ESNA1-LF2-LD-8040

Summary

Product identification

• Membrane Element: ESNA1-LF2-LD (Low Fouling Technology)
• Type: Low Fouling Spiral Wound
• Membrane Polymer: Composite Polyamide
• Membrane Active Area: 400 ft² (37.1 m²)
• Feed Spacer: 34 mil (0.864 mm)

Operating limits

• Maximum Applied Pressure: 600 psig (4.16 MPa)
• Maximum Chlorine Concentration: < 0.1 PPM
• Maximum Operating Temperature: 113 F (45 C)
• pH Range, Continuous (Cleaning): 2-10 (1-12)
• Maximum Feed Flow: 75 GPM (17.0 m³/h)
• Minimum Ratio of Concentrate to Permeate Flow for any Element: 5:1
• Maximum Pressure Drop for Each Element: 10 psi

Feed water

• Maximum Feedwater Turbidity: 1.0 NTU
• Maximum Feedwater SDI (15 mins): 4.0

Product water

• Permeate Flow: 10,500 gpd (39.7 m³/d)
• CaCl₂ Rejection: 86%
• CaCl₂ Rejection (minimum/maximum): 83%/90%
• Expected calcium rejection for a typical 500 ppm well water is 93% at 13 gfd operating flux and 25 C.
• Permeate flow for individual elements may vary -20/+25 percent.

Mechanical / hydraulic

• Dimensions:
  • A: 40.0 inches (1016 mm)
  • B: 7.89 inches (200 mm)
  • C: 1.125 inches (28.6 mm)
• Weight: 36 lbs. (16.4 kg)
• Membrane active area may vary +/-4%.
• All membrane elements are supplied with a brine seal, interconnector, and o-rings.
• Elements are vacuum sealed in a polyethylene bag containing less than 1.0% sodium bisulfite solution, and then packaged in a cardboard box.

Performance Test Conditions

The stated performance is initial (data taken after 30 minutes of operation), based on the following conditions:

• 500 ppm CaCl₂
• 75 psi (0.52 MPa) Applied Pressure
• 77 F (25 C) Operating Temperature
• 15% Permeate Recovery
• 6.5 – 7.0 Feed pH

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Disclaimer: This summary is based on the provided text extraction and may not include all figures, footnotes, or the latest revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet