{"id":5777,"date":"2025-12-17T16:10:31","date_gmt":"2025-12-17T08:10:31","guid":{"rendered":"https:\/\/www.airbag.cc\/?p=5777"},"modified":"2025-12-17T16:10:32","modified_gmt":"2025-12-17T08:10:32","slug":"how-to-check-the-airtightness-of-a-pneumatic-fender","status":"publish","type":"post","link":"https:\/\/www.airbag.cc\/id\/how-to-check-the-airtightness-of-a-pneumatic-fender\/","title":{"rendered":"Bagaimana Cara Memeriksa Kekedapan Udara pada Spatbor Pneumatik?"},"content":{"rendered":"\n<p>A pneumatic fender absorbs berthing energy by compressing the air inside.<br>Once airtightness becomes an issue, the fender\u2019s energy absorption performance drops sharply, and in serious cases, it can even create safety risks.<\/p>\n\n\n\n<p>That\u2019s why airtightness checks are essential\u2014not only during factory inspection, but also during site acceptance and routine maintenance.<\/p>\n\n\n\n<p>Below, we\u2019ll explain <strong>how to check the airtightness of a <a href=\"https:\/\/www.airbag.cc\/pneumatic-fender\/\">pneumatic fender<\/a><\/strong> in a clear and practical way.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.airbag.cc\/wp-content\/uploads\/2024\/02\/NANHAI-Pneumatic-Fender-9-768x1024.jpg\" alt=\"\" class=\"wp-image-2331\" style=\"aspect-ratio:4\/3;object-fit:cover\" srcset=\"https:\/\/www.airbag.cc\/wp-content\/uploads\/2024\/02\/NANHAI-Pneumatic-Fender-9-768x1024.jpg 768w, https:\/\/www.airbag.cc\/wp-content\/uploads\/2024\/02\/NANHAI-Pneumatic-Fender-9-225x300.jpg 225w, https:\/\/www.airbag.cc\/wp-content\/uploads\/2024\/02\/NANHAI-Pneumatic-Fender-9-1152x1536.jpg 1152w, https:\/\/www.airbag.cc\/wp-content\/uploads\/2024\/02\/NANHAI-Pneumatic-Fender-9-9x12.jpg 9w, https:\/\/www.airbag.cc\/wp-content\/uploads\/2024\/02\/NANHAI-Pneumatic-Fender-9-56x75.jpg 56w, https:\/\/www.airbag.cc\/wp-content\/uploads\/2024\/02\/NANHAI-Pneumatic-Fender-9-480x640.jpg 480w, https:\/\/www.airbag.cc\/wp-content\/uploads\/2024\/02\/NANHAI-Pneumatic-Fender-9.jpg 1276w\" sizes=\"auto, (max-width:767px) 480px, (max-width:768px) 100vw, 768px\" \/><\/figure>\n<\/div>\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-why-is-airtightness-inspection-so-important\">Why Is Airtightness Inspection So Important?<\/h2>\n\n\n\n<p>Some people may think:<br><em>\u201cThe fender doesn\u2019t look damaged and it still works\u2014so why worry?\u201d<\/em><\/p>\n\n\n\n<p>In reality, it\u2019s not that simple.<\/p>\n\n\n\n<p>When a pneumatic fender starts to leak air, you may see the following problems:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The internal pressure drops below the design value, reducing energy absorption<\/li>\n\n\n\n<li>Local deformation appears, causing uneven load distribution<\/li>\n\n\n\n<li>Slower rebound during berthing, or even abnormal sliding<\/li>\n\n\n\n<li>Long-term use accelerates rubber fatigue and damage<\/li>\n<\/ul>\n\n\n\n<p>In short, <strong>airtightness directly determines whether the fender is actually working as designed.<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-should-you-prepare-before-checking-airtightness\">What Should You Prepare Before Checking Airtightness?<\/h2>\n\n\n\n<p>Before starting the inspection, it\u2019s best to do the following:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Inflate the fender to its rated pressure (commonly <a href=\"https:\/\/www.airbag.cc\/yokohama-fenders-50-kpa-vs-80-kpa\/\">50 kPa or 80 kPa<\/a>)<\/li>\n\n\n\n<li>Place the fender on flat, clean ground without sharp objects<\/li>\n\n\n\n<li>Prepare the necessary tools:\n<ul class=\"wp-block-list\">\n<li>An accurate pressure gauge<\/li>\n\n\n\n<li>Soap water or a professional leak detection liquid<\/li>\n\n\n\n<li>A timing or recording tool<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>For long-term tests, record the ambient temperature<\/li>\n<\/ul>\n\n\n\n<p>These steps are simple, but they significantly improve inspection accuracy.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-method-1-pressure-retention-test-the-most-basic-and-important-method\">Method 1: Pressure Retention Test (The Most Basic and Important Method)<\/h2>\n\n\n\n<p>This is the most commonly used method and the one that best reflects overall airtightness.<br>After production, pneumatic fenders are usually tested this way at the factory. After a period of use, the same method can be used for reinspection.<\/p>\n\n\n\n<p>Overall, this is <strong>the most accurate and reliable airtightness test available<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-how-to-do-it\">How to do it:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Inflate the fender to its rated pressure<\/li>\n\n\n\n<li>Close the inflation valve and record the initial pressure<\/li>\n\n\n\n<li>Measure and record the pressure regularly over 24 or 48 hours<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-how-to-judge-the-result\">How to judge the result:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>If the pressure remains stable with only minor fluctuations, airtightness is normal<\/li>\n\n\n\n<li>If the pressure keeps dropping or drops significantly, air leakage is likely<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-this-method-is-especially-suitable-for\">This method is especially suitable for:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Factory inspection<\/li>\n\n\n\n<li>Project delivery and acceptance<\/li>\n\n\n\n<li>Condition assessment after a period of use<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-method-2-soap-water-leak-test-quick-leak-point-detection\">Method 2: Soap Water Leak Test (Quick Leak Point Detection)<\/h2>\n\n\n\n<p>When you suspect air leakage at a specific area on site and need to locate the leak, this is the fastest and most practical method.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-key-areas-to-check-include\">Key areas to check include:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Inflation valve and valve core<\/li>\n\n\n\n<li>Flange connection areas<\/li>\n\n\n\n<li>Rubber layer joints<\/li>\n\n\n\n<li>Reinforced areas at both ends of the fender<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-how-to-judge\">How to judge:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Continuous bubbles indicate air leakage<\/li>\n\n\n\n<li>No bubbles mean the area is airtight<\/li>\n<\/ul>\n\n\n\n<p>This method is simple and intuitive, and most on-site personnel can use it easily.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-method-3-long-term-static-observation\">Method 3: Long-Term Static Observation<\/h2>\n\n\n\n<p>If time allows, a more conservative approach can be used to confirm airtightness.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-how-it-works\">How it works:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Inflate the fender and leave it unused for several days<\/li>\n\n\n\n<li>Record the pressure daily or every few days<\/li>\n\n\n\n<li>Monitor changes in ambient temperature at the same time<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-suitable-scenarios\">Suitable scenarios:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Factory quality control<\/li>\n\n\n\n<li>Large project acceptance<\/li>\n\n\n\n<li>Applications with higher airtightness requirements<\/li>\n<\/ul>\n\n\n\n<p>This method is more effective for identifying <strong>small but continuous air leaks<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-where-do-airtightness-problems-most-commonly-occur\">Where Do Airtightness Problems Most Commonly Occur?<\/h2>\n\n\n\n<p>Based on real-world experience, air leakage usually occurs in the following areas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Aging inflation valves or damaged sealing components<\/li>\n\n\n\n<li>Scratches or punctures on the rubber outer layer<\/li>\n\n\n\n<li>End areas where stress is concentrated<\/li>\n\n\n\n<li>Material fatigue caused by long-term overpressure or underpressure use<\/li>\n<\/ul>\n\n\n\n<p>That\u2019s why inspection should never focus only on surface damage\u2014<strong>internal pressure is the key factor for pneumatic fenders.<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-should-you-do-if-air-leakage-is-found\">What Should You Do If Air Leakage Is Found?<\/h2>\n\n\n\n<p>Once leakage is confirmed, the solution depends on the severity:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Minor leakage:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Replacing the valve core or sealing components is usually sufficient<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Clear damage location:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Professional rubber repair is required<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Severe or structural problems:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Factory repair or full replacement is recommended<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>Relying on repeated reinflation instead of proper repair is not recommended, as it increases operational risk.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-often-should-airtightness-be-checked\">How Often Should Airtightness Be Checked?<\/h2>\n\n\n\n<p>A practical inspection schedule is as follows:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Before leaving the factory: mandatory airtightness testing<\/li>\n\n\n\n<li>Before installation or delivery: reinspection<\/li>\n\n\n\n<li>During normal operation:\n<ul class=\"wp-block-list\">\n<li>Every 6\u201312 months<\/li>\n\n\n\n<li>More frequently for high-intensity or frequent berthing operations<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-faq\">FAQ <\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. How long should a pneumatic fender hold pressure during an airtightness test?<\/h3>\n\n\n\n<p>Under normal conditions, a pneumatic fender should maintain stable pressure for at least <strong>24 to 48 hours<\/strong>. Minor fluctuations caused by temperature changes are acceptable, but continuous pressure loss indicates air leakage.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Is a soap water test enough to check airtightness?<\/h3>\n\n\n\n<p>No. A soap water test is useful for <strong>locating specific leak points<\/strong>, but it cannot evaluate overall airtightness. For reliable results, it should always be combined with a <strong>pressure retention test<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Does temperature affect pressure readings during testing?<\/h3>\n\n\n\n<p>Yes. Ambient temperature changes can cause slight pressure variation. That\u2019s why temperature should be recorded during long-term tests, especially for factory inspection or project acceptance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. Where does air leakage usually occur on a pneumatic fender?<\/h3>\n\n\n\n<p>Air leakage most commonly occurs at:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Inflation valves or valve cores<\/li>\n\n\n\n<li>Sealing components<\/li>\n\n\n\n<li>Rubber joints or seams<\/li>\n\n\n\n<li>Reinforced end areas where stress is concentrated<\/li>\n<\/ul>\n\n\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How long should a pneumatic fender hold pressure during an airtightness test?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A pneumatic fender should maintain stable pressure for at least 24 to 48 hours. 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Recording temperature during long-term tests helps ensure accurate evaluation of airtightness.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Where does air leakage usually occur on a pneumatic fender?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Air leakage most commonly occurs at inflation valves, valve cores, sealing components, rubber joints, seams, and reinforced end areas where stress is concentrated.\"\n      }\n    }\n  ]\n}\n<\/script>\n\n","protected":false},"excerpt":{"rendered":"<p>A pneumatic fender absorbs berthing energy by compressing the air inside.Once airtightness becomes an issue, the fender\u2019s energy absorption performance drops sharply, and in serious cases,<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5777","post","type-post","status-publish","format-standard","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.7.1 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>How to Check the Airtightness of a Pneumatic Fender? 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