On a centrifugal pump, there is a risk of cavitation phenomena taking place at the first impeller. Due to the geometry of the impeller and the liquid being pumped, the pressure could go below the vapour pressure and some bubbles may appear at certain critical areas.
Ok, on a bubble test we try...
I would like to specify a bubble test requirement to check performance on a critical pump first impeller.
I would like to know if there is any laboratory or univ doing this kind of test.