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E-Cell MK-3 PharmHT

E-Cell MK-3MiniHT and MK-3PharmHT stacks are hot water sanitizable EDI stacks which use electrical current to deionize and polish reverse osmosis (RO) permeate water. The product water quality for the system is at greater than USP quality levels required in today’s Pharmaceutical applications.


  • Provide ultrapure water for industrial applications. For instance, Power, Semiconductor, and General Industry.
  • Next, produce Mixed Bed quality water continuously.
  • Require no caustic or acid for the regeneration of ion exchange resin within the stack.
  • Be leak-free, guaranteed.
  • Lastly, eliminate brine injection and concentrate recirculation, simplifying system design

Quality Assurance

  • Firstly, CE, UL & CSA marked
  • Secondly, manufactured in an ISO 9001:2000 facility


  • Flow and pressure transmitters
  • Isolation valves
  • Automatic valves
  • Piping and frame material
  • Cleaning connections (CIP)
  • Instrumentation type and brand


  • Pharmaceutical
  • Laboratory Semiconductor
  • Food and Beverage
  • Microelectronics Industry
  • Power Generation (NOx, Boiler Feed)
  • General Industry Electro Separation


Stack Specifications
Nominal flow 4,1 m³/h
Maximum flow 1,6 to 4,6 m³/h
Shipping weight, approx. 92 kg
Dimensions (w x h x d), approx. 31 x 61 x 66 cm
Typical Performance
Resistivity >16 MOhm·cm
Sodium < 3 ppb
Silica (SiO2) Removal Up to 99% or < 5 ppb
Boron Removal > 95 %
Operating Parameters
Recovery Up to 97 %
1Concentrate flow Counter current to Product flow
Voltage 0 – 300 VDC 0 to 400 VDC
Amperage 0 to 5,2 ADC
Inlet Pressure (Counter Current) 4,1-6,9 bar
Inlet Pressure (Co-Current) 3,1-6,9 bar
Pressure Drop at Nominal Flow 1,4-2,8 bar
Maximum Feedwater Specifications
Feedwater – Total Exchangeable Anions (TEA as CaCO3) < 25 mg/l
Feedwater – Conductivity, NaHCO3 equivalent < 43 µS/cm
Temperature 5 to 40 ⁰C
Total hardness (as CaCO3) < 1.0 mg/l
Silica (SiO2) < 1.0 mg/l
Total Organic Carbon, TOC as C < 0.5 mg/l
Total Chlorine Total Chlorine < 0.05 mg/l

1Co-flow operation is acceptable when feed hardness
concentrations are <0.1 ppm as CaCO3.

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