PTFE Capsule filters consistently achieve absolute filtration with low extractables.Constructed using100% PTFE membrane, they are especially designed for reliable general chemical and air filtration.Hydrophobic PTFE Capsule filters require alcohol prewetting prior to aqueous solution filtration.

How do PTFE capsule filter work?

MS PTFE filter capsules are highly retentive hydrophobic PTFE membrane filters that have been specially designed for critical applications. The PTFE membrane in an all-polypropylene construction provides excellent chemical compatibility and superior flow per surface area as compared to other membrane capsules. No adhesives, binders, or surfactants are used in the manufacturing process and all cartridges are rinsed with high purity water to reduce extractables and downtime. The hydrophobic PTFE membrane is ideally suited for aggressive chemicals such as acids, bases, and solvents. In addition, the hydrophobic membrane provides superior flow and pressure drop characteristics per surface area for gas filtration and tank venting applications. All filter capsules are 100% integrity tested to ensure filter performance each and every time out of the package.PTFE filter capsules are well suited for critical applications where superior flow and particle removal efficiency at 0.1, 0.2, 0.45 and 1.0 micron is required.

Key features of PTFE capsule filter

l Single-use filtration systems save cleaning time and validation cost

l No housing maintenance required

l High throughtput

l PTFE material own widely Range of Chemical Compatibility;

l Super Hydrophobic feature with high flow rate and sterile performance;

l 100% Integrity Test for each capsule

l High Porosity PTFE membrane

l Various cages and connections are available

How to choose the right PTFE capsule filter?

l Application Type:

Air/Gas Filtration: 

Choose PTFE for filtering air and gases, especially for sterile air or gas in pharmaceutical applications. 

Aggressive Liquid Filtration: PTFE's high chemical resistance makes it ideal for filtering solvents, acids, and bases.

l Pore Size: Sterilizing Grade: For sterile filtering of liquids, choose a pore size of 0.1 or 0.22 µm.

General Particle Removal: For less critical liquid or gas filtration, a larger pore size (e.g., 0.45, 1.0 µm) might suffice.

l Flow Rate and Volume: 

High-Throughput: For larger fluid volumes, select a larger capsule filter to handle the high throughput.

Low Flow/Lab Scale:Smaller capsules are suitable for lower flow rates or laboratory-scale work.

l Chemical and Temperature Compatibility:

Material Resistance: 

Verify the PTFE filter housing material can withstand the specific chemicals and temperatures in your process. 

Hydrophobic Nature: 

Remember that a standard PTFE filter is hydrophobic, meaning it repels water but is excellent for gases and organic solvents. 

l Connector and Sterilization:

Connectors: 

Ensure the inlet and outlet connectors (barb, threaded) are compatible with your system's tubing or process lines. 

Sterilization: 

For critical applications, choose a sterile filter that is pre-sterilized by gamma irradiation to prevent contamination. 

Why Choose a PTFE Capsule Filter?

Excellent Chemical Compatibility: Ideal for aggressive chemicals, solvents, and acids. 

High Flow Rates & Throughput: The pleated design and PTFE material ensure efficient filtration with superior flow characteristics. 

Low Extractables: Manufactured without adhesives or binders, resulting in minimal contamination of the sample. 

Sterility Assurance (for specific designs): 

Hydrophobic PTFE membranes are excellent for sterile gas filtration and venting applications, providing sterility assurance. 

Ease of Use: The self-contained, disposable design simplifies operation and minimizes downtime by eliminating the need for separate housings. 

Conclusion

Ready-to-use capsule filters make large volume filtration fast and easy. Combining high efficiency media with innovative design features, single-use capsule filters enable safe, high throughput, and (where required) sterile membrane filtration for liquid, gas, and critical solutions. PTFE capsules are easy-to-use filtration units, ideally suited for single-use applications in the pharmaceutical industry. The hydrophobic polytetrafluoroethylene (PTFE) membrane is chemically resistant and demonstrates exceptional thermal strength and flow performance in venting and compressed gas applications. The filter capsules are available in a complete spectrum of sizes to simplify scale-up throughout each stage of the drug development process.