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High-Flow Hydrophilic Filters from China Suppliers | Challenge Pore® PES Factory for Biopharmaceutical Processes
Features
- ✔ Reliable bacteria and particle retention
- ✔ Broad chemical compatibility
- ✔ High flow rate
- ✔ High throughput
Typical Application
- ✔ Prefiltration of cell culture media
- ✔ Buffer filtration
Operating Conditions
| Maximum Operating Temperature | 80℃ |
| Maximum Differential Pressure | 0.55MPa / 25℃ 0.1MPa / 80℃ |
Material Construction
| Filter Membrane | Hydrophilic Polyethersulfone (PES) |
| Inner Cage, Outer Cage | Polypropylene (PP) |
| Capsule Housing | Polypropylene (PP) |
| Capsule Vent O-Ring | Silicone Rubber |
| Filtration Accuracy | 0.45μm / 0.65μm / 0.8μm |
Biosafety
| Endotoxin | <0.25 EU/mL |
| Biocompatibility |
|
Dimension
| Disc Filter | D50: 20cm² |
| Capsule Filter | 01: 0.075m 02: 0.14m 04: 0.25m 05: 0.34m 10: 0.68m |
* Challenge Filair® PTFE filter cable of up to 50 cycles of high-temperature steam sterilization.
Sterilization
Challenge Pore® PES capsule filter cable of be sterilized by high-temperature steam (121 °C for 30 minutes, up to 5 cycles) or by gamma irradiation (25–40 kGy)
0.45μm Pre-Filtration Capsule Filter Flow Rate

Differential Pressure
Flow Rate at 20 °C: (L/min)
Flow Rate at 20 °C: (L/min)
Frequently Asked Questions
What are the typical applications for this filter?
Typical applications include the prefiltration of cell culture media and buffer filtration.
What are the operating temperature and pressure limits?
The maximum operating temperature is 80℃. The maximum differential pressure is 0.55MPa at 25℃ and 0.1MPa at 80℃.
What materials are used in the construction of the capsule filter?
The filter membrane is made of Hydrophilic Polyethersulfone (PES). The inner cage, outer cage, and capsule housing are constructed from Polypropylene (PP), and the capsule vent O-ring is made of Silicone Rubber.
Does the filter meet biosafety standards?
Yes. The filter has endotoxin levels of <0.25 EU/mL, is compliant with USP <87> Non-cytotoxic standards, and meets USP <88> Class VI plastic biocompatibility requirements.
How can the Challenge Pore® PES capsule filter be sterilized?
It can be sterilized by high-temperature steam at 121 °C for 30 minutes (up to 5 cycles) or by gamma irradiation at 25–40 kGy.
What filtration accuracies and sizes are available?
Filtration accuracies are available in 0.45μm, 0.65μm, and 0.8μm. Dimensions include Disc Filters (D50: 20cm²) and Capsule Filters in sizes 01 (0.075m), 02 (0.14m), 04 (0.25m), 05 (0.34m), and 10 (0.68m).





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