Datasheet summary
ESNA1-LF1-LD-4040
Engineering summary from PDF text extraction for ESNA1-LF1-LD-4040. Verify every value with the OEM datasheet.
Summary
Product identification
- Membrane Element: ESNA1-LF-LD-4040 (Low Fouling Technology)
- Type: Low Fouling Spiral Wound
- Membrane Polymer: Composite Polyamide
- Membrane Active Area: 80 ft² (7.43 m²)
- Feed Spacer: 34 mil (0.864 mm) with biostatic agent
Performance
- Permeate Flow: 1,600 gpd (6.1 m³/d)
- CaCl₂ Rejection: 92%
- CaCl₂ Rejection (minimum/maximum): 87% / 96%
- Expected calcium rejection for a typical 500 ppm well water: 96% at 13 gfd operating flux and 25 ºC.
Operating limits
- Maximum Applied Pressure: 600 psig (4.14 MPa)
- Maximum Chlorine Concentration: < 0.1 PPM
- Maximum Operating Temperature: 113 ºF (45 ºC)
- pH Range, Continuous (Cleaning): 2-10 (2-12)
- Maximum Feed Flow: 16 GPM (3.6 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): 5.0
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 ºF (25 ºC) Operating Temperature
- 15% Permeate Recovery
- 6.5 – 7.0 Feed pH
Mechanical / hydraulic
- A: 40.00 inches (1016 mm)
- B: 3.95 inches (100.3 mm)
- C: 0.75 inches (19.1 mm)
- Weight: 8 lbs. (3.6 kg)
- Core tube extension: 1.05" (26.7 mm)
Other notes
- Permeate flow for individual elements may vary -20 or +25 percent.
- 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.
Disclaimer: This summary is based solely on the provided text extract. It may not include all figures, footnotes, or the latest revisions present in the official OEM PDF. For contractual data and complete specifications, always refer to the specific OEM PDF revision used on your project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.