LCD Industry Ultra Pure Water System

1. Output water resistivity: ≥ 18.2MΩ·CM(25)

2. Modular design, compact construction.

3. Qualified deionized water can be produced continuously.

4. Full-automatic control with PLC & touch screen

5. Online water quality monitoring system.

6. Easy maintenance, low running cost.

7. USA DOW RO membrane, with excellent performance.

8. Germany Siemens EDI, with high efficiency.

9. CNP SUS pump, durable and low running noise.

10. System stops automatically in case of water shortage or tank full.

Equipment Summary

As the rapid development of technology, the quality level of LCD is higher and higher.
During manufacturing, the washing process is an important step, and the water source must be of very high quality.  Therefore, ultra-pure water system is essential. We adopted 2-stage RO system with EDI module and polishing mixed bed to reach the desalination rate of more than 98%.  

Processing Technology

1. Modular design, fully automatic control.

2. Raw water tank, 1-stage and 2-stage pure water tank, RO membrane and EDI module can be automatically washed.

3. Different modules will automatically switch to self-circulation mode, which guarantees no dead water exists.

4. Low pressure switch is equipped to protect the high pressure pump form damage in case of water cut.

5. Water quality monitoring system continuously showing out the output water quality to prevent production loss from unqualified water.

6. Pressure monitoring system is equipped to RO membrane to figure out the washing time for RO membrane.

7. Water tank is equipped with liquid level controller.

8. Top brand pump, gauge and RO membrane is adopted.

9. Sanitary tubes are automatic welded and endoscope tested to guarantee evenly welding without dead angle. So that the tube system could be easily clean and hard for bacteria breed. Then output water quality is guaranteed.

Solution Ways

Output water quality

Processing technology


Conductivity ≤ 10us/cm

1-stage RO system


Conductivity ≤ 5us/cm

2-stage RO system


Conductivity ≤ 2us/cm

2-stage RO system

Full SUS

Resistivity: ≥ 15MΩ·CM

2-stage RO system + EDI


Resistivity: ≥ 18.25MΩ·CM

2-stage RO system + EDI + Polishing


Application Field

Manufacturing Industry

Automobile, Glasses, Steel Material, Textile, Papermaking etc.

Electrical Power Industry

Boiler, Thermal power, Generation, System cooling, Water recycling etc.

Electroplating Industry

Film Coating, Lighting, Cooling, metal plating etc.

Opto-electronics Industry

Photovoltaic, Opto-electronics, New energy, LED lights etc.

Electronics Industry

Electrical appliance, chip, circuit board, singlechip etc.

Energy Industry

Semi-conductor, Silicon material, Polysilicon, Metal extraction etc.

Chemical industry

Petrochemical, Reaction cooling, Solution prepare, Material producing and processing etc.

Fine Chemicals Industry

Wet wipes, Face mask, Skincare, Shampoo, Hair dye, Tooth paste, Hand sanitizer, Detergent, cosmetics etc.

Pharmaceuticals Industry

Medical device producing, bioengineering, bio-medicine, oral liquid pharmacy, medical material extraction etc.

Operation Parameters



Raw Water

Tap water or groundwater (Conductivity ≤ 400μS/cm)

Output Water

Resistivity ≥ 18.2MΩ·CM

Power consumption

According to the capacity


Auto operation, PLC & touch screen

Back Washing Frequency

Vary between 1 to 3 days according to the input water quality

Chemical Washing Frequency

According to the membrane material and polluted situation


Compact construction, stable operation and reliable output water

6/MN, Block 9C,Baoneng Technology Park,Qingxiang Road, Longhua New District, Shenzhen, 518109, CHINA
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