Datasheet summary
Compact Low 1
Engineering summary from PDF text extraction for Compact Low 1. Verify every value with the OEM datasheet.
Summary
Product identification
The Oltremare Compact LOW1 is a low energy, high rejection brackish water reverse osmosis membrane element. It features the same outstanding performance as the original LOW® (Energy Saving) element, combined with a plug-and-play design.
Membrane Characteristics
- Membrane Type: Polyamide
- Stabilized Salt Rejection: 99%(b) - 99.3%(c)
- Minimum Salt Rejection: 98%(b) – 99.0%(c)
| Model | Permeate Flow m³/day (gpd)(a) | Maximum Feed Flow m³/h (gpm) | Membrane Area m² (ft²) | Feed Spacer Thickness (mil) |
|---|---|---|---|---|
| Oltremare Compact LOW1 – 2514 | 0.7 (185) | 1.38 (6) | 0.6 (6) | 28 |
| Oltremare Compact LOW1 - 2521 | 1.4 (370) | 1.38 (6) | 1.1 (12) | 28 |
| Oltremare Compact LOW1 - 2540 | 3.03 (800) | 1.38 (6) | 2.6 (28) | 28 |
| Oltremare Compact LOW1 - 4014 | 2.3 (525) | 2.72 (12) | 1.8 (19) | 28 |
| Oltremare Compact LOW1 - 4021 | 4.4 (1150) | 2.72 (12) | 3.2 (35) | 28 |
| Oltremare Compact LOW1 - 4040 | 9.8 (2600) | 3.6 (16) | 7.9 (85) | 28 |
(a) Test conditions: 1500 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. (b) Minimum and stabilized salt rejection for modules from 2514 to 4021. (c) Minimum and stabilized salt rejection for modules 4040.
Operating limits
- Maximum Operating Pressure: 180 psi (12.4 bar)
- Maximum Operating Temperature: 45 °C (113 °F)
- Cleaning pH Range: 1.0 – 12.0 (d)
- Chlorine Tolerance: < 0.1 ppm (e)
- Maximum Pressure Drop: 0.7 bar (10 psi) per element; 4 bar (60 psi) per housing
- Maximum SDI₁₅: 5.0
- Maximum Turbidity: 1 NTU
(d) Refer to temperature and pH limits in Membrane Cleaning Guide - Water Application Elements (TSG-C-001). (e) 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 Membrane Operating Guide - Recommendations for Water Purification (TSG-O-012).
Mechanical / hydraulic
| Element | Weight lb (kg) | Dim. A mm (inches) | Dim. B mm (inches) | Dim. C mm (inches) | Dim. D mm (inches) | Dim. E mm (inches) |
|---|---|---|---|---|---|---|
| Oltremare Compact LOW1 – 2514 | 4.7 (2.1) | 417 (16.4) | 337 (13.25) | 80.5 (3.17) | 65 (2.56) | 130 (5.1) |
| Oltremare Compact LOW1 - 2521 | 6.6 (3) | 604 (22.8) | 534 (21) | 80.5 (3.1) | 65 (2.56) | 152 (6.0) |
| Oltremare Compact LOW1 - 2540 | 13.2 (3) | 1080 (42.5) | 1010 (39.8) | 80.5 (3.17) | 65 (2.56) | 130 (5.1) |
| Oltremare Compact LOW1 - 4014 | 11 (5) | 442 (17.40) | 361 (14.21) | 118 (4.65) | 104 (4.1) | 152 (6) |
| Oltremare Compact LOW1 - 4021 | 14 (6.4) | 624 (24.57) | 543 (21.38) | 118 (4.65) | 104 (4.1) | 165 (6.5) |
| Oltremare Compact LOW1 - 4040 | 25 (11.3) | 1110 (43.7) | 1029 (40.51) | 118 (4.65) | 104 (4.1) | 180 (7.1) |
The size must be considered in a range of ±3% except for the lengths (A and B) ±3‰. The modules are sealed with small screws (to be removed when used).
Important Information
- Start-up: We recommend flushing elements for 30 minutes at low pressure and discarding permeate during the flush prior to operation. For further information, please see Element Start-Up Guide – System Start-Up (TSG-O-005).
- Cleaning: Oltremare membrane elements must be cleaned periodically to ensure proper operation and to prevent membrane damage. Please see 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 Element Storage Guides (TSG-O-009 & TSG-O-01).
Disclaimer: This summary is based on the provided text extract. It 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.