When using a PEM hydrogen generator, both hydrogen and oxygen gases are produced simultaneously, as this is an inherent part of its working principle. To have the PEM electrolysis tank output different gases, the connection pipes must be modified.. Here are three modification methods:

1. Outputs hydrogen gas without oxygen.
2. Outputs oxygen gas without hydrogen.
3. Outputs HHO gas, a mixture of hydrogen and oxygen. 

We have created video tutorials demonstrating these three connection methods for your convenience, showing how to modify the PEM electrolysis tank’s connection pipes to obtain hydrogen, oxygen, or a mixture of HHO gas as needed. The modification primarily involves cutting off or sealing the unwanted gas outlet pipes. These changes will not affect the performance of the PEM electrolysis tank, which will continue to operate normally.

The key to outputting different gases lies in modifying the pipe connections, rather than altering the electrolysis tank itself. The tank will still produce both hydrogen and oxygen, but by adjusting the pipe connections, we can selectively collect one or both gases. The video tutorial demonstrates three pipe modification methods in detail according to needs. They are straightforward to operate and hopefully helpful to you.

1.Outputs hydrogen gas without oxygen.

  1. Connect the PU tube to the water pump
  2. Fix it with hose clamps
  3. Connect the water pump to the spout of the water tank
  4. Connect the other end of the water pump to the inlet of the hydrogen generator
  5. Use PU tubes to connect the hydrogen outlet of the generator and the gas inlet of the water gas separator
  6.  Use PU tubes to connect the oxygen outlet of the generator and the oxygen gas outlet of the water tank
  7.  Use PU tubes to connect the gas shut-off valve( avoid bringing gas back when returning water)
  8. Connect the installed gas shut-off valve to the return water outlet of the water gas separator and the return water inlet of the water tank
  9. When the water level in the water gas separator reaches the letter below, open the tracheal switch valve Discharge the water to the water tank until the designated position and close the tracheal switch valve
  10. Unscrew the lid of the water gas separator
  11. Add pure water
  12. Tighten the lid
  13. Install water level sensor
  14. Before installing the plug of the water level sensor, the black plug needs to be pulled out (In a de-energized state)
  15. Connect the plug of the water level sensor to the transformer
  16. Turn on the switch, the equipment starts to work
  17. When the float of the water level sensor is above, the equipment works normally. When it is below, the equipment will stop working
  18. The piping connection is complete

2.Outputs oxygen gas without hydrogen.

  1. Connect the PU tube to the water pump
  2. Fix it with hose clamps
  3. Connect the water pump to the spout of the water tank
  4. Connect the other end of the water pump to the inlet of the hydrogen generator
  5. Use PU tubes to connect the return water outlet of the water gas separator and the return water inlet of the water tank
  6. Use PU tubes to connect the oxygen outlet of the generator and the gas inlet of the water gas separator
  7. Use PU tubes to connect the hydrogen outlet of the generator and the hydrogen gas outlet of the water tank
  8. Unscrew the lid of the water gas separator
  9. Add pure water
  10. Tighten the lid
  11. Install water level sensor
  12. Before installing the plug of the water level sensor, the black plug needs to be pulled out (In a de-energized state)
  13. Connect the plug of the water level sensor to the transformer
  14. Turn on the switch, the equipment starts to work
  15. When the float of the water level sensor is above, the equipment works normally. When it is below, the equipment will stop working
  16. The piping connection is complete

3. Outputs HHO gas, a mixture of hydrogen and oxygen.

  1. Connect the PU tube to the water pump
  2. Fix it with hose clamps
  3. Connect the water pump to the spout of the water tank
  4. Connect the other end of the water pump to the inlet of the hydrogen generator
  5. Connect the PU tube to the tee joint
  6. Connect it to the hydrogen outlet and oxygen outlet of the hydrogen generator
  7. Connect one end of the PU tube to the other end of the tee joint ,then the other end to the gas inlet of the water gas separator
  8. Use PU tubes to connect the return water outlet of the water gas separator and the return water inlet of the water tank
  9. Unscrew the lid of the water gas separator
  10. Add pure water
  11. Tighten the lid
  12. Install water level sensor
  13. Before installing the plug of the water level sensor, the black plug needs to be pulled out (In a de-energized state)
  14. Connect the plug of the water level sensor to the transformer
  15. Turn on the switch, the equipment starts to work
  16. When the float of the water level sensor is above, the equipment works normally. When it is below, the equipment will stop working
  17. The piping connection is complete