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FILTER CARTRIDGES: LOFMEM-E™, ULTRAPURE WATER FILTRATION

LOFMEM-E FILTER CARTRIDGESLOFMEM-E Polyethersulfone (PES)  Membrane filter cartridges are designed for ultrapure water filtration.  LOFMEM-E cartridges are inherently hydrophilic and contain no added surfactants or wetting agents.

 

LOFMEM-E Ultrapure water filter cartridges are used by the microelectronics industry for final filtration of ultrapure water. The polyethersulfone membrane provides high contaminant capacity, superior flow rates and consistent removal of particles and microorganisms.

 

LOFMEM-E filter cartridges are manufactured in ISO Class 7 cleanroom, 100% flushed with 18 MΩ-cm DI water and integrity tested. Resistivity rinse-up to 18 M Ω-cm and single digit ppb TOC levels in less than 30 minutes at 11.36 l/min (3 GPM) per 10-inch element.  All LOFMEM-E filter cartridges have the pore size, lot and serial number stamped on each filter element for identification and traceability.

 

LOFMEM-E Part Numbering table:

LOFMEM-E PART NUMBERS

LOFMEM-E™ END CONFIGURATIONS

LOFMEM-E END CONNECTIONS

LOFMEM-E specifications: (solid individually)

FILTER SPECIFICATIONS NOMINAL LENGTHS AVAILABLE: 5", 10", 20", 30" & 40"
MEDIA
Asymmetric polyethersulfone
membrane
RETENTIONS (MICRONS): 0.03, 0.10, 0.20, & 0.45
inner core, end caps & cage
Polypropylene
SURFACE AREA
7.6 ft2 (0.7m2) per 10" (254mm) length
SUPPORT LAYERS
Spunbound Polypropylene
OUTSIDE DIAMETER
2.7" (69mm)
INSIDE DIAMETER
1.0" (25.4mm)
OPTIONAL ELASTOMERS INCLUDE VITON AND PTFE

Max. sustained operating temperature
82°C @1.38 bar (180°F @ 20 psid)
Max. differential pressure
4.14 bar @ 27°C (60 psid @ 80°F)

2.07 bar @ 71°C (30 psid @ 160°F)
1.03 bar @ 95°C (15 psid @ 200°F)
Max. reverse differential pressure
2.76 bar @ 21°C (40 psid @ 70°F)
Recommended change-out pressure
2.4 bar (35 psid)

LOFMEM-E Water Flow Rate Differential Pressure Chart:

LOFMEM-E DIFFERENTIAL PRESSURE CHART