{"id":976,"date":"2026-04-12T23:09:01","date_gmt":"2026-04-13T03:09:01","guid":{"rendered":"https:\/\/www.songhaiflange.com\/?p=976"},"modified":"2026-04-17T01:47:30","modified_gmt":"2026-04-17T05:47:30","slug":"flange-bolt-torque-values-complete-reference-chart-for-asme-b16-5","status":"publish","type":"post","link":"https:\/\/www.songhaiflange.com\/fr\/2026\/04\/12\/flange-bolt-torque-values-complete-reference-chart-for-asme-b16-5\/","title":{"rendered":"Valeurs de couple des boulons de bride - Tableau de r\u00e9f\u00e9rence complet pour ASME B16.5"},"content":{"rendered":"<h2>Pourquoi un couple de serrage correct des boulons de bride permet d'\u00e9viter des fuites co\u00fbteuses<\/h2>\n<p>Un couple de serrage incorrect est l'une des principales causes de d\u00e9faillance des joints de bride. L'application d'un couple de serrage correct garantit une bonne compression du joint et permet d'\u00e9viter les arr\u00eats et les incidents de s\u00e9curit\u00e9.<\/p>\n<h2>Formule de calcul du couple cible<\/h2>\n<p>Formule ASME PCC-1 Appendix K : <strong>T = K x D x F \/ N<\/strong><\/p>\n<ul>\n<li>T = Couple cible par boulon<\/li>\n<li>K = Facteur d'\u00e9crasement (frottement du filetage)<\/li>\n<li>D = Diam\u00e8tre nominal du boulon<\/li>\n<li>F = Charge totale requise pour le boulon<\/li>\n<li>N = Nombre de boulons<\/li>\n<\/ul>\n<h3>Valeurs du facteur d'\u00e9crou<\/h3>\n<ul>\n<li>Acier au carbone non lubrifi\u00e9 : K = 0.20<\/li>\n<li>Lubrifiant \u00e0 base de molybd\u00e8ne : K = 0.13-0.15<\/li>\n<li>Goujons rev\u00eatus de PTFE : K = 0.10<\/li>\n<\/ul>\n<h2>Valeurs de couple de r\u00e9f\u00e9rence (filets lubrifi\u00e9s)<\/h2>\n<h3>Brides de classe 150<\/h3>\n<table border=\"1\" cellpadding=\"8\">\n<tr>\n<th>NPS<\/th>\n<th>Taille du boulon<\/th>\n<th>Boulons<\/th>\n<th>Couple (ft-lbs)<\/th>\n<\/tr>\n<tr>\n<td>1\/2<\/td>\n<td>1\/2-13<\/td>\n<td>4<\/td>\n<td>15<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>5\/8-11<\/td>\n<td>4<\/td>\n<td>25<\/td>\n<\/tr>\n<tr>\n<td>6<\/td>\n<td>3\/4-10<\/td>\n<td>8<\/td>\n<td>45<\/td>\n<\/tr>\n<tr>\n<td>8<\/td>\n<td>7\/8-9<\/td>\n<td>8<\/td>\n<td>60<\/td>\n<\/tr>\n<tr>\n<td>12<\/td>\n<td>7\/8-9<\/td>\n<td>12<\/td>\n<td>60<\/td>\n<\/tr>\n<\/table>\n<h3>Brides de classe 300<\/h3>\n<table border=\"1\" cellpadding=\"8\">\n<tr>\n<th>NPS<\/th>\n<th>Taille du boulon<\/th>\n<th>Boulons<\/th>\n<th>Couple (ft-lbs)<\/th>\n<\/tr>\n<tr>\n<td>1\/2<\/td>\n<td>1\/2-13<\/td>\n<td>4<\/td>\n<td>20<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>3\/4-10<\/td>\n<td>4<\/td>\n<td>45<\/td>\n<\/tr>\n<tr>\n<td>6<\/td>\n<td>7\/8-9<\/td>\n<td>8<\/td>\n<td>90<\/td>\n<\/tr>\n<tr>\n<td>8<\/td>\n<td>1-8<\/td>\n<td>8<\/td>\n<td>120<\/td>\n<\/tr>\n<tr>\n<td>12<\/td>\n<td>1-1\/8-8<\/td>\n<td>12<\/td>\n<td>160<\/td>\n<\/tr>\n<\/table>\n<h2>Proc\u00e9dure de serrage en 4 \u00e9tapes<\/h2>\n<ol>\n<li>Passe 1 : motif en \u00e9toile au couple 30%<\/li>\n<li>Passe 2 : motif en \u00e9toile au couple 60%<\/li>\n<li>Passe 3 : Motif en \u00e9toile au couple 100%<\/li>\n<li>Passe 4 : motif circulaire \u00e0 100% jusqu'\u00e0 ce qu'il n'y ait plus de rotation<\/li>\n<\/ol>\n<h2>Erreurs courantes<\/h2>\n<ul>\n<li>Pas de lubrifiant sur les goujons<\/li>\n<li>Sauter la s\u00e9quence multi-passages<\/li>\n<li>M\u00e9lange de qualit\u00e9s de boulons<\/li>\n<li>R\u00e9utilisation d'anciens joints<\/li>\n<\/ul>\n<p><strong>Contacter Songhai Flange<\/strong> pour les sp\u00e9cifications de couple et la documentation technique.<\/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>Why Proper Flange Bolt Torque Prevents Costly Leaks Incorrect bolt torque is a leading cause of flange joint failures. Applying correct torque ensures proper gasket compression and prevents shutdowns and safety incidents. Target Torque Calculation Formula ASME PCC-1 Appendix K formula: T = K x D x F \/ N T = Target torque per [&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":[81,87,66,88,89],"class_list":["post-976","post","type-post","status-publish","format-standard","hentry","category-blog","tag-ansi","tag-bolt-torque","tag-flange","tag-gasket","tag-pn16"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.songhaiflange.com\/fr\/wp-json\/wp\/v2\/posts\/976","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=976"}],"version-history":[{"count":2,"href":"https:\/\/www.songhaiflange.com\/fr\/wp-json\/wp\/v2\/posts\/976\/revisions"}],"predecessor-version":[{"id":988,"href":"https:\/\/www.songhaiflange.com\/fr\/wp-json\/wp\/v2\/posts\/976\/revisions\/988"}],"wp:attachment":[{"href":"https:\/\/www.songhaiflange.com\/fr\/wp-json\/wp\/v2\/media?parent=976"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/fr\/wp-json\/wp\/v2\/categories?post=976"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/fr\/wp-json\/wp\/v2\/tags?post=976"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}