Deionized Water Systems Manufacturer
Deionized Water Systems are advanced water purification units designed to remove dissolved ionic contaminants such as salts, minerals, and other charged particles from feed water, producing ultra-pure, deionized water ideal for laboratory, pharmaceutical, electronics, and industrial applications. These systems are widely used where high-resistivity, low-conductivity water is essential for sensitive processes. Deionized water, also known as DI water or demineralized water, is free from cations like calcium, magnesium, sodium and anions such as chloride, sulfate, and bicarbonate.
As water flows through the cation resin, cations are exchanged for hydrogen ions. The water then passes through the anion resin, where anions are exchanged for hydroxide ions. The hydrogen and hydroxide ions subsequently combine to form pure water (H₂O), resulting in water with extremely low conductivity and minimal dissolved ions. Periodically, the resins are regenerated using acid and alkali solutions to restore their ion-exchange capacity.
Technical Specifications
| Parameter | Specification |
|---|---|
| Flow Rate | 100 LPH to 20,000 LPH (customizable) |
| Water Output Quality | 0.05 – 0.2 µS/cm (Resistivity > 5 MΩ-cm) |
| Type | Dual Bed / Mixed Bed / EDI System |
| Regeneration | Manual / Semi-automatic / Automatic / EDI (chemical-free) |
| Resin Type | Strong Acid Cation & Strong Base Anion Resins |
| Material of Construction | FRP / SS 316 / MSRL based on application |
| Working Pressure | 2 – 5 bar |
| Operating pH Range | 4 – 10 |
| Conductivity Monitoring | Online digital meters with alarm |
| Application Areas | Laboratories, Pharma, Electronics, Power Plants, CIP |
Working Principle of Deionized water systems
- Cation Exchange Resin: Replaces positive ions (such as Na⁺, Ca²⁺, Mg²⁺) in the water with hydrogen ions (H⁺).
- Anion Exchange Resin: Replaces negative ions (such as Cl⁻, SO₄²⁻, NO₃⁻) with hydroxide ions (OH⁻).
Deionized water systems operate on the principle of ion exchange. The system typically consists of two types of ion-exchange resins housed in separate columns or a mixed-bed arrangement:
