Non-Woven Fabric Primary Pre-Filters For 5μM Particles Purification

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Tempat asal: CINA

Nama merek: ZJNF

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                                                                                                                                                                                                                                                                                                                                                                                                                                    Non-woven fabric air pre filter, 5μm particle air pre filter, Primary pre filter with warranty
                                                      

Bahan:	Poliester	Aplikasi:	Filtrasi udara
Instalasi:	Mudah	Perlawanan:	6-15Pa
Kemasan:	Kotak karton	Ukuran:	Dapat disesuaikan

Bahan:	Poliester
Aplikasi:	Filtrasi udara
Instalasi:	Mudah
Perlawanan:	6-15Pa
Kemasan:	Kotak karton
Ukuran:	Dapat disesuaikan

Deskripsi

Non-Woven Fabric Primary Pre-Filters For 5μM Particles Purification

Primary Pre-Filters‌

Primary pre-filters serve as the first line of defense in air purification systems, primarily capturing large particles ≥5μm (such as dust, pollen, and hair) to protect downstream medium- and high-efficiency filters, extending their lifespan. Their core functions include:

‌Coarse Filtration‌: Made from materials like non-woven fabric, nylon mesh, or metal mesh, with filtration efficiency of 30%-90% (for 5μm particles).
‌System Protection‌: Reduces load on medium/high-efficiency filters, lowering maintenance costs.

‌Types & Structure‌

‌By Filtration Grade‌
- ‌G1-G4‌: European standard EN779 classification, with G4 achieving 70%-90% efficiency (5μm).
‌By Filter Material‌
- ‌Reusable‌: Metal mesh or nylon mesh (e.g., aluminum-frame pre-filters).
- ‌Disposable‌: Non-woven fabric or synthetic fiber (e.g., flat panel pre-filters).
‌By Design‌
- ‌Flat Panel‌: Low cost, suitable for HVAC systems.
- ‌Pleated‌: Larger filtration area, higher dust holding capacity.
- ‌Pocket‌: Higher efficiency, ideal for pre-filtration stages.

‌Key Parameters & Selection‌

‌Parameter‌	‌Typical Value‌	‌Application‌
‌Filtration Efficiency‌	G4: 70%-90% (5μm)	Office buildings, shopping malls
‌Initial Resistance‌	30-50Pa	Industrial plants, food processing
‌Dust Holding Capacity‌	High (reusable types perform better)	High-dust environments (e.g., painting workshops)
‌Temperature Resistance‌	-40℃~70℃ (special models up to 250℃)	High-temperature industrial settings

‌Installation & Maintenance‌

‌Installation Notes‌
- Match system airflow (recommended velocity: 1-3 m/s).
- Check sealing (e.g., double-lip seal design).
‌Maintenance Schedule‌
- Commercial spaces: 3-6 months; industrial: 1-3 months.
- Replacement criteria: Pressure drop reaches 2-3× initial resistance or visible dust accumulation.