Industrial Filtration Solutions Manufacturer since 1998

PTFE Hydrophilic Microporous Pleated Filter Cartridge

PTFE pleated filter cartridges utilize a modified hydrophilic polytetrafluoroethylene (PTFE) membrane with stable and durable hydrophilicity, allowing direct filtration without the need for pre-wetting. The expanded PTFE membrane offers exceptional resistance to corrosion, oxidation, and organic solvents, delivering broad chemical compatibility for demanding process conditions. These properties make the cartridge ideal for particle removal and sterilization-grade filtration of chemical reagents, corrosive liquids, and strongly oxidizing fluids.


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Product Description — Hydrophilic PTFE Pleated Filter Cartridge

  • The hydrophilic PTFE Pleated Filter Cartridge is designed using a modified, fully hydrophilic polytetrafluoroethylene (PTFE) membrane that provides stable and long-lasting wettability, enabling direct use without any pre-wetting procedures. This feature significantly improves operational convenience and ensures consistent filtration efficiency in both batch and continuous processing environments.
  • Engineered through an advanced PTFE stretching process, the membrane exhibits exceptional resistance to strong acids, strong alkalis, oxidizing agents, and a wide range of organic solvents. Its unique chemical inertness delivers outstanding compatibility with aggressive chemical fluids where conventional filter materials cannot operate reliably. This makes the cartridge highly suitable for particle removal and sterilization-grade filtration in applications requiring the highest levels of purity, corrosion resistance, and microbial control.
  • The pleated configuration maximizes surface area, resulting in high flow rates, low differential pressure, and extended service life. The robust polypropylene (PP) support structure—including the drainage layers, core, cage, and end caps—ensures mechanical strength, low extractables, and broad chemical compatibility throughout the entire filtration system.
  • With its superior stability, reliable wetting properties, and strong resistance to degradation under harsh chemical conditions, the hydrophilic PTFE pleated filter cartridge provides consistent, high-performance filtration for demanding process applications in chemical processing, pharmaceuticals, fine chemicals, electronic chemicals, and high-purity reagent production.

Key Features & Performance Advantages

  • Modified Hydrophilic PTFE Membrane
    Naturally wettable and stable; allows direct filtration without pre-wetting.

  • Exceptional Chemical Resistance
    Withstands strong acids, alkalis, oxidizing agents, and organic solvents.

  • Sterilization-Grade Filtration
    Provides excellent microbial retention for high-purity and critical applications.

  • High Flow Rate & Low Pressure Drop
    Pleated design maximizes effective filtration area and extends service life.

  • Low Extractables & High Cleanliness
    Ensures minimal contamination risk for sensitive chemical processes.

  • Robust Construction with Polypropylene Components
    Full PP support ensures durability and broad chemical compatibility.

Material Construction

  • Filter Media: Modified Hydrophilic PTFE

  • Support / Drainage Layers: Polypropylene (PP)

  • Center Core / Outer Cage / End Caps: Polypropylene (PP)

Typical Applications

  • Strong acids and alkalis

  • Highly oxidizing liquids

  • Organic and inorganic solvents

  • Chemical reagents and corrosive chemicals

  • High-purity chemical production

  • Electronic chemicals and semiconductor processes

  • Sterile filtration in fine chemicals and laboratories

  • Particle and microbial retention in aggressive fluid systems

Operating Advantages

  • Direct filtration without pre-wetting simplifies workflow

  • Stable hydrophilicity ensures consistent filtration efficiency

  • High thermal and mechanical stability under varying conditions

  • Ideal for long-term use in harsh chemical environments

  • Compatible with a wide range of filtration housings

PTFE Pleated Filter Cartridge – Technical Specifications

Parameter Value
Extractables <30 mg/10”
Endotoxin Level <0.25 EU/mL/10”
Maximum Operating Temperature 80°C
Max Differential Pressure (21°C) 0.38 MPa
Max Differential Pressure (80°C) 0.15 MPa
Filter Media PTFE (Hydrophobic / Hydrophilic)
Support Layer Polypropylene (PP)
Center Core / Outer Cage / End Caps Polypropylene (PP)