Trace-ion preparation
The heavy-metal value gives an additional criterion when trace ionic contamination matters to the method.
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Cleanroom Pure Water Systems
Laboratory Ultrapure Water System – ST-LPW20 Series
Product specifications
| Brand | ST |
|---|---|
| Public model series | ST-LPW20 |
| Feed-water requirements | municipal tap water; TDS ≤200 ppm, pressure 1.5–4 kg/cm², temperature 5–45°C |
| Production rate | 40/60/80/100/120 |
| Main unit dimensions | 1430 × 525 × 570 (mm) |
| Unit weight | 80 kg |
| Power supply and rated power | AC 220 V/50 Hz (power 50-100 W) |
| Dispensing rate | 1.8-2.0 L/min |
| RO water quality | conductivity ≤1-5 µS/cm (online monitoring) |
| Ultrapure water quality | resistivity 18.2 MΩ·cm at 25°C (online monitoring:GB/T 6682-2008) |
| Microbial level | ≤1 CFU/mL |
| Particle count | ≤ 1 particle/mL |
| Heavy-metal ions | ≤0.1 ppb |
Customization availableSpecifications can be customized to your requirements.
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Laboratory Ultrapure Water System – ST-LPW20 Series places monitored RO and high-resistivity water in a floor-standing laboratory cabinet for repeated preparation work. It brings routine collection and higher-purity preparation together at an accessible equipment position.
This configuration lists a heavy-metal limit as well as microbial and particle values. Those criteria distinguish the intended water-quality selection from a capacity-only decision, while the output range addresses how much water the laboratory needs over the day.
MODELS AND DIMENSIONS
Available output models
| Model |
|---|
| ST-LPW20-01 |
| ST-LPW20-02 |
| ST-LPW20-03 |
Production-rate ratings are stated at the temperature shown in the table.
FEATURES AND BENEFITS
How it helps
Freestanding service position
The tall cabinet can be planned outside the main bench footprint with nearby feed water and collection space.
APPLICATIONS
Where it is used
Shared laboratory water collection
Place a monitored water point near repeated preparation and rinsing tasks, with each outlet selected for the task’s required water quality.
SYSTEM SELECTION
Plan an off-bench preparation-water point
Sensitive ionic work
Compare the specified heavy-metal, microbial and particle values with the preparation method as well as the final resistivity.
Floor services
Allow a dedicated floor position with the stated inlet pressure available during use, then match production to the laboratory’s collection schedule.
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