PPS (Polyphenylene Sulfide) needle-punched filter felt is a filter material with excellent performance in high temperature and corrosive environments. PPS is a special synthetic polymer that can maintain stability under high temperature and chemical corrosion conditions, so it is often used in flue gas purification and high temperature gas filtration in industrial fields.

  • Our capacity: 15000 square meter per day (standard PPS product).
  • Width: ≤2.2m.
  • Length: ≤100m.
  • Finish-treatment: Calendering, Heat setting, Singeing.

Learn more about PPS(Ryton) Filter Bag


Main features of PPS needle punched filter felt

  • High temperature resistance: PPS has excellent high temperature resistance and is able to work in high temperature environments, usually up to temperatures above 190°C (374°F).
  • Chemical stability: PPS material shows strong stability to a variety of chemical corrosive substances, so it is suitable for some filtering environments with corrosive gases or chemical substances.
  • Low hygroscopicity: PPS material has very low hygroscopicity and can maintain stable performance in humid environments.
  • Abrasion resistance: PPS needle-punched filter felt is relatively wear-resistant and suitable for industrial filtration environments that require long-term use.
  • Good mechanical strength: PPS material has good mechanical strength to a certain extent, and can withstand certain tension and pressure during the filtration process.

PPS (Ryton) Needle Felt in Filmedia®

1. Excellent Anti-Acid And Anti-Alkali.
2. Anti-High Temperature:190-220°C/374-428°F.
3. High-efficiency filtration.
4. Suitable for the filtration of sulfur fumes or sulfur oxides in fuel.
5. Very easy to be oxidized in sunshine.
6. Suitable for high humidity, high concentration, and flue dust containing chemical ingredients.
7. Can be customized.

We now mainly have three categories of PPS woven fabrics

  • PPS filament, thickness 2.2-0.3mm, weight 1150-200g.
  • PPS short fiber, thickness 2.2-0.3mm, weight 1150-200g.
  • PPS monofilament, thickness 0.8-0.15mm, weight 550g-80g.

Physical and Chemical Properties of PPS (Ryton) Needle Felt: (Customization is accepted in terms of feature and size)

Weight(gsm) The three options mentioned above
Thickness(mm) The three options mentioned above
Width(m) The three options mentioned above
Finish treatment Singeing, Calendering, Heat setting
Air permeability(L/m2.s) 200-300
Tensile strength(N/5 cm) warp ≥1100
weft ≥1500
Tensile  elongation(%) warp ≤15
weft ≤20
Heat shrinkage(%) warp ≤1.5
weft ≤1.0
Temperature(°C/°F) Continue 190/374
Instant 220/428
Anti-acid Good
Anti-alkali Excellent
Anti-abrasion Excellent
Hydrolysis stability Middle

Option 2

We also supply a new material that can replace the PPS needle felt. It has the characteristics of the PPS needle felt, but the continued temperature can be up to 250℃. The following are the specification for the new products.

Weight(gsm) 810
Thickness(mm) 0.75
Air permeability(cm³/cm²/s) 2-4
Tensile strength(N/25mm) warp 2400
weft 2800
Temperature(°C/°F) Continue .260/500
Instant 300/572
Anti-acid Excellent
Anti-alkali Excellent


PPS needle-punched filter felt is often used in high-temperature flue gas purification equipment, coal power plants, cement plants, oil refineries, metallurgical industries and other fields that require gas filtration and particle separation in high-temperature and corrosive environments. Due to its special properties, it can effectively capture tiny particles and pollutants, ensuring a clean and safe production environment.

Services in Filmedia® 

  • We have a professional technical team to design according to customer requirements and ensure good performance.
  • The discharge meets the requirements, the initial resistance is low, and it is not easy to be blocked.
  • Provides operation suggestions, is not easy to break and is durable.
  • All sizes and finishes available, immediate delivery.
  • Aftersale service provided.