DURAN WHEATON Screw Cap 240409
The DURAN WHEATON Screw Cap 240409 is a premium-grade black phenolic cap with a PTFE-faced rubber liner, designed for 15-425 threaded sample vials.
It offers an airtight, chemically inert, and heat-resistant seal, ensuring the integrity of sensitive samples during storage, transport, and sterilization.
Manufactured by DWK Life Sciences (Germany), this autoclavable closure provides maximum durability, chemical resistance, and compatibility for critical laboratory applications.
Key Features
Autoclavable Design – Resistant to repeated autoclave sterilization up to 121 °C, maintaining sealing performance and shape stability.
PTFE-Faced Rubber Liner – Virgin PTFE film bonded to 14B white SBR rubber ensures inert contact, preventing contamination or leaching.
Durable Phenolic Construction – Thermoset resin provides excellent thermal and chemical resistance compared to polypropylene caps.
Standard 15-425 Thread – Compatible with all standard laboratory sample vials with 15-425 neck finish.
Trusted Laboratory Brand – Manufactured by DWK Life Sciences (WHEATON®), a global standard for scientific closures and glassware.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand | DURAN® / WHEATON® – DWK Life Sciences |
| Model / Catalog No. | 240409 |
| Product Type | Screw Cap for Sample Vials |
| Cap Thread Size | 15-425 |
| Material (Cap) | Black Phenolic (Thermoset Resin) |
| Material (Liner) | PTFE-faced Rubber (14B Styrene-Butadiene Rubber / SBR) |
| Color | Black Cap with White PTFE Liner |
| Closure Type | Screw-Type Closure |
| Autoclavable | Yes – up to 121 °C |
| Chemical Resistance | Excellent for aqueous, acidic, and organic solvents |
| Sterilization Method | Steam Autoclave / Dry-Heat Sterilization |
| Country of Origin | Germany |
| Packaging | Typically 200 pcs per case (may vary by supplier) |
Applications
Safe sealing of analytical, biological, or chemical samples
Ideal for reagents requiring inert PTFE-lined contact surface
Used in pharmaceutical, biotechnological, and R&D laboratories
Suitable for high-purity storage and contamination-sensitive analysis
Product Advantages
Provides inert, airtight, and leak-proof sealing for sensitive samples.
PTFE-faced liner prevents chemical interaction or sample absorption.
Resistant to heat, solvents, and repeated sterilization cycles.
Compatible with standard 15-425 threaded vials for universal lab use.
Backed by DWK Life Sciences precision manufacturing and reliability.
You must be logged in to post a review.
Reviews
There are no reviews yet.