Advanced Combined Ultrapure Water System
Key Features
Exclusive OKP monitoring and control system with microprocessor-based intelligent control for fully automatic ultrapure water production
Dual flow path design delivering both pure water and ultrapure water; touch-sensitive keys enable one-touch, fast and simple operation
High-precision water quality measurement system accurately monitors the resistivity of product water and displays operating status in real time
Automatic rinsing of purification cartridges with a built-in anti-scaling program; automatic flushing of the pre-treatment and RO units for wider feed water adaptability
On-demand production — water is always fresh and free from secondary contamination; the spacious dispensing area accommodates large collection bottles
Disposable integrated filter cartridges allow quick and easy replacement; individual cartridges can be replaced separately at low cost
Modular design lets you build the optimal configuration for your needs and upgrade later for higher water quality, greater output and additional functions
All wetted components are made of inert materials to guarantee high-purity water; the fully enclosed unitized molecular-sieve bacteriostatic flow path ensures thorough sanitation
Guarantees long-term stable output at 18.2 MΩ·cm @ 25 °C, satisfying the requirements of a wide range of analytical-grade applications
Technical Specifications
Model | S405 | S410 | S420 | S430 | S440 | S430D |
Production rate | 5L/h | 10 L/h | 20 L/h | 30 L/h | 40 L/h | 30 L/h |
Feed water | Municipal tap water | Pure water | ||||
Output water | Pure water / Ultrapure water | Ultrapure water | ||||
Resistivity | 18.25 MΩ·cm @ 25 °C | |||||
TOC | < 3 ppb | |||||
Pyrogen (endotoxin) | < 0.001 EU/mL | |||||
Bacteria | < 1 cfu/mL | |||||
Pure water quality | Superior to distilled water | |||||
Ultrapure water quality | Complies with Grade I of the Chinese national laboratory water standard GB 6682-92, and with ASTM, NCCLS and CAP reagent-grade ultrapure water standards | |||||
Note | A feed water pre-treatment unit is recommended when the source water quality is poor | |||||
Feed pressure | 0.1 – 0.4 MPa | 0-0.4 MPa | ||||
Power supply | 220 V / 50 Hz | |||||
Power consumption | 28W | 36W | 43W | 48W | 55W | 30W |
Dimensions | 460 × 470 × 480 mm | |||||
Operating environment | 5 – 40 °C; avoid direct sunlight and protect from freezing in cold regions | |||||
Applications
High performance liquid chromatography (HPLC), ion chromatography (IC), gas chromatography (GC), atomic absorption and emission spectroscopy, mass spectrometry, GC-MS, PCR applications and analysis, and general water supply for high-end precision instruments. Also suitable for organic analysis, capillary electrophoresis, toxicology research, environmental analysis, Langmuir monolayer analysis, TOC analysis, and cleaning of microelectronic components.
About the OKP Series
Low feed water requirement. The well-engineered OKP pre-treatment system handles a wide range of raw water sources, from municipal tap water to groundwater, ensuring convenient and reliable operation.
High output. Longer service life of main consumables; the ultrapurification stage uses high-performance imported nuclear-grade polishing resin, delivering greater output and lower water production cost than comparable systems.
Low running cost. Cold water production saves laboratory water; total power consumption can be as low as 30 W, reducing electricity cost by over 99% compared with conventional water stills.
Quality, affordable consumables. Automatic RO membrane flushing effectively prevents biofilm formation, preserves the capacity of key components and extends service life. Replacement parts meet national standards and are easy to source.
Microprocessor intelligent control. Single-board CPU automatic control delivers fully automatic, fast water production whenever it is needed.
Real-time online monitoring. Continuous online water quality monitoring with an accurate, intuitive digital display.
Dual flow path design. Pure water and ultrapure water can be drawn simultaneously, making full use of available resources and meeting different laboratory grade requirements.
Closed system design. Prevents secondary contamination and further assures high output water quality.
Low energy, low noise, low water consumption, high output. Equipped with an imported high-pressure, low-flow, low-noise RO pump.
Key components sourced from quality imported brands.
Distinctive industrial design. Integrated all-in-one construction — compact, elegant and easy to transport and install. The tilted control panel offers a user-friendly, streamlined operation experience.
Consultative after-sales service and professional technical support.













