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Hydrophobic pleated filter element made of polytetrafluoroethylene
The filtration membrane is made of polytetrafluoroethylene (PTFE). The structure with an internal support frame made of polypropylene or stainless steel is assembled using heat welding. The membrane has natural hydrophobicity, is resistant to strong acids and alkalis, high temperatures and ozone, and is designed for gas filtration.
Description
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Product performance characteristics
The filtration membrane is made of polytetrafluoroethylene (PTFE). The structure with an internal support frame made of polypropylene or stainless steel is assembled using heat welding. The membrane has natural hydrophobicity, is resistant to strong acids and alkalis, high temperatures and ozone, and is designed for gas filtration.
Applications
1. Steam filtration for dust removal and sterilization
2. Air filtration for sterile packaging
3. Sterilizing filtration of compressed gases
4. Clarifying and sterilizing filtration of organic solvents
5. Sterile filtration of inlet and outlet gases of fermenters, tanks and other containers
Product Features
1. Natural hydrophobicity;
2. Resistance to concentrated acids and alkalis;
3. Resistance to high temperatures and ozone;
4. Excellent control of pyrogenic substances;
5. High biological safety;
6. Complete absence of adhesives;
7. Washing with ultrapure water, no fiber detachment;
8. Each filter element is tested for integrity;
9. Provides stable sterilizing filtration even in humid environments.
Structural composition
| Component | Material |
| Filter material | Polytetrafluoroethylene (PTFE) membrane |
| Support and distribution layer | Polypropylene |
| Housing, end caps | Polypropylene |
| Central rod | Polypropylene or stainless steel |
Dimensions
| Parameter | Meaning |
| Outer diameter | Ø68, Ø69 mm |
| Inner diameter | Ø33 mm |
| Length | 5-40 inches |
| Effective filtration area | 0.65 m² by 10 inches |
Technical Parameters
| Indicator | Meaning |
| pH range | 1–14 |
| Standard operating temperature | ≤65°C |
| Maximum operating temperature | 90°C |
| Maximum pressure drop | 0.42 MPa at 25 °C 0.10 MPa at 90 °C |
| Sterilization mode | 121±2 °C, 30 minutes per cycle, up to 100 cycles permissible; or autoclave sterilization 30 minutes per cycle |
Leachables
| Indicator | Meaning |
| Endotoxin | <0.25 EU/ml |
| Leachables | <0.03 g per 10" filter element |
Curve of initial flow of clean water versus pressure drop (10-inch filter
Interface Specifications
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