In normal temperature circumstance(under 150 C), the polyester needle felt will satisfy the bag filter systems, but if the temperature on the high side, such as tail gas/fume/dust from metallurgical plant, carbon black plant, iron works(blast furnace gas), cement plant (tail gas from vertical kiln), petroleum fumes from mixing round the beton and asphaltum, coal fired boiler, etc. The normal filter method won’t work, so sometimes we choose the Aramid filter fabric (Nomex filter, Nomex fabric, Nomex felt, Aramid fabric).
Description
Physical and Chemical Properties of Aramid Filter Cloth :(Customization Of Feature And Size)
| Weight（gsm） | 530 | ||
| Thickness(mm) | 0.9 | ||
| Width(mm) | ≤2.2m | ||
| Finish treatment | Singeing, Calendering, Heat setting | ||
| Air permeability(L/m2.s) | 16 | ||
| Tensile strength(N/5cm) | warp | 4200 | |
| weft | 3800 | ||
| Tensile elongation(%) | warp | 40 | |
| weft | 18 | ||
| Heat shrinkage(%) | warp | ≤1.5 | |
| weft | ≤1.0 | ||
| Temperature(°C/°F) | Continue | .204/399.2 | |
| Instant | 240/464 | ||
| Anti-acid | Good | ||
| Anti-alkali | Good | ||
| Anti-abrasion | Excellent | ||
| hydrolysis stability | Good | ||