap. 18mm Headspace Vial and Cap is preferred for the following instruments: CTC PAL, Varian, Gerstel, Atas, Shimadzu, Aijiren.

The China 18mm 10ml Screw Headspace Vial Supply is compatible with various headspace sampling techniques and instruments commonly used in the laboratory, such as gas chromatography (GC). The 10ml capacity of these vials is ideal for accommodating moderate sample volumes, facilitating efficient analysis while minimizing the need for frequent sample preparation. The screw top design allows for easy sealing and unsealing, enhancing convenience and workflow efficiency.

SPME Vials, 18mm Screw Thread Vial
Cap: 18mm Magnetic Precision Screw Metal Caps, 8mm Centre Hole
Septa: White PTFE/Blue Transparent Silicone Septa

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 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.

Headspace vials are common consumables generally used in gas phase experiments. Headspace samples are typically prepared in vials containing sample, diluting solvent, matrix modifier, and headspace.

If your sample is sensitive to light, use amber vials. If you need to view a color change then a clear Screw Top HPLC Chromatography Vials are the best choice. The Screw Top Headspace Vials are manufactured from Type I borosilicate glass.
Aijiren as a leading manufacturer in China, supply high quality Screw Top Headspace Vials, caps, septa and syringe filters. The consistancy of our products between each batch is very good, you can be assure with our quality.

Aijiren provides one of the widest selections of Caps, Closures, and Lids available. Select from a wide variety of metal and phenolic, and polypropylene plastic bottle caps, vial lids, and other closures with an array of lining systems to fit your application and container. We also feature dispensing caps, hole caps, septa, tube caps and vial caps.

Gas in the vial enters the gas phase detection. Top-space gas analysis using headspace viars can help automate quality control or sample selection. Use state-of-the-box equipment to prepare your entire experiment for accurate analysis through repeatable samples.

The material of the headspace sample vials is low-extraction borosilicate glass, which is characterized by low expansion, high temperature resistance, high strength, high hardness, high light transmission and high chemical stability. Headspace vials are suitable for headspace analysis of volatile solids and gases. 20mm crimp headspace vial is widely used in Headspace and GC, GCMS application.