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Low Pressure

The growing family of LOW RO elements continue to meet the ever-increasing demands of the water treatment industry. Users worldwide have made LOW their first choice for high productivity and salt rejection.

LOW1, LOW2, LOW3 and LOW4 have long been the industry leaders, with the highest productivity and rejection available.

Compared to other desalination processes, the use of reverse osmosis elements shows improvements in performance and cost-efficiency.

However, because energy costs required for the operation of the RO system takes up a large portion of the whole maintenance fee, continued efforts are being made to overcome this problem.
By using low pressure elements, we can achieve same performance rates as other regular RO elements but requiring only two-thirds of the pressure.

Therefore, RO systems installed with low pressure elements require less energy and operating costs.

High Productivity Energy Saving Polyamide Elements
Model Type Nominal Salt Rejection, % Permeate Flow, GPD Test * PDF
LOW1-2514 99,0% 185 A Download
LOW1-2521 99,0% 370 A Download
LOW1-2540 99,1% 800 A Download
LOW1-4014 99,0% 600 A Download
LOW1-4021 99,0% 1080 A Download
LOW1-4040 99,3% 2600 B Download
LOW1-8040 99,3% 12000 B Download
LOW1G-8040 99,3% 12000 B Download
LOW14-8040 99,3% 13200 B Download
* Test Condition:
Test NaCl Solution ppm Pressure psig (MPa) Temperature °C (°F) pH range Recovery
A 1500 150(1.03) 25(77) 6.5 – 7.0 10
B 15
Very High Rejection Low Pressure Energy Saving Polyamide Elements
Model Type Nominal Salt Rejection, % Permeate Flow, GPD Test * PDF
LOW2-2514 99,4% 120 A Download
LOW2-2521 99,4% 280 A Download
LOW2-2540 99,4% 550 A Download
LOW2-4014 99,4% 370 A Download
LOW2-4021 99,4% 870 A Download
LOW2-4040 99,5% 2100 B Download
LOW2-HR-4040 99,65% 1900 B Download
LOW2-8040 99,5% 10500 B Download
LOW2G-8040 99,5% 10500 B Download
LOW2-HR-8040 99,65% 9500 B Download
LOW2G-HR-8040 99,65% 9500 B Download
LOW24-8040 99,5% 11500 B Download
LOW24-HR-8040 99,65% 11500 B Download
* Test Condition:
Test NaCl Solution ppm Pressure psig (MPa) Temperature °C (°F) pH range Recovery
A 1500 150(1.03) 25(77) 6.5 – 7.0 10
B 15
High Productivity Energy Saving Polyamide Elements
Model Type Nominal Salt Rejection, % Permeate Flow, GPD Test * PDF
LOW3-2514 98,5% 200 A Download
LOW3-2521 98,5% 420 A Download
LOW3-2540 98,5% 900 A Download
LOW3-4014 98,5% 620 A Download
LOW3-4021 98,0% 1080 A Download
LOW1-4040 99,3% 1200 A Download
LOW3-4040 98,8% 3000 B Download
* Test Condition:
Test NaCl Solution ppm Pressure psig (MPa) Temperature °C (°F) pH range Recovery
A 1500 150(1.03) 25(77) 6.5 – 7.0 10
B 15
Very High Productivity extra low perssure energy Saving Polyamide Elements
Model Type Nominal Salt Rejection, % Permeate Flow, GPD Test * PDF
LOW4-2514 99,0% 150 A Download
LOW4-2521 99,0% 350 A Download
LOW4-2540 99,0% 800 A Download
LOW4-4014 99,0% 500 A Download
LOW4-4021 99,0% 1025 A Download
LOW4-4040 99,2% 2600 B Download
LOW4-8040 99,2% 12000 B Download
 LOW4G-8040  99,2%  1200  B  Download
LOW44-8040 99,2% 13200 B  Download
* Test Condition:
Test NaCl Solution ppm Pressure psig (MPa) Temperature °C (°F) pH range Recovery
A 1500 150(1.03) 25(77) 6.5 – 7.0 10
B 15