Material Technology

Throughout each POREX MacroFlow PTFE membrane runs an intricate network of open-celled, omni-directional pores. These pores, made in average pore sizes down to one micron, give our media consistency throughout the cartridge providing a combination of filtering capability and structural strength. The microphotograph
illustrates the uniform pore structure of POREX MacroFlow PTFE Cartridge.

Feature - Rigid Omni-Directional Pore Structure

High Efficiency

• Consistent pore size minimizes performance changes caused by differential pressure
• Reproducible filtration performance

Narrow Pore Size Distribution

• Highly effective surface filtration for particles larger than the filter pore size rating
• Allows for effective classification of particulate

Thermally Bonded

• Sintered omni-directional pore structure
• No media migration, bypass or unloading from 1 to 10 microns

Excellent Chemical and Thermal Stability

• High chemical residence of PTFE and high temperature stability of PTFE Membrane
• No chemical degradation resulting in bypass or contamination of the process fluid and broad thermal processing window

Feature - Pleated Geometry Design

High Surface Area

• Low pressure drop, increased life, higher flow rate or fewer filters
• Lower filtration cost

Single Layer Membrane Construction

• Thermally-bonded membrane structure
• Improves media stability under pressure

Chemical Resistance

POREX® MacroFlow PTFE Cartridge Filters are made from commercially available thermoplastics. They are resistant
to a broad spectrum of corrosive chemicals and reagents. The customer should perform appropriate tests to determine the performance of POREX Cartridge Filters under each specific operating condition. Porex does not guarantee the accuracy of information or the suitability of products in specific applications. Users should determine suitability of the product for their specific application.

For more information see our Chemical Compatibility Chart.