PPS Filter Bag
DARKO’s PPS filter bags are engineered from 100% pure PPS needle felt, offering exceptional resistance to acids, oxidation, and hydrolysis. Ideal for coal-fired boilers, waste incineration, and chemical processes, these bags operate continuously at 190°C (374°F) with peak resistance to 232°C (450°F), ensuring compliance with EPA, EU 2015/1189, and GB/T 6719 emission standards (emissions <20mg/m³).
- Superior Chemical Resistance
- Hydrolysis & Oxidation Resistance
- High-Temperature Stability
- Low Pressure Drop
- Cost-Effective
Industry-Leading PPS Filter Bag Manufacturer
As a global leader in industrial filtration solutions, DARKO brings over a decade of technical expertise to deliver ISO-certified high-performance PPS filter bags to clients across power generation, waste incineration, chemical, and metallurgical industries in more than 30 countries. Our advanced PPS needle felt filter bags deliver 99.95% filtration efficiency for acidic flue gases, double the lifespan of conventional polyester bags in harsh conditions, and offer customized solutions – providing reliable dust control that combines chemical resistance with operational cost savings.
Reliable Material Transportation Solutions
Ultimate chemical resistance (handles all acids/alkalis) with 260°C continuous operation.
Low-pressure operation (<800Pa) with 240°C rating, perfect for sticky/humid dust.
Cost-effective workhorse for temperatures below 130°C with 99.5% efficiency.
- Technical Specifications
- PPS vs. Competitive Materials
- Top Applications
| Parameter | Specification |
|---|---|
| Material | 100% PPS needle felt (PTFE laminated optional) |
| Weight | 500-750 g/m² (customizable) |
| Air Permeability | 10-15 m³/m²/min (@200Pa) |
| Max Continuous Temp | 190°C (374°F) |
| Peak Temp | 232°C (450°F) for ≤30 minutes |
| Filtration Efficiency | 99.95% @ PM2.5 |
| Surface Treatments | Calendaring, singeing, water/oil repellency (optional) |
| Feature | PPS Bags | PTFE Bags | Fiberglass Bags |
|---|---|---|---|
| Acid Resistance | ★★★★★ (pH 2-9) | ★★★★☆ | ★★☆☆☆ |
| Max Temp | 190°C | 260°C | 280°C |
| Hydrolysis Resistance | ★★★★★ | ★★★★★ | ★★☆☆☆ |
| Cost Efficiency | ★★★★★ | ★★★☆☆ | ★★★★☆ |
| Best For | Acidic/humid gas | Extreme temps/chemicals | Ultra-high temps |
✔ Power Plants – Coal/biomass boiler flue gas (baghouse systems)
✔ Waste Incineration – HCl/SOx corrosion resistance (emissions ≤20mg/m³)
✔ Chemical Industry – Sulfuric acid mist, titanium dioxide collection
✔ Steel & Cement – Sintering, kiln, and dryer exhaust filtration
Key Advantages of PPS Filter Bags
PPS filter bags offer exceptional resistance to high temperatures (up to 190°C continuous), acids, and hydrolysis, making them ideal for harsh industrial applications like coal-fired boilers and waste incineration. Their polyphenylene sulfide construction delivers reliable filtration efficiency (99.95% for PM2.5) in corrosive, high-moisture flue gases while providing 2-3X longer service life than standard polyester bags. With superior chemical stability against SOx/NOx and lower operating costs compared to PTFE alternatives, PPS bags deliver optimal performance for acidic gas filtration in power plants, chemical processing, and metallurgical operations.
Related Products
Why Choose PPS Filter Bags?
PPS (Polyphenylene Sulfide) filter bags are engineered for industries facing high temperatures, acidic gases, and moisture-laden flue gas. Here’s why they outperform alternatives:
✅ Key Advantages
✔ Unmatched Chemical Resistance – Withstands pH 2-9 environments, making them ideal for coal-fired boilers, waste incineration, and chemical plants handling SOx/NOx emissions
✔ Reliable High-Temp Operation – Continuous 190°C (374°F) performance with peak resistance to 232°C (450°F)
✔ Moisture & Oxidation Proof – Maintains integrity in high-humidity, oxygen-rich flue gas where polyester fails
✔ Extended Service Life – Delivers 2-3X longer lifespan than standard bags in corrosive conditions
✔ Cost-Efficient Performance – Provides PTFE-level chemical resistance at significantly lower cost
🏭 Where PPS Excels
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Power Generation: Coal/biomass boiler flue gas filtration
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Waste-to-Energy: HCl/SOx removal in incineration plants
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Chemical Processing: Sulfuric acid mist and titanium dioxide collection
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Heavy Industry: Steel sintering and cement kiln exhaust systems
Yes! PPS is the industry standard for waste-to-energy plants, offering unmatched HCl/SOx resistance. Pair with PTFE membrane for sub-micron filtration.
24-36 months in coal boilers (160-180°C); 18-24 months in high-corrosion incineration.
For oily mist, moisture, or PM1.0 capture, PTFE-coated PPS boosts efficiency and reduces cleaning cycles.