Memtrex KM

Summary

Product Identification

Memtrex* KM (MKM) filters are designed for superior performance, featuring Veolia’s Nylon 66 membrane and all-polypropylene construction for broad chemical compatibility across diverse applications. They are constructed with thermoplastic sealing technologies, eliminating contaminating adhesives, and are individually integrity tested.

Key Features:

• Nylon 66 membranes are naturally hydrophilic, non-shedding, and do not contain leachable wetting agents.
• Manufactured under strict production control.
• Designed to ensure maximum downstream cleanliness.

Typical Applications:

• Microelectronics ultrapure water filtration
• Filtration of positive photoresists
• Filtration of organic solvents
• Other critical process fluid systems

Available Absolute Pore Size Micron Ratings:

• 0.2 µm
• 0.45 µm
• 0.65 µm

Construction Materials

• Media: Nylon 66 Membrane
• Support Layers: Polypropylene Microfiber
• Core and Cage: Polypropylene
• Endcaps and Adapters: Polypropylene

Mechanical / Hydraulic

Dimensions:

• Nominal O.D.: 2.75” (70 mm)
• Nominal I.D.: 1.25” (31 mm)
• Effective Filtration Area: 8.0 ft² (0.74 m²)

Operational Limits:

• Maximum Forward Differential Pressure: 60 psi (4.1 bar) at 70ºF (21ºC)
• Maximum Reverse Differential Pressure: 30 psi (2.1 bar) at 70ºF (21ºC)
• Maximum Operating Temperature: 180ºF (82ºC) at 10 psid (0.7 bar) in water

Flow Performance: The document includes a graph for flow performance in clean water, based on a 10" length filter, showing Service Flow (gpm/lpm) versus Pressure Drop (bar/psid) for MKM92, MKM94, and MKM96 models. See the official PDF for exact tabulated values.

Product Water

• Aqueous extracts from Memtrex KM filters contain less than 0.25 EU/ml.
• Filters typically exhibit low levels of non-volatile residues.
• Meet U.S. FDA requirements for food contact under applicable regulations in 21 CFR.
• Meet the test criteria for USP class VI-121°C Plastics.

Sterilization and Chemical Compatibility

• Memtrex KM filters may be autoclaved or in situ steam sterilized (up to 257°F [125°C], 30-minute cycles) for a maximum accumulated exposure of 10 hours.
• Filters can be sanitized with compatible chemical agents.
• Designed and manufactured for resistance to a wide range of chemical solutions; users should verify chemical compatibility for specific applications.

Integrity Testing

• 0.2 µm: ≤ 50 cc/min at 30 psig (2.07 bar)
• 0.45 µm: ≤ 50 cc/min at 15 psig (1.03 bar)

Ordering Information

Memtrex KM filters are customizable with various options:

• Type: MKM
• Micron Rating: 0.2 μm, 0.45 μm, 0.65 μm
• Nominal Cartridge Length: 10 in. (25.4 cm), 20 in. (50.8 cm), 30 in. (76 cm), 40 in. (101.5 cm)
• End #1 Adapter: Options include Open End Gasket and various O-Ring types (120, 213, 222, 226, 020 O-Ring, 222 O-Ring Stainless Steel Insert, 226 O-Ring Stainless Steel Insert).
• End #2 Adapter: Options include Open End Gasket, various O-Ring types (120, 213), Closed End Cap, and Fin Adapter.
• Elastomer Material: Buna-N, EPDM, Silicone, Teflon Encapsulated (only in 222 and 226 sizes), Viton.

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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