ESPA B-1640

Summary

Product identification

• Membrane Element: ESPAB 1640
• Configuration: Spiral Wound
• Membrane Polymer: Composite Polyamide
• Membrane Active Area: 1700 ft² (158 m²)
• Feed Spacer: 28 mil (0.71 mm)

Performance

• Permeate Flow: 34,000 gpd (128.7 m³/d)
• Salt Rejection: 99.3% (99.1% minimum)
• Boron Rejection (Average) @ pH = 10: 96.0 %†

Operating limits

• Maximum Applied Pressure: 600 psig (4.14 MPa)
• Maximum Chlorine Concentration: < 0.1 PPM
• Maximum Operating Temperature: 113 °F (45 °C)
• pH Range, Continuous (Cleaning): 2.0 - 10.6 (1-12)
• Maximum Feedwater Turbidity: 1.0 NTU
• Maximum Feedwater SDI (15 mins): 5.0
• Maximum Feed Flow: 250 GPM (56 m³/h)
• Minimum Ratio of Concentrate to Permeate Flow for any Element: 5:1
• Maximum Pressure Drop for Each Element: 10 psi

Test Conditions

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

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

Mechanical / hydraulic

• A, inches (mm): 40.9 (1038.9)
• B, inches (mm): 15.8 (401.8)
• C, inches (mm): 3.000 (76.2)
• Dry Weight, lbs. (kg): 114 (51.7)
• Wet, Drained Weight, lbs (kg): 139 (63)

Notes

• Permeate flow for individual elements may vary +20% / -15%.
• Membrane active area may vary ±4%.
• 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.
• †When tested at standard test conditions with 10.0 ppm Boron at pH = 10.0.

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Disclaimer: This summary is based on the provided text extract and may not include all figures, footnotes, or the latest revisions present in the official PDF datasheet. For contractual data, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

PDF datasheet