PES Microporous Pleated Filter Cartridge

Product Description — Hydrophilic PES (Polyethersulfone) Pleated Filter Cartridge

• The PES Pleated Filter Cartridge is manufactured using high-quality hydrophilic polyethersulfone (PES) membrane, featuring an advanced asymmetrical pore structure. This unique gradient membrane design provides a larger pore structure on the upstream side and a finer pore structure on the downstream side, allowing the cartridge to maintain high filtration efficiency while extending service life significantly. The progressive filtration mechanism enables higher dirt-holding capacity, reduced clogging, and lower overall operating costs for the filtration system.
• The hydrophilic nature of the PES membrane ensures rapid wetting and consistent filtration performance without the need for pre-wetting procedures, making it highly convenient for both continuous and batch filtration operations. PES membranes are known for their excellent mechanical strength, thermal stability, and resistance to weak acids, weak alkalis, and various aqueous solutions, making them ideal for the filtration of ultrapure water, buffer solutions, and water-based chemical fluids.
• The pleated design maximizes the effective filtration area, resulting in high flow rates and minimal pressure drop. In combination with the cartridge’s robust polypropylene support layers, center core, outer cage, and end caps, this filter provides exceptional structural integrity and operational stability throughout its entire service life.
• Because of its low protein-binding properties and high permeability, the PES pleated filter cartridge is widely used in industries requiring high purity, biocompatibility, and consistent flow characteristics. It is especially suitable for ultrapure water systems, pharmaceutical pre-filtration, biological liquids, laboratory filtration, and aqueous chemical processing.

Key Features & Performance Advantages

• Hydrophilic PES Membrane
  Ensures fast wetting and immediate use without pre-wetting procedures.

• Asymmetrical Membrane Structure
  Provides high dirt-holding capacity and longer service life while maintaining high filtration efficiency.

• Low Extractables & High Purity
  Ideal for critical water systems and sensitive aqueous solutions.

• Low Protein-Binding Characteristics
  Suitable for biological and pharmaceutical applications requiring minimal sample loss.

• High Flow Rate & Low Pressure Drop
  Pleated structure maximizes surface area for efficient filtration performance.

• Excellent Compatibility with Aqueous Systems
  Stable performance in weak acids, weak alkalis, and ultrapure water.

Material Construction

• Filter Media: Hydrophilic PES (Polyethersulfone)

• Support / Drainage Layers: Polypropylene (PP)

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

Typical Applications

• Ultrapure water systems (UPW)

• Weak acid and weak alkali solutions

• Buffer solutions and aqueous chemicals

• Pharmaceutical and biological pre-filtration

• Laboratory sample filtration

• Electronics-grade water filtration

• Food & beverage water pre-treatment

Operating Advantages

• Longer filter life due to gradient asymmetrical membrane

• Stable hydrophilicity ensures consistent filtration efficiency

• Designed to reduce total cost of ownership in water and aqueous systems

• Excellent mechanical strength suitable for demanding process conditions

Technical Specifications