Airtightness testing technology

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Recommended! Top Ten Airtightness Tester Equipment Brands

This article introduces the important role of airtightness testers in industrial production and lists the top ten airtightness tester brands at home and abroad, including ATEQ from France, Uson from the United States, Cosmo from Japan, etc., as well as Wan Yi Science and Technology and Jingcheng Industrial Technology from China. The article provides the features and representative products of each brand for users to choose according to their needs.

2. Negative pressure test principle

Airtightness testing: why leakage is positive in negative pressure testing and when it is negative

Airtightness testing with positive and negative pressure method, negative pressure test results show positive values normal. Negative values may be caused by leakage of standard parts, environmental differences or structural differences, and require separate testing of standard parts, control of environmental conditions, and verification of structural consistency. Abnormal data is an opportunity to discover new problems.

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