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| Engineered for harsh high-temperature corrosive environments, these 100% PPS needle felt filter bags operate continuously at 190°C with short-term tolerance up to 200°C. They resist strong acids, alkalis and hydrolysis, deliver >99.9% filtration efficiency for 0.3-10μm particles, and offer an 18-24 month service life in coal-fired boilers and waste incinerators. | |||||||||
Also known as Polyphenylene Sulfide Filter Bags and High-Temp Chemical Resistant Filter Bags, these industrial filtration solutions are constructed from 100% PPS needle felt through needle-punching technology. They are engineered for high-temperature environments with corrosive elements, addressing common filtration challenges such as premature filter failure in sulfur-containing flue gas and weak acid-alkali working conditions.
Parameter | Specification |
Continuous Operating Temperature | Up to 190°C (374°F) |
Short-Term Temperature Tolerance | Up to 200°C (392°F) |
Acid Resistance | pH 2–4 |
Alkali Resistance | pH 10–12 |
Filtration Efficiency (0.3–10μm Particles) | >99.9% |
Tear Strength | 250N/5cm |
Average Service Life (Coal-Fired Boilers) | 18–24 months |
Available Thickness | 800–1200g/m² |
Standard Diameter Range | 150–300mm |
Standard Length Range | 2000–6000mm |
Pleated designs provide twice the filter area of standard cylindrical bags. This configuration reduces the air-to-cloth ratio by 30%, which lowers fan energy requirements during commercial operations.
These filter bags capture fly ash in coal-fired boilers, withstanding sulfuric acid condensation from flue gas desulfurization systems. They maintain structural integrity during dew point crossings, preventing moisture-induced blinding that affects other high-temperature filter materials.
They filter acidic particulates from municipal solid waste and hazardous waste incinerators operating at 160–190°C. Their chemical resistance allows them to handle exposure to sulfur dioxide and chlorine gas present in incineration flue gas.
In cement manufacturing, the bags control kiln exhaust dust during clinker production, resisting alkaline dust and high process temperatures. In aluminum and copper smelting, they manage fumes containing corrosive metal oxides.
Over a 5-year lifespan, these PPS filter bags have a 30% lower total cost of ownership compared to PTFE filters. Their 18–24 month average service life in coal-fired boilers reduces maintenance frequency and associated downtime.
Compared to glass fiber bags used in similar applications, these PPS filter bags result in 95% fewer unplanned shutdowns. Their mechanical durability makes them suitable for high-velocity dust streams in power generation facilities.
The filter bags meet EPA MACT standards for hazardous air pollutant control in industrial emissions, supporting compliance with environmental regulations for commercial procurement projects.
Engineers evaluate flue gas composition, temperature cycles, and dust characteristics to recommend appropriate PPS thickness and configuration. Both pleated and standard designs are available, with custom dimensions to fit specific baghouse models. Optional ePTFE membrane lamination is offered for enhanced capture of particles smaller than 1μm.
All filter bags are manufactured in ISO 9001 certified facilities. Production samples undergo 500 thermal cycles (20°C to 190°C) and chemical immersion testing to validate performance. Each finished bag receives 100% pressure testing to ensure seam integrity at operating temperatures.
PPS filter bags can operate continuously at temperatures up to 190°C, with short-term tolerance up to 200°C. This outperforms polyester (135°C) and acrylic (140°C) filter materials.
Yes, these filter bags resist strong acids in the pH 2–4 range and alkalis in the pH 10–12 range, eliminating the need for material switching in variable industrial processes.
Customization options include thickness (800–1200g/m²), configuration (pleated or standard), dimensions (150–300mm diameter, 2000–6000mm length), and optional ePTFE membrane lamination.
For industrial clients seeking filtration solutions for high-temperature corrosive environments, our engineering team can provide tailored recommendations based on your specific process conditions. Contact us to discuss your commercial procurement needs.
