In 2003, Sumitomo Electric launched its "POREFLON Membrane Module," a PTFE water treatment membrane module which was an addition to its existing PTFE products.
Using polytetrafluoroethylene (PTFE) with its excellent chemical resistance, heat resistance and durability, Sumitomo Electric developed a porous membrane filter using its proprietary processing technology and commercialized the POREFLON Membrane Module as a water treatment membrane module. The membrane module is very strong, can be cleaned with a variety of chemicals, is easy to handle since it has been treated to be hydrophilic, and is highly water permeable. These features make it suitable for various water treatment applications. The POREFLON Membrane Module comes in two types: submerged and external pressurized for optimal suitability to specific applications.