CSM RE4040-BLN RO Membrane

CSM RE4040-BLN Low Pressure RO Membrane High-Performance Low Pressure 4" × 40" Reverse Osmosis Membrane CSM RE4040-BLN is a high flow, low-pressure reverse osmosis membrane designed for commercial and industrial water purification applications. Manufactured by Toray Advanced Materials Korea under the CSM membrane brand, this 4 inch RO membrane delivers excellent salt rejection and high permeate flow while operating at lower pressures to help reduce energy consumption. Specifications Parameter CSM RE4040-BLN Permeate flow 2,600 GPD (9.8 m³/day) Nominal salt rejection 99.4% Minimum salt rejection 99.3% Membrane area 85 ft² (7.9 m²) Test pressure 150 psi (10.3 bar) Test salinity 1,500 ppm NaCl Maximum feed water TDS 3,000 ppm NaCl Maximum temperature 45°C Certification NSF/ANSI/CAN 61 Permeate flow and rejection ratings are based on manufacturer test conditions. Actual performance varies with feed-water quality, operating pressure, temperature and recovery rate. Pre-treatment must be used to protect the membrane (softener, antiscalant dosing pump, sand filter, carbon filter, 5 mic cartridge fitler ...etc). About CSM CSM is a leading membrane brand manufactured by Toray Advanced Materials Korea, with decades of experience in membrane technology since 1994. CSM specialises in high-performance Reverse Osmosis (RO), Nanofiltration (NF) and Ultrafiltration (UF) membranes for residential, commercial and industrial water treatment applications. Known for their quality, reliability and advanced technology, CSM membranes are widely used in water purification, seawater desalination, ultrapure water production and wastewater recycling worldwide. Features and Benefits Low Pressure Operation: Designed to operate efficiently at lower feed pressures, reducing energy requirements. High Permeate Flow: Produces up to 2,600 GPD (9.8 m³/day) under standard test conditions. Excellent Salt Rejection: Nominal 99.4% NaCl rejection for reliable water purification. Energy Efficient: Helps reduce operating costs compared with conventional higher-pressure RO membranes. Standard 4040 Size: Suitable for compatible 4" x 40" commercial and industrial RO membrane housings. Reliable Performance: Designed for consistent water quality and efficient operation.. Manufactured by Toray Advanced Materials Korea – CSM reverse osmosis membrane technology. NSF/ANSI/CAN 61 certification – as indicated in the manufacturer’s product literature. Typical Applications The CSM RE4040-BLN membrane is suitable for a variety of water treatment applications, including: Drinking water. Commercial reverse osmosis water purification systems Industrial process water treatment Brackish groundwater desalination Boiler feed-water pretreatment Water treatment for manufacturing facilities Food and beverage process-water preparation Water purification for agricultural and irrigation applications Replacement membranes for compatible 4040 RO systems Pure water for pharmaceuticals, laboratories, Hemodialysis and electronics Operating Limits – CSM RE4040-BLN Parameter Operating Limit Maximum Pressure Drop per Element 15 psi (0.10 MPa) Maximum Pressure Drop per 240" Vessel 60 psi (0.41 MPa) Maximum Operating Pressure 600 psi (4.14 MPa) Maximum Feed Flow Rate 18 GPM (4.09 m³/h) Minimum Concentrate Flow Rate 4 GPM (0.91 m³/h) Maximum Operating Temperature 45°C (113°F) Operating pH Range 2.0–11.0 CIP Cleaning pH Range 1.0–13.0 Maximum Feed Water Turbidity 1.0 NTU Maximum SDI (15 minutes) 5.0 Maximum Free Chlorine Concentration <0.1 mg/L Download CSM RE4040-BLN Data Sheet Alternative 4040 Reverse Osmosis Membranes The CSM RE4040-BLN is a high-rejection, 4" × 40" brackish water reverse osmosis membrane. Depending on the existing RO system design and operating conditions, it is considered as an alternative to: DuPont (DOW): FilmTec XLE-4040 / XLE PRO-4040 Hydranautics: ESPA Series, ESPA1-LD-4040, ESPA2-LD-4040, ESPA4-LD-4040 Toray: TMG10D LG BW 4040 ES GE Osmonics / SUEZ: SUEZ AG-85 P LE 4040 (formerly LewaBrane B085 LE 4040), SUEZ AG4040C Vontron ULP21-4040 Important: These models are potential alternatives. Permeate flow, salt rejection, operating pressure and physical connections may differ. Please check the manufacturer's datasheets and confirm compatibility before ordering. MDC Water can assist with membrane selection and replacement compatibility for commercial and industrial RO systems.