PPS filter bag is a filter material made of polyphenylene sulfide (PPS) fiber and manufactured and processed according to other high-temperature resistant filter felt production processes. It is one of the main varieties of high-temperature-resistant filter materials. PPS needle-punched filter media has excellent performance in the following applications. PPS is also called polyphenylene sulfide fiber. PPS filter is a new type of high temperature resistant fiber developed in the United States and introduced to the market in 1983. The physical properties of organic fibers are significantly better than inorganic fibers. Polyphenylene sulfide fiber is another high-functional fiber among high-temperature resistant organic fibers in recent years. PPS filter bag not only can withstand high temperature but also has the unparalleled excellent corrosion resistance of other high-temperature resistant fibers.
Our capacity: 20000 per month (standard product)
Diameter & Length: Accept customization
Optional process: Sewing or hot welding
Filtration precision: ≤30mg/m³ (laminating PTFE film, ≤5mg/m³)
Area weight (g/m²): 350~700
Temperature resistance: up to 200℃ (392℉)
Finish-treatment: Calendering, Heat setting, Singeing
Description
The main advantages and features:
- To increase system filtration capacity by 50-150% as needed without major changes to the dust collectors ;
- System cleaning efficiency markedly increased with the effective increase of bag to bag distance;
- Bag life extended due to significant reduction of fatigue damage to the bags due to bag to cage impact.
Application of PPS(Ryton) Filter Bag:
PPS often used in coal-fired boilers, but also for waste incinerator, coke oven, kiln, chemical drying process of flue gas purification process. In carbon black, powder collection, pneumatic conveying, chemical, cement plants, power plants and so on.
Notice:Common brand of PPS include Ryton® and Procon® and belong to Philip Company.
Features of PPS(Ryton) Filter Bag:
The acid and alkali resistance is Excellent. Meanwhile, PPS fiber does not burn, neither does it support burning. The temperature resistance is up to 200℃ (392℉). The resistance to oxidation is poor. So the working environment requires the oxygen content less than 14%（Vol.), and the oxynitride content is less than 600mg/Nm³. The higher oxygen contents the lower working temperature.
Physical properties:
| Air permeability(L/m2.s) @200pa | Tensile strength(N/5cm) | Temperature(℃) | ||
| warp | weft | continue | instant | |
| 150~300 | 900 | 1100 | 190 | 200 |
Chemical properties:
| Acid Resistance | Alkali Resistance | Hydrolytic Resistance | Oxidation Resistance | Abrasion resistance |
| Excellent | Excellent | Excellent | Poor | Good |
The outstanding advantages of PPS filter felt bag made of polyphenylene sulfide fiber are shown in the following aspects:
1. Good temperature resistance. Melting point is 285℃, continuous use temperature is 190℃, instant use temperature is 230℃.
2. Polyphenylene sulfide fiber with excellent corrosion resistance is superior to Nomex Conex and Kermel fiber in terms of resistance to organic acid, inorganic acid, acid and oxidant.
3. The extreme oxygen index (LDI) of the excellent flame-retardant polyphenylene sulfide fiber is 34-35, and the fiber is a non-combustible substance. Polyphenylene sulfide fiber needle punched felt not only has high temperature resistance but also has unique corrosion resistance. It is widely used in smelting, chemical, building materials, thermal power, waste incinerators, coal-fired boilers and other industries under high temperature and harsh working conditions. It is a high-quality, high-efficiency, high-temperature-resistant filter material.
PPS filter felt bag product has a smooth surface and good air permeability, which reduces the labor intensity of dust collection bag cleaning dust during use.