Varafine VFSE Series Filter Cartridges product photo Primary L

Varafine VFSE Series Filter Cartridges

Description 

Varafine filters are well suited for ultra high purity DI water applications where very fine removal ratings are required, together with extremely high flow rates, for economical installations. They contain a highly asymmetric polysulfone membrane that results in exceptionally low pressure drop values.
  • Available in removal ratings from 0.02 µm to 0.45 µm
  • Double layer, patented highly asymmetric polysulfone membrane
  • Rapid rinse-up
  • Integrity testable
  • Manufactured in cleanroom environment


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Description
Description 

Varafine filters are well suited for ultra high purity DI water applications where very fine removal ratings are required, together with extremely high flow rates, for economical installations. They contain a highly asymmetric polysulfone membrane that results in exceptionally low pressure drop values.
  • Available in removal ratings from 0.02 µm to 0.45 µm
  • Double layer, patented highly asymmetric polysulfone membrane
  • Rapid rinse-up
  • Integrity testable
  • Manufactured in cleanroom environment
Specifications
Specifications

Materials

Medium: Hydrophilic asymmetric polysulfone membrane 
Core, cage and endcaps: Polypropylene
Support and drainage: Polypropylene 
Sealing method: Thermal Bond 
O-ring/gasket: Silicone elastomer (standard)

Removal Ratings
0.02, 0.1, 0.2, 0.45 µm

Configurations

Nominal lengths:
 
4" / 102 mm, 10" / 254 mm,
20" / 508 mm, 30" / 762 mm,
40" / 1016 mm
Diameter: 2.6" / 66 mm 
O-ring size/end caps:  Code M3 (222 double O-rings/flat end)
Code M8 (222 double O-rings/finned end)
Code M7 (226 double O-ring/bayonet lock/finned end) 

Operating Conditions
Maximum operating temperature:
86°F / 30°C (158°F / 70°C)1

Maximum forward differential pressure:
80 psid (5.5 bar) @ 68°F (20°C)
20 psid (1.4 bar) @ 158°F (70°C)

Integrity Test Values2
Per 10" / 254 mm segment

  • 0.02 µm
    < 30 cm3/min @ 50 psig / 3.4 bar
  • 0.1 µm
    < 24 cm3/min @ 25 psig / 1.7 bar
  • 0.2 µm
    < 20 cm3/min @ 20 psig / 1.4 bar
  • 0.45 µm
    < 15 cm3/min @ 15 psig / 1.0 bar


1 - Only in deoxygenated water systems; otherwise use Varafine T filters
2 - Test fluid used is 100% H2O

Performance
Pressure Drop vs. Liquid Flow Rate

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Ordering Information
Part Numbers/Ordering Information

VFSE        (e.g., VFSE10010M3S)

 
Code
 
Removal
Rating
   
020 0.02 µm
   
100 0.1 µm
   
200 0.2 µm
   
450 0.45 µm
 

 
Code
Cartridge Length
(nominal)
   
4 4" / 102 mm
   
10 10" / 254 mm
   
20 20" / 508 mm
   
30 30" / 762 mm
   
40 40" / 1016 mm
 

 
Code
Cartridge End
Configuration
   
M3  SOE flat closed end, external 222 O-rings
   
M7  SOE fin end, external 226 O-rings
   
M8  SOE fin end, external 222 O-rings
   
DOE Double open end
 
  
 
Code
O-ring Material
   
S Silicone
   
E EPDM
   
V Viton3 A
   
N Buna N
   
T TeflonEncapsulated
Silicone
   
F Teflon Encapsulated
Viton A
 
  
    
3 - Viton A and Teflon are trademarks of DuPont Dow Elastomers
Segment
Cartridge Filters