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Technical Specifications

Materials of Construction

  • Filtration Membrane: Polyethersulphone
  • Upstream Support: Polypropylene
  • Downstream Support: Polypropylene
  • Inner Support Core: Polypropylene
  • Outer Protection Cage: Polypropylene
  • End Caps: Polypropylene
  • End Cap Insert (if applicable): 316L Stainless Steel*
    *Not available in B & L endcap variants
  • Standard o-rings/gaskets: Silicone / EPDM
  • Capsule Body: Polypropylene
  • Capsule Vent Seals: Silicone
  • Filling Bell: Polycarbonate

Food and Biological Safety

Materials conform to the relevant requirements of 21CFR Part 177, EC1935 / 2004 and current USP Plastics Class VI – 121 °C and ISO10993 equivalents.

Recommended Operating Conditions

Up to 70 °C (158 °F) continuous operating temperature and higher short-term temperatures during CIP to the following limits:

Capsules may be operated up to a temperature of 40 °C (104 °F) at line pressures up to 5.0 barg (72.51 psig) for liquids.

Effective Filtration Area (EFA)

10¨ (250 mm) Up to 0.69 m² (7.42 ft²)

Cleaning and Sterilization

PREPOR PES cartridges can be repeatedly steam sterilized in situ or autoclaved at up to 130 °C (266 °F). They can be sanitized with hot water at up to 90 °C (194 °F) and are compatible with a wide range of chemicals. Capsules can be repeatedly autoclaved up to 130 °C (266 °F).

To maximize the life of the cartridge, the differential pressure across the cartridge should not exceed 0.3 barg (4.35 psig) at 130 °C (266 °F).

Retention Characteristics

While the PREPOR PES product is rated for particulate retention, the performance of PREPOR PES products has been assessed to bacterial titre reduction using a challenge methodology based on the ASTM F838-05 methodology applied to sterilizing grade filters. Typical levels are given below:

Features and Benefits

  • Micron rating from 0.04 to 0.8 micron
  • Versatile particulate grade membrane filter for bioburden reduction and prefiltration duties
  • High filtration area with asymmetrical membrane giving long life and high flow rates
  • Available in a comprehensive range of end cap configurations for retrofitting existing applications

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