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Shenzhen Zhong Jian South Environment Co., Ltd.
Shenzhen Zhong Jian South Environment Co., Ltd.
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Non-Woven Fabric Primary Pre-Filters For 5μM Particles Purification

Ürün Ayrıntıları

Menşe yeri: ÇİN

Marka adı: ZJNF

Ödeme ve Nakliye Şartları

Min sipariş miktarı: 1

Fiyat: negotiate

Ambalaj bilgileri: kontrplak/ahşap paket

Teslim süresi: 18 gün

Ödeme koşulları: TT LC PayPal Kredi Kartı

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Özellikler
Vurgulamak:

Non-woven fabric air pre filter

,

5μm particle air pre filter

,

Primary pre filter with warranty

Malzeme:
Polyester
Uygulama:
Hava filtreleme
Kurulum:
Kolay
Rezistans:
6-15Pa
Ambalajlama:
Karton kutu
Boyut:
Özelleştirilebilir
Malzeme:
Polyester
Uygulama:
Hava filtreleme
Kurulum:
Kolay
Rezistans:
6-15Pa
Ambalajlama:
Karton kutu
Boyut:
Özelleştirilebilir
Açıklama
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

  1. By Filtration Grade
    • G1-G4‌: European standard EN779 classification, with G4 achieving 70%-90% efficiency (5μm).
  2. 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).
  3. 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

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

Typical Applications

  • HVAC Systems‌: Pre-filtration for downstream protection.
  • Cleanrooms‌: Air return filtration or pre-stage for HEPA filters.
  • Industrial‌: Air compressor or gas turbine intake pre-filtration.
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