Hydrophobic PTFE Filter Cartridge NWF Series | Gas & Solvent Sterilization Filtration | PUNO Kinda Filtration
Short Description:
Product Overview
PUNO Kinda Filtration NWF series hydrophobic PTFE filter cartridge features premium hydrophobic PTFE membrane as the core filter media, engineered for gas pre-filtration, gas sterilization, solvent sterilization and particle filtration. With 3.75x stronger water erosion resistance than ordinary PVDF membranes, this filter cartridge excels in humid gas filtration scenarios and harsh chemical environments. It is widely used in pharmaceutical, food & beverage, chemical, and electronic industries, supporting repeated online steam sterilization and high-pressure disinfection with stable performance, high interception efficiency and long service life.
All NWF series cartridges are independently numbered for full production batch traceability, 100% integrity tested before delivery, and comply with USP biological reactivity Class VI plastics standards, ensuring the highest level of safety and reliability for industrial filtration applications.
Key Features
- High-efficiency Sterilization & Filtration: 100% filtration efficiency in humid gas environment; liquid filter rating down to 0.2μm, gas filter rating single layer <0.01μm, double layer <0.003μm; multiple removal ratings available (0.05-5.0μm) for diverse filtration needs
- Superior Hydrophobicity: Passes water intrusion test, avoids solvent wetting test residues, 3.75x stronger water erosion resistance than ordinary PVDF
- Flexible Structure & High Throughput: Single/double layer options; large effective filter area (single-layer ≥0.6/10″, double-layer ≥0.5/10″); small pressure difference, large throughput, extended service life
- Excellent Chemical Compatibility: Resistant to acids, alkalis and various organic solvents, adaptable to complex industrial filtration media
- Safe & Reliable Quality: 100% integrity tested; USP Class VI plastics certified; filtrate <10mg per 10 inch (69mm) cartridge; endotoxin <0.25 EU/ml
- Durable Sterilization Performance: Withstands over 50 times of repeated steam sterilization under no-load state (121°C, 30mins)
- Traceable Production: Each cartridge is independently numbered, full production batch traceability for quality control
- Stable Sealing: Melting seal method, no medium leakage, reliable filtration effect
Typical Applications
- Pre-filtration and sterilization of gases for storage tanks, respirators and ferment tanks
- Sterilization and particle filtration of organic/inorganic solvents (esters, alcohols, acids, alkalis, etc.)
- Sterilization and filtration of compressed air and various process gases in pharmaceutical industry
- High-purity gas/solvent filtration in food & beverage production (meets food-grade safety standards)
- Chemical industry raw material and solvent filtration, anti-corrosion gas filtration
- Electronic industry high-purity gas and solvent purification filtration
Material Construction
- Filter medium: Hydrophobic PTFE membrane
- Support/drainage layer: Polypropylene (PP)
- Core and cage: Polypropylene (PP)
- Seal method: Melting seal
- O-rings: Customizable (Silicone rubber, EPDM, NBR, Fluorine rubber – see ordering information)
Operating Conditions
- Maximum working temperature: 90°C @ 0.20 Mpa
- Standard steam sterilization condition: 121°C for 30 minutes
- Maximum positive pressure difference: 0.42 MPa @ 25°C
- Maximum negative pressure difference: 0.21 MPa @ 25°C
Key Specification
| Parameter | Details |
|---|---|
| Removal Rating | 0.05/0.1/0.2/0.45/0.8/1.0/3.0/5.0 μm |
| Effective Filter Area | Single-layer: ≥0.6 m²/10″; Double-layer: ≥0.5 m²/10″ |
| Outer Diameter | 69 mm, 83 mm, 130 mm |
| Length Options | 5”, 10”, 20”, 30”, 40” |
| Filtrate | <10 mg per 10 inch (69mm) cartridge |
| Endotoxin | < 0.25 EU/ml |
| Steam Sterilization Resistance | >50 times (no-load state) |
| USP Certification | Biological reactivity Class VI plastics |
Customizable specifications available for special industrial needs – contact our sales team for details.
Contact Us
For product quotation, technical consultation, customized solutions or sample requests, please fill in the inquiry form below or contact us via email/phone. Our professional team will reply to you within 24 hours!
- Email: kinda1@puno-filter.com
- Phone: +86 18128566791
- WhatsApp/WeChat: +86 18128566791
