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PPS Filter Cloth / Ryton Needle Felt / Polyphenylene Sulfite Needle Felt / Filter Cloth For PPS Filter Bags
What is PPS (Ryton) Needle Felt Filter Fabrics?
PPS (Ryton) needle felt filter fabrics are made out of PPS
(Polyphenylene Sulfide) fiber, special for high-temperature
baghouse filter bags. The PPS (Polyphenylene Sulfide) fiber is a
high-performance fiber. It has excellent characteristics such as
high-temperature resistance, hydrolysis resistance, acid and alkali
resistance, abrasion resistance, flame retardancy, and good
mechanical strength.
Advantages of PPS (Ryton) Needle Felt Filter Fabrics
1. High-temperature resistance, good thermal stability, continuous
working temperature < 190℃, instantaneous working temperature
200℃, melting point is 285℃. 170 ~ 190 ℃ is the best working
temperature of PPS needle felt filter media. Under 190 ℃, the
breaking strength in warp and weft securely decrease.
2. Good hydrolysis resistance only decomposes in strong oxidants.
3. Excellent acid and alkali corrosion resistance, only after the
PTFE (polytetrafluoroethylene).
4. Excellent corrosion resistance, it’s good resistant to organic
acids, inorganic acids, oxidants, etc.
5. Excellent flame retardancy, LOI (Limited Oxygen Index) of PPS is
34, it’s a good flame retardant filter fabric.
Main Application of PPS (Ryton) Needle Felt Filter Fabrics:
Coal – Fired Boilers baghouses
Municipal Solid Waste Boilers
Waste incinerator
Calciners / Catalysts
Electric power plant
Iron and nonferrous Metal Industry
| Weight(gsm) | 500 | |
| Thickness(mm) | 1.8 | |
| Width(mm) | ≤2.2 m | |
| Finish treatment | Singeing, Calendaring, 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 | |
