DuPont FilmTec™ BW30HRLE-440i High Rejection Low Energy Brackish Water RO Membrane – 8" x 40"

DuPont FilmTec™ BW30HRLE-440i High Rejection Low Energy Brackish Water Reverse Osmosis Membrane – 8" x 40" with iLEC™ Interlocking End Caps | 12,650 GPD

The FilmTec™ BW30HRLE-440i is DuPont’s advanced high rejection low energy brackish water RO membrane, designed for operators who demand excellent permeate purity at significantly lower operating pressures — up to 33% lower than standard brackish elements. This makes it ideal for energy-conscious municipal, industrial, and ultrapure water systems while delivering superior rejection of salts, silica, boron, nitrates, IPA, and ammonium.

Featuring a large 440 ft² active area, a 28 mil feed spacer, and DuPont’s innovative iLEC™ interlocking end caps, this element combines high productivity with reduced energy costs, minimized O-ring leaks, lower risk of telescoping, and easier installation/maintenance. The robust polyamide thin-film composite construction offers the widest cleaning pH range (1–13) for outstanding cleanability, durability, and long membrane life — even in challenging controlled-pretreated waters.

Key Benefits:

• High Rejection at Low Energy — Achieves 99.3% stabilized salt rejection (minimum 99.1%) while producing 12,650 GPD (48 m³/d) at just 150 psi test pressure — delivering strong performance with lower pumping and electricity costs.
• Superior Contaminant Rejection — Excellent removal of silica, boron, nitrate, IPA, and ammonium for higher-purity permeate in demanding applications.
• iLEC™ Interlocking End Caps — Reduces O-ring leaks, improves water quality, lowers operating costs, and simplifies element handling in multi-element vessels.
• Enhanced Fouling Resistance & Cleanability — 28 mil feed spacer and widest pH cleaning range (1–13 short-term) provide effective cleaning and extended element life.
• Increased Active Area — 440 ft² delivers high flow, allowing system designers to use fewer elements and reduce capital costs.
• Fiberglass Outer Wrap — Provides structural strength and durability for reliable operation up to 600 psi.

Ideal Applications:

• Industrial water demineralization and utility water
• Second-pass RO for ultrapure water production
• Municipal drinking water and water reuse systems
• Food & beverage processing
• Seawater desalination post-treatment or polishing
• Large commercial RO systems requiring high purity with energy efficiency

Technical Specifications:

• Active Area: 440 ft² (41 m²)
• Feed Spacer Thickness: 28 mil
• Permeate Flow Rate: 12,650 GPD (48 m³/d) nominal
• Stabilized Salt Rejection: 99.3%
• Minimum Salt Rejection: 99.1%
• Membrane Type: Polyamide Thin-Film Composite
• Dimensions: 40" net length (when interlocked) × 8" Diameter; individual element 40.5" with iLEC™
• Maximum Operating Pressure: 600 psi (41 bar)
• Maximum Operating Temperature: 113°F (45°C)
• pH Range (Continuous): 2–11 | Short-Term Cleaning: 1–13
• Maximum Pressure Drop: 15 psi per element / 50 psi per vessel
• Maximum Feed Flow: 75 GPM (17 m³/h)
• Free Chlorine Tolerance: <0.1 ppm
• Maximum Feed SDI: 5

Test conditions: 2,000 ppm NaCl, 150 psi (10.3 bar), 77°F (25°C), pH 8, 15% recovery.

Backed by DuPont’s technical expertise and reputation for innovation, the BW30HRLE-440i helps you achieve consistent high-purity water with lower energy consumption and reduced total cost of ownership.

Pro Tip: For optimal performance, use proper pretreatment, follow DuPont FilmTec™ design guidelines, and leverage the support of DuPont technical representatives.

Upgrade your RO system with the FilmTec™ BW30HRLE-440i today — enjoy high rejection, low-energy operation, and reliable long-term performance.