DURAN WHEATON Screw Cap 240208
The DURAN WHEATON Screw Cap 240208 is a precision-engineered black phenolic screw cap with a white rubber liner, designed for laboratory sample vials with a 13-425 thread finish.
This cap provides an airtight, heat-resistant, and chemically durable seal, ideal for demanding laboratory and industrial environments.
Manufactured by DWK Life Sciences Germany, it ensures consistent sealing performance during storage, transport, or sterilization.
Key Features
Autoclavable Design – Safely withstands repeated sterilization at temperatures up to 121 °C without deformation or loss of integrity.
Phenolic Construction – Offers superior mechanical strength and resistance to aggressive solvents or heat exposure.
Rubber Liner (SBR) – White styrene-butadiene liner delivers tight, leak-proof sealing suitable for analytical and biological applications.
Standard 13-425 Thread – Compatible with most laboratory sample vials of the same thread specification.
Reliable Brand Quality – Produced by DWK Life Sciences (WHEATON®), a global leader in laboratory closures and glassware.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand | DURAN / WHEATON – DWK Life Sciences |
| Model / Catalog No. | 240208 |
| Product Type | Screw Cap for Sample Vials |
| Cap Size (Thread) | 13-425 |
| Material (Cap) | Black Phenolic (Thermoset Resin) |
| Material (Liner) | White Rubber (SBR – Styrene-Butadiene Rubber) |
| Color | Black Cap with White Rubber Liner |
| Closure Type | Screw-Type Closure |
| Autoclavable | Yes – up to 121 °C |
| Chemical Resistance | Excellent against aqueous and organic solutions |
| Sterilization Method | Steam Autoclave / Dry Heat |
| Country of Origin | Germany |
| Packaging | Typically 200 pcs per case (depends on supplier) |
Applications
Secure sealing for sample vials in chemical, biological, and pharmaceutical laboratories
Suitable for storage of reagents, buffers, and analytical solutions
Ideal for high-temperature sterilization and contamination-sensitive operations
Commonly used in R&D, educational, and industrial laboratory settings
Product Advantages
Ensures leak-proof, contamination-free sealing even under sterilization conditions.
Durable phenolic structure provides long-term reliability and heat resistance.
Reusable and autoclavable for repeated laboratory use.
Fits standard 13-425 vials, ensuring universal compatibility.
Backed by DWK Life Sciences precision manufacturing, trusted worldwide.
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