Separate generation stages
RO and optional EDI produce purified water before the distillation stage generates WFI.
PRODUCT GALLERYST
Product view
Cleanroom Pure Water Systems
Water for Injection Generation System – ST-LPW36 Series
Product specifications
| Brand | ST |
|---|---|
| Public model series | ST-LPW36 |
| Primary purification | Pretreatment + double-pass RO; EDI optional by process |
| WFI generation | Multi-effect distillation |
| Product-contact piping | 316L stainless steel; internal electropolishing and passivation |
| Gaskets | PTFE |
| Steam sanitization temperature | 121°C |
| Loop installation slope | 0.5% |
| Hot-system dead leg | <6 pipe diameters |
| Cold-system dead leg | <4 pipe diameters |
| Control | PLC + touchscreen |
Customization availableSpecifications can be customized to your requirements.
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Specify the quantity and configuration in your inquiry.
Water for Injection Generation System – ST-LPW36 Series prepares purified water, then uses multi-effect distillation where water for injection is required. Storage, circulation and sanitization are designed to control microbial growth, endotoxin and recontamination between generation and use points.
The 316L distribution loop uses electropolished internal surfaces, sanitary diaphragm valves and steam sanitization. PLC control records water quality, pressure, flow and maintenance events.
MODELS AND DIMENSIONS
Water-quality reference table
| Control item | Purified water | Water for injection | Sterile WFI |
|---|---|---|---|
| pH | 4.2–7.6 | 5.0–7.0 | 5.0–7.0 |
| Nitrate | 0.000006% | 0.000006% | 0.000006% |
| Nitrite | 0.000002% | 0.000002% | 0.000002% |
| Ammonia | 0.00003% | 0.00002% | 0.00002% |
| Non-volatile residue | ≤1 mg | ≤1 mg | ≤1 mg |
| Heavy metals | 0.00003% | 0.00003% | 0.00003% |
| Microbial limit | ≤100/mL | ≤10/mL | Sterility requirement |
| Endotoxin | Not specified | <0.25 EU/mL | <0.25 EU/mL |
PROCESS AND CONTROL
How this system solves the water-supply task
Drainable sanitary loop
Sloped 316L piping, diaphragm valves and controlled dead legs reduce retention points.
Coordinated sanitization
Steam, UV and pasteurization functions are selected for the generation, storage and distribution sections.
APPLICATION ENVIRONMENTS
Where this configuration is used
Parenteral production
Provides water for compatible injectable-product and large-volume parenteral processes.
Biopharmaceutical processing
Supports WFI-dependent formulation, rinsing and sterile utility tasks.
Medical-device production
Provides purified water or WFI for validated rinsing and process use according to the selected train.
SYSTEM SELECTION
Coordinate generation and hygienic delivery
Production requirement
Define the required WFI demand and purified feed before sizing the distillation, storage and return arrangement.
Installation detail
Plan steam services, drainability, valve access and sampling with the selected loop layout so the system can be operated and maintained as a complete assembly.
PROCUREMENT / INQUIRY
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