What is the difference between air tightness test and sealing performance test? What brand of air tightness testing equipment is good?

Air tightness test is a kind of sealing and waterproof performance test, which uses gas to detect whether there is leakage. Sealing performance test is a broader concept, which uses any medium to test whether it can prevent penetration or leakage. ?

The difference between the two is that:

Testing medium: Only gas can be used for air tightness testing, and any medium can be used for sealing performance testing.

Detection accuracy: air tightness detection is more accurate than liquid or solid sealing performance detection, because gas molecules move quickly and the leakage is small.

Detection method: There are many methods for air tightness detection, such as direct pressure method, differential pressure method and flow method, but there are not many methods for air tightness detection, such as microbial challenge method, colored water method and bubble release method.

Testing purposes: Air tightness testing is to ensure safety, reliability and economy, while air tightness testing is to ensure function, quality and effect.

Regarding the brands of air tightness testing equipment, there are many brands of air tightness testing equipment on the market at present, which are divided according to domestic brands and imported brands. These brands of air tightness leak detectors have high precision and a certain popularity. The following rankings are in no particular order:

Representative of domestic brand: JCGK sincere project

Jingcheng Project: China brand, a company specializing in the production and sales of R&D air tightness testing equipment, has independent research and development capabilities and high-quality product performance. Its air tightness testing equipment includes air tightness tester, waterproof tester, blasting tester, leakage tester and respiratory cycle tester.

Representative of imported brand: ATEQ Adaikai

ATEQ Adelaide: French brand, global supplier of sealing tester, leakage tester and flow tester. Its air tightness testing equipment is suitable for automobiles, medical devices, electronics and other fields.

Uson Yousheng: American brand, the world's leading manufacturer of air tightness testing instruments, whose air tightness testing equipment is suitable for automobiles, medical devices, pharmaceuticals and other fields.

Cosmo Cosmao: Japanese brand, global manufacturer of pressure gauges, flowmeters and leak detectors. Its air tightness testing equipment is suitable for automobile, aerospace, electronics and other fields.

The product characteristics, advantages and representative products of these brands of air tightness detectors are different. Users can choose their own air tightness detector according to their own needs and application scenarios. If the budget is sufficient, you can consider importing leak detectors. If the budget is limited, it is also a good choice to replace them with domestic airtight leak detectors.

Want to know more detailed air tightness testing scheme and application cases, please pay attention to the air tightness of Jingcheng project.