Providing high-efficiency filtration solutions for multiple industries.
PTFE Filter bag
A PTFE filter bag is the answer when nothing else survives. Made from needle-punched polytetrafluoroethylene felt, it handles a continuous 260°C with peaks to 300°C while resisting almost every acid, alkali, solvent and hydrolysis reaction found in industrial flue gas. Where PPS oxidises and fiberglass embrittles, PTFE simply keeps working.
PTFE Filter Bag— Technical Data：
| Filter Media | PTFE Needle Felt |
| Composition | PTFE fiber / PTFE scrim |
| Weight | 500 g/m² |
| Air Permeability | 80–100 m³/m²/min |
| Tensile Strength (N/5×20 cm) | Warp >1800 / Weft >1800 |
| Elongation (%) | Warp <30 / Weft <30 |
| Continuous Operating Temperature | ≤260°C (peak 300°C) |
| Filtration Velocity | 1.0–1.2 m/min |
| Finishing Treatment | PTFE impregnated, membrane laminated, or coated |