Fiberglass filter bags are woven from alkali-free fiberglass yarn through specialized processes, offering exceptional high-temperature resistance and corrosion resistance. They are designed for demanding applications in high-temperature flue gas filtration, chemical, metallurgical, power, and other industries.
Key Features of Fiberglass Filter Bag
Superior High-Temperature Resistance: Continuous operating temperature up to 260°C, with short-term tolerance up to 300°C.
Excellent Chemical Stability: Resistant to acids and alkalis (except hydrofluoric acid and strong alkalis), with outstanding corrosion resistance.
High Dimensional Stability: Low thermal shrinkage, maintaining structural integrity under high temperatures.
High Filtration Efficiency: Effectively captures PM2.5 and larger particles, with emission concentrations as low as 10mg/Nm³.
Optimized Dust Release: Smooth surface facilitates easy dust removal, making it ideal for pulse-jet cleaning systems.
Applications
- Cement Industry: High-temperature flue gas filtration (kiln inlet/outlet).
- Steel Industry: Blast furnace gas and converter gas purification.
- Power Industry: Flue gas treatment in coal-fired boilers.
- Chemical Industry: Corrosive gas filtration in sulfuric acid and fertilizer production.
- Waste Incineration: High-temperature dust control.
Technical Specifications
Parameter | Value |
Material | Alkali-free fiberglass (E-glass) |
Weight | 500–1000 g/m² (customizable) |
Air Permeability | 10–20 m³/m²/min |
Tensile Strength | Warp direction >1200 N/5cm |
Max. Operating Temp. | ≤260°C |
Peak Temperature | 300°C (≤30 minutes) |
Filtration Grade | 0.5–5 μm |
Fiberglass filter bag’s Specifications
- Dimensions: Standard diameter φ120–160mm, length 2–10m (custom sizes available).
- Connection Types: Snap ring, flange, clamp, etc.
- Surface Treatment: Optional PTFE coating or lamination for enhanced chemical resistance and filtration efficiency.
Usage Guidelines
Pre-Installation: Avoid sharp bending to prevent fiber damage.
Operation: Strictly control flue gas temperature to avoid exceeding limits.
Chemical Exposure: Not suitable for hydrofluoric acid (HF) or strong alkali (pH >10) unless specially treated.
Cleaning Method: Recommended low-pressure pulse-jet cleaning (0.3–0.5 MPa).
Storage & Transportation
Store in a dry, ventilated area; avoid moisture and heavy stacking.
During transport, use moisture-proof packaging; no hooks or rough handling.
Certifications
Complies with?GB/T 25041-2010?(Fiberglass Filter Media Standard).
Certified under?ISO 9001?Quality Management System.
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