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Challenge Pore® PES High-Flow Hydrophilic Filters - China Suppliers for Biopharmaceutical Factory Solutions
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: 0.075m² 02: 0.14m² 04: 0.25m² 05: 0.34m² 10: 0.68m² |
* 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 vs. Flow Rate at 20 °C (L/min)
Frequently Asked Questions
What are the primary applications of these PES capsule filters?
They are typically used for the prefiltration of cell culture media and buffer filtration in biopharmaceutical processes.
What are the maximum operating limits for these filters?
The maximum operating temperature is 80℃. The maximum differential pressure limits are 0.55MPa at 25℃ and 0.1MPa at 80℃.
Which materials are used in the capsule filter's construction?
The filter membrane is made of Hydrophilic Polyethersulfone (PES). The inner/outer cage and capsule housing are constructed from Polypropylene (PP), and the capsule vent O-ring is made of Silicone Rubber.
What biosafety standards do these capsule filters comply with?
They feature endotoxin levels of < 0.25 EU/mL, comply with USP <87> Non-cytotoxic standards, and meet USP <88> Class VI plastic biocompatibility requirements.
How can the Challenge Pore® PES capsule filters be sterilized?
They can be sterilized using high-temperature steam at 121 °C for 30 minutes (up to 5 cycles) or through gamma irradiation within a range of 25–40 kGy.
What filtration accuracies and sizes are available?
Filtration accuracies include 0.45μm, 0.65μm, and 0.8μm. For dimensions, the Disc Filter is available in D50 (20cm²), and Capsule Filters are available in sizes of 0.075m², 0.14m², 0.25m², 0.34m², and 0.68m².





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