Commonly known as Teflon® filter bags, these are crafted from PTFE, the high-performance synthetic polymer known as polytetrafluoroethylene. PTFE boasts unique properties, including hydrophobicity, chemical resistance, non-stickiness, high-temperature tolerance, and a low friction coefficient. These exceptional traits make PTFE filter bags perfect for a vast array of filtration applications. As a filter media, it exhibits the following superior characteristics:
- High Filtration Efficiency - The microscopic pores in PTFE material provide an expansive surface area for capturing particles effectively, even those as minuscule as submicron size. This results in high filtration efficiencies, often surpassing 99%, which is essential for applications with stringent air quality regulations.
- Chemically Inert - PTFE materials exhibit high resistance to many corrosive chemicals, making them ideal for filtration applications involving aggressive gases. This chemical resistance extends bag life and reduces the risk of failure or degradation.
- Excellent Thermal Stability - PTFE materials can endure extreme temperatures without compromising filtration performance. With a continuous operating temperature of 240°C (464°F), these Teflon filter bags are perfect for high-temperature gas applications, such as in industrial furnaces or incinerators.
- Low Friction Coefficient - PTFE filter bags provide outstanding dust cake release properties. The low surface energy of PTFE prevents dust from adhering to the bag, enabling easier cleaning and reducing the frequency of replacements, thereby maintaining consistent filtration performance and cutting maintenance costs.
- Excellent Hydrolysis Resistance - PTFE is renowned for its water-repelling characteristics, making it an ideal material for applications where moisture is a concern.
- Excellent Oxidation Resistance - PTFE exhibits high resistance to oxidation, ensuring the longevity and durability of the filter bags even in high moisture heat environments.
Beyond these filtration capabilities, PTFE filter bags offer numerous additional advantages, such as:
- Long Service Life- PTFE filter bags demonstrate a long service life even under tough operating conditions, leading to significant cost savings over time.
- Easy to Clean and Maintain- These filter bags are easy to clean and maintain, which minimizes downtime and enhances productivity.
- Lower Energy Consumption - The enhanced cleaning efficiency of Teflon filter bags helps reduce the overall pressure drop across the filter media, improving the dust collection system's efficiency and energy consumption.
| 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 |
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