Bipolar Water Electrolysis

Bipolar Water electrolysis type Hydrogen generators are the preferred systems for simple, reliable and clean production of Hydrogen. Customer only needs to provide water and power supply and our systems deliver high purity, high pressure Hydrogen.

MVS Engineering



Flow Range

We design and manufacture systems ranging from 5 to 500 Nm3/hr in a single train. If higher capacity is required, we recommend multiple systems.


Hydrogen Purity

99.9999% purity Hydrogen is delivered by our high purity bipolar electrolysis units. We also offer a low purity option delivering hydrogen at 99.8% purity.


Dew Point

MVS Hydrogen generators deliver very dry gas, with dew point as low as (-) 60°C. We also offer measuring instruments for online detection of gas dryness.



Hydrogen gas is delivered from our systems at 15 kg/cm2g without the need of a booster compressor. This pressure satisfies the requirement of the majority of our customers. We offer booster compressor for customers requiring Hydrogen gas at a higher pressure.

MVS Hydrogen Generators

MVS Engineering


Hydrogen is generated from pure water (H2O) by applying DC current.

 2H2O = 2H2 + O2

DM Water (Demineralized / Deionized) water is used as feed. The water passes through the MVS high pressure bipolar alkaline Electrolyzer cell where DC current is applied causing water to split into Oxygen and Hydrogen. Both gases are washed in separate chambers.

Oxygen is safely vented, whereas Hydrogen is delivered as the product gas.

For high purity systems, Hydrogen is passed through a de-oxo purifier where the purity of Hydrogen improves to 99.9998%. After purification, pure Hydrogen passes through a PSA-type dryer where excess moisture is removed and (-) 60°C dew point is achieved. Finally, pure and very dry Hydrogen gas is delivered to the customer process at high pressure directly from our system.


MVS has collaboration with one of the leading Electrolyzer manufacturers – Sujin. With hundreds of alkaline high pressure electrolyzers installed globally, they offer one of the most reliable and robust systems. We work closely with them to jointly manufacture hydrogen generators while sourcing many components locally to optimize the cost of our systems.

MVS Engineering
MVS Engineering


MVS alkaline bipolar water electrolysis Hydrogen generators have advanced monitoring systems ensuring plant operational safety. The systems safely depressurize and shut down in the case of abnormal operation.
Among the many interlocks available in our systems, a few important ones are:

  • Hydrogen leakage detection in plant room
  • Operating pressure of H2 generator
  • Operating temperature
  • Hydrogen purity
  • Oxygen purity
  • Oxygen level in Hydrogen gas
  • Dew point of Hydrogen gas
  • Instrument air pressure
  • Cooling water pressure
  • Pressure after Hydrogen regulating valve
  • Rectifier fault


Water Electrolysis Hydrogen Generators are used in:

  • Power plants Generator cooling
  • Gas chromatography
  • Semiconductor manufacturing
  • Meteorological (Weather) balloons filling
  • Metallurgical processing (annealing, brightening, sintering)
  • Hydrogenation of fats (food processing)
  • Leak detection in air conditioning industry
  • Chemicals processing
  • Refineries and Pilot plants
  • Chemical Vapour Deposition (CVD) for diamond industry
MVS Engineering
MVS Engineering
MVS Engineering

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Water Electrolysis - Proton Hydrogen - PEM | MVS Engineering-Nitrogen,Oxygen,Hydrogen Gas Plants