{"id":425,"date":"2025-02-10T14:49:28","date_gmt":"2025-02-10T06:49:28","guid":{"rendered":"https:\/\/hengoseal.com\/?p=425"},"modified":"2025-07-03T10:08:32","modified_gmt":"2025-07-03T02:08:32","slug":"o-ring-seal-leak-prevention-guide","status":"publish","type":"post","link":"https:\/\/hengoseal.com\/fr\/o-ring-seal-leak-prevention-guide\/","title":{"rendered":"Joint torique\u00a0: le guide ultime de pr\u00e9vention des fuites (2025)"},"content":{"rendered":"

Leaky pipes. Malfunctioning engines. What\u2019s the common culprit? A worn-out O-ring seal.<\/strong>
\nO-rings are small but essential\u2014preventing leaks, saving costs, and ensuring safety.<\/p>\n

O-ring seals work by compressing between two surfaces to block gas or liquid leakage.<\/strong> They're used in engines, valves, pumps, and more.<\/p>\n

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This guide breaks down O-ring materials, failures, applications, and how to choose the best one\u2014based on real use cases.<\/p>\n

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Quel est le but d'un joint torique ?<\/h2>\n

O-rings fill the gap between two surfaces to form a pressure-tight seal.
\nThey\u2019re the most widely used seals in industrial and automotive systems.<\/p>\n

They prevent gas, oil, and air from escaping\u2014even under pressure or vibration.<\/strong><\/p>\n

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O-rings are popular because they\u2019re simple, cheap, and effective. Compared to other sealing methods, they\u2019re easier to install and require less space.
\nNeed a deep dive? Read What Are O-Rings and How Do They Work?<\/a><\/p>\n

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What\u2019s the Difference Between an O-Ring and a Gasket?<\/h2>\n

Both prevent leaks, but they work differently.<\/p>\n

Joints toriques<\/strong> fit into a groove and seal by deformation under pressure.
\nJoints<\/strong> are flat and compress between two surfaces.<\/p>\n

Use an O-ring when your system involves dynamic movement, high pressure, or rotary components.
\nWant to learn about alternatives like lip seals or V-rings? Check Types of Oil Seals: Pros, Applications & Comparison Guide<\/a><\/p>\n

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Which O-Ring Material Should You Choose?<\/h2>\n

Different materials mean different performance.<\/p>\n

NBR (nitrile)<\/strong> resists oil well. FKM (Viton)<\/strong> handles heat and chemicals. EPDM<\/strong> suits steam and outdoor use. Silicone<\/strong> works in extreme temperatures.<\/p>\n

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If you\u2019re sealing hot oil under pressure, check out this comparison:
\n\ud83d\udc49 FKM vs. NBR \u2013 Which to Use in High Temp?<\/a>
\n\ud83d\udc49 Buna vs. Nitrile: What\u2019s the Difference?<\/a><\/p>\n

Also see our custom solution case:
\nFDA-Grade Silicone O-Rings \u2013 When & Why to Use<\/a><\/p>\n

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How Do I Measure the Right O-Ring Size?<\/h2>\n

Choosing the wrong size is a recipe for leaks.<\/p>\n

Use these two key dimensions: <\/p>\n