Memtrex HFE

Summary

Product Identification

The Memtrex HFE filter is an all-fluoropolymer pleated cartridge constructed from Halar (ECTFE) and ePTFE. It is designed for demanding filtration applications requiring broad chemical compatibility and high purity results. Key features include:

• Made entirely from fluoropolymer materials, including Halar (ECTFE) and PTFE.
• Edge lamination technology for lower pressure drop and increased flow rate.
• Withstands harsh process conditions.
• Absolute rated efficiencies (99.9% filtration efficiency at rated pore size based on ASTM F795 and F661 test methods).
• Manufactured and packaged in a cleanroom environment.
• Available absolute pore size micron ratings: 0.05, 0.1, 0.2, 0.45, and 1 µm.

Typical Applications:

• Chemicals
• Microelectronics
• Pharmaceuticals

Materials of Construction

• Core and Cage: Halar (ECTFE)
• Support Layer: Halar (ECTFE)
• Membrane: ePTFE
• End caps: Halar (ECTFE)

Operating Limits

• Maximum forward differential pressure: 60 psi (4.14 bar) at 70ºF (21.1ºC)
• Maximum reverse differential pressure: 30 psi (2.07 bar) at 70ºF (21.1ºC)
• Maximum operating temperature: 205ºF (96.1ºC) at 25 psid (1.7 bar)

Mechanical / Hydraulic

Dimensions: For models MHFE85, MHFE91, MHFE92, MHFE94, MHFE01:

• Nominal O.D.: 2.75” (70mm)
• Nominal I.D.: 1.25” (31mm)

Integrity Testing:

• 0.05 µm: ≤ 5 cc / min at 40 psig (2.76 bar)
• 0.1 µm: ≤ 5 cc / min at 40 psig (2.76 bar)
• 0.2 µm: ≤ 5 cc / min at 30 psig (2.07 bar)
• 0.45 µm: ≤ 5 cc / min at 20 psig (1.38 bar)
• 1 µm: ≤ 5 cc / min at 15 psig (1.38 bar)

Flow Performance in Clean Water: Specific flow performance data is available for a 10" length filter. See the official PDF for exact tabulated values.

Additional Information

• Memtrex HFE filters may be sanitized with compatible chemical agents, but must not be autoclaved or steam sterilized.
• Materials meet U.S. FDA requirements for food contact under applicable regulations in 21 CFR.
• Filters meet the test criteria for USP Class VI-121°C Plastics.
• Aqueous extracts from Memtrex HFE filters contain less than 0.25 EU/ml.
• Filters typically exhibit low levels of non-volatile residues.
• Users should carefully verify chemical compatibility for their specific application.

Ordering Information

The Memtrex HFE filters are configurable by:

• Absolute Micron Rating: 0.05, 0.1, 0.2, 0.45, 1 µm
• Nominal Cartridge Length: 10 in (25 cm), 20 in (51 cm), 30 in (76 cm), 40 in (102 cm)
• End #1 Adapter: Open End Gasket, 222 O-Ring, 226 O-Ring
• End #2 Adapter: Open End Gasket, Closed End Cap, Fin Adapter
• Elastomer Material: Teflon Encapsulated Viton
• Product Grade: Electronic grade rinse, Pre Wet (rinsed and packed wet)

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Disclaimer: This summary is based solely on the provided text extract. It may not include all figures, footnotes, or the most recent revisions found in the complete OEM PDF datasheet. For contractual data, always refer to the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror