When high performance counts, CPA (Composite Polyamide) membranes from Hydranautics set the standard for RO membrane elements. CPA membranes provide the highest salt rejection rates available - every element on every order for every customer.
Brackish High Rejection
CPA2 – “The Workhorse” Most widely used with consistent performance
CPA3 – Best combination of productivity and salt rejection available
|
Model No. |
Size |
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 |
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 product specification sheets for the test conditions under which the stated performance are based, and exact membrane element dimensions.
- Up to 99.7% Nominal Rejection
- High TOC, silica and hardness rejection
- High permeate flow
- High rejection of boron – up to 92%
- Lowest biological and colloidal fouling
- Greater tolerance to high pH cleanings
- Lower energy consumption
- Enhanced Membrane Chemistry for Increased Chemical Resistance
- Innovative Spacer Design to Minimize Trapping of Small Colloidal Particles
- HYDRAblock Technology Providing Biostatic Properties to Minimize Proliferation of Biological Fouling
- Proprietary Vented Seal Carrier to Eliminate Pressure-Shock Damage During System Startup
- Desalting of Well Waters – Municipal Drinking Water
- Reducing TDS Prior to Ion Exchange
- Ultrapure Water For Semiconductor Manufacture
- Boiler makeup water for power generation
- Ultrapure water for pharmaceutical industries
- Industrial waste water recycling
- Zero liquid discharge/HERO process