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Helium Leak Detectors

Leybold leak detectors can be used for the localisation of leaks, and some are suitable for determining the total leak rate of test objects.

Whether a component or a system is leak-tight depends on the application it is to be used in and the leak rate that is acceptable. Absolutely leak-tight components and systems do not exist. A component is considered technically leak-tight if its leak rate remains below a value defined for this particular component.

Besides the determination of the total leak tightness, it is usually important to locate the leak, quickly and precisely, in order to seal it. Instruments for local leak detection are called leak detectors.

In practice the leak detector performs this task by first evacuating the part which is to be tested, so that gas from the outside may enter through an existing leak due to the pressure difference present. If only helium is brought in front of the leak (for example by using a spray gun) this helium flows through the leak and is pumped out by the leak detector. The helium partial pressure present in the leak detector is measured by a sector mass spectrometer and is displayed as a leak rate. This is usually given in terms of volume flow of the helium (pV-flow).

Demand Precision - Choose PHOENIX Industrial

In today’s fast-paced industrial world, precision and efficiency are no longer optional. Whether you're manufacturing electric vehicles, assembling aerospace components, or packaging sensitive electronics, leak detection plays a critical role in ensuring product integrity, safety, and performance.

The PHOENIX Industrial series from Leybold redefines industrial leak detection with improved precision, speed, and accuracy, created to meet the demands of today's production environments.

Built for Your Application. Ready for Your Challenge.

Vacuum Leak Detection for Industrial and Scientific Applications

The PHOENIX Industrial helium leak detectors are engineered with one goal in mind: to make leak detection faster, more accurate, and easier than ever before. By combining advanced vacuum technology with a user-friendly interface, the PHOENIX Industrial series supports a broad range of applications, including:

  • Scientific research and development vacuum systems 

  • Helium 3 & 4 cryogenic dilution refrigerators 

  • Automotive components and EV battery systems

  • Aerospace assemblies and fuel systems

  • Electronics and semiconductor equipment

  • Medical and pharmaceutical devices

  • Industrial vacuum systems

  • Food packaging and processing

Wherever precision matters, PHOENIX Industrial delivers reliable leak detection you can trust.

Where performance meets peace of mind

The PHOENIX Industrial Leak Detector is engineered to meet the demands of industrial operations head-on, delivering high-sensitivity leak detection with rapid response time for maximum productivity.

Its advanced technology ensures even the smallest leaks are detected with repeatable accuracy, safeguarding system integrity and compliance in critical applications.

With dual testing modes (vacuum and sniffer), you get maximum flexibility for sealed component testing and targeted leak localisation. Its intuitive interface and minimal maintenance make integration effortless, whether on automated lines or in cleanroom environments.

Download the brochure here.  

Oil‑free helium leak detection for industrial applications

The PHOENIX Industrial Dry delivers high‑sensitivity helium leak detection with completely oil‑free operation. 

Engineered with a dry scroll pump, the PHOENIX Industrial Dry requires low maintenance and offers contamination‑free testing for industries where cleanliness and reliability are mission-critical, such as electronics, medical devices, semiconductor production, and aerospace components.

With a detection sensitivity down to 5 × 10-12 mbar∙l/s, rapid response times, and an intuitive interface, the PHOENIX Industrial Dry provides fast, repeatable, and stable results across a wide range of industrial applications.

Download the brochure here

Compact helium leak detector

The PHOENIX Industrial Vario is designed for those who need powerful leak detection in a compact and flexible format.

Despite its lightweight design, the Vario achieves ultra‑high helium sensitivity down to 5 × 10⁻¹² mbar∙l/s, ensuring precise and repeatable measurements in demanding industrial environments. Its advanced communication interfaces and modular layout make integration seamless, whether you’re upgrading an existing platform or designing a new system.

Download the brochure here.  

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