Helium Leak Detection Principles 

Helium Leak Detector vs Pressure Decay Leak Detection

Faster ­ The Helium Leak Detection Method utilizing a sniffer probe registers leaks with a response time of approximately one second.

Dry ­ The Helium Leak test method is totally dry. There is no soap bubble residue or water droplets to clean and dry after testing. The costs associated with cleaning supplies and drying equipment can be eliminated, along with the mess and unpleasantness of running a bubble test operation.

More Sensitive ­ The helium molecule is so small that it can penetrate easily through a smaller leak faster than a water or air molecule can.

Quantitative Test ­ The size of the leak is detectable.

More Reliable ­ The helium leak detector signals and alarm when it detects helium, taking the responsibility away from the operator of judging if a part actually leaks or not.

Improved Product Quality ­ Higher reliability of leak testing translates directly to improved product quality. Leaky units will no longer pass test and be shipped to customers.

Cost Savings ­ Saving from reduced labor and floor space overhead costs can quickly amortize the initial purchase cost of the equipment. Recovering and reuse of the helium used for leak testing reduces helium costs significantly.

Easy of Operation ­ The helium leak detection work is easily learned by former bubble test operators or entry level personnel.

Comparison between different test methods