Caract\u00e9ristiques structurelles\u00a0: Le joint d\u2019\u00e9tanch\u00e9it\u00e9 est parfaitement adapt\u00e9 et tr\u00e8s performant. Les surfaces d\u2019\u00e9tanch\u00e9it\u00e9 du clapet et du si\u00e8ge de soupape sont r\u00e9alis\u00e9es par superposition d\u2019alliages durs \u00e0 base de cobalt rev\u00eatus de Samte, de duret\u00e9s diff\u00e9rentes. L\u2019\u00e9tanch\u00e9it\u00e9 est fiable et offre une duret\u00e9 \u00e9lev\u00e9e, une excellente r\u00e9sistance \u00e0 l\u2019usure, aux hautes temp\u00e9ratures et \u00e0 la corrosion. La tige de soupape subit un traitement de trempe et de nitruration superficielle, lui conf\u00e9rant une r\u00e9sistance exceptionnelle \u00e0 la corrosion, \u00e0 l\u2019abrasion et \u00e0 l\u2019usure.![\"\"](\"https:\/\/cnkazev.com\/wp-content\/uploads\/2026\/04\/DATA-FORM-2.webp\")
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