Memtrex HFE-T

Summary

Product identification

The Memtrex* HFE-T pleated filters feature an expanded polytetrafluoroethylene (ePTFE) membrane edge-laminated on Halar (ECTFE), with polyester plastic parts for the core, cage, and end caps. Halar is an industrial-grade fluoropolymer known for excellent solvent resistance.

The filters are manufactured and packaged in a cleanroom environment. They are designed to withstand very harsh process conditions, providing broad chemical compatibility and consistent, uniform process streams.

Available absolute pore size micron ratings: 0.05, 0.1, 0.2, 0.45 and 1 µm.

Performance Characteristics:

• Filtration Efficiency: 99.9% filtration efficiency at rated pore size based on ASTM F795 and F661 test methods.

Typical Applications:

• Harsh chemical environments
• Chemicals
• Microelectronics
• Pharmaceuticals

Operating limits

• Maximum Forward Differential Pressure: 60 psi (4.14 bar) at 70°F (21.1°C)
• Maximum Reverse Differential Pressure: 30 psi (2.07 bar) at 70°F (21.1°C)
• Maximum Operating Temperature: 205ºF (96.1ºC) at 25 psid (1.7 bar)

Mechanical / hydraulic

Dimensions:

• Nominal Outer Diameter: 2.75” (70mm)
• Nominal Inner Diameter: 1.25” (31mm)
• Nominal Cartridge Lengths: 10 in (25 cm), 20 in (51 cm), 30 in (76 cm), 40 in (102 cm)

Flow Performance: Flow performance data in clean water based on a 10” length filter is referenced in the original document, but specific values are not provided in this extract. See the official PDF for exact tabulated values.

Integrity Testing (Air Diffusion):

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

Additional Information

• Sanitization: Filters may be sanitized with compatible chemical agents. They must not be autoclaved or steam sterilized.
• Food Contact Compliance: Materials meet U.S. FDA requirements for food contact under applicable regulations in 21 CFR.
• USP Class VI Compliance: Filters meet the test criteria for USP class VI-121°C Plastics.
• Extractables: Aqueous extracts contain less than 0.25 EU/ml and typically exhibit low levels of non-volatile residues.
• Chemical Compatibility: Designed for resistance to a wide range of chemical solutions; users should carefully verify chemical compatibility for specific applications.

Ordering Information Options:

• Absolute Micron Rating: 0.05 µm, 0.1 µm, 0.2 µm, 0.45 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, Rinsed and packed wet (Pre Wet)

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the original PDF datasheet. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror