Datasheet summary
AK LE series
Engineering summary from PDF text extraction for AK LE series. Verify every value with the OEM datasheet.
Summary
Product identification
The AK LE Series features high-flux, low-energy reverse osmosis (RO) elements designed for brackish water applications. These thin-film composite (TFM) elements are characterized by high flux, high sodium chloride (NaCl) rejection, and ultra-low operating pressures. They are suitable for beverage, light commercial, residential, and general industrial applications, and feature a Fiberglass outer wrap.
Product water
The AK LE elements are specified with the following performance characteristics based on testing conditions of 500 ppm NaCl solution at 115 psi (793 kPa) operating pressure, 77°F (25°C), pH 7, and 15% recovery. Average salt rejection is measured after 24 hours of operation, and individual flow rates may vary ±20%.
- Membrane: A-Series, Thin-film membrane (TFM)
| Model | Average permeate flow gpd (m³/day) | Average NaCl rejection | Minimum NaCl rejection |
|---|---|---|---|
| AK-90 LE | 2,600 (9.8) | 99.3% | 99.0% |
| AK-400 LE, 34 | 12,100 (45.8) | 99.3% | 99.0% |
| AK-440 LE | 13,300 (50.3) | 99.3% | 99.0% |
Operating limits
- Typical Operating Pressure: 110 psi (758 kPa)
- Typical Operating Flux: 10-20 GFD (15-35 LMH)
- Maximum Operating Pressure: 400 psi (2,758 kPa)
- Maximum Temperature:
- Continuous operation: 122°F (50°C)
- Clean-In-Place (CIP): 122°F (50°C)
- pH Range:
- Optimum rejection: 7.0-7.5
- Continuous operation: 2.0-11.0
- Clean-In-Place (CIP): 1.0-13.0
- Maximum Pressure Drop:
- Over an element: 15 psi (103 kPa)
- Per housing: 50 psi (345 kPa)
- Chlorine Tolerance: 1,000+ ppm-hours (dechlorination recommended)
Feed water
- NTU: < 1
- SDI₁₅: < 5
Mechanical / hydraulic
The elements feature a Fiberglass outer wrap. Dimensional diagrams are available for both female and male connector types (Figures 1 and 2 in the original PDF).
| Model | Active area ft² (m²) | Outer wrap | Part number |
|---|---|---|---|
| AK-90 LE | 90 (8.4) | Fiberglass | 3056683 |
| AK-400 LE, 34 | 400 (37.2) | Fiberglass | 3056684 |
| AK-440 LE | 440 (40.9) | Fiberglass | 3056685 |
| Model | Type | Dimensions, inches (cm) A | Dimensions, inches (cm) B | Dimensions, inches (cm) C | Boxed Weight lbs. (kg) |
|---|---|---|---|---|---|
| AK-90 LE | Male | 40.0 (101.6) | 0.75 (1.90) | 3.9 (9.9) | 9 (4) |
| AK-400 LE, 34 | Female | 40.0 (101.6) | 1.125 (2.86) | 7.9 (20.1) | 35 (16) |
| AK-440 LE | Female | 40.0 (101.6) | 1.125 (2.86) | 7.9 (20.1) | 35 (16) |
Disclaimer This summary is based on the provided text extract and may not include all figures, footnotes, or the latest revisions from the original OEM PDF datasheet. For contractual data, please 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.