SW (Sea Water) series is Vontron company developed apply to desalination of aromatic polyamide composite membrane components. This series of membrane components by optimizing the structure of membrane components to improve the water production, water production in the same requirements, reducing the number of membrane elements with low operating pressure, a small investment in equipment, desalination is good and stable performance characteristics. Especially its high rejection rate can be guaranteed to obtain drinking water from seawater by reverse osmosis. SW series of membrane elements for seawater and brackish water treatment high concentrations, can be used for desalination of seawater, brackish water desalination high concentration, power plants and other industrial boiler feed water, water treatment, wastewater reuse can also be used, such as the Food and Drug a variety of high-value applications in areas such as substance concentration and recovery.