Hydrophilic PES Membrane for Sterile Filtration

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Hydrophilic PES membrane consists of pure polyether sulfone polymers without support. It can provide good mechanical strength, thermal stability and broad chemical compatibility. It’s applicable for sterile filtration of pure water filtration,medium, buffer, fermentation broth and other bio-products, etc.

Features and Benefits

  • Good chemical compatibility
  • Wide range of membrane ratings
  • Low bio-adsorption
  • Asymmetric structure, high flow rates


Hydrophilic PES Membrane for Sterile Filtration

Membrane Name PES
Membrane Material PolyetherSulfone(PES)
Support Material NO
Structure Asymmetric
Color white
Suface Plain
Membrane forms pieces or rolls
Outer  Diameter, mm 13, 20, 25, 37, 47, 60, 90, 142, 150, 200, 250, 293, 300
other size can be customized
Thickness 100-130μm
Wetting Hydrophilic
PH range 1-14
Removal rating,μm 0.1,0.22,0.45,0.65,
Forward maximum operating pressure 4.2bar@23℃,1.5bar@85℃
Flow rate@25℃ alcohol:
0.1μm ≥5ml/min/cm²@10Psi
0.22μm ≥15 ml/min/cm²@10Psi
0.45μm ≥35ml/min/cm²@10Psi
0.65μm ≥60ml/min/cm²@10Psi
Integrity Test-IPA  bubble point@23 ℃
0.1μm ≥ 2000 mbar
Integrity Test-water bubble point@23 ℃
0.22μm ≥  3500 mbar
0.45μm ≥ 2500 mbar
0.65μm ≥  1800 mbar
Sterilization By  autoclave at 123℃ or EO


  • Membranes produced in a controlled environment
  • Manufactured according to ISO9001 certified Quality Management System

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