air and gas filtration 0.22um hydrophobic PTFE pleated filter cartridge

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Quick Details
Place of Origin:
China (Mainland)
Brand Name:
Model Number:
Filter media:
Hydrophobic PTFE
Plastic skeleton:
Seal coil:
Silicone rubber
Filter precision:
0.2 μm
Cartridge diameter:
69 mm
End caps:
Maximum working temperature:
90°C, P=0.20 Mpa
Sterilization temperature:
121°C; 30 minutes
Company informations
Founded in 2004, Donguan Kinda Filtration Equipment Co., Ltd. is a hi-tech enterprise specializing in R&D, production, and sales of filtration membrane and relevant product, become a member of the Membrane Industry Association of China.Our raw materials are provided by domestic and overseas well known suppliers, which have been selected and testedrepeatedly before used. Membrane products applied to biomedicine and food & beverage are all FDA-approved and comply with safety testing requirements of the latest USP in relation to VI-121C biological reactivity of human tissues to plastics. Production process is strictly compliant with ISO9001 quality management standards and is implemented based on advanced analyzers to realize internal quality control that is stricter than that of factory deliveryOur main products include micro-pore membrane filters, air filters, and liquid filters and they are widely applied in bio-pharmacy, chemical industry, electronics, environmental protection, energy, and scientific experiment for purification, sterilization, separation, concentration, refinement, catalytic reaction, and biological reaction to gas and liquid. we provide the better filter cartridges for you.
Products discreption
 NWF series cartridges’ filter media is a hydrophobic PTFE membrane, applicable to pre-filtering of gas and solvent and sterilization. Its hydrophobicity is 3.75 times stronger than the erosion resistance capability of ordinary PVDF; thus, NWF cartridges are applicable to pre-filtering and precise filtration of gas and solvent sterilization. At present, they are widely applied in pharmacy, food, chemical industry, and electronics. NWF cartridges show excellent heat resistance, they can be repeatedly used in online steam sterilization or high-pressure disinfection. NWF cartridges also have high interception efficiency, high guarantee, and long service life

Key Features

Highly safe sterilization, ensuring 100% filter efficiency in humid environment during gas filter; liquid filter precision specific to 0.2μm; for gas filter, single layer: < Φ0.01μm; double layer: < 0.003μmΦ

Strong hydrophobicity, passing water intrusion test, avoiding residues due to the integrity of solvent wetting test

Single- or double-layer; large filter area; small pressure difference; large throughput; long service life

Excellent chemical compatibility; endurable to acid, alkali, and organic solvent

Cartridge independently numbered; production batch traceable

Passing 100% integrity test; quality safe and reliable

Product structure

1. Membrane raw material is imported from well known supplier
2. Support/core PP structure raw material is imported from South Korea Modern Times, process by ourself
3. Inside PP support layer is imported from USA Fiberweb
4. Package is thress layer comsite N6 bag vacuum packing
5. Have related raw material test reports and three party test reports

We believe the quality is the soul of an enterprise, and we only provide the high quality pleated filter cartridge to our customers, under the same quality with our peers, our price will be more competitive, With us your business will be in safe and your money will be in safe, we trust that our professional,  quality and service will give an edge over your competitors. 


Typical Applications

Pre-filtering gases of storage tanks, respirators, and ferment tanks; sterilization

Sterilization of solvents such as esters, alcohols, acids, and alkalis; particle filtering

Sterilization and filtering of compressed air or gases in medicine and food industries

Filter media
Hydrophobic PTFE
Plastic skeleton
Seal coil
Silicone rubber
Maximum working temperature
90°C, 0.20 Mpa
Sterilization temperature
121°C; 30 minutes
Maximum positive pressure difference
0.42 MPa, 25°C
Maximum negative pressure difference
0.21 MPa, 25°C
Filter precision
0.2 μm
Effective filter area
single-layered ≥ 0.6 /10"; double-layered: ≥ 0.5 /10"
Cartridge diameter
69 mm
<10 mg per 10 inch cartridge (Φ69)
< 0.25 EU/ml
Endurable to repeated steam sterilization (more than 50 times) in no-load state
Ordering information
Production line