Datasheet summary
Low 1
Engineering summary from PDF text extraction for Low 1. Verify every value with the OEM datasheet.
Summary
Product identification
The Oltremare LOW1 series consists of low energy, high rejection brackish water RO elements designed for consistent and continuous high performance. These spiral-wound membranes are available in standard 2.5" and 4" designs. They are suitable for various applications including drinking water production, industrial water, pharmaceutical water, wastewater treatment, and concentration of food and/or medicine.
Membrane Characteristics
- Membrane: RO
- Membrane Type: Polyamide
- Stabilized Salt Rejection (%): 99.4 (for modules from 2514 to 4021) - 99.5 (for module 4040)
- Minimum Salt Rejection (%): 98.0 (for modules from 2514 to 4021) – 99.2 (for module 4040)
Design Information
| Model | Permeate Flow m³/day (gpd) | Maximum Feed Flow m³/h (gpm) | Membrane Area m² (ft²) | Feed Spacer Thickness (mil) |
|---|---|---|---|---|
| Oltremare LOW1 – 2514 | 0.7 (185) | 1.38 (6) | 0.6 (6) | 28 |
| Oltremare LOW1 - 2521 | 1.4 (370) | 1.38 (6) | 1.1 (12) | 28 |
| Oltremare LOW1 - 2540 | 3.03 (800) | 1.38 (6) | 2.6 (28) | 28 |
| Oltremare LOW1 - 4014 | 2.3 (525) | 2.72 (12) | 1.8 (19) | 28 |
| Oltremare LOW1 - 4021 | 4.4 (1150) | 2.72 (12) | 3.2 (35) | 28 |
| Oltremare LOW1 - 4040 | 9.8 (2600) | 3.6 (16) | 7.9 (85) | 28 |
Note: Test conditions for permeate flow are 1,500 ppm NaCl, 10.3 bar (150 psi), 25°C (77°F), 15% recovery, pH 6.5 - 7, 30 minutes operation. Flow rates will be no more than 15% below the values shown.
Operating parameters
- Maximum Operating Pressure: 41 bar (600 psi) for fiberglassed elements, 20.7 bar (300 psi) for tape wrapped elements (models from 2514 to 4040 can be both fiberglassed and tape wrapped).
- Maximum Operating Temperature: 45 °C (113 °F)
- Cleaning pH Range: 1.0 – 12.0 (Refer to the Membrane Cleaning Guide for temperature and pH limits).
- Chlorine Tolerance: < 0.1 ppm (Pretreatment is recommended for the removal of free chlorine and other oxidizing agents to prevent damage to membranes. Oxidizing agents, such as free chlorine, in contact with polyamide membranes may result in shortened operating life or membrane failure. Such oxidation damage is excluded from warranty. Refer to the Membrane Operating Guide).
- Maximum Pressure Drop: 0.7 bar (10 psi) per element; 4 bar (60 psi) per housing
- Maximum SDI₁₅: 5.0
- Maximum Turbidity: 1 NTU
Physical Dimensions
| Model | Element Weight kg (lb) | Dim. A mm (inches) | Dim. B mm (inches) | Dim. C mm (inches) | Permeate Tube |
|---|---|---|---|---|---|
| Oltremare LOW1 – 2514 | 0.45 (1) | 355.6 (14) | 61 (2.4) | 19.1 (0.75) | Male |
| Oltremare LOW1 - 2521 | 0.9 (2) | 533.4 (21) | 61 (2.4) | 19.1 (0.75) | Male |
| Oltremare LOW1 - 2540 | 1.8 (4) | 1016 (40) | 61 (2.4) | 19.1 (0.75) | Male |
| Oltremare LOW1 - 4014 | 1.4 (3) | 355.6 (14) | 100.3 (3.95) | 19.1 (0.75) | Male |
| Oltremare LOW1 - 4021 | 1.8 (4) | 533.4 (21) | 100.3 (3.95) | 19.1 (0.75) | Male |
| Oltremare LOW1 - 4040 | 3.6 (8) | 1016 (40) | 100.3 (3.95) | 19.1 (0.75) | Male |
Note:
- Shipping weight is dependent on packaging material and quantity shipped.
- For female elements, “C” is the inner diameter. For male elements, “C” is the outer diameter.
- Male elements have a protruding permeate tube, indicated as “D” in the diagram. Dimension “D” is 30.5 mm (1.2 in) for modules from 2514 to 4021. For the 4040 module, it is 26.7 mm (1.05 in).
Important Information
- Start-up: It is recommended to flush elements for 30 minutes at low pressure and discard permeate during the flush prior to operation. Refer to the Element Start-Up Guide – System Start-Up (TSG-O-005) for further information.
- Cleaning: Oltremare membrane elements must be cleaned periodically to ensure proper operation and to prevent membrane damage. Please see the Membrane Cleaning Guide – Water Application Elements (TSG-C-001).
- Storage: Oltremare membrane elements must be stored appropriately to ensure proper operation and to prevent membrane damage. Please see the Element Storage Guides (TSG-O-009 & TSG-O-01).
Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions. For contractual data, always refer to the official OEM PDF document 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.