BW30-400 FilmTec 8 x 40″ Brackish Water Membrane

FilmTec™ BW30-400 Brackish Water RO Membrane

The FilmTec™ BW30-400 RO membrane by DuPont (formerly Dow) is a high-performance reverse osmosis membrane designed for large-scale industrial water treatment and demineralization applications. Engineered with advanced polyamide thin-film composite technology, this spiral-wound element delivers reliable, consistent, and efficient performance, making it the industry standard for operators seeking long service life, high salt rejection, and superior water quality.

With a stabilized salt rejection rate of 99.5% and a permeate flow rate of 40 m³/day, the FilmTec™ BW30-400 is ideal for brackish water treatment plants, ensuring low operating costs and dependable productivity. Its durable fiberglass shell and tolerance to a wide pH range make it robust, easy to clean, and suitable for challenging environments.

Key Features & Benefits

• Proven industry-standard RO membrane for brackish water applications.

• High salt rejection (99.5%) ensuring excellent permeate water quality.

• Long element life and low operating costs, maximizing ROI.

• Durable fiberglass construction for reliable large-scale performance.

• Wide pH cleaning range (1–13) for flexibility and easier maintenance.

• Designed to minimize capital and operational expenses (CAPEX & OPEX).

Specifications

• Application: Brackish Water

• Membrane Type: Polyamide Thin-Film Composite

• Element Size: 7.9″ × 40″ (201mm × 1016mm)

• Salt Rejection: 99.5%

• Permeate Flow Rate: 40 m³/day

• Max. Feed Flow Rate: 15.9 m³/hr

• Max. Operating Pressure: 41 bar

• Max. Temperature: 45°C

• pH Range (Continuous): 2 – 11

• pH Range (Short-Term Cleaning): 1 – 13

• Max. SDI: 5

• Free Chlorine Tolerance: <0.1 ppm

• Model: BW30-400 | Part Number: 98650