NF270-2540 DuPont FilmTec™ Membranes

DuPont FilmTec NF270-2540 Nanofiltration Membrane

The DuPont FilmTec NF270-2540 is a high-productivity, thin-film composite nanofiltration membrane engineered for selective water purification in commercial applications. Designed for systems where complete demineralization is not required, the NF270 chemistry excels at removing organic contaminants such as pesticides, herbicides, and precursors for trihalomethanes (THMs). It simultaneously provides partial softening by effectively rejecting hardness-causing divalent ions while allowing a controlled passage of monovalent salts. This selective performance makes it an ideal choice for surface water and groundwater treatment where the goal is to remove harmful organic substances and color while maintaining the mineral balance of the permeate.

Built for energy efficiency and operational economy, the NF270-2540 operates at a low nominal pressure of 70 PSI, which significantly reduces the energy requirements of the high-pressure pump system compared to standard reverse osmosis elements. The membrane features a robust 2.5-inch diameter by 40-inch length configuration, making it a standard component for compact commercial water treatment skids. With its high flux and wide cleaning pH range, this element provides reliable, continuous-duty performance for applications including drinking water production, food and beverage processing, and general industrial water conditioning.