Transformer safety heat exchanger

Nissens Cooling Solutions’ AluXsafe, a safety heat exchanger, is a very suitable construction as an integrated part of a transformer cooling system thanks to its design with two separated circuits.

With AluXsafe, Nissens Cooling Solutions has eliminated the risk of mixing water and oil since the two media have been fully separated by an air chamber. In case of a leakage on the water/glycol side, the water will leak into the air chamber and escape from the heat exchanger without entering the transformer oil circuit. Nissens Cooling Solutions’ AluXsafe thus prevents the water/glycol from causing damage to the transformer.

Thanks to a full aluminum design and the application of the turbulator technology, AluXsafe offers a list of benefits compared to conventional heat exchangers in the market.


  • Light-weight and compact design
  • High heat transfer
  • Superior efficiency and performance
  • 100% elimination of risk mixing water and oil (total separation of the two media)
  • Customized solutions