{"id":8239,"date":"2026-06-26T14:00:04","date_gmt":"2026-06-26T06:00:04","guid":{"rendered":"https:\/\/www.air-tester.com\/?p=8239"},"modified":"2026-06-27T15:05:41","modified_gmt":"2026-06-27T07:05:41","slug":"qi-mi-xing-jian-ce-ya-li-shang-xian","status":"publish","type":"post","link":"https:\/\/www.air-tester.com\/en\/qi-mi-xing-jian-ce-ya-li-shang-xian.html\/","title":{"rendered":"Quick Q&A: What is the maximum pressure for airtightness testing, and does a higher test pressure always mean better results?"},"content":{"rendered":"

When it comes to quality inspection on automated production lines, many engineers face a common question:What is the maximum pressure for airtightness testing? Which scenarios are suitable for each pressure range? Does higher test pressure result in better testing accuracy and reliability?<\/strong><\/p>\n\n\n\n

In fact, the selection of pressure for gas testing has never been \u201cThe higher, the better<\/strong>\", but rather to align with the product's actual operating conditions, mass production cycle times, and safety costs. In industrial mass production scenarios,Gas Testing Equipment<\/a>With clear pressure classifications and application limits in place, selecting the appropriate pressure rating is far more valuable than blindly pursuing high pressure.<\/p>\n\n\n\n

I. Pressure Classification and Application Limits for Industrial Gas Testing<\/h2>\n\n\n\n

Current Mainstream Production LinesAir tightness testing equipment<\/a>, which can be divided into four major pressure-level ranges, each corresponding to specific application scenarios and technical characteristics:<\/p>\n\n\n\n

Low-pressure detection (0\u2013100 kPa)<\/strong><\/h3>\n\n\n\n

This is the most commonly used mass-production pressure range in the consumer electronics industry, corresponding to a pressure of 0\u20131 bar. It is primarily used for water resistance and sealing tests on products such as smartphones, TWS earbuds, smartwatches, and small plastic enclosures. This rangeThe testing process is safe and efficient, capable of accurately detecting micro-leaks at the part-of-a-pico-liter level, while causing no damage to the workpieces. It is suitable for high-speed, high-volume production lines.<\/strong>The<\/p>\n\n\n\n

Medium-Pressure Testing (100\u2013500 kPa)<\/strong><\/h3>\n\n\n\n

The standard operating range for automated production lines, corresponding to pressures of 1\u20135 bar, provides comprehensive coverage for leak testing of automotive connectors, headlights, solenoid valves, and various precision structural components. This rangeIt strikes a balance between seal strength verification and sensitivity in detecting micro-leaks, as well as between testing performance and mass production efficiency, making it the most widely used pressure rating in industrial applications.<\/strong>The<\/p>\n\n\n\n

High-Pressure Testing (500 kPa\u20135 MPa)<\/strong><\/h3>\n\n\n\n

Designed for pressures ranging from 5 to 50 bar, these products are suitable for applications requiring high sealing strength, such as new energy battery packs, industrial valve bodies, pressure vessels, and refrigeration system components. Made in Chinaairtightness meter<\/a>The high-pressure series of equipment from the leading brand JCGK now covers multiple pressure ratings, including 1 MPa, 2 MPa, 3 MPa, 4 MPa, and 5 MPa,Fully meeting the requirements for industrial-grade high-pressure sealing validation, it has already been widely implemented in high-end manufacturing sectors such as new energy and automotive components.<\/strong>The<\/p>\n\n\n\n