ESPA1 Series Hydranautics RO Membrane Elements
High Productivity, energy saving reverse osmosis membranes.
| Model No. | Size (Dia.”× Length”) | Flow Rate | Test Pressure (psi) | Nominal Salt Rejection (%) | Minimum Salt Rejection (%) | |
| gpd | m³/d | |||||
| ESPA-2514 | 2.5” × 14” | 250 | 0.9 | 150 | 99.4 | 98.0 |
| ESPA-2521 | 2.5” × 21” | 350 | 1.3 | 150 | 99.4 | 98.0 |
| ESPA-2540 | 2.5” × 40” | 750 | 2.8 | 150 | 99.4 | 98.0 |
| ESPA-4014 | 4” × 14” | 500 | 1.9 | 150 | 99.4 | 98.0 |
| ESPA-4021 | 4” × 21” | 1,000 | 3.8 | 150 | 99.4 | 98.0 |
| ESPA1-LD-4040 | 4” × 40” | 2,450 | 9.27 | 150 | 99.4 | 99.2 |
| ESPA1 | 8” × 40” | 12,000 | 45.4 | 150 | 99.3 | 99.0 |
ESPA2 Series Hydranautics RO Membrane Elements
ESPA2 product family offers new technology for higher productivity and rejection; minimizes bio-fouling & colloidal fouling and features and enhanced cleanability. The ESPA2 MAX features increased surface area for higher permeate production.
| Model No. | Size (Dia.”× Length”) | Flow Rate | Test Pressure (psi) | Nominal Salt Rejection (%) | Minimum Salt Rejection (%) | |
| gpd | m³/d | |||||
| ESPA2-4040 | 4” × 40” | 1,900 | 7.2 | 150 | 99.6 | 99.4 |
| ESPA2-LD-4040 | 4” × 40” | 2,000 | 7.6 | 150 | 99.6 | 99.4 |
| ESPA2 | 8” × 40” | 9,000 | 34.1 | 150 | 99.6 | 99.5 |
| ESPA2-LD | 8” × 40” | 10,000 | 37.9 | 150 | 99.6 | 99.5 |
| ESPA2MAX | 8” × 40” | 12,000 | 45.4 | 150 | 99.6 | 99.5 |
ESPA3 Series Hydranautics RO Membrane Elements
ESPA3 Series membrane elements offer the highest product water flow rates of the Hydranautics ESPA family of membrane elements.
| Model No. | Size (Dia.”× Length”) | Flow Rate | Test Pressure (psi) | Nominal Salt Rejection (%) | Minimum Salt Rejection (%) | |
| gpd | m³/d | |||||
| ESPA3-4040 | 4” × 40” | 3,000 | 11.4 | 150 | 98.5 | 98.0 |
ESPA4 Series Hydranautics RO Membrane Elements
ESPA 4 Series membrane elements feature a lower operating pressure, resulting in lower operating costs, while maintaining high productivity and a minimum salt rejection of 99%.
| Model No. | Size (Dia.”× Length”) | Flow Rate | Test Pressure (psi) | Nominal Salt Rejection (%) | Minimum Salt Rejection (%) | |
| gpd | m³/d | |||||
| ESPA4-LD-4040 | 4” × 40” | 2,500 | 9.5 | 100 | 99.2 | 99.0 |
| ESPA4 | 8” × 40” | 12,000 | 45.4 | 100 | 99.2 | 99.0 |
| ESPA4-LD | 8” × 40” | 12,000 | 45.4 | 100 | 99.2 | 99.0 |
| ESPA4MAX | 8” × 40” | 13,200 | 50.0 | 100 | 99.2 | 99.0 |
ESPAB Series Boron Removal Hydranautics RO Membrane Elements
ESPA B boron removing elements provide a new option for communities where boron levels are naturally high or for manufacturers challenged by boron contamination issues.
| Model No. | Size (Dia.”× Length”) | Flow Rate | Test Pressure (psi) | Salt Rejection (%) | Ave. Boron Rej. (%@10psi) | ||
| gpd | m³/d | Nominal | Minimum | ||||
| ESPABMAX | 8” × 40” | 9,000 | 34.1 | 150 | 99.3 | 99 | 99.6 |
Please see product specification sheets for the test conditions under which the stated performance are based, and exact membrane element dimensions.
CPA2 – “The Workhorse” Most widely used with consistent performance
CPA3 – Best combination of productivity and salt rejection available
| Model No. | Size(Dia.”× Length”) | Flow Rate | Test Pressure (psi) | Nominal Salt Rejection (%) | Minimum Salt Rejection (%) | |
| gpd | m³/d | |||||
| CPA2-4040 | 4” × 40” | 2,250 | 8.5 | 225 | 99.5 | 99.2 |
| CPA2 | 8” x 40” | 10,000 | 37.9 | 225 | 99.7 | 99.5 |
| CPA3 | 8” × 40” | 11,000 | 41.6 | 225 | 99.7 | 99.6 |
CPA5-LD Series – New technology minimizing bio-fouling and colloidal fouling and enhancing cleanability.
Where ultrahigh purity water is required under difficult feedwater conditions, the CPA5-LD gives the most desirable combination of high rejection and high flow. For industries such as power, semiconductor, food and beverage, where high purity water is critical to operations, CPA5-LD gives you the most desirable combination of performance and efficiency. CPA5-LD helps reduce RO system power consumption and the membrane resistance to biological and colloidal fouling helps reduce the number of cleanings required, lowering the overall cost of your operation.
| Model No. | Size(Dia.”× Length”) | Flow Rate | Test Pressure (psi) | Nominal Salt Rejection (%) | Minimum Salt Rejection (%) | |
| gpd | m³/d | |||||
| CPA5-LD-4040 | 4” × 40” | 2,100 | 7.95 | 225 | 99.7 | 99.5 |
| CPA5-LD | 8” × 40” | 11,000 | 41.6 | 225 | 99.7 | 99.6 |
| CPA5MAX | 8” × 40” | 12,000 | 45.4 | 225 | 99.7 | 99.6 |
Please see the product specification sheets for the test conditions under which the stated performance is based and the exact membrane element dimensions.
LFC-3-LD Membrane Elements with Hydranautics LD Technology™ innovative low-fouling membranes combine the attributes of a neutrally charged surface with hydrophilicity to achieve the lowest organic and colloidal fouling in the most demanding Feedwater conditions. Hydranautics LFC3-LD membrane elements are designed with a thicker brine spacer lowering the Delta P meeting the increased demand for lower fouling membranes that require less frequent cleanings while maintaining a high permeate flow.
| Model No. | Size (Dia.”× Length”) | Flow Rate | Test Pressure (psi) | Nominal Salt Rejection (%) | Minimum Salt Rejection (%) | |
| gpd | m³/d | |||||
| LFC3-LD-4040 | 4” × 40” | 2,100 | 7.95 | 225 | 99.7 | 99.5 |
| LFC3-LD | 8” × 40” | 11,000 | 41.6 | 225 | 99.7 | 99.5 |
Please see the product specification sheets for the test conditions under which the stated performance is based, and the exact membrane element dimensions.
Superior membrane technology is the key to Hydranautics’ innovative LFC (Low Fouling Composite) membranes. LFC3-LD membranes offer breakthrough technology in the treatment of difficult feedwaters and municipal wastewaters. Until now, these applications required significant pretreatment prior to being subjected to a composite polyamide membrane, which is eliminated with the use of the LFC3-LD membrane.
Performance Details & Ordering Information for Hydranautics SWRO Membrane Elements
SWC4 Series Seawater RO Membranes Highest Boron Rejection Available (95% average)
| Model No. | Size(Dia.”× Length”) | Flow Rate | Test Pressure(psi) | Nominal Salt Rejection (%) | Minimum Salt Rejection (%) | |
| gpd | m³/d | |||||
| SWC4BMAX | 8” × 40” | 7,200 | 27.3 | 800 | 99.8 | 99.7 |
SWC5 Series Seawater RO Membranes Lower Fouling for Maximum Performance
| Model No. | Size(Dia.”× Length”) | Flow Rate | Test Pressure(psi) | Nominal Salt Rejection (%) | Minimum Salt Rejection (%) | |
| gpd | m³/d | |||||
| SWC5-LD-4040 | 4” × 40” | 1,750 | 6.6 | 800 | 99.7 | 99.5 |
| SWC5-LD | 8” × 40” | 9,000 | 34.1 | 800 | 99.8 | 99.7 |
| SWC5MAX | 8” × 40” | 9,900 | 37.5 | 800 | 99.8 | 99.7 |
SWC6 Series Seawater RO Membranes Highest Permeate Flow Rate Available with 91% Average Boron Rejection
| Model No. | Size(Dia.”× Length”) | Flow Rate | Test Pressure(psi) | Nominal Salt Rejection (%) | Minimum Salt Rejection (%) | |
| gpd | m³/d | |||||
| SWC6-4040 | 4” × 40” | 2,500 | 7.2 | 800 | 99.7 | 99.5 |
| SWC6 | 8” × 40” | 12,000 | 45.5 | 800 | 99.8 | 99.7 |
| SWC6MAX | 8” × 40” | 13,200 | 50 | 800 | 99.8 | 99.7 |
Please see the product specification sheets for the test conditions under which the stated performance is based, and the exact membrane element dimensions.
