PTFE Capsule Filter

Order MS PTFE Capsule Filter solutions for ready-to-use filtration of liquids and gases where chemical resistance, temperature tolerance, and low extractables are essential. These compact capsule devices combine a PTFE membrane with an integrated housing to simplify installation, reduce handling risk, and deliver stable filtration performance in validation oriented processes.

What it is

PTFE capsule filters use polytetrafluoroethylene membranes to support broad chemical compatibility and reliable retention across a wide range of media. Models are typically selected by membrane type, pore size, filtration area, housing material, and connection design. For applications that require documented quality control, options can include 100% integrity test, with common verification methods such as Bubble Point and WIT (Water Intrusion Test) depending on the membrane wettability and test conditions.

For air, gas, and venting applications, Hydrophobic PTFE Capsule Filters repel water and are widely used for compressed air, process gases, fermentation systems, vacuum lines, and tank vents. They help reduce aerosols, fine particulates, and microorganisms, supporting clean gas delivery and equipment protection. When sterile gas filtration is required,  Sterilizing-Grade PTFE Capsule Filters with pore sizes commonly at 0.2 or 0.22 μm are used for sterile air filtration and aseptic venting in bioprocess and pharmaceutical environments.

For aqueous liquids, Hydrophilic PTFE Capsule Filters are suitable for water based solutions without alcohol pre wetting. Typical streams include process water, buffers, reagents, pharmaceutical solutions, acids, alkalis, and other aggressive chemicals. Depending on pore size and process target, they can be used for clarification, particle reduction, bioburden reduction, and sterilizing filtration.

Custom Service Supported

As a China factory supplier, MS supports OEM projects and customized configurations to match different installation and validation needs. Typical customization includes membrane rating selection, effective filtration area, housing materials, and connection designs. For streams with higher particulate load or where membrane life needs to be extended, a pre filtration stage can be configured ahead of the final PTFE membrane to reduce premature blockage while maintaining stable flow.

Application

Pleated PTFE capsules provide a large effective filtration area, high flow capacity, good dirt holding performance, and longer service life in a compact structure. Typical liquid applications include solvents, laboratory reagents, coatings, inks, photoresists, high purity chemicals, and pharmaceutical intermediates. Typical gas applications include sterile air filtration, compressed gas purification, bioreactor venting, tank breathing, and exhaust filtration. PTFE Capsule Filter products are widely used in pharmaceutical, biotechnology, chemical, electronics, laboratory, and industrial processing.