Laboratory water purification unit Classic D series

for medical applicationsreverse osmosisASTM I

Product
Classic DU15 / Classic DU20 / Classic DU25 and Classic D15 / Classic D20 / Classic D25 all-in-one water purification systems designed for laboratory and clinical reagent water supply.

Overview
Compact, integrated systems delivering ASTM Type I & Type II water and Clinical Laboratory Reagent Water (CLSI) depending on configuration. Units combine pretreatment, two-stage reverse osmosis (RO), DI resin modules and optional ultra-purification modules for Type I water on selected DU models. Remote monitoring and data logging options support laboratory compliance and traceability.

Features (DU series)

• Delivers ASTM Type I & Type II water and Clinical Laboratory Reagent Water (CLSI)
• On-line real-time TOC monitoring
• Dual-wavelength UV lamp (254 nm & 185 nm) for organic and microbial control
• U-cloud platform for remote monitoring (Wi-Fi module)
• Modular DI resin cartridge for easy replacement
• USB port for data logging and export

Features (D series)

• ASTM Type II high-purified water / Clinical Laboratory Reagent Water (CLSI)
• Integrated water dispenser arm for direct dispensing
• U-cloud platform for remote monitoring (Wi-Fi module)
• Modular DI resin cartridge
• USB port for data logging

Main configurations and options (summary)
Pre-treatment module: YES for DU and D models
Main host: YES for DU and D models
Pre-guard cartridge A & B: YES
Two-stage Reverse Osmosis: YES
DI Resin: YES
Water tank options: 30L, 60L, 100L with stepless water level sensor available
254 nm UV light for water tank: YES
Inlet air filter for water tank: YES
Water leakage protection sensor: YES
TOC monitoring: YES for DU series; NO for D series
Dual-wavelength UV Lamp (254 nm & 185 nm): YES for DU series; NO for D series
Ultra Protection Cartridge A: YES for DU series; NO for D series
Integrated Water Dispenser Arm: YES for both DU and D where specified
* Optional ultra purification cartridge B for semiconductor industry (higher deionization requirements).

Performance and quality
Feed water requirement: Portable tap water
Conductivity: < 2000 µS/cm
TOC feed water: < 1 ppm
Hardness*: < 450 ppm as CaCO3
Pressure: 0.1 ～ 0.4 MPa (7–72 psi)
Temperature: 5 ～ 45 ℃
pH: 4–10

Type II High Purified Water (typical)
Resistivity at 25 ℃: > 8 MΩ·cm (typically 10–15 MΩ·cm)
Conductivity at 25 ℃: typically 0.1 µS/cm
TOC: < 30 ppb (µg/L)
Particulates > 0.22 µm: < 1 pc/µL
Endotoxin (Pyrogens): < 0.001 EU/mL
Bacteria: < 0.01 cfu/mL (< 10 cfu/L)
RNase: < 1 pg/mL
DNase: < 5 pg/mL
Proteases: < 0.15 µg/mL
RO rejection: ≥ 99%
DI ion rejection: ≥ 99%
Production flow rates: DU/D models: 15 L/H, 20 L/H, 25 L/H depending on model
Manual control water flow rate: Maximum 2 L/min, stepless control
Quantitative water dispense range: 0.01 L ～ 60 L

Type I Ultra Purified Water (where applicable)
Resistivity at 25 ℃: 18 MΩ·cm (for Type I ultra-purified configuration)
Conductivity at 25 ℃: 0.055 µS/cm
TOC: ≤ 2 ppb (µg/L)
Particulates > 0.22 µm: No particles detected
Endotoxin (Pyrogens): < 0.001 EU/mL
Bacteria: < 0.01 cfu/mL
RNase/DNase: Free (Type I)
Proteases: < 0.15 µg/mL

Electrical requirements
Electrical voltage: 110V/220V ±10%
Electrical frequency: 50Hz/60Hz
Power: 135 W

Size and weight
Pre-treatment module weight: 8.5 kg (net), gross 9.8 kg; packing dimension 350 x 360 x 670 mm; external dimension 270 x 280 x 566 mm
Main host with dispenser arm net weights vary by model: 26.5–29.6 kg; gross weights: 38.5–40.4 kg; packing dimension 510 x 670 x 800 mm; external dimension 328 x 540 x 600 mm
Water tank weights (net / gross): 30L net 9 kg / gross 12.4 kg; 60L net 10.66 kg / gross 14 kg; 100L net 12.2 kg / gross 15.6 kg
Water tank dimensions: 30L 390 x 390 x 690 mm; 60L 390 x 390 x 930 mm; 100L 390 x 390 x 1235 mm

Notes
* If feed (tap) water contains Ca2+ / Mg2+ above requirements, apply additional treatment (e.g. softening) before feed.
** Resistivity typically 10–15 MΩ·cm at 25 ℃; conductivity typically 0.1 µS/cm at 25 ℃.
*** Feed water quality should meet above requirements; purified water dispensed via remote dispenser should use a final 0.22 µm filter.

Technical specifications

• Series / Models: Classic DU15 / DU20 / DU25 and Classic D15 / D20 / D25
• Functions: RO + DI + UV, TOC monitoring (DU), optional ultra purification for Type I
• Production capacity: 15 / 20 / 25 L/H depending on model
• Water quality Type II: Resistivity > 8 MΩ·cm (typically 10–15 MΩ·cm), TOC < 30 ppb
• Water quality Type I (ultra): Resistivity 18 MΩ·cm, TOC ≤ 2 ppb
• Feed water conductivity < 2000 µS/cm; TOC < 1 ppm; hardness < 450 ppm as CaCO3
• Electrical: 110V/220V ±10%, 50/60Hz, 135 W
• Dispense range: 0.01 L to 60 L; manual flow max 2 L/min
• Key modules: Pre-treatment, Two-stage RO, DI resin, UV (254 nm & 185 nm), TOC monitor, U-cloud (Wi-Fi), USB logging
• Available water tanks: 30L / 60L / 100L