ESPA1-LD-4040

Summary

Product identification

The product is a Low Fouling Spiral Wound reverse osmosis membrane element, model ESPA1-LD-4040.

• Configuration: Low Fouling Spiral Wound
• Membrane Polymer: Composite Polyamide
• Membrane Active Area: 80 ft² (7.43 m²)
• Feed Spacer: 34 mil (0.86 mm)

All membrane elements are supplied with a brine seal, interconnector, and O-rings. Elements are enclosed in a sealed polyethylene bag containing less than 1.0% sodium meta-bisulfite solution, and then packaged in a cardboard box.

Specified Performance

Performance data based on a minimum of 10 minutes of operation. Permeate flow for individual elements may vary ±15 percent from the specified value.

• Permeate Flow: 2,450 gpd (9.27 m³/d)
• Salt Rejection: 99.4% (99.2% minimum)

Test Conditions:

• 1500 ppm NaCl solution
• 150 psig (1.05 MPa) Applied Pressure
• 77 °F (25 °C) Operating Temperature
• 15% Permeate Recovery
• 6.5 - 7.0 pH Range

Mechanical / hydraulic

(Values listed are indicative, not specified. For more detailed specifications, refer to official Technical Service Bulletins.)

• Length (A): 40.0 inches (1016 mm)
• Diameter (B): 3.95 inches (100.3 mm)
• Core tube inner diameter (C): 0.75 inches (19.1 mm)
• Core tube extension: 1.05 inches (26.7 mm)

Element weight values are as shipped from the factory. Elements that are used and then gravity drained may still contain at least an additional 2 lbs. (1 kg) of liquid.

Operating limits

(The limitations shown here are for general use. For specified projects, operation at more conservative values may ensure the best performance and longest life of the membrane.)

• Maximum Applied Pressure: 600 psig (8.27 MPa)
• Maximum Chlorine Concentration: < 0.1 ppm
• Maximum Operating Temperature: 113 °F (45 °C)
• pH Range, Continuous (Cleaning): 2-10 (1-12)
• Maximum Feedwater Turbidity: 1.0 NTU
• Maximum Feedwater SDI (15 mins): 5.0
• Maximum Feed Flow: 16 gpm (3.6 m³/h)
• Minimum Brine Flow: 3 gpm (0.7 m³/h)
• Maximum Pressure Drop for Each Element: 15 psi (0.10 MPa)

Disclaimer

The information and data are presented in good faith and in lieu of all warranties. All express or implied warranties, including the warranties of merchantability and fitness for a particular purpose, are hereby disclaimed and excluded. Conditions and methods of use of our products are beyond our control. Hydranautics assumes no liability for results obtained or damages incurred through the application of the presented information and data. It is the user's responsibility to determine the appropriateness of Hydranautics' products for the user's specific end uses.

Official datasheet (PDF)

PDF datasheet