Chokes For Leak Testing High Pressure Systems

Le résumé fourni par la source

The purpose of this note is to describe the operation and use of a gas flow choke for leak detection. Newly installed vacuum systems and systems that experience a component failure, commonly have leaks which are above the highest test range of current helium mass spectrometer leak detectors, but below the detection range of sonic leak detectors. In many cases of new construction or maintenance large leaks are part of the initial testing of the vacuum system. The use of a gas flow choke will allow the operation of a leak detector at a much higher pressure.

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