LOFMEM-G

Summary

Product identification

The LOFMEM™G Series are absolute-rated polyethersulfone membrane pleated filter cartridges. These disposable cartridges are described as highly efficient and cost-effective, featuring a hydrophilic, asymmetric polyethersulfone membrane with 7.0 ft² (0.65 m²) of surface area per 10-inch element for high system flow rates.

Features and Benefits

• Large membrane surface area for high throughput
• Longer on-line service reduces costly maintenance time
• Absolute rated membrane from 0.1 to 0.65 µm
• Manufactured in an ISO Class 7 cleanroom environment
• 100% flushed with 18 MΩ-cm DI water and bubblepoint tested
• Meets USP Class VI biological test for plastics
• Fixed pore construction eliminates dirt unloading as differential pressure increases
• Low extractables

Filter Specifications

• Media: Asymmetric polyethersulfone membrane
• Inner core, end caps, cage: Polypropylene
• Support layers: Spunbond polypropylene
• Gaskets/O-Rings: Buna-N, EPDM, Silicone, Viton©, Teflon© encapsulated Viton O-Rings
• Micron ratings: 0.1, 0.2, 0.45, 0.65 µm

Dimensions / Parameters

• 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: 7.0 ft² (0.65 m²) per 10 inch element

Operating limits

• Max. sustained operating temperature: 180°F (82°C) at 20 psid (1.38 bar)
• Max. differential pressure:
  • 60 psid @ 80°F (4.14 bar @ 27°C)
  • 30 psid @ 160°F (2.07 bar @ 71°C)
  • 15 psid @ 200°F (1.03 bar @ 93°C)
• Max. reverse differential pressure: 40 psid @ 70°F (2.8 bar @ 21°C)
• Recommended change-out pressure: 35 psid (2.4 bar)

Performance Specifications

• Hot DI water: Filter cartridge will withstand temperatures of 185°F (85°C) for up to 30 consecutive minutes.
• Chemical compatibility: Filter cartridge resists most acids and bases, pH 1–14, and most oxidizing agents.
• Sanitizing agents: Filter cartridge may be sanitized in place with common oxidizing agents.
• Steam/Autoclave: Cartridges may be steamed or autoclaved for at least 5 one-hour cycles @ 275°F (135°C).

Applications

The LOFMEM-G cartridges are designed for a wide range of applications including:

• Food & beverage
• Filtration of acids & bases
• Cosmetics
• Inks
• Chemicals
• Ultra-pure water
• Other aqueous solutions

Material Compliance

All polypropylene material used in manufacturing complies with the regulations of the Food and Drug Administration (FDA) title 21 of the Code of Federal Regulations Sections 174.5, as applicable for food and beverage contact.

Filter Specification Code

The product can be ordered using a specification code with the following structure: LMG-Length-RetentionRating-EndConfiguration-GasketOrO-Ring.

• Filter Series: LMG (LOFMEM-G)
• Nominal Length:
  • -9 (9.75")
  • -10 (10.0")
  • -20 (20.0")
  • -30 (30.0")
  • -40 (40.0")
• Retention Rating:
  • -0.1 micron
  • -0.2 micron
  • -0.45 micron
  • -0.65 micron
• End Configuration:
  • DOE (Double Open End)
  • -1 (226/Flat Single Open End)
  • -2 (222/Fin Single Open End)
  • -3 (226/Fin Single Open End)
  • -4 (222/Flat Single Open End)
  • -10 (Double Open End, Internal O-Ring)
  • -20 (Single Open End, Internal O-Ring)
• Gasket or O-Ring:
  • S (Silicone)
  • B (Buna-N)
  • E (EPDM)
  • V (Viton)
  • T (FEP/Viton - O-Rings only)

Flow Rate

A graph titled "LOFMEM-G Flow Rate (70°F/21°C per 10" cartridge)" is provided in the official PDF, illustrating differential pressure versus flow rate for different micron ratings. See the official PDF for exact tabulated values.

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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