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Sealing Tester

2025 Airtightness meter top ten brands list revealed! Authoritative Selection Guide, Domestic Dark Horse Jingcheng Industrial Technology on the List Thumbnails

2025 Airtightness meter top ten brands list revealed! Authoritative Selection Guide, Domestic Dark Horse Jingcheng Industrial Science and Technology on the List

In 2025, with the intelligent and high-quality development of manufacturing industry, the importance of the hermetic gauge as a key equipment to ensure the sealing and waterproof performance of the product has become more and more prominent. This article introduces the working principle of the airtightness instrument, including positive and negative pressure method, differential pressure method, flow method and helium detection method, etc., and counts the top ten brands of airtightness instrument in 2025, in which the Chinese brand Jingcheng Industrial Science and Technology is on the list by virtue of its high cost-effective and local advantages.

Jingcheng Gongke Gas Tightness Tester 2

What is the online air tightness tester? An article to understand the principle, application and Jingcheng Industrial Technology's technical advantages

This paper introduces the principle, advantages and applications of online gas tightness tester. The device determines product tightness by detecting changes in gas pressure, has the advantages of non-destructive and quantifiable, and is widely used in new energy, auto parts, medical and consumer electronics and other fields. With its technical advantages, Precision Engineering provides integrated solutions to help enterprises reduce costs and increase efficiency.

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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