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China Challenge Pore® PES High-Flow Hydrophilic Filters - Trusted Suppliers and Factory for Biopharmaceutical Filtration 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
| Parameter | Specification |
|---|---|
| Maximum operating temperature | 80℃ |
| Maximum differential pressure | 0.55MPa/25℃, 0.1MPa/80℃ |
Material Construction
| Component | Material |
|---|---|
| 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
| Testing Item | Standard / Requirement |
|---|---|
| Endotoxin | <0.25 EU/mL |
| Biocompatibility |
|
Dimension
| Product Type | Specification Details |
|---|---|
| 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
Flow Rate at 20 °C: (L/min)
Frequently Asked Questions
What are the primary applications of this PES capsule filter?
This filter is typically used for the prefiltration of cell culture media and buffer filtration in laboratory and industrial processes.
What are the maximum operating temperature and pressure limits?
The filter can operate at a maximum temperature of 80℃. The maximum differential pressure limit is 0.55MPa at 25℃ and 0.1MPa at 80℃.
What materials are used to construct the capsule filter?
The membrane is made of Hydrophilic Polyethersulfone (PES), the inner/outer cages and capsule housing are constructed from Polypropylene (PP), and the capsule vent O-ring is made of Silicone Rubber.
What filtration accuracies are available for these filters?
The filters are available in three filtration accuracies: 0.45μm, 0.65μm, and 0.8μm.
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 a dose of 25–40 kGy.
Does this filter meet biosafety and biocompatibility standards?
Yes, it has endotoxin levels of <0.25 EU/mL, complies with USP <87> Non-cytotoxic standards, and meets USP <88> Class VI plastic biocompatibility requirements.





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