PPS Filter Bags

PPS (Polyphenylene Sulfide) filter bags are high-performance industrial filtration materials featured with excellent high-temperature resistance, chemical stability, and outstanding abrasion resistance. They maintain stable filtration performance under harsh working conditions, including persistent high temperatures, acidic and alkaline flue gas, and corrosive chemical environments.
Widely applied in coal-fired power plants, cement factories, waste incineration plants, chemical and metallurgical industries, PPS filter bags efficiently capture fine particulate matter and purify industrial flue gas. With low pressure drop, high dust removal efficiency and long service life, they serve as an ideal solution for industrial dust control and environmental emission reduction.

Product Description

Also called polyphenylene sulfide fiber bags or Ryton fiber bags, PPS filter bags deliver outstanding fiber properties compared with other high‑temp acid‑alkali resistant filter bags. Ideal for industrial processes requiring high temperature tolerance and chemical resistance, they remove dust, particulates and contaminants from air and process gas streams.

  • Material: Polyphenylene Sulfide needle‑punched felt
  • Bag rings: Stainless steel ring, plastic ring
  • Bag types: Round, flat, star‑pleated
  • Size: Custom diameter & length available
  • Fabrication: Sewing / hot‑welding
  • Optional treatments: Water‑oil repellent, PTFE membrane, PTFE impregnation
  • Surface finish: Calendering, heat‑setting, singeing

Main Characteristics of PPS Filter Bags
PPS is a high-performance thermoplastic resin material, boasting outstanding comprehensive properties including high mechanical strength, exceptional high-temperature resistance, superior chemical inertness, flame retardancy, excellent thermal stability and reliable electrical performance. These premium attributes enable PPS needle punch felt filter bags to adapt to complex and harsh industrial working conditions, outperforming conventional filter media.

Key Performance Advantages

High Temperature Resistance: PPS needle felt supports a continuous operating temperature of up to 190°C (374°F) and can withstand short-term peak temperatures as high as 230°C (446°F), ensuring stable filtration performance in high-temperature flue gas environments.
Excellent Chemical Resistance: The material features strong tolerance to acids, alkalis and various organic solvents. It remains structurally stable and functional in corrosive working scenarios, perfectly suited for harsh chemical industrial environments.
Superior Mechanical Strength & Dimensional Stability: PPS needle felt possesses high tensile strength and stable physical dimensions. It resists deformation and damage under long-term operating pressure, delivering reliable durability for rigorous industrial filtration applications.
Outstanding Hydrolysis Resistance: The filter media is highly resistant to hydrolysis, maintaining stable performance in humid and water vapor-containing working environments, and is well applicable for wet flue gas filtration conditions.

Application Benefits of PPS Filter Bags

Extended Service Lifespan: Benefiting from excellent high-temperature resistance, chemical corrosion resistance and mechanical durability, PPS filter bags effectively avoid premature aging and damage, achieving a far longer service life than ordinary filter bags.
High Filtration Efficiency: The optimized fiber structure enables the filter bags to accurately capture fine particulate pollutants, effectively purifying industrial exhaust gas and meeting strict environmental emission standards.
Long-term Cost-Effectiveness: Though the initial procurement cost is slightly higher than conventional filter materials, PPS filter bags require minimal maintenance and replacement thanks to their long service life and stable performance. They greatly reduce overall operational and replacement costs, delivering superior long-term economic benefits.

How FilterEXP Optimizes PPS Filter Bag Performance & System Efficiency

FilterEXP’s professional optimization solutions fully unlock the performance potential of PPS filter bags, comprehensively upgrading the overall efficiency and service life of dust removal systems without major modifications to existing dust collector equipment:
1. Boosts the overall filtration capacity of the dust removal system by 50%-150% on demand, realizing efficient capacity expansion with zero major equipment renovation.
2. Optimizes the spacing between filter bags, significantly improving the pulse cleaning effect and greatly enhancing the overall dust cleaning efficiency of the system.
3. Effectively reduces the collision and friction between filter bags and filter cages, alleviating fatigue damage to the bag body and further extending the service life of PPS filter bags.

Technical Specifications

Technical Item
Specification
Material Weight
500gsm
Thickness
1.8mm
Surface Finish
Singeing, Calendering, Heat Setting
Air Permeability
200-300 L/m²·s
Tensile Strength (Warp)
≥1100 N/5cm
Tensile Strength (Weft)
≥1500 N/5cm
Tensile Elongation (Warp)
≤15%
Tensile Elongation (Weft)
≤20%
Heat Shrinkage (Warp)
≤1.5%
Heat Shrinkage (Weft)
≤1.0%
Continuous Operating Temperature
190°C / 374°F
Instant Peak Temperature
220°C / 428°F
Acid Resistance
Good
Alkali Resistance
Excellent
Abrasion Resistance
Excellent
Hydrolysis Stability
Moderate

Custom Post-Treatments

We provide customized post-treatment solutions for PPS filter bags to suit varied and complex industrial operating conditions. These professional finishing processes effectively upgrade the filter bags’ filtration efficiency, wear resistance and environmental adaptability, catering to diverse dust removal and flue gas purification applications. Our available post-treatment options are as follows:
                                       
Anti-Static Treatment   Water & Oil Repellent Treatment       PTFE Membrane Treatment

Application of PPS Filter Bags

  • Power Plants: Filter flue gas and lower particulate emissions within coal‑fired power generation facilities.
  • Cement Industry: Handle dust and particle pollution from cement kilns and milling equipment.
  • Chemical Industry: Perform steadily under corrosive chemicals and high‑temperature process conditions.
  • Waste Incineration: Purify flue gas for waste‑to‑energy plants and manage exhaust outputs.
  • Metallurgy: Capture particulates generated during metal smelting and refining operations.

We Focus on Every Processing Detail

We precisely calculate and dimension filter cloth for each filter bag. Extra fabric allowance is reserved beyond nominal dimensions to ensure sufficient operational margin.

Appropriate matching accessories are selected and subjected to rigorous quality inspection prior to assembly.

Filter bags are patterned, cut and sewn on fully‑automatic production lines. For items requiring manual handling, fabrics are laid flat on work platforms with controlled tension to guarantee uniform flatness.

Production is executed in strict compliance with design drawings and standardized operating procedures. All on‑site staff follow safety protocols; smoking is strictly forbidden within production areas.