Description
For Socket: Non-Serrated in Natural Rubber
| Catalogue no. | Sizes |
| 19821/17 | B – 14 |
| 19821/18 | B – 19 |
| 19821/19 | B – 24 |
| 19821/20 | B – 29 |
For Socket: Serrated in Natural Rubber
| Catalogue no. | Sizes |
| 19821/21 | B – 14 |
| 19821/22 | B – 19 |
| 19821/23 | B – 24 |
| 19821/24 | B – 29 |
For Socket: Non-Serrated in Silicone Rubber
| Catalogue no. | Sizes |
| 19821/25 | B – 14 |
| 19821/26 | B – 19 |
| 19821/27 | B – 24 |
| 19821/28 | B – 29 |
For Socket: Serrated in Silicone Rubber
| Catalogue no. | Sizes |
| 19821/29 | B – 14 |
| 19821/30 | B – 19 |
| 19821/31 | B – 24 |
| 19821/32 | B – 29 |
Turnover Flange Septa are precision-moulded sealing components designed for laboratory glassware such as flasks, tubes, and bottles. They provide a secure, leak-proof barrier while allowing controlled access for needles, probes, or sampling devices. Manufactured from high-quality silicone or natural rubber, they ensure reliable sealing performance essential for sterile workflows, chemical handling, and analytical procedures.
Key Features
- Excellent sealing efficiency for preventing leaks, contamination, and sample loss
- Flexible turnover flange design ensures a firm grip on glassware openings
- Chemical-resistant and thermally stable (varies by material)
- Compatible with vacuum operations and sterile techniques
- Durable, reusable, and easy to install/remove
- Available in multiple sizes to suit various laboratory glassware
Material Specifications
- Material Options: Silicone rubber / Natural rubber
- Thermal Properties: Silicone: High-temperature stability, suitable for autoclaving. Natural Rubber: Good elasticity and mechanical strength
- Chemical Resistance: Silicone: High chemical and solvent resistance. Natural Rubber: Resistant to mild acids and bases
- Certifications/Standards: Manufactured in compliance with common laboratory quality standards (ISO & ASTM moulds where applicable)
Technical Specifications
- Available Sizes: Wide range to fit standard laboratory flasks and tubing ports
- Dimensions: Customised diameters and flange profiles based on application
- Accuracy/Tolerance: Precision-moulded for consistent sealing performance
- Accessories Included: Supplied as individual units or assorted packs (as required)
Handling & Precautions
- Ensure proper fit to avoid air leakage or vacuum loss
- Clean with mild detergents; silicone variants are autoclavable
- Avoid exposure to harsh solvents when using natural rubber models
- Do not use damaged or worn septa; replace them immediately for safety
- Store in a cool, dry place away from direct sunlight to maintain longevity
Applications
- Ideal for microbiology labs, analytical labs, and chemical processing units
- Used for sealing Erlenmeyer flasks, filtering flasks, reaction vessels, and sample containers
- Suitable for pharmaceutical QA/QC labs, biotech research, academic labs, and industrial testing environments
- Ensures contamination-free sampling, liquid transfer, fermentation work, and controlled laboratory operations
