{"id":1026,"date":"2026-04-20T22:34:21","date_gmt":"2026-04-21T02:34:21","guid":{"rendered":"https:\/\/www.songhaiflange.com\/?p=1026"},"modified":"2026-04-21T20:18:43","modified_gmt":"2026-04-22T00:18:43","slug":"flange-bolt-torque-values-complete-chart-for-all-pressure-classes","status":"publish","type":"post","link":"https:\/\/www.songhaiflange.com\/fr\/2026\/04\/20\/flange-bolt-torque-values-complete-chart-for-all-pressure-classes\/","title":{"rendered":"Valeurs de couple des boulons de bride Tableau complet pour toutes les classes de pression"},"content":{"rendered":"<h2>Guide de serrage des boulons de bride<\/h2>\n<p>Un couple de serrage correct des boulons est essentiel pour obtenir des joints de bride \u00e9tanches. Un serrage insuffisant entra\u00eene l'\u00e9clatement du joint, tandis qu'un serrage excessif peut endommager les joints ou d\u00e9former les faces de la bride.<\/p>\n<h3>L'importance du couple de serrage des boulons<\/h3>\n<ul>\n<li>Assure une compression uniforme du joint<\/li>\n<li>Pr\u00e9vient les fuites de la bride dans les conditions d'utilisation<\/li>\n<li>Compense le fluage et la relaxation du joint<\/li>\n<li>Maintient l'int\u00e9grit\u00e9 du joint pendant les cycles thermiques<\/li>\n<\/ul>\n<h3>Valeurs de couple des boulons de classe 150 (pi-lb)<\/h3>\n<table>\n<tr>\n<th>Taille<\/th>\n<th>Taille du boulon<\/th>\n<th>Quantit\u00e9<\/th>\n<th>Non lubrifi\u00e9<\/th>\n<th>Lubrifi\u00e9<\/th>\n<\/tr>\n<tr>\n<td>1\/2\u2033<\/td>\n<td>1\/2\u2033-13<\/td>\n<td>4<\/td>\n<td>45<\/td>\n<td>35<\/td>\n<\/tr>\n<tr>\n<td>1\u2033<\/td>\n<td>5\/8\u2033-11<\/td>\n<td>4<\/td>\n<td>85<\/td>\n<td>65<\/td>\n<\/tr>\n<tr>\n<td>2\u2033<\/td>\n<td>3\/4\u2033-10<\/td>\n<td>4<\/td>\n<td>150<\/td>\n<td>115<\/td>\n<\/tr>\n<tr>\n<td>4\u2033<\/td>\n<td>5\/8\u2033-11<\/td>\n<td>8<\/td>\n<td>85<\/td>\n<td>65<\/td>\n<\/tr>\n<tr>\n<td>6\u2033<\/td>\n<td>3\/4\u2033-10<\/td>\n<td>8<\/td>\n<td>150<\/td>\n<td>115<\/td>\n<\/tr>\n<tr>\n<td>12\u2033<\/td>\n<td>7\/8\u2033-9<\/td>\n<td>12<\/td>\n<td>250<\/td>\n<td>190<\/td>\n<\/tr>\n<\/table>\n<h3>Valeurs du couple de serrage des boulons de la classe 300 (pi-lb)<\/h3>\n<table>\n<tr>\n<th>Taille<\/th>\n<th>Taille du boulon<\/th>\n<th>Quantit\u00e9<\/th>\n<th>Non lubrifi\u00e9<\/th>\n<th>Lubrifi\u00e9<\/th>\n<\/tr>\n<tr>\n<td>1\/2\u2033<\/td>\n<td>1\/2\u2033-13<\/td>\n<td>4<\/td>\n<td>65<\/td>\n<td>50<\/td>\n<\/tr>\n<tr>\n<td>2\u2033<\/td>\n<td>3\/4\u2033-10<\/td>\n<td>8<\/td>\n<td>185<\/td>\n<td>140<\/td>\n<\/tr>\n<tr>\n<td>4\u2033<\/td>\n<td>3\/4\u2033-10<\/td>\n<td>8<\/td>\n<td>185<\/td>\n<td>140<\/td>\n<\/tr>\n<tr>\n<td>6\u2033<\/td>\n<td>7\/8\u2033-9<\/td>\n<td>8<\/td>\n<td>290<\/td>\n<td>220<\/td>\n<\/tr>\n<tr>\n<td>12\u2033<\/td>\n<td>1\u2033-8<\/td>\n<td>12<\/td>\n<td>425<\/td>\n<td>320<\/td>\n<\/tr>\n<\/table>\n<h3>Classe 600-2500 Lignes directrices en mati\u00e8re de couple<\/h3>\n<p>Les classes de pression plus \u00e9lev\u00e9es n\u00e9cessitent des valeurs de couple nettement plus \u00e9lev\u00e9es. Toujours se r\u00e9f\u00e9rer aux sp\u00e9cifications du fabricant pour les brides des classes 900, 1500 et 2500.<\/p>\n<h3>Proc\u00e9dure de serrage des boulons<\/h3>\n<ol>\n<li><strong>Propre :<\/strong> \u00c9liminer la salet\u00e9, la rouille et le vieux mat\u00e9riau de joint des faces de la bride.<\/li>\n<li><strong>Inspecter :<\/strong> V\u00e9rifier que les faces de la bride ne sont pas endommag\u00e9es ou d\u00e9form\u00e9es<\/li>\n<li><strong>Lubrifier :<\/strong> Appliquer de la p\u00e2te antigrippante sur les filets des boulons et les faces des \u00e9crous.<\/li>\n<li><strong>Ins\u00e9rer :<\/strong> Placer le joint centr\u00e9 sur la face de la bride<\/li>\n<li><strong>Serrer \u00e0 la main :<\/strong> Serrer tous les \u00e9crous \u00e0 la main<\/li>\n<li><strong>Mod\u00e8le :<\/strong> Utiliser le mod\u00e8le \u00e9toile\/crois\u00e9 pour une compression uniforme<\/li>\n<li><strong>S\u00e9quence :<\/strong> Couple \u00e0 30%, puis 60%, puis 100% de la valeur finale<\/li>\n<li><strong>V\u00e9rifier :<\/strong> Rev\u00e9rifier tous les boulons apr\u00e8s le serrage initial<\/li>\n<\/ol>\n<h3>Consid\u00e9rations importantes<\/h3>\n<ul>\n<li><strong>Type de joint :<\/strong> Des joints diff\u00e9rents n\u00e9cessitent des charges de compression diff\u00e9rentes<\/li>\n<li><strong>Mat\u00e9riau du boulon :<\/strong> Les normes de r\u00e9sistance ASTM A193 B7 et B16 sont diff\u00e9rentes.<\/li>\n<li><strong>Lubrification :<\/strong> R\u00e9duit le couple requis de 20-25%<\/li>\n<li><strong>Temp\u00e9rature :<\/strong> Un serrage \u00e0 chaud peut \u00eatre n\u00e9cessaire pour les applications \u00e0 haute temp\u00e9rature.<\/li>\n<li><strong>Resserrage :<\/strong> Envisager un nouveau serrage apr\u00e8s les cycles thermiques<\/li>\n<\/ul>\n<h3>Les erreurs courantes \u00e0 \u00e9viter<\/h3>\n<ul>\n<li>Utilisation de cl\u00e9s \u00e0 chocs sans \u00e9talonnage<\/li>\n<li>Serrage circulaire au lieu d'un serrage en \u00e9toile<\/li>\n<li>Sauter la s\u00e9quence de couple en plusieurs \u00e9tapes<\/li>\n<li>R\u00e9utilisation de boulons endommag\u00e9s ou \u00e9tir\u00e9s<\/li>\n<li>Ignorer les recommandations du fabricant de joints en mati\u00e8re de couple de serrage<\/li>\n<\/ul>\n<p>Le serrage correct des boulons est essentiel pour assurer l'\u00e9tanch\u00e9it\u00e9 des joints de bride. Il convient de toujours suivre les proc\u00e9dures \u00e9tablies et d'utiliser des outils dynamom\u00e9triques calibr\u00e9s.<\/p>\n<p><strong>WhatsApp :<\/strong>\u00a0+86-18658777855<br \/>\n<strong>Courriel :<\/strong>\u00a01007788887@qq.com<br \/>\n<a href=\"https:\/\/www.720yun.com\/vr\/a6ajt7ynrw0\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-884\" src=\"http:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4.webp\" alt=\"\" width=\"1290\" height=\"2317\" title=\"\" srcset=\"https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4.webp 1290w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-167x300.webp 167w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-570x1024.webp 570w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-768x1379.webp 768w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-855x1536.webp 855w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-1140x2048.webp 1140w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-7x12.webp 7w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-416x747.webp 416w\" sizes=\"auto, (max-width: 1290px) 100vw, 1290px\" \/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Proper Flange Bolt Torquing Guide Correct bolt torque is critical for achieving leak-free flange joints. Under-torquing causes gasket blowout, while over-torquing can damage gaskets or warp flange faces. Why Bolt Torque Matters Ensures uniform gasket compression Prevents flange leakage under operating conditions Compensates for gasket creep and relaxation Maintains joint integrity during thermal cycling Class [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[87,66,88,72],"class_list":["post-1026","post","type-post","status-publish","format-standard","hentry","category-blog","tag-bolt-torque","tag-flange","tag-gasket","tag-rating"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.songhaiflange.com\/fr\/wp-json\/wp\/v2\/posts\/1026","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.songhaiflange.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.songhaiflange.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.songhaiflange.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.songhaiflange.com\/fr\/wp-json\/wp\/v2\/comments?post=1026"}],"version-history":[{"count":2,"href":"https:\/\/www.songhaiflange.com\/fr\/wp-json\/wp\/v2\/posts\/1026\/revisions"}],"predecessor-version":[{"id":1035,"href":"https:\/\/www.songhaiflange.com\/fr\/wp-json\/wp\/v2\/posts\/1026\/revisions\/1035"}],"wp:attachment":[{"href":"https:\/\/www.songhaiflange.com\/fr\/wp-json\/wp\/v2\/media?parent=1026"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/fr\/wp-json\/wp\/v2\/categories?post=1026"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/fr\/wp-json\/wp\/v2\/tags?post=1026"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}