DURAN Wheaton Septa (W224173)

DURAN Wheaton Septa (W224173) PTFE Face Silicone OD 20

The DURAN Wheaton Septa (W224173) is a premium-quality PTFE-faced silicone septum engineered for use with unlined aluminum seals having a 20 mm outer diameter. It provides a tight, resealable, and chemically inert closure, making it ideal for high-precision analytical, pharmaceutical, and chemical laboratory applications.

The DURAN Wheaton Septa combines the inert surface of PTFE (polytetrafluoroethylene) with the flexibility of silicone backing, delivering excellent puncture recovery and resistance to chemical degradation. The PTFE face prevents contamination from reactive samples or solvents, while the silicone layer maintains an airtight seal even after multiple punctures, ensuring consistent performance in chromatography and reagent storage.

Its dual-layer construction provides superior chemical compatibility, temperature resistance, and long-term sealing reliability under demanding laboratory conditions.

Product Highlights

• Type: PTFE-Faced Silicone Septa

• Application: For Unlined Aluminum Seals

• Material: PTFE (Face) / Silicone (Backing)

• Outer Diameter: 20 mm

• Resealability: Excellent after repeated punctures

• Chemical Resistance: Outstanding against acids, solvents, and reagents

• Temperature Stability: Suitable for autoclaving and analytical use

• Part Number: W224173

Applications

• Analytical and pharmaceutical laboratories

• Chromatography and sample analysis

• Chemical and biotechnology research

• Serum and reagent vial sealing