BW Membrane
Model: 4040
Max. Working Pressure: 600 Psi
Replace: Every 24 months or as needed
Salt Rejection: 98.8%
Max. Feedwater Temperature: 45°C
Max. Feedwater SDI: 5
Maximum Feed Water Turbidity: 1 NTU
The BW Membrane stands as a cornerstone of reliability in commercial and residential drinking water purification, leveraging cutting-edge reverse osmosis technology to deliver unmatched filtration performance. Engineered for equipment suppliers, water treatment specialists, and end-users alike, this membrane combines advanced automated manufacturing processes with robust materials to ensure consistent, long-term efficiency. Operating at a standard pressure of 60 psi, the BW Membrane outperforms competitors by purifying 20% more water under identical conditions, maximizing output while minimizing energy consumption. Its dry-shipping design guarantees convenience in handling and extended shelf life, preserving membrane integrity until installation.
With the BW-4040 model producing 2,400 GPD at 100 psi, the membrane maintains remarkable adaptability. Even at a reduced pressure of 60 psi-a 40% drop-it still yields approximately 1,440 GPD, showcasing its resilience in fluctuating operational environments. This pressure-flexible performance makes it ideal for commercial facilities, residential complexes, and small-scale treatment plants prioritizing both high-volume output and cost efficiency.

4040 BW Membrane specification
|
Model No. |
Feed Spacer |
Min. Salt |
Stabilized Salt |
Permeate |
Test |
Test water |
|
TW-4040XLE |
28 |
97.5 |
98 |
2600 |
100 |
750 |
|
TW-4040ULP |
31 |
98.2 |
98.8 |
2400 |
150 |
1000 |
|
BW-4040LP |
31 |
98.6 |
99.2 |
2400 |
225 |
1500 |
|
BW-4040AF |
34 |
98.7 |
99.2 |
2100 |
225 |
2000 |
Operating Limits:
|
Model No. |
Maximum |
Maximum |
Feed Water |
Maximum Feed |
Maximum |
Chlorine |
|
TW-4040XLE |
45℃ |
300psi |
2-11 |
1NTU |
5 |
<0.1ppm |
|
TW-4040ULP |
45℃ |
600psi |
2-11 |
1NTU |
5 |
<0.1ppm |
|
BW-4040LP |
45℃ |
600psi |
2-11 |
1NTU |
5 |
<0.1ppm |
|
BW-4040AF |
45℃ |
600psi |
2-11 |
1NTU |
5 |
<0.1ppm |
BW Membrane features
- High-TDS Water Resilience: The BW Membrane excels in treating challenging high-TDS water sources (5,000ppm), maintaining superior contaminant rejection rates even under extreme salinity conditions for reliable purification.
- Precision Layered Engineering: Featuring a state-of-the-art thin-film composite design with precision-engineered polymer layers, it ensures enhanced filtration accuracy and structural durability for long-term performance.
- Low-Maintenance Efficiency: Its anti-fouling surface technology minimizes scaling and organic buildup, reducing cleaning cycles and extending service intervals to lower operational downtime.
- Shelf-Life Maximization: Shipped in 100% dry, vacuum-sealed packaging, the membrane retains optimal functionality during storage and transport, guaranteeing readiness for immediate deployment.


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