Commonly known as Teflon® filter bags, which are made from PTFE, short for polytetrafluoroethylene. PTFE is a high-performance synthetic polymer brimming with exceptional properties. In addition to being hydrophobic, meaning it repels water, PTFE is renowned for its chemical resistance, non-stick surface, high-temperature tolerance, and low friction coefficient. These outstanding characteristics make PTFE filter bags an ideal choice for various demanding filtration applications. As a filter media, it boasts the following attributes:
- High Filtration Efficiency - The microscopic pores in the PTFE material create a vast surface area that effectively captures particles, even those as minuscule as submicron size. This results in the bags achieving extraordinary filtration efficiencies, often exceeding 99% or more, which is vital for applications requiring stringent air quality standards.
- Chemically Inert - PTFE materials exhibit a high resistance to a wide array of corrosive chemicals, making them perfect for filtration applications involving aggressive gases. This chemical resistance ensures extended bag life and reduces the risk of failure or degradation.
- Excellent Thermal Stability - PTFE materials maintain exceptional performance even at extreme temperatures. With a continuous operating temperature of 240°C (464°F), Teflon filter bags are ideally suited for high-temperature applications, such as those in industrial furnaces or incinerators.
- Low Friction Coefficient - PTFE filter bags feature superior dust cake release properties. The low surface energy of PTFE prevents dust particles from adhering to the bag's surface, facilitating easier cleaning and reducing the need for frequent replacements. This results in consistent filtration performance and lowered maintenance costs.
- Excellent Hydrolysis Resistance - PTFE is renowned for its water-repellent characteristics, making it an excellent material for moisture-prone applications.
- Excellent Oxidation Resistance - PTFE's high resistance to oxidation ensures the longevity and durability of the filter bags in environments with high moist heat.
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In addition to these filtration characteristics, PTFE filter bags also offer numerous other advantages, such as:
- Long Service Life- PTFE filter bags offer exceptional durability, even in harsh operating conditions, leading to substantial cost savings over time.
- Easy to Clean and Maintain- PTFE filter bags are designed for ease of cleaning and maintenance, reducing downtime and enhancing productivity.
- Lower Energy Consumption - The enhanced cleaning efficiency of Teflon filter bags helps minimize the overall pressure drop across the filter media, which improves the efficiency and energy consumption of the dust collection system.
| Characteristics |
Rating |
| Fiber Content |
100% Virgin PTFE |
| Weight |
750g/m² (22.12oz/yd²) |
| Thickness |
1.0mm (0.039in) |
| Fabric Construction |
Needlefelt |
| Continuous Operating Temperature |
240°C (464°F) |
| Maximum Surge Temperature |
260°C (500°F) |
| Abrasion Resistance |
Excellent |
| Acid Resistance |
Excellent |
| Alkali Resistance |
Excellent |
| Moist Heat Resistant |
Excellent |
| Energy Absorbsion |
Good |
| Filtration Property |
Fair |
| Oxygen (15%+) |
Excellent |
Professional Equipment
Aokai is committed to delivering innovative solutions to its valued customers across diverse market segments. We continuously strive for improvement and innovation in automation and digitalization within production, after-sales, office, warehousing, and more, to provide higher performance products and more secure services.
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Perfect testing equipment and skilled technicians lay a solid foundation for projects such as working condition analysis, filter bag material selection, filter bag testing, flue gas testing and analysis, filter bag life prediction, and more, ensuring seamless production.
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