{"id":6389,"date":"2025-03-01T11:49:30","date_gmt":"2025-03-01T03:49:30","guid":{"rendered":"https:\/\/www.air-tester.com\/?p=6389"},"modified":"2025-08-01T16:47:48","modified_gmt":"2025-08-01T08:47:48","slug":"mi-feng-xing-jian-ce-fang-fa","status":"publish","type":"post","link":"https:\/\/www.air-tester.com\/en\/mi-feng-xing-jian-ce-fang-fa.html\/","title":{"rendered":"A big list of sealing test methods! Pneumatic pressure, vacuum, water immersion...there's one for you!"},"content":{"rendered":"<p>In modern industrial production, product sealing is the cornerstone of product quality, performance and longevity. Industries such as automotive, electronics, medical, and food packaging all rely on rigorous sealing testing to ensure that their products continue to perform well in harsh environments.<\/p>\n\n\n\n<h2 class=\"wp-block-heading cheese-cake\" style=\"margin-top:var(--wp--preset--spacing--70)\"><strong><strong>I. What is<a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">Sealing Tester<\/a>?<\/strong><\/strong><\/h2>\n\n\n\n<p><a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">Sealing Tester<\/a><em>(also known as<a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">airtightness leak detector<\/a>,<a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">Air tightness testing equipment<\/a>)<\/em>It is a key equipment used to quantitatively test the sealing performance of products. Its core<strong>The principle is to accurately determine whether a leak exists by applying a precise pressure or vacuum to the part under test and monitoring the internal pressure changes.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"750\" height=\"422\" src=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2024\/08\/qi-mi-xing-jian-ce-yuan-li-dong-hua-2.gif\" alt=\"Principle of Airtightness Testing Animation 2\" class=\"wp-image-5306\" style=\"width:1200px;height:auto\" srcset=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2024\/08\/qi-mi-xing-jian-ce-yuan-li-dong-hua-2.gif 750w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2024\/08\/qi-mi-xing-jian-ce-yuan-li-dong-hua-2-18x10.gif 18w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2024\/08\/qi-mi-xing-jian-ce-yuan-li-dong-hua-2-600x338.gif 600w\" sizes=\"(max-width: 750px) 100vw, 750px\" title=\"\u5bc6\u5c01\u6027\u68c0\u6d4b\u65b9\u6cd5\u5927\u76d8\u70b9\uff01\u6c14\u538b\u3001\u771f\u7a7a\u3001\u6d78\u6c34\u2026\u603b\u6709\u4e00\u6b3e\u9002\u5408\u4f60\uff01\u63d2\u56fe\" \/><figcaption class=\"wp-element-caption\"><em>Animated diagram of the principle of airtightness testing<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading cheese-cake\" style=\"margin-top:var(--wp--preset--spacing--70)\"><strong><strong>II. Mainstream detection methods:<\/strong><\/strong><\/h2>\n\n\n\n<p><strong>Pneumatic pressure method:<\/strong>Fill the product with gas and monitor the pressure decay to assess leakage.<\/p>\n\n\n\n<p><strong>Vacuum method:<\/strong>Detect product pressure changes in a vacuum environment to determine sealing.<\/p>\n\n\n\n<p><strong>Immersion method:<\/strong>Immerse in water and observe bubbles to visually determine leakage (traditional method, less efficient).<\/p>\n\n\n\n<p>...<\/p>\n\n\n\n<h2 class=\"wp-block-heading cheese-cake\" style=\"margin-top:var(--wp--preset--spacing--70)\"><strong><strong>III. Detailed technical parameters of Jingcheng Engineering Technology<\/strong><\/strong><\/h2>\n\n\n\n<p><strong>Jingcheng Industrial Technology, specializing in airtightness testing for more than 10 years<\/strong>With a professional technical team and deep industry experience, we provide excellent products for various industries.<a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">Air tightness testing equipment<\/a>The Our airtightness tester has the following leading technical parameters:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2023\/11\/\u5b9e\u62cd_\u706f\u5177\u6848\u4f8b_1.jpg\" alt=\"Airtightness Testing_LED Lamps Case\" class=\"wp-image-1621\" style=\"width:1200px;height:auto\" srcset=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2023\/11\/\u5b9e\u62cd_\u706f\u5177\u6848\u4f8b_1.jpg 1024w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2023\/11\/\u5b9e\u62cd_\u706f\u5177\u6848\u4f8b_1-600x400.jpg 600w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2023\/11\/\u5b9e\u62cd_\u706f\u5177\u6848\u4f8b_1-300x200.jpg 300w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2023\/11\/\u5b9e\u62cd_\u706f\u5177\u6848\u4f8b_1-768x512.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" title=\"\u5bc6\u5c01\u6027\u68c0\u6d4b\u65b9\u6cd5\u5927\u76d8\u70b9\uff01\u6c14\u538b\u3001\u771f\u7a7a\u3001\u6d78\u6c34\u2026\u603b\u6709\u4e00\u6b3e\u9002\u5408\u4f60\uff01\u63d2\u56fe1\" \/><figcaption class=\"wp-element-caption\"><em>Precision Engineering<a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">Sealing Tester<\/a>Applications in manufacturing lines<\/em><\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Pressure range:<\/strong>-100kPa\uff5e3MPa (range can be customized to meet diversified needs)<\/li>\n\n\n\n<li><strong>Leakage range:<\/strong>0.001mL\/min\uff5e100mL\/min(range can be customized, high sensitivity, wide range of application)<\/li>\n\n\n\n<li><strong>Test time:<\/strong>1s\uff5e999s (test duration can be freely set, efficient and flexible)<\/li>\n\n\n\n<li><strong>Test accuracy:<\/strong>\u00b10.1%F.S. (High accuracy over the full range to ensure accurate and reliable test results)<\/li>\n\n\n\n<li><strong>Test Methods:<\/strong>Integration of positive pressure method, vacuum method, quantitative method, differential pressure method, flow method and other testing modes to meet different product testing needs.<\/li>\n\n\n\n<li><strong>Display:<\/strong>High-definition color touch screen, intuitive and convenient operation, clear data reading.<\/li>\n\n\n\n<li><strong>Data storage:<\/strong>Built-in large-capacity storage, can store 50,000 groups of test data, convenient for data traceability and analysis.<\/li>\n\n\n\n<li><strong>Communication Interface:<\/strong>Equipped with RS485\/RS232, USB, Ethernet and other communication interfaces to facilitate data export and system integration.<\/li>\n\n\n\n<li><strong>Power supply:<\/strong>AC110V\uff5e240V 50\/60Hz (universal power supply, adaptable)<\/li>\n\n\n\n<li><strong>Dimensions &amp; Weight:<\/strong>Optimized design according to different models to meet the needs of different application scenarios.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading cheese-cake\" style=\"margin-top:var(--wp--preset--spacing--70)\"><strong><strong>IV. Jingcheng Engineering<a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">Airtightness Tester<\/a>core strengths<\/strong><\/strong><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>High precision:<\/strong>Adopting high sensitivity sensors and advanced algorithms to ensure accurate test results and provide authoritative guarantee for product quality.<\/li>\n\n\n\n<li><strong>Efficient:<\/strong>Fast testing speed, significantly improve production efficiency, shorten the testing cycle, reduce production costs.<\/li>\n\n\n\n<li><strong>High stability:<\/strong>Instrument performance is stable and reliable, durable, to meet the long-term high load operation requirements.<\/li>\n\n\n\n<li><strong>Easy to operate:<\/strong>Humanized operation interface, simple and easy to learn, reduce the threshold of operation, enhance the user experience.<\/li>\n\n\n\n<li><strong>Versatile:<\/strong>Integration of a variety of test methods, a machine for multiple uses, flexible response to the sealing test needs of various products.<\/li>\n\n\n\n<li><strong>Customizable:<\/strong>Supports customization of test parameters and functions, tailoring solutions to specific customer needs.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading cheese-cake\" style=\"margin-top:var(--wp--preset--spacing--70)\"><strong>V. Wide range of applications<\/strong><\/h2>\n\n\n\n<p>Precision Engineering<a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">Airtightness Tester<\/a>It has been widely used in the following key areas:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"1000\" height=\"667\" src=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2024\/04\/qi-mi-xing-jian-ce-yi-fen-lei.gif\" alt=\"Airtightness Tester Category GIF\" class=\"wp-image-5418\" style=\"width:1200px;height:auto\" srcset=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2024\/04\/qi-mi-xing-jian-ce-yi-fen-lei.gif 1000w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2024\/04\/qi-mi-xing-jian-ce-yi-fen-lei-18x12.gif 18w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2024\/04\/qi-mi-xing-jian-ce-yi-fen-lei-600x400.gif 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" title=\"\u5bc6\u5c01\u6027\u68c0\u6d4b\u65b9\u6cd5\u5927\u76d8\u70b9\uff01\u6c14\u538b\u3001\u771f\u7a7a\u3001\u6d78\u6c34\u2026\u603b\u6709\u4e00\u6b3e\u9002\u5408\u4f60\uff01\u63d2\u56fe2\" \/><figcaption class=\"wp-element-caption\"><em>Precision Engineering<a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">Airtightness Tester<\/a>Some examples of industry applications<\/em><\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Automotive parts:<\/strong>Sealability testing of key components such as engines, die-castings, lights, sensors, etc. to ensure safe and reliable operation of automobiles.<\/li>\n\n\n\n<li><strong>Electronic products:<\/strong>Waterproof and dustproof testing of cell phones, tablet PCs, smart wearable and other electronic devices to enhance product durability and user experience.<\/li>\n\n\n\n<li><strong>Medical device:<\/strong>Seal testing of medical equipment such as syringes, infusion sets, ventilators, and xylitol vials ensures medical safety and guards lives and health.<\/li>\n\n\n\n<li><strong>Food packaging:<\/strong>Food and drug packaging sealing test, to protect product quality and safety, and extend the shelf life.<\/li>\n\n\n\n<li><strong>New energy battery (New energy battery):<\/strong>Sealability testing of new energy products such as power batteries, energy storage batteries, aluminum shell covers, etc., to ensure stable battery performance and safety.<\/li>\n\n\n\n<li><strong>Smart wearable (Smart wearable):<\/strong>Waterproof performance testing of smart watches, bracelets and other wearable devices to enhance product competitiveness.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading cheese-cake\" style=\"margin-top:var(--wp--preset--spacing--70)\"><strong>Summarize<\/strong><\/h2>\n\n\n\n<p><a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">Sealing Tester<\/a>It is an indispensable quality control tool in modern industrial production. Precision Engineering's<a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">Air tightness testing equipment<\/a>With its excellent performance and comprehensive functions, it provides reliable guarantee for sealing test of products in various industries.<\/p>\n\n\n\n<p><strong>For more information about Precision Engineering<a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">Airtightness Tester<\/a>For more information, please visit our official website or contact us directly. Precision Industrial Technology will be happy to serve you and help your product quality to a higher level!<\/strong><\/p>\n\n\n\n<p style=\"font-size:15px\"><em>Original statement: This article is written by the technical team of Shenzhen Precision Industrial Technology Co. Data source: Precision Industrial Technology internal test data and customer cases.<\/em><em><\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>In modern industrial production, the sealing test is to ensure product quality, performance and service life of the key links. With its high precision, high efficiency and versatility, Precision Industrial Technology airtightness tester has become the first choice of sealing testing equipment for many industries, and is able to meet the diversified needs of various industries from automotive parts to electronic equipment, medical devices, food packaging, new energy batteries and so on.<\/p>","protected":false},"author":1,"featured_media":1621,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[28],"tags":[675,39,185,674],"class_list":["post-6389","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industrynews","tag-ji-shu-can-shu","tag-39","tag-185","tag-hang-ye-jie-jue-fang-an"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.air-tester.com\/en\/wp-json\/wp\/v2\/posts\/6389","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.air-tester.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.air-tester.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.air-tester.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.air-tester.com\/en\/wp-json\/wp\/v2\/comments?post=6389"}],"version-history":[{"count":0,"href":"https:\/\/www.air-tester.com\/en\/wp-json\/wp\/v2\/posts\/6389\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.air-tester.com\/en\/wp-json\/wp\/v2\/media\/1621"}],"wp:attachment":[{"href":"https:\/\/www.air-tester.com\/en\/wp-json\/wp\/v2\/media?parent=6389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.air-tester.com\/en\/wp-json\/wp\/v2\/categories?post=6389"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.air-tester.com\/en\/wp-json\/wp\/v2\/tags?post=6389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}