WFPK Series Filter Cartridges product photo Primary L

WFPK Series Filter Cartridges

For High Flow LCD Cleaning Processes

  • High flow applications in generation 5 and higher LCD cleaning equipment
  • Unique highly asymmetric polysulfone membrane (HAPS) provides excellent dirt holding capacity and flow characteristics
  • Low differential pressure
  • Fits most manufacturers' housings
  • Compatible with cleaning applications in developing, etching and stripping processes


* Required
Need Help?
Download Datasheet
Description

For High Flow LCD Cleaning Processes

  • High flow applications in generation 5 and higher LCD cleaning equipment
  • Unique highly asymmetric polysulfone membrane (HAPS) provides excellent dirt holding capacity and flow characteristics
  • Low differential pressure
  • Fits most manufacturers' housings
  • Compatible with cleaning applications in developing, etching and stripping processes
Specifications

Performance Specifications

Filter Grades (Based on PSL Removal):

  • 0.05, 0.1, 0.2, 0.45 μm

Maximum Differential Pressure:

  • 0.55 MPa (80 psid) @ 20 ˚C (68 ˚F)
  • 0.14 MPa (20 psid) @ 90 ˚C (194 ˚F)

Recommended Changeout Differential Pressure1:

  • 35 psid (2.41 bard)
  • 0.24 MPa (35 psid)

Rinse-Up:

  • Cartridge will rinse up to 18 Megohm-cm with a minimum of throughput.

Product Specifications

Materials of Construction

:
  • Filter Media:
    • Hydrophilic Highly Asymmetric
    • Polysulfone Membrane
  • Support Material: Polypropylene
  • Hardware: Polypropylene
  • O-ring: EPDM, Fluoroelastomer, Silicone
  • Sealing: Thermal Bond

Dimensions (nominal):

  • Outside Diameter: 66 mm (2.6 in.)
  • Length (tip-to-tip): 254 mm (10 in.), 508 mm (20 in.), 762 mm (30 in.)
1 - Provided that the maximum differential pressure is not exceeded based on temperature limits defined above.
Performance

Typical Pressure Drop vs. Liquid Flow Rate

Typical Pressure Drop vs. Liquid Flow Rate
Flow rate is per 254 mm (10 in.) cartridge. For liquids other than water, multiply differential pressure by fluid viscosity (cps).
Type
Cartridges and Elements
Use
Filtration
Ordering Information
WFPK [1] - [2][3][4][5] (e.g. WFPK0.2-10UE-M3)

Table 1 - Filter Grades

Code 1 Filter Grades2
0.05 0.05 μm
0.1 0.1 μm
0.2 0.2 μm
0.45 0.45 μm

Table 2 - Cartridge Lengths

Code 2 Cartridge Lengths
10 10 inches
20 20 inches
30 30 inches

Table 3 - Core Material

Code 3 Core Material
U Polypropylene

Table 4 - O-ring Materials

Code 4 O-ring Materials
S Silicone
E EPDM
V Fluoroelastomer
T FEP encapsulated Silicone
F FEP encapsulated Fluoroelastomer

Table 5 - End Configuration

Code 5 End Configuration
No Symbol Double open end industrial
M3 SOE flat closed end, external 222 O-rings
M6 SOE flat closed end, external 226 O-rings
M7 SOE fin end, external 226 O-rings
2 Based on typical application usage.


Unit conversion: 1 MPa = 10 bar
Application
Wet Etch Chemicals, Cleaning
Segment
Display