Woven Fiberglass Filter Bag
Woven fiberglass filter bags provide outstanding performance in high-temperature and demanding industrial filtration processes. They excel in applications that require exceptional thermal stability, chemical resistance, and dimensional integrity. For environments where static electricity poses a significant risk, we recommend pairing these bags with our Industrial Anti Static Dust Filter Bag to mitigate dust explosion hazards. When constructing a complete and efficient filtration system, our Anti-static Dust Collector Bags are the ideal component. For applications demanding superior fine dust capture and surface filtration, a PTFE Membrane Filter Bag can be laminated onto the fiberglass substrate. This combination offers the strength of fiberglass with the release properties of a membrane. In contrast, a Nonwoven fabric filter Bag is typically used for different applications where depth filtration is the primary mechanism.
The Woven Fiberglass Filter Bag is engineered for longevity and reliability. Its construction from continuous filament fiberglass yarns, woven into a specific pattern, provides a robust filter media that resists stretching and distortion under high temperatures and fluctuating pressure conditions. This inherent stability ensures consistent filtration efficiency and a longer operational lifespan, reducing downtime and maintenance costs. The surface of the bag can be treated with various proprietary finishes, such as graphitic or silicone-based coatings, to enhance dust release properties and improve chemical resistance against acids and alkalis.
Key Technical Specifications of Woven Fiberglass Filter Bags
- Maximum Continuous Operating Temperature: 550°F (288°C)
- Peak Instantaneous Temperature: 600°F (316°C)
- Fabric Weight: Ranges from 14 oz/yd² to 45 oz/yd²
- Thread Count: Customizable weaves for specific airflow and efficiency requirements
- Finish: Available with Graf-A, Silicone, or Teflon B treatments
- Air Permeability: Typically 20 - 90 CFM/ft²
Performance Comparison Table
| Property | Standard Woven Fiberglass | With PTFE Membrane Lamination | With Silicone Coating |
|---|---|---|---|
| Filtration Efficiency | High (Surface Loading) | Very High (Surface Filtration) | High (Surface Loading) |
| Dust Cake Release | Good | Excellent | Very Good |
| Chemical Resistance | Excellent (except fluorides & strong alkalis) | Excellent | Enhanced Acid Resistance |
| Typical Pressure Drop | Medium | Low (after cake formation) | Medium |
| Primary Application | Cement, Asphalt, Metal Processing | Carbon Black, Pharmaceutical, Fine Chemicals | Incinerators, Boilers, Acidic Environments |
Common Weave Patterns and Characteristics
| Weave Pattern | Fabric Stability | Air Permeability | Surface Texture |
|---|---|---|---|
| Plain Weave | Excellent | Lower | Smooth |
| Twill Weave | Very Good | Medium | Diagonal Pattern |
| Satin Weave | Good | Higher | Very Smooth |
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