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20ml Headspace Vials, Amber Class, Screw Vial

The headspace sample bottles are available in 10 types of 10mL and 20mL volumes, with flat or round bottoms. The 20mm crimp cap provides an always guaranteed seal. Crimping or screw-top vials are available, with a beveled top for maximum safety sealing, two neck lengths are available, and flat-bottom or round-bottom designs are available.

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20ml Headspace Vial Description

Bottles equipped with 18mm caps with septa are used as sample bottles, and bottles equipped with diffusion caps are used as washing bottles. These sample bottles can also be used as storage bottles. Precisely machined threads ensure sealing at all times. It fits perfectly with the matching 18mm magnetic metal screw cap and PTFE/silicone septum. The caliber of this series of headspace bottles is 18mm, and the size of 20ml is 22.5*75mm.

Screw Neck Vial Features

  • • The Screw Neck Vials with Magnetic Screw Seals for CTC are novelties in the crimped neck-dominated Headspace market. However, especially for hard-to-crimp magnetic caps, screw closures are a convenient alternative.
  • •    Reproducible results, as uptightness due to crimping faults by incorrectly adjusted or non-adjustable crimpers are excluded.
  • •    The vials are preferentially used on instruments: CTC PAL, Varian, Gerstel, Atas, Shimadzu, and Aijiren.
  • •    The caps with an aluminum skirt and a magnetic central disk, are easy to crimp and decamp.
Matching bottle cap and gasket:
The septa uses only the highest quality materials to ensure proper function, and is especially suitable for gas chromatograph applications, ensuring that the septa will not fall into the sample vial during sample injection. The septa are made of PTFE/silicone fusion, they are made of TFE/silicone fusion, and have excellent inertness and can be used for multiple injections. The thickness of the septum is 1.5mm.
The screw headspace series bottle caps combine innovation with time-saving convenience, precise manufacturing tolerances, and a controllable manufacturing environment. The bottle cap produced by this patented method truly combines the septum and the cap at the molecular level to avoid excessive evaporation and keep the sample bottle properly sealed.
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