The PES-BN filter element provides the greatest assurance of filtration performance, stability and service life for sterile filtration and microbial stabilization of highly colloidal liquids.
LifeTec PES-BN Liquid Filter Element

The outstanding performance of the PES-BN filter element is based on its state-of-the-art filtration media. The hydrophilic polyethersulfone membrane distinguishes itself by having an asymmetrically designed pore structure. The pore size steadily decreases towards the center of the medium, resulting in a highly porous structure.

This extremely durable design maintains consistent porosity and impurity retention throughout its service life without shedding or unloading contaminates.

All components meet EU and US requirements for Food Contact Use in accordance with the FDA Code of Federal Regulations (CFR), Title 21 and EU European Regulation (EC) EC/1935/2004 and subsequent amendments.

The filter element is manufactured in accordance with the GMP requirements as defined in EC/2023/2006, has no migration of filter media, is non-fiber releasing and is thermally welded.

All materials used do not contain any Substances of Very High Concern (SVHC) as defined in EC/1907/2006 and EC/65/2011.


  • Sterile grade rating of 0.45 micron
  • Excellent flow rate
  • Highly resistant materials
  • Extremely low adsorption of proteins
  • High thermal and hydrolytic stability
  • Highly robust polypropylene construction protects against deformation
  • Approved for Food Contact use according to US CFR Title 21 & EC/1935/2004

Beverage Clarification and Cold Sterilization:

  • Beer
  • Beer mix
  • Wine
  • Wine coolers

Clarification and Final Filtration:

  • Deionized water
  • Chemically treated water
  • High temperature water
  • Process water
  • Ingredient water
  • Soft drinks
  • Bottled water

Donaldson Liquid Filters for Food and Beverage Applications

Donaldson LifeTec filters for food and beverage are carefully manufactured in a clean room environment to maintain sterility and ensure superior quality.

Compressed Air & Process Filtration

We help protect your product and process integrity with advanced filtration technology, an extensive product portfolio and unrivaled support and expertise.