The molecular weight intercepted by the nanofiltration membrane is between the reverse osmosis membrane and the ultrafiltration membrane, approximately 200-800 Daltons. Retention characteristics: Priority is given to the retention of divalent and multivalent anions, and the retention rate of monovalent ions is related to the concentration and composition of the feed solution. Nanofiltration is generally used to remove organic matter and pigments from surface water, hardness in groundwater, and partially remove dissolved salts. It is used for substance extraction and concentration in food and biopharmaceutical production. The operating pressure of the nanofiltration membrane is generally 3.5-30bar.

We provide a variety of roll type nanofiltration membrane components with fine molecular weight retention, which have a compact structure and reasonable surface area/volume ratio. By using different flow channel networks, (13-120mil) the width of the material liquid flow channel can be changed to adapt to various viscosities of the material liquid. In order to meet the application requirements of certain special industries, we can select suitable nanofiltration membranes for customers based on their different process requirements, treatment systems, and related technical requirements.

1. Accurate interception of molecular weight

2. Convenient replacement of membrane components

3. No dead corner design, less prone to pollution

4. Imported high-quality membrane materials with high flux and high stability

5. Various specifications of membrane components are available for selection

6. High filling density of membrane core and low cost per unit membrane area