Volume-Flow method

Test medium: Pressurized air resp. vacuum

Detectable leakage rates: >300 cc/min

Testing method:
Test specimen is pressurized/evacuated. Air flowing out/in through leakages is replaced using a laminar flow element and the volume flow determined.



  • very fast testing possible due to the instantaneous measuring signal
  • large measuring range
  • usable for leakage testing and flow measuring


  • unsuitable for low leakage rates
  • for each pressure point separate calibration necessary

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