{"id":44360,"date":"2026-09-30T03:56:10","date_gmt":"2026-09-30T03:56:10","guid":{"rendered":"https:\/\/valve-atlas.com\/cryogenic-valves-lng\/cryogenic-ball-valve\/"},"modified":"2026-09-30T03:56:10","modified_gmt":"2026-09-30T03:56:10","slug":"cryogenic-ball-valve","status":"publish","type":"page","link":"https:\/\/valve-atlas.com\/fr_ca\/cryogenic-valves-lng\/cryogenic-ball-valve\/","title":{"rendered":"Cryogenic Ball Valve: LNG, \u2212196 \u00b0C, Extended Bonnet"},"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=\"\/cryogenic-valves-lng\/\">Vannes cryog\u00e9niques<\/a><i>\/<\/i><span>Cryogenic Ball Valve<\/span><\/nav><p class=\"vx-eyebrow\">Vannes cryog\u00e9niques<\/p><div class=\"vx-lead\"><p>Cryogenic ball valves are used for isolation on LNG, liquid nitrogen, liquid oxygen and argon lines. An extended bonnet protects the packing from the cold, and unidirectional cavity relief prevents liquid trapped in the body cavity from vaporizing and building up pressure.<\/p><\/div><div class=\"vx-chips\"><span>BS 6364<\/span><span>ISO 28921-1<\/span><span>\u2212196 \u00b0C<\/span><span>Cavity relief<\/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-cryogenic-ball-valve.pdf\" target=\"_blank\" rel=\"noopener\">T\u00e9l\u00e9charger la fiche technique (PDF)<\/a><\/div><\/div><figure class=\"vx-intro-media vx-intro-ph\"><div><b>BS 6364<\/b><span>Cryogenic Ball Valve<\/span><\/div><\/figure><\/section>\n<h2 class=\"vx-h2\">Aper\u00e7u<\/h2><p>Cavity relief is usually to the upstream side, through the upstream seat, and is marked by an arrow on the valve body; the valve must be installed accordingly. Bodies are austenitic stainless steel such as CF8M, CF3M, F316 or F316L. In addition to routine tests at ambient temperature, low-temperature helium leak testing is performed as a type test or, on request, on valves selected from production. For oxygen service, oil-free (degreased) cleaning and compatible lubricants are used. For design and test requirements, see our <a href=\"\/2026\/07\/25\/cryogenic-valves-lng-bs-6364-guide\/\">BS 6364 cryogenic valve guide<\/a>.<\/p>\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\">Taper<\/th><td>Floating (small sizes), trunnion mounted (large sizes)<\/td><\/tr><tr><th scope=\"row\">Temperature<\/th><td>Down to \u2212196 \u00b0C (\u2212321 \u00b0F)<\/td><\/tr><tr><th scope=\"row\">Conception<\/th><td>Extended bonnet, unidirectional cavity relief, antistatic, fire-safe option<\/td><\/tr><tr><th scope=\"row\">Mat\u00e9riels<\/th><td>CF8M, CF3M, F316, F316L<\/td><\/tr><tr><th scope=\"row\">Connexions terminales<\/th><td>RF flanged, butt-weld, socket-weld<\/td><\/tr><tr><th scope=\"row\">Essai<\/th><td>Routine tests at ambient temperature; \u2212196 \u00b0C helium test to BS 6364 \/ ISO 28921 as a type test or on request<\/td><\/tr><\/tbody><\/table><\/div>\n<h2 class=\"vx-h2\">Caract\u00e9ristiques principales<\/h2><ul class=\"vx-check\"><li>Extended bonnet keeps the packing from freezing<\/li><li>Relief against cavity overpressure<\/li><li>Helium leak test at \u2212196 \u00b0C on request<\/li><li>Cleaning suitable for oxygen service<\/li><\/ul>\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-cryogenic-ball-valve.pdf\" target=\"_blank\" rel=\"noopener\"><span class=\"vx-pdf\">PDF<\/span><span class=\"vx-dl-t\">Cryogenic 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>Why is a cryogenic ball valve unidirectional?<\/summary><div class=\"vx-faq-a\"><p>Liquefied gas trapped in the body cavity vaporizes as it warms, and pressure rises rapidly. To relieve this pressure, one of the seats is designed to vent the cavity to the upstream side; the valve therefore seals in one direction only, and the installation direction matters.<\/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=\"\/cryogenic-valves-lng\/cryogenic-gate-globe-valve\/\"><div class=\"vx-card-img vx-card-ph\"><span>BS 6364<\/span><\/div><div class=\"vx-card-body\"><h3>Cryogenic Gate and Globe Valves<\/h3><p>Extended bonnet, vented wedge; LNG and industrial gas plants.<\/p><span class=\"vx-more\">Voir les d\u00e9tails<\/span><\/div><\/a><\/div>\n<section class=\"vx-cta\"><div><h2>Request a quote: Cryogenic 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\/Cryogenic Valves\/Cryogenic Ball Valve Cryogenic Valves Cryogenic ball valves are used for isolation on LNG, liquid nitrogen, liquid oxygen and argon lines. An extended bonnet protects the packing from the cold, and unidirectional cavity relief prevents liquid trapped in the body cavity from vaporizing and building up pressure. BS 6364ISO 28921-1\u2212196 \u00b0CCavity relief Request&hellip;<\/p>","protected":false},"author":1,"featured_media":0,"parent":44055,"menu_order":24,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"iawp_total_views":0,"footnotes":""},"class_list":["post-44360","page","type-page","status-publish","hentry","description-off"],"acf":[],"_links":{"self":[{"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/pages\/44360","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=44360"}],"version-history":[{"count":0,"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/pages\/44360\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/pages\/44055"}],"wp:attachment":[{"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/media?parent=44360"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}