ST-LPW19-005
The 5 L/h version suits an occasional-draw schedule with low cumulative water use and ample replenishment time.
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Cleanroom Pure Water Systems
Laboratory Ultrapure Water System – ST-LPW19 Series
Product specifications
| Brand | ST |
|---|---|
| Public model series | ST-LPW19 |
| Feed-water requirements | municipal tap water; TDS ≤200 ppm, pressure 1.0–5.0 kg/cm², temperature 5–45°C |
| Main unit dimensions | H × W × D: 580 × 390 × 490 |
| Unit weight | 35 kg-45 kg |
| Power supply and rated power | AC 220 V/50 Hz (power 75 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 |
| Absorbance | ≤0.001 |
| Soluble silica | ≤0.01 mg/L |
| TOC | ≤20 ppb |
Customization availableSpecifications can be customized to your requirements.
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Specify the quantity and configuration in your inquiry.
Laboratory Ultrapure Water System – ST-LPW19 Series provides compact RO and ultrapure-water production for routine analytical preparation. It combines an online ionic-quality reading with a defined organic-background limit so water can be matched to the method rather than selected by resistivity alone.
This is the 20 ppb TOC option in the compact housing group. The distinction from lower-TOC or UF-equipped versions is the stated contaminant requirement; increasing the production model changes replenishment, not that requirement.
MODELS AND DIMENSIONS
Available output models
| Model | Production rate |
|---|---|
| ST-LPW19-005 | 5 L/h at 25°C |
| ST-LPW19-010 | 10 L/h at 25°C |
| ST-LPW19-020 | 20 L/h at 25°C |
| ST-LPW19-040 | 40 L/h at 25°C |
| ST-LPW19-060 | 60 L/h at 25°C |
| ST-LPW19-100 | 100 L/h at 25°C |
Production-rate ratings are stated at the temperature shown in the table.
MODEL DIFFERENCES
Which configuration fits the task
ST-LPW19-010
The 10 L/h model doubles the smallest production rating for repeat small-volume analytical preparations.
ST-LPW19-020
At 20 L/h, the system offers more recovery capacity for routine solution preparation performed several times during a session.
ST-LPW19-040
The 40 L/h version is the midrange step when batch preparation becomes more continuous.
ST-LPW19-060
The 60 L/h model adds production for a heavier water-use schedule while retaining the common ≤20 ppb TOC specification.
ST-LPW19-100
The 100 L/h configuration is the largest replenishment option; select it from cumulative consumption and the available recovery interval between draws.
FEATURES AND BENEFITS
How it helps
Defined organic limit
The TOC value helps assess methods with a known organic-background tolerance.
Local dual-quality supply
RO and ultrapure specifications support different preparation duties without collecting water for every task from the same treatment level.
APPLICATIONS
Where it is used
Analytical sample and solution preparation
Match the organic and ionic limits to the method to reduce unwanted background introduced with preparation water.
SYSTEM SELECTION
Match organic tolerance and collection volume
Analytical method
Use the stated organic-background limit to decide whether this compact supply fits the preparation method alongside its ionic-water specification.
Output and servicing
Choose the production model for the batch frequency and leave accessible space around the cabinet for feed connections and treatment-stage replacement.
PROCUREMENT / INQUIRY
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