Duran Wheaton Screw Cap for Sample Vials 240408

DURAN WHEATON Screw Cap 240408

The DURAN WHEATON Screw Cap 240408 is a high-quality autoclavable phenolic screw cap with a PTFE-faced rubber liner, designed for laboratory sample vials with a 13-425 thread finish.
It provides an airtight, chemically inert, and heat-resistant seal, ensuring sample integrity during storage, analysis, and sterilization.
Manufactured by DWK Life Sciences (Germany), this closure combines durability, compatibility, and performance for professional laboratory use.

Key Features

• Autoclavable Construction – Withstands repeated sterilization up to 121 °C without deformation or seal degradation.

• PTFE-Faced Rubber Liner – Virgin PTFE film (0.005 inch) bonded to 14B SBR rubber ensures an inert, leak-proof interface between cap and vial.

• Durable Phenolic Material – Black thermoset phenolic resin provides excellent resistance to chemicals, solvents, and heat.

• Standard 13-425 Thread – Compatible with common laboratory sample vials and ensures consistent fit and sealing performance.

• Trusted Laboratory Brand – Manufactured by DWK Life Sciences (WHEATON®), known globally for precision glassware and closures.

Technical Specifications

Applications

• Sealing and storage of analytical, biological, or chemical samples

• Ideal for reagents requiring chemically inert PTFE contact surface

• Suitable for pharmaceutical and biotechnology labs

• Sample preparation, transport, and long-term preservation

• Research, QA/QC, and educational laboratory environments

Product Advantages

• Ensures airtight, contamination-free, and chemically inert sealing.

• Autoclavable and reusable, maintaining high integrity across multiple sterilization cycles.

• PTFE-faced liner prevents sample contact with rubber, minimizing leaching and adsorption.

• Compatible with 13-425 vials, providing a secure and universal fit.

• Designed and produced under DWK Life Sciences quality standards, ensuring reliability and traceability.