Documents
Datasheets
Download: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 Typical Pressure Drop vs. Liquid Flow Rate](/INTERSHOP/static/WFS/PALL-PALLUS-Site/-/PALL/en_US/images/Microelectronics/wfpk_series_chart1.jpg)
Flow rate is per 254 mm (10 in.) cartridge. For liquids other than water, multiply differential pressure by fluid viscosity (cps).
Type
Filter Cartridges
Ordering Information
WFPK [1] - [2][3][4][5] (e.g. WFPK0.2-10UE-M3)
Unit conversion: 1 MPa = 10 bar
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
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