Leak detection specialist Inficom has compiled a top 10 checklist of common leak testing errors that companies can avoid.
1: The wrong method for the test leak rate
A common error in the water bath method is that the tester does not detect bubbles even though there is a leak. Problematic: A basic condition for the suitability of a leak testing or leak detection method is the leak rate limit. Often, however, companies do not pay attention to this in practice. For example, they examine plastic parts using the pressure drop method without considering their deformability and the change in volume caused by the compressed air. The leak rates of the integral leak testing and subsequent leak detection must match.
2: Incorrectly selected test time in the production process
At what point in the production process does leak testing make sense? This should be carefully considered. It is usually helpful to check partial components before assembly. If the pre-assembled components fail the series test, the effort is significantly higher - and the time invested in assembly is lost.