Hydrophilic PES Membraan Disc

PES (polyethersulfone) membrane discs are widely used in laboratory and pharmaceutical processes where consistency and reliability are critical.

Thanks to their asymmetric pore structure, these filters combine high flow rates with excellent dirt holding capacity. This results in fewer blockages, stable filtration performance and reproducible results. Even with more complex biological solutions such as media and buffers.

In addition, PES membranes are naturally hydrophilic, meaning no pre-wetting is required. Filtration can start immediately, saving time and reducing handling steps.

 Why choose PES membrane filters?

• High flow rates → faster filtration
• Low protein binding → maximum sample recovery
• Asymmetric structure → reduced risk of clogging
• Suitable for sterile filtration (e.g. 0.2 µm)
• Resistant to high temperatures (up to 140°C)
• Broad chemical compatibility (pH 3 – 14)
• For applications where product loss and process reliability are critical, PES is often the preferred choice.

 Typical applications

PES membrane discs are commonly used for:

• Sterile filtration of media and buffers
• Filtration of aqueous solutions
• Biotech and pharmaceutical processes
• High-temperature liquid filtration
• Laboratory analysis and quality control

 How to choose the right membrane filter

Selecting the right membrane depends on your application and fluid characteristics:

• PES → best for media and buffer filtration
• PVDF → for low protein binding and sensitive samples
• Nylon / Hydrophilic PTFE → for solvent mixtures
• Hydrophobic PTFE → for gases and aggressive chemicals
• Not sure which membrane fits your process? We are happy to help you select the right solution.

 Reliable filtration, available from stock

At Van Borselen Filters, we combine:

• Quality equivalent to leading global brands
• Fast delivery from stock
• Personal technical support
• This ensures your process keeps running. Without unnecessary downtime.