Heliumlekketest

Heliumlekketest is a method used to detect and locate leaks in pressurized systems by utilizing helium as a tracer gas. Due to helium’s small atomic size, high diffusivity, and inert properties, it is highly suitable for leak testing across various industries, including HVAC, automotive, aerospace, and manufacturing.

The process involves introducing helium into the system under pressure, either by filling it directly or by creating a controlled environment around the component. Sensitive detection equipment, such as a mass spectrometer, then scans for helium escaping from the system's boundaries. When helium leaks are present, the detector identifies the presence of helium atoms outside the system, allowing technicians to pinpoint leak locations with high precision.

Helium leak testing offers several advantages. Its high sensitivity enables detection of very small leaks, often in the range of 10^-9 to 10^-12 atmospheres cubic centimeters per second. The method is non-destructive, quick, and can be performed on a wide variety of materials and shapes. Additionally, helium’s inertness ensures it does not react chemically with system components or contaminate the environment.

There are two main types of helium leak testing: qualitative and quantitative. Qualitative testing indicates the presence of leaks, while quantitative testing measures the exact leak rate. The choice depends on the specific application and required sensitivity.

Overall, heliumlekketest is a reliable and effective technique for ensuring the integrity of pressurized systems, helping to prevent failures, improve safety, and maintain optimal performance. Its use is widespread in quality assurance and safety compliance across multiple industrial sectors.