
Filmtec (BW30LE-4040) Brackish Water Low Energy Membrane 2,500 GPD 4 "X 40"
Filmtec BW30LE-4040 Brackish Water Low Energy Membrane
Designed for brackish water applications where energy costs matter
Low Energy Design
The BW30LE-4040 operates at significantly lower pressures than standard membranes, reducing energy consumption and operating costs while maintaining 2,500 GPD permeate flow at just 150 psi
99.0% Salt Rejection
Stabilized rejection rate removes dissolved salts, minerals, and contaminants from brackish water sources at 2000 ppm NaCl feed concentration with 15% recovery rate
Hard Shell Construction
Built with reinforced exterior designed for multi-element pressure vessels containing three or more membranes, withstanding higher pressure drops in commercial arrays
78 ft² Active Surface
Maximum membrane surface area in a 4" x 40" element format provides consistent performance in light industrial brackish water RO systems with optimal flow characteristics
Filmtec Quality Standard
Dow Filmtec engineering delivers reliable, tested performance in commercial brackish water applications. Previously designated as BW30LE-4040, same proven membrane technology
Tested performance parameters
System integration
The Filmtec BW30LE-4040 membrane fits standard 4-inch commercial reverse osmosis housings designed for 40-inch elements. Recommended for multi-element pressure vessels with three or more membranes due to hard shell construction. Compatible with brackish water RO systems operating at 2000 ppm feed TDS or lower. Individual element performance may vary +/-20% from nominal specifications. Ensure system design accounts for 150 psi operating pressure and 15% recovery rate for optimal performance.
Lower Energy Costs
Reduced operating pressure means lower pump energy requirements and decreased long-term operational expenses
Commercial Durability
Hard shell design withstands demanding multi-element configurations in light industrial applications
Proven Technology
Dow Filmtec membranes deliver consistent performance backed by decades of reverse osmosis engineering expertise
Predictable Output
Stabilized 99.0% salt rejection with 2,500 GPD flow rate at specified test conditions for reliable system design
Filmtec BW30LE-4040 Brackish Water Low Energy Membrane
Designed for brackish water applications where energy costs matter
Low Energy Design
The BW30LE-4040 operates at significantly lower pressures than standard membranes, reducing energy consumption and operating costs while maintaining 2,500 GPD permeate flow at just 150 psi
99.0% Salt Rejection
Stabilized rejection rate removes dissolved salts, minerals, and contaminants from brackish water sources at 2000 ppm NaCl feed concentration with 15% recovery rate
Hard Shell Construction
Built with reinforced exterior designed for multi-element pressure vessels containing three or more membranes, withstanding higher pressure drops in commercial arrays
78 ft² Active Surface
Maximum membrane surface area in a 4" x 40" element format provides consistent performance in light industrial brackish water RO systems with optimal flow characteristics
Filmtec Quality Standard
Dow Filmtec engineering delivers reliable, tested performance in commercial brackish water applications. Previously designated as BW30LE-4040, same proven membrane technology
Tested performance parameters
System integration
The Filmtec BW30LE-4040 membrane fits standard 4-inch commercial reverse osmosis housings designed for 40-inch elements. Recommended for multi-element pressure vessels with three or more membranes due to hard shell construction. Compatible with brackish water RO systems operating at 2000 ppm feed TDS or lower. Individual element performance may vary +/-20% from nominal specifications. Ensure system design accounts for 150 psi operating pressure and 15% recovery rate for optimal performance.
Lower Energy Costs
Reduced operating pressure means lower pump energy requirements and decreased long-term operational expenses
Commercial Durability
Hard shell design withstands demanding multi-element configurations in light industrial applications
Proven Technology
Dow Filmtec membranes deliver consistent performance backed by decades of reverse osmosis engineering expertise
Predictable Output
Stabilized 99.0% salt rejection with 2,500 GPD flow rate at specified test conditions for reliable system design
Description
Filmtec BW30LE-4040 Brackish Water Low Energy Membrane
Designed for brackish water applications where energy costs matter
Low Energy Design
The BW30LE-4040 operates at significantly lower pressures than standard membranes, reducing energy consumption and operating costs while maintaining 2,500 GPD permeate flow at just 150 psi
99.0% Salt Rejection
Stabilized rejection rate removes dissolved salts, minerals, and contaminants from brackish water sources at 2000 ppm NaCl feed concentration with 15% recovery rate
Hard Shell Construction
Built with reinforced exterior designed for multi-element pressure vessels containing three or more membranes, withstanding higher pressure drops in commercial arrays
78 ft² Active Surface
Maximum membrane surface area in a 4" x 40" element format provides consistent performance in light industrial brackish water RO systems with optimal flow characteristics
Filmtec Quality Standard
Dow Filmtec engineering delivers reliable, tested performance in commercial brackish water applications. Previously designated as BW30LE-4040, same proven membrane technology
Tested performance parameters
System integration
The Filmtec BW30LE-4040 membrane fits standard 4-inch commercial reverse osmosis housings designed for 40-inch elements. Recommended for multi-element pressure vessels with three or more membranes due to hard shell construction. Compatible with brackish water RO systems operating at 2000 ppm feed TDS or lower. Individual element performance may vary +/-20% from nominal specifications. Ensure system design accounts for 150 psi operating pressure and 15% recovery rate for optimal performance.
Lower Energy Costs
Reduced operating pressure means lower pump energy requirements and decreased long-term operational expenses
Commercial Durability
Hard shell design withstands demanding multi-element configurations in light industrial applications
Proven Technology
Dow Filmtec membranes deliver consistent performance backed by decades of reverse osmosis engineering expertise
Predictable Output
Stabilized 99.0% salt rejection with 2,500 GPD flow rate at specified test conditions for reliable system design












