Heat Exchanger Testing

How the Test Works

The process we use involves pressurizing the primary side of an heat exchanger with Helium gas to a pressure no greater than 20 psi.  The gas is then bled through this section to ensure complete coverage of the plates, helium penetrates through water so any remaining water is not considered a problem.  Helium is a highly mobile gas that will easily pass through small pin holes and cracks in heat exchanger plates or tubes. It is an inert gas therefore non flammable. It is also non toxic, non-corrosive and leaves no residue.

The secondary side of the heat exchanger has a low volume air purge system fitted with a detector probe as an integral part of it.  The probe detects any crossover of Helium to the primary side down to as little as 2 ppm.  Any migration through elastomers will pass to the atmosphere causing no indication on our instrument.

Visit the Accusense website or download the brochure for more information.