Ultrasonic Leak Detection

In Compressed Air, Inert Gas and Vacuum Systems

Nowadays saving energy is an important topic in all areas in which compressed air systems are used. The finding and elimination of leaks in compressed air systems alone can save up to 35 % of the energy costs associated with the use of a compressor. Regular ultrasonic inspections and preventative maintenance can also increase the operational reliability of equipment.

Advantages of Ultrasonic Leak Detection

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  • Detect leaks in compressed air, inert gas and vacuum systems

  • Save up to 35 % of the energy costs associated with the use of a compressor

  • Patent-pending method for leak classification and evaluation in l/min

  • LeakExpert: Specific app for leak detection and classification for SONAPHONE

  • Generate leak reports


Specific app for leak detection and classification

Ultrasonic Leak Detection

Leak Calculator

The process of estimating the amount of leakage in a compressed air system is part of DIN EN ISO 11011. This process provides data for energy management systems in accordance with DIN EN ISO 50001. The leakage calculator is based on the leakage loss, which were determined and classified with the SONAPHONE ultrasonic testing device with LeakExpert app. For the calculation, the compressed air index, the energy costs and the production hours must also be known.


SONOTEC has developed a process for classifying and estimating the total leakage losses of a system to the best of its knowledge and ability, based on flow acoustics methods.

SONOTEC shall in no way be held liable for the results generated through the application of this process, nor for any decisions made on the basis of such results. All actions taken by the end user based on the results are the sole responsibility of the end user, who accepts full liability for any such actions.