DURAN Wheaton Screw Cap (W240820) Phenolic Black

DURAN Wheaton Screw Cap (W240820) Phenolic Black

The DURAN Wheaton Screw Cap (W240820) is an autoclavable black phenolic closure designed for E-Z Ex-Traction vials with a 13-425 thread size. It features a PTFE/Rubber solid liner, providing an excellent chemical barrier and a tight, leakproof seal for analytical, chemical, and pharmaceutical applications.

The DURAN Wheaton Screw Cap combines the rigidity of high-grade phenolic resin with the flexibility and sealing power of a PTFE-faced rubber liner. The PTFE surface ensures complete chemical inertness and prevents sample adsorption, while the rubber backing maintains compressive strength for repeated closures. This construction guarantees long-term durability under sterilization conditions, including autoclaving, without deformation or degradation.

Ideal for reagent storage, chromatography, and sample extraction processes, this cap delivers secure closure integrity, excellent solvent resistance, and extended service life.

Product Highlights

• Type: Screw Cap for E-Z Ex-Traction Vials

• Material: Phenolic Resin (Black)

• Liner: PTFE/Rubber Solid Liner

• Cap Size: 13-425

• Autoclavable: Yes

• Chemical Resistance: Excellent for solvents, acids, and reagents

• Seal Integrity: Airtight and leakproof

• Part Number: W240820

Applications

• Analytical and pharmaceutical laboratories

• Chromatography and extraction systems

• Chemical and biotechnology research

• Reagent and solvent storage