POLYMEX SW-4040HR is a 4040-size seawater reverse osmosis membrane designed for seawater desalination and high-TDS water treatment. It provides 85 ft² (7.9 m²) active membrane area, 1,500 GPD (5.7 m³/day) permeate flow, and 99.75% stable salt rejection.
POLYMEX SW-4040HR is a high-rejection seawater reverse osmosis membrane designed for seawater desalination and industrial treatment of high-salinity water. The membrane has an active membrane area of 85 ft² (7.9 m²) and a permeate flow capacity of 1,500 GPD (5.7 m³/day). With a stable rejection rate of 99.75%, the SW-4040HR is designed for applications requiring effective salt removal and high concentration performance. POLYMEX specifies the membrane for seawater desalination, landfill leachate and sewage wastewater treatment, high-salinity wastewater concentration, and minimal or zero liquid discharge systems. It is also specified for feed water with TDS above 10,000 mg/L.
Model: SW-4040HR Capacity: 1,500 GPD (5.7 m³/day)
Membrane Type: Seawater Reverse Osmosis (SWRO) Element Size: 4040 Active Membrane Area: 85 ft² (7.9 m²) Permeate Flow: 1,500 GPD (5.7 m³/day) Stable Salt Rejection: 99.75% Standard Test Feed: 32,000 mg/L NaCl Test Pressure: 800 psi (5.5 MPa) Test Temperature: 25°C Test pH: 7.5–8.0 Test Recovery: 8% Maximum Working Pressure: 1,200 psi (8.3 MPa) Maximum Feed Water Temperature: 45°C Maximum Feed Water Flow: 3.6 m³/h Maximum Feed Water SDI15: 5.0 Continuous Feed Water pH Range: 2–11 Chemical Cleaning pH Range: 1–13 Free Chlorine Tolerance: <0.1 mg/L Maximum Single Element Pressure Drop: 15 psi (0.1 MPa)
99.75% stable salt rejection 85 ft² active membrane area 1,500 GPD permeate capacity Compact 4040 membrane configuration Designed for seawater desalination Suitable for high-TDS feed water High rejection and concentration performance Stability and durability for industrial applications
Seawater desalination High-TDS water treatment Industrial wastewater treatment Landfill leachate treatment Sewage wastewater treatment High-salinity wastewater concentration Feed water with TDS above 10,000 mg/L Minimal Liquid Discharge (MLD) Zero Liquid Discharge (ZLD) systems
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