Product Parameter

Medical purified water meets international pharmacopoeia standards.

1.  Key indicators:

2.  Conductivity ≤1.3 μS/cm (25℃)

3.  TOC ≤0.5 mg/L

4.  Aerobic bacteria ≤100 CFU/mL

5.  Strict control of nitrate, heavy metals and inorganic ions

6.  No bacterial endotoxin limit for purified water.

7. The system adopts circulating pipeline and periodic sanitization to inhibit microbial reproduction.

 Process flow:

Tap water → Raw water pump → Multi-media filter → Activated carbon filter → Water softener → Precision filter → First-stage high-pressure pump → First-stage reverse osmosis → Second-stage high-pressure pump → Second-stage reverse osmosis → Sterile water tank → Pure water pump → Ultraviolet sterilizer → Microporous filter → Water use point

1. Raw Water Booster Pump

Maintains constant system water supply pressure and provides sufficient water flow for subsequent systems.

2. Quartz Sand Filter

Mainly removes silt, rust, colloids, suspended solids, and other particles larger than 20 μm from raw water.

3. Activated Carbon Filter

Removes pigments, odors, and reduces residual nitrogen and other contaminants.

4. Resin Softening Filter

Adsorbs calcium and magnesium ions in the water, reducing hardness and preventing scale buildup.

5. Precision Filter

The precision filter is used to intercept small amounts of mechanical impurities that escape the pretreatment system. It contains a PP cotton filter element and filters particles as small as 5 μm to meet reverse osmosis feedwater requirements.

6. High-Pressure Pump

The primary and secondary high-pressure pumps provide pressure for the primary and secondary reverse osmosis systems, respectively.

7. Reverse Osmosis Membrane System

After reverse osmosis treatment, the impurity content in the water is reduced, improving water purity. Its desalination rate can reach over 97%, and it removes most bacteria, colloids, and high-molecular-weight organic matter. 

8. Flowmeter

This allows you to clearly monitor the current pure water and brine flow rates, visually displaying the ratio of pure water to brine, facilitating system adjustments based on the desired ratio and output.

9. Pressure Gauge

This monitors the pressure differential across the membrane system, which is crucial during actual operation.

10. Electronic Control Unit/Online Instrument Display

The control cabinet uses a 24V transformer, ensuring safe voltage operation for all control components. Operation is intuitive, with indicator lights clearly indicating operating status. Internal wiring is neatly arranged, with each wire numbered, making the overall design easy to understand and operate.

Normally composed of pretreatment + two-stage RO + EDI/ultrafiltration + sanitised circulating pipeline, complying with GMP and pharmacopoeia standards with strict control on microorganisms, endotoxin and conductivity.

Applications

· Pharmaceutical manufacturing: API production, oral solid preparation formulation and equipment cleaning

· Chinese herbal medicine extraction and preparation

· Biopharmaceuticals, vaccines and diagnostic reagent production

· Medical device factories for medical consumable rinsing

· Hospitals: hemodialysis centres, pharmacy departments and supply rooms

· Aseptic cosmetic and medical skincare production