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BW4040 Reverse Osmosis RO Membrane 4040
Ultra Low Pressure RO Membrane Element – ULP Series
Suitable for desalting those water sources TDS lower than 2000 ppm, such as surface water, underground water, tap water and municipal water, etc
Brackish Water RO Element – BW Series
Suitable for desalting surface water, underground water, tap water and municipal water, etc. TDS under 3000ppm.
ULP-4040 is one of China Frotec Model.
Model | Active Membrane Area ft² (m²) | Average Pereate GPD (m³/d) | Operating Pressure PSI (Mpa) | Rejection Rate (%) |
ULP-4021 | 36(3.3) | 1000 (3.8) | 150 (1.05) | ≥ 99.0 |
BW-4021 | 36(3.3) | 900 (3.6) | 225 (1.55) | ≥ 99.5 |
ULP-4040 | 78(7.2) | 2500 (9.8) | 150 (1.05) | ≥ 99.0 |
BW-4040 | 78(7.2) | 2500 (9.8) | 225 (1.55) | ≥ 99.5 |
ULP-8040 | 400(37.2) | 10500 (39.7) | 150 (1.05) | ≥ 99.0 |
BW-8040 | 400(37.2) | 10500 (39.7) | 225 (1.55) | ≥ 99.5 |
Testing Condition
Testing Pressure………………………………………………… 150psi (1.03MPa) ULP
225psi (1.55MPa) BW
Testing Solution Temperature………………………………….. 25℃
Testing Solution Concentration (NaCl)………………………… 2000ppm
PH Value of Testing Solution……………………………………. 7.5-8
Single Element Recovery………………………………………. 15%
Extreme Working Conditions
Max Operation Pressure………………………………………… 600psi (4.14MPa)
Max Feeding Water Temperature………………………………. 45℃
Max Feeding Water SDI15 ……………………………………… 5.0
Feeding Water Free Chlorine…………………………………… <0.1mg/L
Feeding Water PH Range During Continuous Running Process... 3 ~ 10
Feeding Water PH Range During Chemical Washing……….. 2 ~ 12
Single Element Max Pressure Drop …………………………… 10psi (0.07MPa)




1 pieces is packed in carton box. By sea or By Air.
By sea in Shanghai Guangzhou Tianjin Ningbo
By Air on TNT, DHL, FEDEX, Aramex
Delivery time: 5-10 days

Technology from USA
To support you technology and suggest design.
We have 6 technology wokers and 60 producing workers.
24 hours service.
No holiday in the whole Year for Customer
Suzhou RunMo Water Treatment Technology Co.,Ltd. is located in Economic and Technological Development District Wujiang District Suzhou City Jiangsu Province. We are aimed to Research and development to manufacture Reverse osmosis membrane and Ultrafiltration Membrane, different material of Ultrafiltration membrane, MBR Membrane. RunMo has been built good relationship with USA, Singapore, Japan famous company to research and produce items. Reverse osmosis membrane has been used USA Technology, can produce different RO membrane for different Raw water, temperature and application requires. RunMo has 7500 Square Meter Production workshop, Annual output is about 8inch 10,0000 pieces, 4inch 17,0000pieces. Profeesional, Focus, Concentr ate are all company mission!

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