Hydrophobic PTFE Filter Cartridge for Air & Gas Filtration System

High-Purity Air & Gas Filtration | Chemical Resistance | Sterilizable | Long Service Life

Hydrophobic PTFE Filter Cartridge for Air & Gas Filtration

Hydrophobic PTFE Filter Cartridge

Our hydrophobic PTFE filter cartridges are engineered to deliver maximum filtration efficiency and long-term operational reliability. They are ideal for demanding environments where standard polypropylene or PVDF cartridges may not perform adequately.

Key Features

✔ 100% hydrophobic PTFE membrane for superior moisture resistance
✔ High filtration efficiency, absolute-rated from 0.1 μm to 1.0 μm
✔ Excellent chemical compatibility with aggressive gases and aerosols
✔ High-temperature resistance suitable for repeated steam-in-place (SIP) cycles
✔ Integrity-testable by bubble point and aerosol challenge testing
✔ Low pressure drop due to optimized pleat design
✔ Long service life thanks to strong mechanical and chemical durability
✔ Available in various lengths: 5″, 10″, 20″, 30″, 40″
✔ Multiple end cap configurations to fit all standard housings
✔ Food-grade and pharmaceutical-grade materials
✔ Manufactured in a cleanroom environment

Introduction to Hydrophobic PTFE Filter Cartridges for Air & Gas Filtration

Hydrophobic PTFE filter cartridges are the industry standard for critical air and gas filtration applications where moisture resistance, chemical stability, and high filtration efficiency are essential. PTFE (Polytetrafluoroethylene) membrane exhibits a naturally hydrophobic structure, meaning the membrane actively repels water and maintains airflow even in environments with high humidity or liquid aerosols.

These features make hydrophobic PTFE filter cartridges ideal for:

Sterile air filtration
Tank vent filtration
Fermentation air filtration
Gas sterilization
Compressed air purification
Solvent venting
Process air and vacuum pump exhaust

For industries that require guaranteed sterility, high particle retention efficiency, and resistance to aggressive chemicals, hydrophobic PTFE pleated cartridges offer unbeatable performance and long operational life.

At Econe Filtration, we manufacture high-performance Hydrophobic PTFE Pleated Filter Cartridges designed specifically for air, gas, and solvent filtration. Each cartridge delivers consistent flow rates, reliable integrity test results, and stable performance under demanding operating conditions.

What Makes PTFE the Best Choice for Air & Gas Filtration?

PTFE is widely recognized as one of the most chemically inert and thermally stable membrane materials available. Its hydrophobic surface prevents wetting and ensures that airflow remains uninterrupted even when exposed to water droplets or condensate.
Key properties of PTFE membrane include:
- Natural hydrophobicity — repels water and moisture
- Extremely low surface energy — prevents aerosol and moisture penetration
- Broad chemical compatibility — resistant to acids, alkalis, solvents, and oxidizers
- High temperature tolerance — suitable for steam sterilization
- High particle retention — filters 99.99%+ of airborne contaminants
- Long service life — membrane is resistant to fouling and degradation
These characteristics make PTFE cartridges a superior choice for challenging industrial and sterile applications.

Applications of Hydrophobic PTFE Filter Cartridges

PTFE pleated cartridges are specifically designed for critical air and gas filtration processes where system sterility and safety must be guaranteed.

5.1 Sterile Air Filtration

Used in pharmaceutical manufacturing, biotechnology labs, and fermentation systems to ensure no airborne contaminants enter critical processes.

5.2 Tank Vent Filtration

Prevents microbial contamination during breathing cycles of product tanks, CIP tanks, and storage vessels.

5.3 Gas Sterilization

Suitable for nitrogen, carbon dioxide, compressed air, and other process gases that must be delivered sterile.

5.4 Fermentation Air Supply

Ensures clean, bacteria-free air for fermentation in biotech, beverages, enzymes, and pharmaceutical production.

5.5 Compressed Air Purification

Removes particles, bacteria, and aerosols from industrial compressed air systems.

5.6 Solvent and Chemical Venting

Chemically resistant PTFE is ideal for venting aggressive solvents and corrosive chemical vapors.

5.7 Vacuum Pump Exhaust

Protects downstream processes and environments from contaminants released from vacuum pumps.

In all these applications, PTFE cartridges offer unmatched stability and reliability.

Technical Specifications

Item	Description
Membrane Material	Hydrophobic PTFE
Support Layers	Polypropylene (PP) or PTFE
Filtration Ratings	0.1, 0.2, 0.45, 1.0 μm
Length Options	5″ / 10″ / 20″ / 30″ / 40″
Outer Diameter	69 mm (standard)
Inner Core	Polypropylene, stainless steel optional
End Cap Types	DOE, 222/Fin, 226/Fin, 222/Flat, 226/Flat
Gasket/O-Ring	EPDM, Silicone, Viton, Teflon-encapsulated
Max Operating Temperature	90–120°C depending on configuration
Max Pressure	4 bar @ 25°C
Sterilization	Autoclave or SIP up to 121°C
Integrity Test	Bubble Point / Diffusion Flow

All cartridges are manufactured according to ISO9001 and FDA CFR Title 21 standard raw materials.

Our Quality Control for Hydrophobic PTFE Pleated Filter Cartridge Manufacturing

Our pleated filter cartridges are produced in ISO Class 8 cleanrooms to ensure contamination-free manufacturing and superior product purity.

Each filter cartridge undergoes rigorous quality control, including bubble point testing, integrity testing, and flow rate verification to ensure consistent performance and compliance with international standards.

We utilize advanced automated equipment for pleating, welding, and assembly processes. This ensures precise manufacturing, consistent quality, and high production efficiency while minimizing manual errors and contamination risks.

Why Choose Our Hydrophobic PTFE Filter Cartridge for Air & Gas Filtration?

6.1 Superior Hydrophobic Performance

The membrane maintains extremely low surface energy, ensuring it stays unwetted even in the presence of water droplets or mist.

6.2 Reliable Integrity Testing

Each cartridge undergoes:

Bubble point test
Diffusion flow test
Pressure-hold test
Visual inspection

This ensures high retention efficiency and compliance with sterile air standards.

6.3 High Chemical Resistance

PTFE is resistant to:

Strong acids
Strong alkalis
Organic solvents
Oxidizing agents
Corrosive vapors

This makes the cartridge suitable for the harshest gas filtration environments.

6.4 Cost-Effective Long-Term Operation

Thanks to its durability and low fouling tendency, PTFE cartridges deliver:

Fewer change-outs
Lower maintenance costs
Long service life in challenging systems

6.5 Universal Housing Compatibility

We provide all major end cap configurations for easy installation in any standard industrial filter housing.

7. Manufacturing Quality & Compliance

All filters are manufactured in our ISO-class cleanroom using FDA-compliant raw materials.

Quality Certifications:

ISO9001 quality management
FDA CFR Title 21 compliant materials
EU Food Contact Regulations
100% integrity tested before shipment

Strict quality control ensures consistent performance batch after batch.

8. Ordering Information

When placing an order, please specify the following details:

Cartridge length (5″, 10″, 20″, 30″, 40″)
Filtration rating (0.1 μm – 1.0 μm)
End cap type (DOE, 222/Fin, 226/Fin, etc.)
Gasket/O-ring material (Silicone, EPDM, Viton, etc.)
Quantity required
Intended application (optional, for better recommendation)

9. Customization Service

We offer OEM & ODM services:

Custom sizes
Custom private label
Custom packaging
Custom end caps
Custom gasket materials
FDA or pharmaceutical-grade validation documents

Econe Filtration supports distributors, wholesalers, and equipment manufacturers with stable supply and competitive pricing.

10. Hydrophobic PTFE Filter vs. Other Filter Types

PTFE vs. PP Pleated Filters

PTFE	PP
Hydrophobic	Hydrophilic
Highly chemical-resistant	Limited chemical compatibility
Ideal for air & gas	Ideal for water
Higher cost	Lower cost

PTFE vs. PVDF

PTFE has superior chemical and temperature resistance, while PVDF offers slightly better mechanical strength.

PTFE vs. Glass Fiber

Glass fiber is good for high dirt load, but cannot be used for sterile air applications where PTFE is required.

11. Typical Industries Served

Pharmaceutical manufacturing
Biotechnology
Food & beverage
Medical device production
Chemical processing
Semiconductor & electronics
Power plant venting
Air compressor manufacturing
Petrochemical industry

Our PTFE cartridges are already widely used in global factories for mission-critical applications.

12. Installation & Operation Guidelines

Pre-Installation

Ensure housing is clean and free of debris
Select correct end cap and length
Insert cartridge carefully to avoid damaging pleats

Operation

Maintain pressure within recommended limits
Do not expose cartridge to sudden extreme pressure shocks
Perform integrity test after autoclaving or SIP

Maintenance

Replace when flow rate decreases significantly
Store cartridges in a dry and clean environment

13. Conclusion

A hydrophobic PTFE pleated filter cartridge is a critical component for any system requiring sterile, clean, and moisture-resistant air or gas filtration. Its superior hydrophobicity, chemical resistance, and stability under harsh operating conditions make it the preferred solution for pharmaceutical, biotechnology, chemical, and food industries.

At Econe Filtration, we manufacture high-quality PTFE filter cartridges with strict quality control, competitive pricing, and fast delivery. Whether you need sterile air filters, gas purification solutions, or solvent vent filters, our PTFE cartridges deliver long-lasting performance and reliable protection for your processes.

Contact Us

nterested in our high-quality Hydrophobic pleated filter cartridges? Whether you need bulk supply or custom designs, our expert team is ready to assist. Get in touch for product catalogs, free samples, or a tailored quotation.

Email: john@econefiltration.com
Website: econefiltration.com
Phone/WhatsApp: +86-15057941949