Polyester Filter Bags (PET Filter Bags) are industrial filtration materials made from high-quality polyester fiber (PET). They feature high strength, wear resistance, acid and alkali resistance (in weak acid/alkali environments), and hydrolysis resistance, making them widely used in dust filtration, air purification, and solid-liquid separation.
Key Features
Temperature Resistance: Continuous operating temperature ≤130°C, short-term exposure up to 150°C (subject to working conditions).
Filtration Precision: Customizable from 1μm to 100μm to meet different particle filtration needs.
High Filtration Efficiency: Smooth surface for easy dust release, with filtration efficiency exceeding 99.5% (varies by weight and process).
Chemical Resistance: Resistant to weak acids, weak alkalis, and most organic solvents, but prone to degradation in strong acids (e.g., concentrated sulfuric acid) or alkalis.
Mechanical Strength: High tensile and abrasion resistance, suitable for high airflow impact environments.
Eco-Friendly: Reusable and washable, reducing replacement costs.
Applications
- Industrial Dust Collection: Cement, metallurgy, chemical, and food processing industries.
- Liquid Filtration: Chemical wastewater, oil filtration, pigment suspension separation, etc.
- Air Purification: HVAC systems, cleanrooms, and controlled environments.
Technical Specifications
Parameter | Value |
Material | Polyester Fiber (PET) |
Weight | 150–600 g/m² (customizable) |
Air Permeability | 5–20 m³/m²/min (@200Pa) |
Tensile Strength | Warp ≥800N/5cm, Weft ≥700N/5cm |
Post-Treatment | Heat setting, singeing, PTFE coating (optional) |
Product Specifications
Dimensions: Customizable (common standard: Ø180mm × 1000mm).
Connection Types: Snap ring, flange, hanging loop, etc.
Filtration Method: Surface filtration (membrane-coated) or depth filtration (needle-punched).
Usage Guidelines
Before Installation: Inspect for damage and ensure a tight seal with the tube sheet.
During Operation: Control temperature and humidity to avoid condensation or overheating.
Cleaning: Use compressed air backflushing or neutral detergents; avoid strong acids/alkalis.
Replacement Criteria: Replace when pressure drop increases persistently or visible damage occurs.
Storage Conditions
Store in a cool, dry place away from sunlight and chemicals.
Warranty & Support
Standard 1-year warranty (excludes misuse or extreme conditions).
Customization services available (material blends, sizes, precision, etc.).
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