Seawater Ro Membrane

Seawater has a lot of salt. Usually 32,000 to 42,000 mg/l. With that much salt, the osmotic pressure is very high. You need very high pressure to push water through the membrane. Our product runs at 4.5 to 7 MPa. That is 45 to 70 kilograms of force per square centimeter. The membrane must be very strong. The material is aromatic polyamide composite. The size is 8040. This is the same size as other industrial membranes. You can use it in standard pressure vessels.

Seawater ro membrane is used for one main job. Turning seawater into fresh water. Our seawater desalination equipment uses these membranes. Our sea water desalination system uses them. Our water desalination unit uses them. Are you on a boat? Use this membrane. Are you on an island? Use this membrane. Are you on the coast? Use this membrane. The membrane handles TDS from 32,000 to 42,000 without any problem. The system recovery rate is 35% to 45%. That is good for seawater desalination.

Customers ask this question a lot. The honest answer is that it depends on several things. Seawater membranes work in a tough environment. High pressure. High salt. Sometimes sea life grows on the membrane. If your pre-treatment is good, the membrane lasts longer. If you clean it on time, the membrane lasts longer. With good care, a seawater ro membrane can last 3 to 5 years. We offer a 1 to 3 year warranty on our regular membranes. We call you from time to time to check your data. We tell you when to clean. We tell you when to replace. We have 14 years of experience. Use our membrane with confidence.