Varafine™ T Series VTSE Filters product photo Primary L

Varafine™ T Series VTSE Filters

The Varafine T series of cartridges are uniquely suited for the filtration of hot DI water.
  • Available in removal ratings of 0.02 μm, 0.1 μm and 0.2 μm
  • Double layer, patented highly asymmetric polysulfone membrane provides high flow rates with low pressure drops
  • No prewetting required with the hydrophilic polysulfone membrane
  • Polysulfone/ECTFE hardware provides resistance to hot UPW
  • Rapid rinse-up
  • Integrity testable
  • Manufactured in cleanroom environment


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Description
The Varafine T series of cartridges are uniquely suited for the filtration of hot DI water.
  • Available in removal ratings of 0.02 μm, 0.1 μm and 0.2 μm
  • Double layer, patented highly asymmetric polysulfone membrane provides high flow rates with low pressure drops
  • No prewetting required with the hydrophilic polysulfone membrane
  • Polysulfone/ECTFE hardware provides resistance to hot UPW
  • Rapid rinse-up
  • Integrity testable
  • Manufactured in cleanroom environment
Specifications

Materials

  • Medium: Hydrophilic asymmetric polysulfone
  • Core, cage and endcaps: Polysulfone
  • Support and drainage: ECTFE
  • Sealing method: Thermal bond
  • O-ring: Teflon1 encapsulated Viton1 (standard)

Removal Ratings

  • 0.02 μm, 0.1 μm, 0.2 μm

Configurations

  • Nominal length:
    • 4 in. / 102 mm
    • 10 in. / 254 mm
    • 20 in. / 508 mm
    • 30 in. / 762 mm
    • 40 in. / 1016 mm
  • Diameter: 2.6 in / 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: 203 °F/95 °C
  • Maximum forward differential pressure:
    • 90 psid @ 68 °F / 6.2 bar @ 20 °C
    • 60 psid @ 203 °F / 4 bar @ 95 °C

Integrity Test Values2

Per 10 in. / 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
1 Viton and Teflon are trademarks of DuPont Dow Elastomers.
2 Test fluid used is 100% H2O
Performance

Pressure Drop vs. Liquid Flow Rate

Flow Characteristics of 10 in / 254 mm Varafine T Filter Cartridges

Flow Characteristics of 10 in / 254 mm Varafine T Filter Cartridges
Type
Cartridges and Elements
Ordering Information
This information is a guide to the part number structure and possible options. For availability of specific options and housing details, please contact Pall.

Example Part Number: VTSE 100 30 M7 T ( See bold references in tables below)

Part Number:
VTSE < Removal Rating Code from Table 1 > < Nominal Length Code from Table 2> < Cartridge End Configuration Code from Table 3 > < O-ring Material Code from Table 4 >

Table 1 - Removal Rating (μm)

Code Removal Rating (μm)
020 0.02
100 0.1
200 0.2

Table 2 - Nominal Length (in / mm)

Code Nominal Length (in / mm)
4 4 / 102
10 10 / 254
20 20 / 508
30 30 / 762
40 40 / 1016

Table 3 - Cartridge End Configuration

Code Cartridge End Configuration
M3 SOE flat closed end, 222 O-rings
M7 SOE fin end, 226 O-rings
M8 SOE fin end, 222 O-rings

Table 4 - O-ring Material

Code O-ring Material
S Silicone
E EPDM
V Viton A
T Teflon Encapsulated Silicone
F Teflon Encapsulated Viton A
C Chemraz3
3 Chemraz is a trademark of Greene Tweed, Inc.


Unit conversion: 1 bar = 100 kilopascals
Application
Ultrapure water