ANGEL RO 4040 commercial reverse osmosis membrane is an economical choice. It provides absolute-rated efficiency, a high flow rate, and a long service life.The membrane is suitable for water purification applications of water sources with salt concentration lower than 2000 ppm, such as surface water, underground water, tap water and municipal water. ANGEL RO 4040 ultra low pressure RO membrane delivers high permeate flows and salt rejection at lower raw water pressures, compared to regular low-pressure membrane elements. The high salt rejection and low working pressure result in up to 30% lower energy consumption compared to standard elements.
Ultra-low pressure operation
Help reducing energy costs.
Operates at 150 psi, saving up to 30% on energy and system infrastructure costs.
Wide feed spacer minimizes fouling
Standard 4 x 40 size
Easy retrofit compatibility, fits all standard 4040membrane
High salt rejection
Ensure high-purity filtrate (up to 99.5%)
Model | RO-4040 |
Stable Rejection Rate | 99.5% |
Permeate Flow | 2,600 GPD (9.8 m³/day) |
Active Membrane Area | 100 ft² (9.3 m²) |
Feed Spacer Thickness | 28 mil |
Operating Pressure | 150 psi (1.03 MPa) |
Temperature | 77°F (25°C) |
Recovery Rate | 15% |
Minimum Salt Rejection | 99% |
Diameter / Length | 4 inch / 40 inch |
pH | 7.0 ± 0.5 |