Product Description
A crimp seal that pierces easily reduces needle wear and keeps injections consistent. This 20 mm bi-metal seal combines a thin-center PTFE/silicone septum with a two-metal construction for secure crimping on standard 20 mm vials. It suits routine headspace and GC sample preparation.
This listing is for Wheaton catalog number W224322: Bi-Metal A/S Seal, Thin Center PTFE/Silicone Septum, 20 mm, Case of 100. The PTFE face presents an inert surface to the sample, while silicone provides resealing after puncture. Apply the seal with a 20 mm crimper for a uniform closure. Seals are supplied 100 per case. The thin center reduces the force needed for the autosampler needle, which can help extend needle and septum life over long runs. Order it from LIGHT LABS and keep your lab stocked with genuine DWK Life Sciences products.
Key Features
- Bi-metal construction – Two-metal seal for secure crimping.
- Thin center septum – Eases needle penetration.
- PTFE/silicone septum – Inert face with resealing silicone.
- 20 mm size – Fits standard 20 mm crimp vials.
Specifications
| Catalog Number | W224322 |
| Brand | Wheaton (DWK Life Sciences) |
| Description | Bi-Metal A/S Seal, Thin Center PTFE/Silicone Septum, 20 mm |
| Sold As | Case of 100 |
| Size | 20 mm |
| Closure type | Bi-metal crimp seal |
| Septum | Thin center PTFE/silicone |
Applications
- Headspace GC
- Crimp vial sealing
- Volatile organic analysis
- Autosampler injection
