{"id":44323,"date":"2026-09-30T03:55:44","date_gmt":"2026-09-30T03:55:44","guid":{"rendered":"https:\/\/valve-atlas.com\/?page_id=44323"},"modified":"2026-09-30T04:08:22","modified_gmt":"2026-09-30T04:08:22","slug":"trunnion-mounted-ball-valve","status":"publish","type":"page","link":"https:\/\/valve-atlas.com\/fr_ca\/api-607-fire-safe-ball-valves\/trunnion-mounted-ball-valve\/","title":{"rendered":"Trunnion Mounted Ball Valve: API 6D, Class 150\u20132500"},"content":{"rendered":"<div class=\"vx-page\"><section class=\"vx-intro vx-intro-has-media\"><div class=\"vx-intro-text\"><nav class=\"vx-crumbs\" aria-label=\"chapelure\"><a href=\"\/\">Accueil<\/a><i>\/<\/i><a href=\"\/industrial-valves\/\">Vannes industrielles<\/a><i>\/<\/i><a href=\"\/api-607-fire-safe-ball-valves\/\">Vannes \u00e0 bille<\/a><i>\/<\/i><span>vanne \u00e0 bille mont\u00e9e sur tourillon<\/span><\/nav><p class=\"vx-eyebrow\">Vannes \u00e0 bille<\/p><div class=\"vx-lead\"><p>In a trunnion mounted ball valve the ball is supported on upper and lower stems (trunnions), and line pressure moves the spring-loaded seats against the ball rather than moving the ball. Operating torque therefore stays low, and it is the standard isolation valve for large-diameter, high-pressure pipeline, station and process lines.<\/p><\/div><div class=\"vx-chips\"><span>API 6D<\/span><span>ASME B16.34<\/span><span>DBB \/ DIB<\/span><span>Classe 150\u20132500<\/span><\/div><div class=\"vx-actions\"><a class=\"vx-btn\" href=\"\/contact\/\">Demander un devis<\/a><a class=\"vx-btn vx-btn-line\" href=\"\/wp-content\/uploads\/2026\/09\/valveatlas-datasheet-trunnion-mounted-ball-valve.pdf\" target=\"_blank\" rel=\"noopener\">T\u00e9l\u00e9charger la fiche technique (PDF)<\/a><\/div><\/div><figure class=\"vx-intro-media\"><img fetchpriority=\"high\" decoding=\"async\" class=\"vx-intro-img wp-image-44274\" src=\"\/wp-content\/uploads\/2026\/09\/trunnion-mounted-ball-valve-api-6d-768x576.jpg\" srcset=\"\/wp-content\/uploads\/2026\/09\/trunnion-mounted-ball-valve-api-6d-300x225.jpg 300w, \/wp-content\/uploads\/2026\/09\/trunnion-mounted-ball-valve-api-6d-768x576.jpg 768w, \/wp-content\/uploads\/2026\/09\/trunnion-mounted-ball-valve-api-6d-1024x768.jpg 1024w, \/wp-content\/uploads\/2026\/09\/trunnion-mounted-ball-valve-api-6d.jpg 1200w\" sizes=\"(max-width: 900px) 100vw, 480px\" width=\"1200\" height=\"900\" alt=\"API 6D trunnion mounted ball valve with gear operator\" loading=\"eager\"><\/figure><\/section>\n<h2 class=\"vx-h2\">Aper\u00e7u<\/h2><p>The seats are pressed against the ball by springs and by line pressure: at low pressure the springs provide the seal, at high pressure the pressure force does. This arrangement enables the DBB and DIB functions defined in API 6D, body cavity relief and emergency sealant injection into the seats.<\/p><p>The body is cast steel, two-piece or three-piece (center body plus two end closures). Larger sizes are operated by gear operator or actuator; an extended stem option is available for buried (underground) lines.<\/p>\n<div class=\"vx-gallery\"><figure><img class=\"vx-gal-img wp-image-44275 lazyload\" data-src=\"\/wp-content\/uploads\/2026\/09\/trunnion-mounted-ball-valves-768x576.jpg\" data-srcset=\"\/wp-content\/uploads\/2026\/09\/trunnion-mounted-ball-valves-300x225.jpg 300w, \/wp-content\/uploads\/2026\/09\/trunnion-mounted-ball-valves-768x576.jpg 768w, \/wp-content\/uploads\/2026\/09\/trunnion-mounted-ball-valves-1024x768.jpg 1024w, \/wp-content\/uploads\/2026\/09\/trunnion-mounted-ball-valves.jpg 1200w\" data-sizes=\"auto, (max-width: 700px) 100vw, 380px\" width=\"1200\" height=\"900\" alt=\"Trunnion mounted ball valves\" decoding=\"async\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1200px; --smush-placeholder-aspect-ratio: 1200\/900;\"><\/figure><\/div>\n<h2 class=\"vx-h2\">Sp\u00e9cifications techniques<\/h2><div class=\"vx-table-wrap\"><table class=\"vx-table vx-spec\"><tbody><tr><th scope=\"row\">Taille<\/th><td>2\u2033\u201360\u2033 (DN50\u2013DN1500)<\/td><\/tr><tr><th scope=\"row\">classe de pression<\/th><td>Classe ASME 150\u20132500<\/td><\/tr><tr><th scope=\"row\">Connexions terminales<\/th><td>brides RF \/ RTJ (ASME B16.5 \/ B16.47), soudure bout \u00e0 bout (ASME B16.25)<\/td><\/tr><tr><th scope=\"row\">Corps<\/th><td>Two-piece or three-piece cast; full bore or reduced bore<\/td><\/tr><tr><th scope=\"row\">Si\u00e8ges<\/th><td>Spring-loaded seats; PTFE, RPTFE, PEEK, nylon or metal (hard-faced)<\/td><\/tr><tr><th scope=\"row\">Mat\u00e9riels<\/th><td>WCB, WCC, LCC, CF8M; duplex (4A\/5A) and special alloys<\/td><\/tr><tr><th scope=\"row\">Functions<\/th><td>DBB, DIB-1, DIB-2; cavity relief; emergency sealant injection; drain and vent connections<\/td><\/tr><tr><th scope=\"row\">Op\u00e9ration<\/th><td>Gear operator, pneumatic (scotch-yoke), electric or gas-over-oil actuator; extended stem<\/td><\/tr><\/tbody><\/table><\/div>\n<h2 class=\"vx-h2\">Caract\u00e9ristiques principales<\/h2><ul class=\"vx-check\"><li>Low operating torque for large sizes and high pressure<\/li><li>Double block and bleed (DBB\/DIB) options<\/li><li>Emergency sealant injection<\/li><li>Fire-safe (API 607) and antistatic design<\/li><li>Extended stem for buried lines<\/li><\/ul>\n<h2 class=\"vx-h2\">Mat\u00e9riaux typiques des pi\u00e8ces<\/h2><div class=\"vx-table-wrap\"><table class=\"vx-table\"><thead><tr><th scope=\"col\">Partie<\/th><th scope=\"col\">WCB<\/th><th scope=\"col\">LCB \/ LCC<\/th><th scope=\"col\">CF8M<\/th><th scope=\"col\">CF8<\/th><\/tr><\/thead><tbody><tr><td>Body, end caps (adapters)<\/td><td>A216 WCB<\/td><td>A352 LCB \/ LCC<\/td><td>A351 CF8M<\/td><td>A351 CF8<\/td><\/tr><tr><td>Ball, stem, seat ring<\/td><td>A105N + ENP<\/td><td>A350 LF2 + ENP<\/td><td>A182 F316<\/td><td>A182 F304<\/td><\/tr><tr><td>Trunnion, gland flange<\/td><td>A105N<\/td><td>A350 LF2<\/td><td>A182 F316<\/td><td>A182 F304<\/td><\/tr><tr><td>Seat insert<\/td><td>PTFE \/ RPTFE \/ PEEK<\/td><td>PTFE \/ RPTFE \/ PEEK<\/td><td>PTFE \/ RPTFE \/ PEEK<\/td><td>PTFE \/ RPTFE \/ PEEK<\/td><\/tr><tr><td>O-rings, fire-safe seals<\/td><td>FKM, graphite<\/td><td>FKM, graphite<\/td><td>FKM, graphite<\/td><td>FKM, graphite<\/td><\/tr><tr><td>Anti-static (grounding) spring<\/td><td>SS304<\/td><td>SS304<\/td><td>SS316<\/td><td>SS304<\/td><\/tr><\/tbody><\/table><\/div><p>ENP: electroless nickel plating. For abrasive or high-temperature service, balls and seats can be supplied metal-seated with tungsten carbide or chromium carbide coating.<\/p><h2 class=\"vx-h2\">Catalog data<\/h2><div class=\"vx-table-wrap\"><table class=\"vx-table vx-spec\"><tbody><tr><th scope=\"row\">construction corporelle<\/th><td>2-piece or 3-piece bolted body, side entry<\/td><\/tr><tr><th scope=\"row\">Caract\u00e9ristiques de conception<\/th><td>Anti-blowout stem, anti-static design, fire-safe (API 607 \/ API 6FA), double block and bleed, cavity pressure relief<\/td><\/tr><tr><th scope=\"row\">Entretien<\/th><td>Emergency sealant injection to seats and stem; drain and vent valves<\/td><\/tr><tr><th scope=\"row\">Actuator mounting<\/th><td>ISO 5211 mounting pad; gear operator, pneumatic, electric and hydraulic actuators<\/td><\/tr><\/tbody><\/table><\/div>\n<h2 class=\"vx-h2\">Documentation et tests<\/h2><p>Dans le cadre de projets industriels, la documentation technique est aussi importante que la vanne elle-m\u00eame. Nous confirmons la certification et le p\u00e9rim\u00e8tre des tests pour chaque \u00e9l\u00e9ment d\u00e8s l&#039;\u00e9tablissement du devis.<\/p><ul class=\"vx-check\"><li><strong>EN 10204 3.1 certificats de mat\u00e9riaux<\/strong> pour les pi\u00e8ces sous pression et en contact avec le fluide, tra\u00e7abilit\u00e9 par num\u00e9ro de coul\u00e9e<\/li><li><strong>EN 10204 3.2<\/strong> avec inspection par un tiers, sur demande<\/li><li><strong>Rapports d&#039;essais de pression<\/strong> essais de coque, de si\u00e8ge et, le cas \u00e9ch\u00e9ant, de gaz, conformes aux normes API 598 ou EN 12266-1<\/li><li><strong>Certificats d&#039;essai au feu<\/strong> (API 607 \/ ISO 10497) pour les conceptions test\u00e9es en mati\u00e8re de r\u00e9sistance au feu<\/li><li><strong>Rapports PMI<\/strong> pour les mat\u00e9riaux en alliage et en acier inoxydable<\/li><li><strong>Rapports d&#039;inspection dimensionnelle, visuelle et de rev\u00eatement<\/strong><\/li><li><strong>D\u00e9claration CE PDSE 2014\/68\/UE<\/strong> pour les \u00e9quipements relevant de son champ d&#039;application<\/li><li><strong>D\u00e9claration de conformit\u00e9 NACE MR0175 \/ ISO 15156<\/strong> pour service acide (H\u2082S)<\/li><\/ul>\n<h2 class=\"vx-h2\">Fiche technique<\/h2><ul class=\"vx-dl-list\"><li><a href=\"\/wp-content\/uploads\/2026\/09\/valveatlas-datasheet-trunnion-mounted-ball-valve.pdf\" target=\"_blank\" rel=\"noopener\"><span class=\"vx-pdf\">PDF<\/span><span class=\"vx-dl-t\">Trunnion Mounted Ball Valve: technical datasheet<\/span><span class=\"vx-dl-m\">PDF \u00b7 Anglais \u00b7 2\u20133 pages<\/span><\/a><\/li><\/ul>\n<section class=\"vx-faq\"><h2 class=\"vx-h2\">Foire aux questions<\/h2><details class=\"vx-faq-item\"><summary>When is a trunnion mounted ball valve selected?<\/summary><div class=\"vx-faq-a\"><p>When size and pressure class increase (for example above about 6&#8243;\u20138&#8243; in Class 300, and from smaller sizes at Class 600 and above), when DBB\/DIB function is required, or when low-torque automation is needed.<\/p><\/div><\/details><details class=\"vx-faq-item\"><summary>What does emergency sealant injection do?<\/summary><div class=\"vx-faq-a\"><p>If a seat is damaged, sealant is injected into the seats to restore a temporary seal without removing the valve from the line. On pipeline and station valves this keeps the line in operation until maintenance can be scheduled.<\/p><\/div><\/details><\/section>\n<h2 class=\"vx-h2\">Produits associ\u00e9s<\/h2><div class=\"vx-grid\"><a class=\"vx-card vx-card-media\" href=\"\/api-607-fire-safe-ball-valves\/floating-ball-valve\/\"><div class=\"vx-card-img\"><img class=\"vx-thumb wp-image-44282 lazyload\" data-src=\"\/wp-content\/uploads\/2026\/09\/flanged-floating-ball-valve-768x576.jpg\" data-srcset=\"\/wp-content\/uploads\/2026\/09\/flanged-floating-ball-valve-300x225.jpg 300w, \/wp-content\/uploads\/2026\/09\/flanged-floating-ball-valve-768x576.jpg 768w, \/wp-content\/uploads\/2026\/09\/flanged-floating-ball-valve-1024x768.jpg 1024w, \/wp-content\/uploads\/2026\/09\/flanged-floating-ball-valve.jpg 1200w\" data-sizes=\"auto, (max-width: 700px) 100vw, 380px\" width=\"1200\" height=\"900\" alt=\"Two-piece flanged floating ball valve\" decoding=\"async\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1200px; --smush-placeholder-aspect-ratio: 1200\/900;\"><\/div><div class=\"vx-card-body\"><h3>vanne \u00e0 bille flottante<\/h3><p>\u00bd\u201d\u201310\u2033, Classe 150\u2013600; deux pi\u00e8ces et trois pi\u00e8ces, r\u00e9sistant au feu, antistatique.<\/p><span class=\"vx-more\">Voir les d\u00e9tails<\/span><\/div><\/a><a class=\"vx-card vx-card-media\" href=\"\/api-607-fire-safe-ball-valves\/forged-trunnion-ball-valve\/\"><div class=\"vx-card-img\"><img class=\"vx-thumb wp-image-44276 lazyload\" data-src=\"\/wp-content\/uploads\/2026\/09\/forged-trunnion-ball-valve-768x576.jpg\" data-srcset=\"\/wp-content\/uploads\/2026\/09\/forged-trunnion-ball-valve-300x225.jpg 300w, \/wp-content\/uploads\/2026\/09\/forged-trunnion-ball-valve-768x576.jpg 768w, \/wp-content\/uploads\/2026\/09\/forged-trunnion-ball-valve-1024x768.jpg 1024w, \/wp-content\/uploads\/2026\/09\/forged-trunnion-ball-valve.jpg 1200w\" data-sizes=\"auto, (max-width: 700px) 100vw, 380px\" width=\"1200\" height=\"900\" alt=\"Forged body trunnion mounted ball valve with gear operator\" decoding=\"async\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1200px; --smush-placeholder-aspect-ratio: 1200\/900;\"><\/div><div class=\"vx-card-body\"><h3>Vanne \u00e0 bille \u00e0 tourillon en acier forg\u00e9<\/h3><p>Classe 150\u20132500, principalement haute pression ; A105N, LF2, F316, F51 ; API 607.<\/p><span class=\"vx-more\">Voir les d\u00e9tails<\/span><\/div><\/a><a class=\"vx-card vx-card-media\" href=\"\/api-607-fire-safe-ball-valves\/metal-seated-ball-valve\/\"><div class=\"vx-card-img\"><img class=\"vx-thumb wp-image-44277 lazyload\" data-src=\"\/wp-content\/uploads\/2026\/09\/forged-three-piece-ball-valve-768x576.jpg\" data-srcset=\"\/wp-content\/uploads\/2026\/09\/forged-three-piece-ball-valve-300x225.jpg 300w, \/wp-content\/uploads\/2026\/09\/forged-three-piece-ball-valve-768x576.jpg 768w, \/wp-content\/uploads\/2026\/09\/forged-three-piece-ball-valve-1024x768.jpg 1024w, \/wp-content\/uploads\/2026\/09\/forged-three-piece-ball-valve.jpg 1200w\" data-sizes=\"auto, (max-width: 700px) 100vw, 380px\" width=\"1200\" height=\"900\" alt=\"Three-piece forged body ball valve, bare stem\" decoding=\"async\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1200px; --smush-placeholder-aspect-ratio: 1200\/900;\"><\/div><div class=\"vx-card-body\"><h3>Vanne \u00e0 bille \u00e0 si\u00e8ge m\u00e9tallique<\/h3><p>Billes et si\u00e8ges rev\u00eatus de carbure de tungst\u00e8ne ou de chrome ; service abrasif et \u00e0 haute temp\u00e9rature.<\/p><span class=\"vx-more\">Voir les d\u00e9tails<\/span><\/div><\/a><\/div>\n<section class=\"vx-cta\"><div><h2>Request a quote: Trunnion Mounted Ball Valve<\/h2><p>Partagez votre liste de vannes, votre fiche technique ou le cahier des charges de votre projet. Nous examinons les normes, les mat\u00e9riaux et la documentation ligne par ligne et vous soumettons une offre d\u00e9taill\u00e9e, toute d\u00e9rogation au cahier des charges \u00e9tant mentionn\u00e9e par \u00e9crit.<\/p><\/div><div class=\"vx-cta-actions\"><a class=\"vx-btn\" href=\"\/contact\/\">Demander un devis<\/a><a class=\"vx-cta-link\" href=\"mailto:info@valve-atlas.com\">info@valve-atlas.com<\/a><a class=\"vx-cta-link\" href=\"tel:+16475537109\">+1 (647) 553-7109<\/a><\/div><\/section><\/div>","protected":false},"excerpt":{"rendered":"<p>Home\/Industrial Valves\/Ball Valves\/Trunnion Mounted Ball Valve Ball Valves In a trunnion mounted ball valve the ball is supported on upper and lower stems (trunnions), and line pressure moves the spring-loaded seats against the ball rather than moving the ball. Operating torque therefore stays low, and it is the standard isolation valve for large-diameter, high-pressure pipeline,&hellip;<\/p>","protected":false},"author":1,"featured_media":0,"parent":44043,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"iawp_total_views":0,"footnotes":""},"class_list":["post-44323","page","type-page","status-publish","hentry","description-off"],"acf":[],"_links":{"self":[{"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/pages\/44323","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/comments?post=44323"}],"version-history":[{"count":2,"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/pages\/44323\/revisions"}],"predecessor-version":[{"id":44375,"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/pages\/44323\/revisions\/44375"}],"up":[{"embeddable":true,"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/pages\/44043"}],"wp:attachment":[{"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/media?parent=44323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}