PPS Needle Felt Filter Bag

PPS Needle Felt Filter Bag
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The PPS needle felt filter bag is known for its excellent temperature resistance, high strength, chemical resistance, long service life and excellent filtration performance, even under harsh environments. The PPS filter bag is ideally suited to low oxygen environments, and features an outstanding filtration performance in areas where other filters do not perform well. With an affordable price and high quality, the PPS filter bag is an ideal alternative to Metamax filter sock bags.

Properties of the PPS Filtration Bag 1. Our filter sock bag has a continuous service temperature of 190°C, a surge temperature of 232°C, a melting point at 285°C and a limiting oxygen index of 34-35.
2. It is applicable to environments with an oxygen content lower than 15%.
3. A high resistance to acid and alkaline contributes to the extensive usage of these filtration bags for air purification of flue gas with sulfide or sulfur oxides.
4. These filter bags are also ideal for humid gas ducts.
5. Under a working temperature of 190-232°C, these bags achieve an air to cloth ratio of 5:1 and at times, 6:1.
6. An excellent thermal plasticity makes our PPC filter bag ideal for thermal filtration.

Practical Usage The PPS needle felt filter bag is one of our most popular filtration products and has found a wide array of uses in coal fired boilers, waste incinerators and power plants. Most often they are used for dust collection and powder removal. According to actual working conditions, Filtertex can add a number of additional treatments to the bag, making them waterproof, oil repellent, and giving them a PTFE coating.

Detailed Information of PPS Filter Bag

Material PPS PPS fiber scrim PPS glass fiber scrim
Weight (g/m2) 450 500 550 >800
Thickness (mm) 1.6 1.8 1.9 2.0
Air permeability(L/s/m2) 150
18
200
15
250
12
200~300
8-15
Breaking strength (N/5×20cm) Warp >1150 >1200 >1200 >2000
Weft >1200 >1300 >1400 >2000
Elongation at break (%) Warp < 30 < 30 < 30 < 10
Weft < 30 < 30 < 30 < 10
Breaking pressure (Mpa/min) 2.7 2.60 2.45 3.10
Continuous service temperature (℃) ≤190 ≤190
Surge temperature (℃) 232 232
Acid resistance Excellent Excellent
Alkaline resistance Excellent Excellent
Abrasion resistance Excellent Excellent
Hydrolytic stability Excellent Excellent
Post processing High temperature pressing, calendering, singeing Calendering ,singeing
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