for every industry and filtration application

A membrane is a selective layer that allows certain components to pass while rejecting others. Membrane technology uses these selective layers for efficient separation without the need for phase transitions. The actual membrane is typically a thin film manufactured from polymers, metals, or ceramics. Membranes can operate with liquid or gaseous feed streams and can be either dense or porous.  

Membranes are manufactured in various geometries: flat sheets, spiral wound, capillary, and tubular. Separation by means of membranes requires concentration or pressure difference as the driving force. In pressure-driven water applications, membranes are categorized by pore size:

• Microfiltration with a pore size of 0.1 to 1 µm 

• Ultrafiltration with a pore size of 5 - 100 nm 

• Nanofiltration with a pore size of 1 - 5 nm

Reverse osmosis uses dense membranes without pores to desalinate seawater and produce potable water. In gas separation, membranes are used to separate oxygen from nitrogen or to improve natural gas quality by removing carbon dioxide.

We offer information pages on our website where you can find detailed information about polymeric membranes, hollow fiber membranes, tubular membranes, capillary membranes, fiber membranes, water filtration, membrane filtration and membrane separation.

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