| Technical Parameter | Specification Details |
|---|---|
| Product Name | Nomex Needle Felt |
| Main Material | Meta-Aramid Fiber |
| Structure | Needle-Punched Nonwoven Felt |
| Optional Reinforcement | Meta-Aramid Scrim |
| Common Surface Treatments | Heat Setting / Singeing / Calendaring / Polytetrafluoroethylene Coating / Membrane Lamination |
| Continuous Operating Temp. | Up to 204°C |
| Instant Maximum Temp. | Up to 250°C |
| Limiting Oxygen Index (LOI) | 28%–30% |
| Breaking Strength | ≥1000 N (Machine Direction) / ≥1100 N (Cross Direction) |
| Heat Shrinkage | ≤1% at 250°C |
Key Advantages
- ✓Excellent High Temperature Resistance: Formulated perfectly for stable and continuous high-temperature flue gas filtration.
- ✓Good Flame Resistance: Premium non-melting and inherently self-extinguishing material structure.
- ✓High Mechanical Strength: Guarantees highly stable performance even under heavy pulse jet cleaning conditions.
- ✓Good Dimensional Stability: Demonstrates exceptionally low shrinkage under elevated temperature environments.
- ✓Moderate Chemical Resistance: Highly resistant against low-concentration acids, alkalis, and generic hydrocarbons.
- ✓Environmentally Safe Material: Dependable eco-safe composition, widely adopted in demanding industrial and safety applications.
⚠️ Technical Application Notes & Limitations
- • Higher initial material sourcing investment compared to conventional standard Polyester filter media.
- • Limited strong alkali and oxidation resistance: extreme working environments may accelerate aging and reduce service life.
- • Pronounced moisture sensitivity: targeted surface treatment is highly recommended for stable operation under humid conditions.
- • Total abrasion resistance is heavily dependent on finish quality; untreated raw felt provides moderate wear resistance.
Typical Industrial Applications
Nomex needle felt serves as a highly robust and reliable filter bag material engineered for diverse baghouse and dust collection systems. It plays an indispensable role in maintaining high filtration standards across the following sectors:
01. Cement Industry: Cement kiln inlet and outlet dust collection systems.
02. Steel & Metallurgy: Blast furnace and converter furnace exhaust filtration systems.
03. Coal-Fired Power Plants: Boiler flue gas filtration systems.
04. Asphalt Mixing Plants: High-temperature dust collection systems.
05. Carbon Black & Chemical: Fine particulate and corrosive gas filtration systems.
06. Non-Ferrous Smelting: High-temperature metal dust collection systems.
07. Industrial Dust Collectors: Filter bag material for baghouse systems.
