EDI Module, Deepflow CYTTEDI120 Ultra-Pure Water System (120 L/h)
| Brand | Deepflow |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | CYTTEDI120 |
| Flow Rate | 120 L/h |
| Technology | Electrodeionization (EDI) |
| Output Water Quality | ≥18.2 MΩ·cm @ 25°C, <5 ppb Total Organic Carbon (TOC), <0.1 CFU/mL Bacteria |
| Power Supply | 220 VAC ±10%, 50/60 Hz |
| Dimensions (W×D×H) | 450 × 550 × 720 mm |
| Weight | 42 kg |
| Operating Temperature | 5–35°C |
| Inlet Feed Water Requirement | ≤50 µS/cm conductivity, ≤1 ppm SiO₂, ≤0.1 ppm Fe/Mn, <1 ppm hardness (as CaCO₃), SDI <3 |
Overview
The Deepflow CYTTEDI120 EDI Module is a continuous electrodeionization unit engineered for integration into ultra-pure water (UPW) systems serving analytical laboratories, pharmaceutical QC facilities, semiconductor R&D cleanrooms, and life science research centers. Unlike batch-mode deionization or single-pass ion exchange, this module employs a hybrid electrochemical process—combining ion-selective membranes, mixed-bed ion-exchange resins, and direct current (DC) electric fields—to achieve stable, chemical-free polishing of pre-deionized feed water (typically from RO or dual-bed DI stages). The result is consistent production of Type I ultrapure water per ASTM D1193-20 and ISO 3696:1987 Class 1 specifications, with resistivity ≥18.2 MΩ·cm at 25°C, total organic carbon (TOC) <5 ppb, and microbial load <0.1 CFU/mL. Its 120 L/h nominal flow rate supports medium-capacity distribution loops in centralized UPW networks, enabling uninterrupted operation for HPLC, LC-MS, ICP-MS, cell culture media preparation, and trace elemental analysis.
Key Features
- Chemical-free operation: Eliminates need for acid/base regeneration cycles, reducing operational risk, waste disposal burden, and downtime associated with traditional mixed-bed polishers.
- Stable resistivity output: Maintains ≥18.2 MΩ·cm under variable load conditions via real-time current control and optimized stack design with uniform current density distribution.
- Integrated monitoring: Built-in conductivity, temperature, and flow sensors provide analog/digital outputs compatible with SCADA or building management systems (BMS).
- Modular architecture: Designed for plug-and-play integration into existing UPW skids; standard 3/4″ sanitary quick-connect fittings and DIN-rail mounting brackets simplify field installation.
- Low energy consumption: Optimized electrode geometry and membrane surface area yield typical specific power consumption of 0.8–1.2 kWh/m³ at rated flow.
- Self-cleaning capability: Periodic polarity reversal and controlled current ramping mitigate scaling and fouling on ion-exchange membranes—extending service intervals beyond 12 months under compliant feed water conditions.
Sample Compatibility & Compliance
The CYTTEDI120 is intended exclusively for post-RO polishing applications and requires inlet water meeting strict pretreatment criteria: conductivity ≤50 µS/cm, silica ≤1 ppm, iron/manganese ≤0.1 ppm, and silt density index (SDI) <3. It is not suitable for direct connection to municipal or hard well water sources. The module complies with CE marking requirements (2014/30/EU EMC Directive and 2014/35/EU Low Voltage Directive) and conforms to material safety standards per USP for wetted components (FDA-compliant polypropylene housing, FDA-listed ion-exchange resins, and ASTM F519-certified titanium electrodes). Documentation includes full Declaration of Conformity, material traceability records, and validation-ready IQ/OQ protocol templates aligned with GMP Annex 1 and EU GMP Guide Part IV.
Software & Data Management
While the CYTTEDI120 operates as a standalone hardware module, its sensor suite supports seamless integration into supervisory control environments. Analog 4–20 mA outputs for conductivity, temperature, and flow enable real-time trending in LabVantage, DeltaV, or custom SCADA platforms. Optional RS485 Modbus RTU interface permits remote parameter readout—including stack voltage, current draw, and alarm status—for inclusion in electronic batch records. Audit trail functionality (including timestamped event logging for high/low alarms and manual override actions) satisfies FDA 21 CFR Part 11 requirements when deployed within validated system architectures governed by SOPs for data integrity and electronic signature controls.
Applications
- HPLC and UHPLC mobile phase preparation where ionic contamination compromises column lifetime and peak symmetry.
- LC-MS and ICP-MS sample dilution and instrument rinse protocols requiring sub-ppb anion/cation carryover limits.
- Pharmaceutical water-for-injection (WFI) support loops in non-sterile API synthesis labs (per USP purified water specifications).
- Cell and tissue culture media formulation demanding endotoxin-free, low-TOC water to prevent cytotoxic effects.
- Calibration standard preparation for trace metal analysis (e.g., EPA Method 200.8), where background Na⁺, K⁺, or Cl⁻ must be below detection thresholds.
- Microelectronics wafer cleaning rinse steps requiring particle-free, low-silica water to prevent defect generation.
FAQ
What feed water quality is required for reliable CYTTEDI120 operation?
Feed water must be pre-treated by reverse osmosis (RO) or equivalent, with conductivity ≤50 µS/cm, silica ≤1 ppm, hardness <1 ppm (as CaCO₃), and SDI <3. Failure to meet these limits accelerates membrane scaling and reduces module lifespan.
Can the CYTTEDI120 replace a mixed-bed deionizer in an existing UPW system?
Yes—provided the upstream RO stage is stable and feed water quality is continuously monitored. Retrofitting requires flow balancing, DC power supply integration, and updated control logic to manage current ramping and polarity reversal sequences.
Does this module support 21 CFR Part 11 compliance?
The hardware itself does not store or process data; however, when connected to a validated supervisory system with audit trail, electronic signatures, and role-based access control, it contributes to a Part 11–compliant water system architecture.
What maintenance is required annually?
Annual tasks include visual inspection of electrode surfaces, verification of membrane integrity via pressure drop testing, calibration of inline sensors against NIST-traceable references, and review of operational logs for current/voltage drift trends.
Is validation documentation available?
Deepflow provides IQ/OQ template packages, material certifications (EN 10204 3.1), and test reports for pressure containment, electrical safety, and performance verification per ASTM D1193-20 Annex A2. Full PQ support requires site-specific challenge studies conducted under user-defined protocols.
