ST-LPW18-005
The 5 L/h model gives occasional small preparations access to the same ultrafiltration and endotoxin specification as the higher-output versions.
PRODUCT GALLERYST
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Cleanroom Pure Water Systems
Laboratory Ultrapure Water System – ST-LPW18 Series
Product specifications
| Brand | ST |
|---|---|
| Public model series | ST-LPW18 |
| 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 | 220 V/50 Hz 75 W (voltage tolerance±10%) |
| Dispensing rate | 1.8-2.0 L/min |
| RO water quality | ≤1-5 µS/cm (online monitoring), desalination rate 99% |
| 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 |
| Endotoxin | ≤0.001 EU/mL |
| UF membrane cut-off | molecular-weight cut-off 5000 Da |
Customization availableSpecifications can be customized to your requirements.
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Laboratory Ultrapure Water System – ST-LPW18 Series uses ultrafiltration as part of a compact laboratory supply for work sensitive to endotoxin and larger biological molecules. It provides high-resistivity water while addressing more than dissolved-ion purity alone.
The 5,000 Da cut-off and listed endotoxin limit are the main functional distinctions from the basic compact version. The production choices adapt replenishment to the laboratory workload, while the shared housing keeps the main equipment position consistent.
MODELS AND DIMENSIONS
Available output models
| Model | Production rate |
|---|---|
| ST-LPW18-005 | 5 L/h at 25°C |
| ST-LPW18-010 | 10 L/h at 25°C |
| ST-LPW18-020 | 20 L/h at 25°C |
| ST-LPW18-040 | 40 L/h at 25°C |
| ST-LPW18-060 | 60 L/h at 25°C |
| ST-LPW18-100 | 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-LPW18-010
At 10 L/h, additional recovery capacity supports more frequent small draws without changing the treatment configuration.
ST-LPW18-020
The 20 L/h version is a step up for a regular sequence of preparation tasks through the day.
ST-LPW18-040
A 40 L/h production rate is useful when batches are grouped together and the lower-output options cannot recover between them.
ST-LPW18-060
The 60 L/h model supplies more ongoing replenishment for repeated draws during a longer preparation session.
ST-LPW18-100
The 100 L/h option provides the maximum hourly production in this series; it does not imply a different ultrafiltration cut-off or endotoxin limit.
FEATURES AND BENEFITS
How it helps
UF treatment role
Molecular filtration provides a separate treatment step for the specified larger-contaminant requirement.
Compact biological-work preparation
The lower housing format makes it practical to place the supply near reagent preparation, subject to the full method-specific water requirements.
APPLICATIONS
Where it is used
Reagent preparation with biological-contaminant limits
Use for preparation methods whose full endotoxin and water-quality requirements match this configuration.
SYSTEM SELECTION
Select UF treatment for the preparation task
Biological-contaminant requirement
Assess the supplied endotoxin value and UF treatment together where the preparation procedure includes a biological-contaminant requirement.
Local supply
Select production for repeated batches and keep the compact filtration stages accessible beside the collection point for routine service.
PROCUREMENT / INQUIRY
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