Datasheet summary
AK series
Engineering summary from PDF text extraction for AK series. Verify every value with the OEM datasheet.
Summary
Product identification
The AK Series of Low Energy Brackish Water RO Elements are part of the A-Series family of proprietary thin-film reverse osmosis (TFM) elements. They are designed for high flux and high sodium chloride rejection at low operating pressures, allowing for significant energy savings.
Testing conditions for performance specifications: 500 ppm NaCl solution at 115 psi (793 kPa) operating pressure, 77°F (25°C), pH 7.5, and 15% recovery. Average salt rejection is measured after 24 hours of operation. Individual flow rates may vary ±20%.
| Model | Average Permeate Flow gpd (m³/day) | Average NaCl Rejection | Minimum NaCl Rejection |
|---|---|---|---|
| AK2540TM | 750 (2.8) | 99.0% | 98.0% |
| AK4040C | 2,300 (8.7) | 99.0% | 98.0% |
| AK4040FM | 2,200 (8.3) | 99.0% | 98.0% |
| AK4040TM | 2,200 (8.3) | 99.0% | 98.0% |
| AK8040F | 10,000 (37.9) | 99.0% | 98.0% |
| AK8040F 400 | 11,000 (41.6) | 99.0% | 98.0% |
| AK8040F 440 | 12,000 (45.4) | 99.0% | 98.0% |
Mechanical / hydraulic
Element properties and dimensions are indicative and may vary within normal manufacturing tolerances.
| Model | Membrane Area ft² (m²) | Outer Wrap | Part Number |
|---|---|---|---|
| AK2540TM | 27 (2.5) | Tape | 1206802 |
| AK4040C | 90 (8.4) | Cage | 1223696 |
| AK4040FM | 85 (7.9) | Fiberglass | 3039082 |
| AK4040TM | 85 (7.9) | Tape | 3039149 |
| AK8040F | 365 (33.9) | Fiberglass | 3039160 |
| AK8040F 400 | 400 (37.2) | Fiberglass | 3039161 |
| AK8040F 440 | 440 (40.9) | Fiberglass | 3194308 |
Note: AK4040C elements do not feature a brine seal.
| Model | Type | Dimensions, Inches (cm) A | Dimensions, Inches (cm) B | Dimensions, Inches (cm) C | Boxed Weight lbs. (kg) |
|---|---|---|---|---|---|
| AK2540 | Male | 40.0 (101.6) | 0.75 (1.9) | 2.4 (6.1) | 5 (2.3) |
| AK4040C | Female | 40.0 (101.6) | 0.625 (1.59) | 3.9 (9.9) | 9 (4) |
| AK4040FM | Male | 40.0 (101.6) | 0.75 (1.9) | 3.9 (9.9) | 9 (4) |
| AK4040TM | Male | 40.0 (101.6) | 0.75 (1.9) | 3.9 (9.9) | 9 (4) |
| AK8040F | Female | 40.0 (101.6) | 1.125 (2.86) | 7.9 (20.1) | 35 (16) |
| AK8040F 400 | Female | 40.0 (101.6) | 1.125 (2.86) | 7.9 (20.1) | 35 (16) |
| AK8040F 440 | Female | 40.0 (101.6) | 1.125 (2.86) | 7.9 (20.1) | 35 (16) |
For AK4040C, dimension 'A' includes the interconnector. Element Dimensions Diagrams (Female and Male types) are available in the full document.
Operating limits
- Typical Operating Pressure: 100 psi (689 kPa)
- Typical Operating Flux: 10-20 GFD (15-35 LMH)
- Maximum Operating Pressure: 600 psi (4,136 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 x hours, dechlorination recommended
Feed water
- NTU < 1
- SDI₁₅ < 5
Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the original PDF datasheet. For contractual data, 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.