Membranes for primary water

The spiral wound membrane of reverse osmosis is particularly suitable to be used for the removal of solids dissolved in water of different nature: tap water, fresh water, brackish water, saline water, sea water and salt water.

The RO module is a sandwich of membrane layers wrapped around a permeate tube. The layers are sealed on three sides while the fourth is connected to the permeate tube.

Membranes for water are divided into the following macro-areas:

Thanks to a thirty-year collaboration with Osmonics, Desal, GE Water, now Suez, Sepra is able to supply membranes for every type of application and proposing retrofit to all the products on the market. The Suez range has recently been expanded with the acquisition of the Lewabrane product line from the Lanxess group. The main manufacturers and brands of spiral wound membranes for water are: Filmtec DuPont, Hydranautics, Toray, CSM, Ropur, Vontron, Pentair, Mann + Hummel, Microdyn Nadir, Trisep, Oltremare, LG RO.

But how to choose the most suitable membrane?

There are a multitude of models such as indicators below, Please contact us and we will recommend the most suitable model for your application use.