Choosing the Right Membrane for Sterile Filtration: PES or PVDF?
In pharmaceutical manufacturing, biotechnology research, and laboratory filtration, membrane material selection directly affects flow rate, sample recovery, and chemical compatibility.
As a professional supplier of PES Membrane Filters and PVDF Membrane Filters, we provide high-performance sterile filtration solutions to distributors, OEM partners, and end laboratories worldwide.
This guide helps procurement managers and technical engineers choose the correct membrane for their application.
Product Comparison for Bulk Buyers
PES Membrane Filter – High Flow & Low Protein Binding
Key Advantages
- Naturally hydrophilic (no pre-wetting required)
- Extremely low protein adsorption
- High flow rate & throughput
- Ideal for aqueous solutions
- Excellent consistency between batches
Recommended Applications
- Cell culture media filtration
- Buffer and reagent sterilization
- Vaccine & biological preparations
- Protein/enzyme filtration
- Microbiological testing
For laboratories requiring maximum sample recovery, PES is often the preferred option.
PVDF Membrane Filter – Chemical Resistance & Durability
Key Advantages
- Excellent solvent compatibility
- High mechanical strength
- Broad pH tolerance
- Hydrophilic and hydrophobic versions available
- Suitable for gas and vent filtration
Recommended Applications
- Organic solvent filtration
- Pharmaceutical production
- Aggressive chemical samples
- Air/gas sterilization (hydrophobic type)
- Industrial filtration processes
For chemical laboratories and mixed solvent systems, PVDF offers greater durability and flexibility.
Technical Specifications (Bulk Supply Standard)
| Parameter | PES Membrane | PVDF Membrane |
| Material | Polyethersulfone | Polyvinylidene Fluoride |
| Surface Type | Hydrophilic | Hydrophilic / Hydrophobic |
| Pore Sizes | 0.22 μm / 0.45 μm | 0.1 μm / 0.22 μm / 0.45 μm |
| Diameter Options | 13 / 25 / 47 / 90 / 142 mm | 13 / 25 / 47 / 90 / 142 mm |
| Operating pH | 1–14 | 1–14 |
| Sterilization | Gamma / EO / Autoclave (selected models) | Gamma / EO |
| Packaging | Sterile / Non-sterile bulk pack | Sterile / Non-sterile bulk pack |
| Certification | ISO / CE available | ISO / CE available |
Custom pore size and diameter development available upon request.
OEM & Private Label Services
We support global distributors and brand owners with full OEM solutions:
✔ Private Label Packaging
- Customized logo printing
- Customized box design
- Barcode & regulatory labeling
✔ Custom Technical Parameters
- Special pore size development
- Customized membrane thickness
- Pre-cut discs/roll format
✔ Bulk Industrial Supply
- Stable monthly production capacity
- Strict QC with batch traceability
- Competitive pricing for long-term contracts
Minimum Order Quantity (MOQ) negotiable for distributors.
How to Select for Your Application
| Application | Recommended Membrane |
| Cell culture media | PES |
| Protein solution | PES |
| Solvent filtration | PVDF |
| Aggressive chemicals | PVDF |
| Air vent filtration | Hydrophobic PVDF |
| High-throughput aqueous | PES |
If your application involves primarily aqueous biological solutions → Choose PES.
If solvent compatibility and durability are critical → Choose PVDF.
Why Work With Us?
- 10+ years of membrane manufacturing experience
- Strict raw material control
- Stable supply chain
- Competitive distributor pricing
- Fast lead time
- Technical support for application matching
We help distributors expand their filtration product line with reliable quality and strong profit margins.
Request a Quote
Looking for a reliable PES membrane filter supplier or PVDF membrane manufacturer?
Contact our sales team for:
- Sample request
- OEM quotation
- Technical datasheet
- Bulk order pricing
We support global shipping and long-term strategic partnerships.
