Felt filter bags are a kind of filter material widely used in liquid or gas filtration, especially in industrial dust removal, liquid filtration and air purification. They are made of various types of non-woven fabrics (such as polyester, polypropylene, nylon, aramid, etc.), with excellent filtering effect, able to capture particles, dust, oil and other pollutants. Filmia® high-performance needle felt filter bags are suitable for various industrial filtration applications for air, liquid and gas, which can effectively improve the filtration effect, extend the service life of the equipment and reduce maintenance costs.
Materials and Performance
| Material | Characteristics | Performance | Applications |
|---|---|---|---|
| Polyester (PET) | 1.Commonly used for medium temperature applications. 2.Good mechanical strength. 3.Good chemical resistance to weak acids and alkalis. | 1.Good for dust filtration . 2.Suitable for temperatures up to 150°C. | 1.Air filtration in cement, steel, and power plants. 2.Dust collection systems. |
| Polypropylene (PP) | 1.Good resistance to acids, alkalis, and organic solvents. 2.Lightweight and cost-effective. | 1.Suitable for low-temperature applications 2.Best for liquid filtration | 1.Water filtration. 2.Food and beverage processing. 3.Chemical filtration. |
| Nylon (PA) | 1.High tensile strength. High abrasion resistance. 3.Good chemical resistance to acids and alkalis. | 1.Suitable for temperatures up to 130°C. 2.High filtering efficiency for fine particles. | 1.Dust collection systems. 2.Air filtration in general industries. |
| Aramid (Nomex) | 1.Excellent high-temperature resistance. 2.Strong and durable . 2.Good resistance to acidic environments. | 1.Suitable for temperatures up to 200°C. 2.Ideal for heavy-duty industrial filtration. | 1.High-temperature environments. 2.Power plants. 3.Cement and steel industries. |
| PTFE (Teflon) | 1.Extremely chemically resistant . 2.Very low surface energy (anti-stick properties). 3.Can withstand very high temperatures. | 1.Best for highly corrosive applications. 2.Efficient for filtering ultra-fine particles. | 1.Chemical processing. 2.Pharmaceutical industry. 3.Food processing. |
| Glass Fiber | 1.Excellent high-temperature and chemical resistance. 2.Extremely durable. 3.Can withstand very high filtration pressures. | 1.Suitable for extreme temperature environments up to 250°C. 2.Good for fine particulate filtration. | 1.High-temperature industrial processes. 2.Air filtration in steel, cement, and incineration. |
| PPS (Polyphenylene Sulfide) | 1.Excellent resistance to heat, oxidation, and chemical attack. 2.Strong mechanical properties. Good for dust filtration. | 1.High-performance filtration at temperatures up to 190°C. 2.Suitable for fine dust collection. | 1.Heavy-duty industrial filtration. 2.Power generation. 3.Asphalt plants. |