GVS Polytetrafluoroethylene (PTFE) Membrane
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GVS Laminated PTFE filters are made of a polytetrafluoroethylene polymer (PTFE) laminated to a polypropylene support for improved durability and easy handling.
These filters are chemically compatible with strong acids and most aggressive solvents such as alcohols.
PTFE (fine powder resin) is expanded into a 3-dimensional web-like structure called PTFE which creates billions of microscopic pores.
This structure utilizes the inherent hydrophobic (water-resistant) and non-stick nature of PTFE to allow removal of particulate captured on the membrane surface.
PTFE allows air to pass easily through the membrane while collecting particulate as small as 0.1 micron on its surface. PTFE membranes provide device manufacturers with a consistent, temperature and chemical compatible barrier to microbes and particulate matter.
The optimal combination of air flow and water entry pressure adds value to most device designs. Inherently hydrophobic, PTFE membranes will not absorb moisture from air or gases, making it ideal for venting applications, phase separations and aerosol samplings.
Laminated PTFE filters can be used to filter aqueous solutions when prewetted with methanol.
They are autoclavable up to 130°C.
- Pore sizes: 0.22μm and 0.45μm
- Materials: naturally hydrophobic
- Compatibility: compatible with strong acids and aggressive solution
- Other qualities: improved durability and handling
- Filtration of strong acids and aggressive solutions
- Venting applications
- Phase separations
- Aerosol sampling
GVS was founded in 1979 and is headquartered out of Bologna, Italy. GVS has a rich history of responsible innovation and a commitment to a future in which good health is a universally reachable target. In over 40 years of history, GVS has evolved from a supplier of components for the healthcare sector to a global group that produces highly technological diversified filtration solutions.
In the Healthcare & Life Sciences area, the GVS plants operate with ISO 13485 certifications and are compliant with the European Guide to Good Manufacturing Practice. Many of the products in this division have the CE certification, are registered with FDA in the United States or have registrations for the specific countries where the group operates.