LOFMEM-Q

Summary

Product identification

The LOFMEM™Q Series are absolute-rated polyester Track-Etch membrane filter cartridges. These pleated filter elements are engineered for consistent and reliable filtration across a broad range of conditions.

Key features and benefits:

• High performance filtration achieved through sieving.
• 12.5 ft² of membrane surface area per 10" length.
• Validated to USP VI biological standards for plastics.
• Easily sanitized using hot water, steam, H₂O₂ and other sterilizing agents.
• Rapid flushing and high cleanliness from all-polyester construction.
• No ionic contamination.

Operating limits

• Max. operating temp.: 176°F (80°C)
• Max. differential pressure:
  • 75 psid @ 70°F (5.5 bar @ 21°C)
  • 5 psid @ 176°F (0.3 bar @ 80°C)

Mechanical / hydraulic

Materials of construction:

• Media: Polyester Track-Etch membrane
• Inner core, end caps, cage: Polyester
• Support layer: Polyester
• Gasket/O-Rings: Buna-N, EPDM, Silicone, Viton©, Teflon© encapsulated Viton O-Rings

Filter specifications:

• Micron ratings: 0.1, 0.2, 0.4, 0.6 µm
• Nominal lengths: 9.75", 10", 20", 30", 40" (24.7, 25.4, 50.8, 76.2, 101.6 cm)
• Outside diameter: 2.7" (6.9 cm)
• Inside diameter: 1.0" (2.54 cm)
• Surface area: 12.5 ft² (1.2 m²) – for a 10" element

Available configurations (via Filter Specification Code):

• Nominal Lengths: 9.75", 10.0", 20.0", 30.0", 40.0"
• End Configurations:
  • DOE Double Open End
  • 226/Flat Single Open End
  • 222/Fin Single Open End
  • 226/Fin Single Open End
  • 222/Flat Single Open End
  • Double Open End, Internal O-Ring
  • Single Open End, Internal O-Ring
• Gasket or O-Ring Materials: Silicone, Buna-N, EPDM, Viton, FEP/Viton (O-Rings only)

The flow rate curve illustrates differential pressure versus flow rate for 0.1, 0.2, and 0.4 µm cartridges at ambient temperature per 10" length. Consult the official PDF for specific flow curves.

Product water

LOFMEM-Q Rinse-Up Performance Typical Results per 10" Cartridge: (Cartridges flushed before tests. Contact Eaton for test conditions.)

Quick Flush:

• Resistivity: 18 MΩ-cm after < 80 gal. (303 L)
• TOC: < 5 ppb after < 35 gal. (133 L)
• Particles > pore rating: < 5/mL after < 35 gal. (133 L)

Background Flush:

• Resistivity: 18.15 MΩ-cm after < 1,300 gal. (4,920 L)
• TOC: < 2 ppb after < 150 gal. (568 L)
• Particles > pore rating: < 1/mL after < 150 gal. (568 L)

Applications

LOFMEM-Q cartridges are used in a range of filtration processes including:

• General industrial water
• Pharmaceutical water
• Semiconductor ultrapure water & chemicals
• Solvents & recirculating plating and etch baths

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

Official datasheet (PDF)

Lenntech datasheet mirror