{"id":989,"date":"2025-12-12T00:33:19","date_gmt":"2025-12-12T00:33:19","guid":{"rendered":"https:\/\/www.materialstests.com\/?p=989"},"modified":"2025-12-12T00:36:41","modified_gmt":"2025-12-12T00:36:41","slug":"what-is-the-pressure-decay-leak-testing-method","status":"publish","type":"post","link":"https:\/\/www.materialstests.com\/fi\/resources\/what-is-the-pressure-decay-leak-testing-method.html","title":{"rendered":"Mik\u00e4 on paineen hajoamisen vuototestausmenetelm\u00e4?"},"content":{"rendered":"

Introduction to Pressure Decay Leak Testing<\/h2>\n\n\n\n

Pressure decay leak testing is one of the most widely used methods in manufacturing production lines. This method is simple, cost-effective compared to helium testing, and easy to automate, making it a preferred choice in various industries.<\/p>\n\n\n\n

How Does Pressure Decay Leak Testing Work?<\/h2>\n\n\n\n

The pressure decay method involves filling a test component with pressurized air. Once the desired pressure is reached, the component is isolated from the air supply and allowed to stabilize. A sensor then measures any pressure drop over a set time.<\/p>\n\n\n\n

Key principle:<\/strong> A decrease in pressure indicates the presence of a leak. The rate of pressure drop determines the severity of the leak. If no pressure change occurs, the component is considered leak-free.<\/p>\n\n\n\n

\"What<\/figure>\n\n\n\n

Advantages of Pressure Decay Testing<\/h2>\n\n\n\n

Highly Accurate:<\/strong> Detects even the smallest leaks.<\/p>\n\n\n\n

Kustannustehokas:<\/strong> Uses air instead of expensive gases like helium.<\/p>\n\n\n\n

Versatile:<\/strong> Applicable for both positive and negative pressure testing.<\/p>\n\n\n\n

Broad Industry Applications:<\/strong> Used in automotive, medical, packaging, and industrial manufacturing.<\/p>\n\n\n\n

Pressure Decay Testing Applications & Industries<\/h2>\n\n\n\n

Pressure decay leak testing is used across various industries, including:<\/p>\n\n\n\n

Automotive \u2013 Fuel system components, radiators, and airbag systems.<\/p>\n\n\n\n

Medical \u2013 Medical tubing, syringes, and sealed containers.<\/p>\n\n\n\n

Packaging \u2013 Sealed food and beverage containers.<\/p>\n\n\n\n

Industrial Manufacturing \u2013 Hydraulic and pneumatic components.<\/p>\n\n\n\n

Pressure Decay Testing Procedure: Step-by-Step<\/h2>\n\n\n\n

1. Cartridge Installation & Wetting<\/h3>\n\n\n\n

Ensure all components are available.<\/p>\n\n\n\n

Install the cartridge into the housing, securing all fittings.<\/p>\n\n\n\n

If using a pre-wetted cartridge, proceed to testing.<\/p>\n\n\n\n

To wet the cartridge, open valves to allow fluid flow and remove air bubbles.<\/p>\n\n\n\n

2. Performing the Pressure Decay Test<\/h3>\n\n\n\n

Ensure all valves are initially closed.<\/p>\n\n\n\n

Connect a regulated air or nitrogen source.<\/p>\n\n\n\n

Slowly increase the pressure to the specified test value.<\/p>\n\n\n\n

Close the valve and allow stabilization.<\/p>\n\n\n\n

Measure pressure drop over a set time (typically 10 minutes).<\/p>\n\n\n\n

If pressure drop is below the threshold, the component passes.<\/p>\n\n\n\n

Pressure Decay Test Formula<\/h2>\n\n\n\n

The pressure decay rate can be calculated using the formula:<\/p>\n\n\n\n

DP = D * T * Pa \/ V<\/strong><\/p>\n\n\n\n

Miss\u00e4:<\/p>\n\n\n\n

DP<\/strong> = Maximum allowable pressure drop.<\/p>\n\n\n\n

D<\/strong> = Diffusion rate limit.<\/p>\n\n\n\n

T<\/strong> = Test duration in minutes.<\/p>\n\n\n\n

Pa<\/strong> = Atmospheric pressure (14.7 psi).<\/p>\n\n\n\n

V<\/strong> = Volume of test apparatus.<\/p>\n\n\n\n

Common Issues and Troubleshooting<\/h2>\n\n\n\n

1. Air Leaks in Plumbing<\/h3>\n\n\n\n

Ensure all connections are airtight. Perform regular system leak checks.<\/p>\n\n\n\n

2. Marginal Failures<\/h3>\n\n\n\n

Re-wet the cartridge and retest if necessary.<\/p>\n\n\n\n

3. Incorrect Cartridge Installation<\/h3>\n\n\n\n

Ensure O-rings are undamaged and properly seated.<\/p>\n\n\n\n

P\u00e4\u00e4telm\u00e4<\/h2>\n\n\n\n

Pressure decay leak testing is a reliable, cost-effective, and widely adopted method for detecting leaks in manufacturing and industrial applications. By following the correct procedures and troubleshooting potential issues, manufacturers can ensure product integrity and safety.<\/p>\n\n\n\n

Our well-equipped facilities and excellent quality control throughout all stages of manufacturing allow us to guarantee complete satisfaction to buyers of L\u00e4mp\u00f6tiivisteen testaaja<\/a>,Vuototestauslaitteiden valmistaja<\/a>,Vuodon ja tiivisteen lujuuden testaaja<\/a>,Kiina testauslaitteet<\/a>,Materiaalin testauslaitteet<\/a>,Mukautetut testauslaitteet<\/a>,Vetotesteri<\/a>,Tyhji\u00f6 vuototesteri<\/a>,Tekstiilien testaus<\/a>,Kitkakerroin Tester<\/a>,Elektroniikan testi<\/a><\/p>\n\n\n\n

Jos haluat lis\u00e4tietoja t\u00e4st\u00e4 tuotteesta, ota rohkeasti yhteytt\u00e4 meihin. Suosittele muita suosittuja tuotteita sinulle: Bruttovuototestauslaitteet<\/a>, Bruttovuototestauslaitteiden testaus<\/a>, Bruttovuototestauslaitteiden testaus<\/a>, gelbo flex tester valmistaja<\/a>, Gelbo Flex Tester valmistaja<\/a>, Gelbo Flex Tester toimittaja<\/a>, Gelbo Flex Tester Kiina<\/a>, Gelbo Flex Tester -palvelut<\/a>, Vuoto- ja tiivisteen lujuusmittari Kiina<\/a>, Vuodon ja tiivisteen lujuuden testausratkaisu<\/a>, Gelbo Flex Tester -ratkaisu<\/a>, Cof Tester toimittaja<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Johdanto paineh\u00e4vi\u00e4misvuodon testaukseen Paineh\u00e4vi\u00e4misvuodon testaus on yksi yleisimmin k\u00e4ytetyist\u00e4 menetelmist\u00e4 tuotantolinjojen valmistuksessa. Menetelm\u00e4 on yksinkertainen, kustannustehokas verrattuna heliumtestaukseen ja helppo automatisoida, mink\u00e4 vuoksi se on suosittu valinta eri teollisuudenaloilla. Miten paineh\u00e4vi\u00e4misvuodon testaus toimii? Paineen hajoamismenetelm\u00e4ss\u00e4 k\u00e4ytet\u00e4\u00e4n [...]<\/p>","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-989","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.materialstests.com\/fi\/wp-json\/wp\/v2\/posts\/989","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.materialstests.com\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.materialstests.com\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.materialstests.com\/fi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.materialstests.com\/fi\/wp-json\/wp\/v2\/comments?post=989"}],"version-history":[{"count":0,"href":"https:\/\/www.materialstests.com\/fi\/wp-json\/wp\/v2\/posts\/989\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.materialstests.com\/fi\/wp-json\/wp\/v2\/media?parent=989"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.materialstests.com\/fi\/wp-json\/wp\/v2\/categories?post=989"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.materialstests.com\/fi\/wp-json\/wp\/v2\/tags?post=989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}