EDI E-Cell Stack MK-7

Summary

Product identification

The E-Cell EDI MK-7 Stack is an industrial electrodeionization (EDI) stack designed to use electrical current to provide ultrapure water.

Key features and benefits:

• Delivers premium performance with high product water quality and low energy consumption.
• Minimizes cleaning requirements at higher feed water hardness levels using counter-current operation.
• Guaranteed leak-free with a standard 3-year prorated warranty.
• Operates continuously and does not require caustic or acid for ion exchange resin regeneration.
• Requires no brine injection or concentrate recirculation.

Typical applications include:

• Demineralized boiler feed water for high pressure boilers (power plants, heavy industrial sites).
• Ultrapure water for rinsing of solar panels and microelectronics.
• Ultrapure water for electrolyzer green hydrogen generation.

Quality Assurance & Certifications:

• CE, RoHS, CSA, and EAC marked.
• Manufactured in an ISO 9001 and ISO 14001 facility.
• Certified with UKCA.
• Halal certified by the Islamic Food and Nutrition Council of America (IFANCA®).

Operating limits

• Recovery: Up to 97%

Feed water

• Total Exchangeable Anions (TEA as CaCO₃): ≤ 36 ppm (at minimum flow and maximum temperature)
• Conductivity Equivalent: ≤ 62 μS/cm
• Temperature: 4.4–40˚C (40–104˚F)
• Total Hardness (as CaCO₃): ≤ 1.0 ppm (Note: 1.0 ppm applies to standard counter-current flow. See PDF for co-current operation details.)
• Silica (SiO₂): ≤ 1.0 ppm (Note: Limit decreases above 5 m³/h flow and with feedwater hardness above 0.5 ppm as CaCO₃. See PDF for details.)
• Total Organic Carbon (TOC as C): ≤ 0.5 ppm
• Total Chlorine: ≤ 0.05 ppm
• Fe, Mn, H₂S: ≤ 0.01 ppm
• Boron: ≤ 1.0 ppm (Note: Limited to 0.3 ppm as B if silica guarantee or resistivity above 10 MOhm-cm is required.)
• pH: 4 to 11
• Oil & Grease: None detectable
• Particulate: RO permeate (Note: Feed water must be substantially free of particulate matter. If an open system is used, a 5 µm absolute or 1 µm nominal filter is recommended immediately preceding the E-Cell.)
• Oxidizing Agents: None detectable
• Color: ≤ 5 APHA

Product water

Guarantees available:

• Resistivity: ≥ 16 MOhm-cm
• Sodium: ≤ 3 ppb
• Silica (SiO₂): As low as 5 ppb

Typical Removal Efficiencies:

• Sodium: ≥ 99.9% removal
• Silica (SiO₂): Up to 99% removal

Electrical

• Voltage: 0–400 VDC
• Amperage: 0–5.2 ADC

Mechanical / hydraulic

• Nominal Flow: 7.0 m³/h (31 gpm)
• Flow Rate Range: 4.2 – 7.8 m³/h (18 – 34 gpm)
• Shipping Weight: 165 kg (364 lbs)
• Dimensions (width x height x depth): 30 cm x 61 cm x 74 cm (12’’ x 24” x 30”)
• Inlet Pressure: ≤ 6.9 bar (100 psi)
• Pressure Drop: 2.4–3.4 bar (35–50 psi) (at nominal flow and 25°C)

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the official PDF datasheet. For contractual purposes, please refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

Lenntech datasheet mirror