Helium Leak Test
Tight doesn't always mean tight!
As the name already describes, helium is used as the test medium in this leak test. The method can be used very well for integral leak tests but also for local leak detection.
In the case of integral testing, helium is applied to the component in the evacuated vacuum chamber. Helium escaping through leaks is sucked in by the high vacuum pump of the leak detector and even the smallest helium particles are detected by the built-in helium mass spectrometer.
For local leak detection, the component to be tested is exposed to helium and can then be scanned with a helium sniffer probe. This recognizes the escaping helium and then gives the corresponding feedback. A sniff test is a very effective and comparatively quick method of locating existing leaks.
We can detect (integral) leak rates down to the range of 10-9 mbar l / s, which would mean a gas loss of just 1 cm3 in 30 years. As a comparison: A waterproof component has a leak rate of 1 x 10-2 mbar L / s and would lose 1cm3 of gas within 100 seconds. This test method can save a lot of costs by securing a high leak rate.
We have our own vacuum chamber for pressure and leak tests under vacuum (integral). Here, too, an inspection of the components manufactured by us is possible, but also in contract work for your already finished components.
