{"id":19364,"date":"2025-04-22T07:27:41","date_gmt":"2025-04-22T07:27:41","guid":{"rendered":"https:\/\/janhenvalve.com\/?p=19364"},"modified":"2025-07-07T04:02:20","modified_gmt":"2025-07-07T04:02:20","slug":"en-valve","status":"publish","type":"post","link":"https:\/\/janhenvalve.com\/fr_fr\/en-valve\/","title":{"rendered":"Analyse compl\u00e8te des normes EN relatives aux vannes\u00a0: Guide essentiel des r\u00e9glementations techniques europ\u00e9ennes"},"content":{"rendered":"<h1><span style=\"font-weight: 400;\">Qu&#039;est-ce que la norme EN\u00a0? Quel est le code technique de la norme EN pour les vannes\u00a0?<\/span><\/h1>\n<h1><span style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-19458 aligncenter\" src=\"https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/27b8b5dec490d39a5296699e96553fb.jpg\" alt=\"Norme europ\u00e9enne (EN)\" width=\"520\" height=\"345\" \/><\/span><\/h1>\n<p><span style=\"font-weight: 400;\">Normes EN, nom complet<\/span> <b>europ\u00e9en<\/b> <span style=\"font-weight: 400;\">Norm, are unified technical specifications formulated by authoritative organizations such as the European Committee for Standardization (CEN) and the European Committee for Electrotechnical Standardization (CENELEC). The birth of these standards stems from the needs of the European integration process &#8211; to promote the free flow of goods, services and personnel within the EU by eliminating technical barriers between European member states. EN standards not only cover traditional industrial fields (such as machinery manufacturing and construction engineering), but also involve emerging technologies (such as renewable energy and digital security). In<\/span> <span style=\"font-weight: 400;\">Dans le domaine des vannes, les normes EN d\u00e9finissent l&#039;ensemble des exigences relatives aux mat\u00e9riaux, \u00e0 la conception, aux essais, etc., et leur valeur juridique est \u00e9quivalente \u00e0 celle des normes nationales dans les \u00c9tats membres de l&#039;UE.<\/span> <span style=\"font-weight: 400;\">Son processus d&#039;\u00e9laboration met l&#039;accent sur l&#039;\u00e9quilibre des int\u00e9r\u00eats de multiples parties prenantes, et les entreprises, les gouvernements et les organisations de consommateurs participent ensemble pour garantir la scientificit\u00e9 et l&#039;universalit\u00e9 des normes.<\/span><\/p>\n<h3><b>Le statut juridique des normes EN\u00a0: la fronti\u00e8re entre obligatoire et volontaire<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Sur le march\u00e9 de l&#039;UE, la port\u00e9e juridique des normes EN d\u00e9pend de leur r\u00e9f\u00e9rence par les directives europ\u00e9ennes.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-19463\" src=\"https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/685e934e2cc12d6bcacc731ed709ff2-scaled.png\" alt=\"Normes EN pour les vannes\" width=\"833\" height=\"468\" srcset=\"https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/685e934e2cc12d6bcacc731ed709ff2-scaled.png 2560w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/685e934e2cc12d6bcacc731ed709ff2-768x432.png 768w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/685e934e2cc12d6bcacc731ed709ff2-1536x864.png 1536w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/685e934e2cc12d6bcacc731ed709ff2-2048x1152.png 2048w\" sizes=\"auto, (max-width: 833px) 100vw, 833px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Par exemple:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Conformit\u00e9 obligatoire<\/b> <span style=\"font-weight: 400;\">: CE certification is the &#8220;passport&#8221; to enter the EU market, and the core of CE certification is to comply with relevant EN standards. Taking the Machinery Directive (2006\/42\/EC) as an example, companies must meet<\/span> <b>EN ISO 12100<\/b> <span style=\"font-weight: 400;\">(Principes g\u00e9n\u00e9raux de s\u00e9curit\u00e9 des machines) avant de pouvoir apposer le marquage CE sur leurs produits.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Normes recommand\u00e9es<\/b> <span style=\"font-weight: 400;\">Les normes EN non mentionn\u00e9es dans les directives (telles que les documents d&#039;inspection des mat\u00e9riaux EN 10204) ne sont pas obligatoires, mais sont g\u00e9n\u00e9ralement consid\u00e9r\u00e9es comme des bonnes pratiques par l&#039;industrie. Leur respect peut am\u00e9liorer consid\u00e9rablement la confiance au sein de la cha\u00eene d&#039;approvisionnement et r\u00e9duire les risques de litiges commerciaux.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Pour les \u00c9tats membres, les normes EN sont prioritaires. Par exemple, lorsqu&#039;une norme nationale allemande (DIN) est convertie en norme EN, la norme DIN d&#039;origine est abrog\u00e9e, ce qui garantit une grande uniformit\u00e9 des sp\u00e9cifications techniques europ\u00e9ennes.<\/span><\/p>\n<h1><span style=\"font-weight: 400;\">Aper\u00e7u des normes EN pour les noyaux de soupapes<\/span><\/h1>\n<table>\n<tbody>\n<tr>\n<td style=\"text-align: center;\"><b>Num\u00e9ro standard<\/b><\/td>\n<td style=\"text-align: center;\"><b>Exigences de base<\/b><\/td>\n<td style=\"text-align: center;\"><b>Sc\u00e9narios d&#039;application typiques<\/b><\/td>\n<td style=\"text-align: center;\"><b>Param\u00e8tres cl\u00e9s\/Diff\u00e9rences<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">EN 593<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Niveau d&#039;\u00e9tanch\u00e9it\u00e9 de la vanne papillon, calcul du couple, essai de dur\u00e9e de vie<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Contr\u00f4le des proc\u00e9d\u00e9s chimiques, syst\u00e8me de traitement de l&#039;eau<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Taux de fuite L1 \u2264 0,1% \u00d7 DN<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">EN 12266-1<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Classification des essais de pression du corps et des joints de la vanne<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">soupape de s\u00e9curit\u00e9 de la plateforme p\u00e9troli\u00e8re et de la centrale nucl\u00e9aire<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Grade A : Pression de 1,5\u00d7PN pendant 2 minutes<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">EN 12516<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">m\u00e9thode de calcul et de v\u00e9rification de l&#039;\u00e9paisseur de la paroi du corps de vanne<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Conception de vannes \u00e0 vapeur haute temp\u00e9rature et haute pression<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Erreur de calcul de la formule \u2264 \u00b13%<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">EN 1984<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Limites de la composition chimique et des propri\u00e9t\u00e9s m\u00e9caniques des mat\u00e9riaux m\u00e9talliques<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">S\u00e9lection des mat\u00e9riaux des vannes pour milieux acides, certification de l&#039;eau potable<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">La teneur en chrome de l&#039;acier inoxydable 316L doit \u00eatre \u2265 16,51 TP3T<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">EN 15634<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Exigences de t\u00e9nacit\u00e9 des mat\u00e9riaux et sp\u00e9cifications d&#039;assemblage pour les conditions de travail \u00e0 basse temp\u00e9rature<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Stockage et transport de GNL, vanne de distribution d&#039;azote liquide<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">-196\u2103 \u00c9nergie d&#039;impact \u226527J<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">EN 1092-1<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Dimensions de la bride, pr\u00e9cision de la surface d&#039;\u00e9tanch\u00e9it\u00e9, tol\u00e9rance de positionnement des trous de boulons<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Conception des raccordements de pipelines pour les projets de l&#039;UE<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">12% bride plus \u00e9paisse que la norme am\u00e9ricaine<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">EN 15714-3<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Normalisation du protocole d&#039;interface de donn\u00e9es et des fonctions de diagnostic des vannes intelligentes<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Usine num\u00e9rique, syst\u00e8me de surveillance \u00e0 distance IoT<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Prend en charge la communication OPC UA (EN 62541).<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><b>Pour plus de normes, veuillez consulter notre guide d&#039;interpr\u00e9tation d\u00e9taill\u00e9\u00a0:<\/b><a href=\"\/en-valve-standards\/\"><strong>\u300aAnalyse panoramique des normes EN relatives aux vannes\u00a0: Syst\u00e8mes techniques \u00e0 conna\u00eetre pour acc\u00e9der au march\u00e9 de l\u2019UE\u300b<\/strong><\/a><\/p>\n<h1><span style=\"font-weight: 400;\">EN standard clauses that global valve buyers pay most attention to: &#8220;Technical codes&#8221; that must be checked in supply chain audits\u200b\u200b<\/span><\/h1>\n<p><span style=\"font-weight: 400;\">In international valve procurement, the purchaser&#8217;s engineering team often holds an &#8220;EN standard verification list&#8221; and these terms directly determine whether a supplier can be included in the shortlist.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19459\" src=\"https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/1dbc8957b82e53744a292ace4f962b5-scaled.png\" alt=\"Normes EN pour les vannes\" width=\"2560\" height=\"1440\" srcset=\"https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/1dbc8957b82e53744a292ace4f962b5-scaled.png 2560w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/1dbc8957b82e53744a292ace4f962b5-768x432.png 768w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/1dbc8957b82e53744a292ace4f962b5-1536x864.png 1536w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/1dbc8957b82e53744a292ace4f962b5-2048x1152.png 2048w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/p>\n<h3>Les 7 clauses cl\u00e9s constituent les barri\u00e8res concurrentielles que les fabricants doivent prioriser\u00a0:<\/h3>\n<ol>\n<li><span style=\"font-weight: 400;\"> EN 12266-1 \u00a76.2\u00a0: Niveau d\u2019essai de pression (Classe A\/Classe B)<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Pourquoi est-il important d&#039;y pr\u00eater attention\u00a0:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Secteur acheteur\u00a0: Les projets p\u00e9trochimiques et nucl\u00e9aires n\u00e9cessitent des essais de classe A.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Param\u00e8tres cl\u00e9s\u00a0:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Grade A : 1,5 \u00d7 PN (pression nominale) pendant 2 minutes<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Grade B\u00a0: 1,1\u00d7PN, maintenir la pression pendant 60 secondes<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Focus sur les avis des acheteurs\u00a0:<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Exiger des fournisseurs qu&#039;ils fournissent des vid\u00e9os de test horodat\u00e9es (afin d&#039;emp\u00eacher la falsification de la pression de cr\u00eate instantan\u00e9e).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">V\u00e9rifier le certificat d&#039;\u00e9talonnage du manom\u00e8tre pour une pr\u00e9cision de classe 0,6 selon la norme EN 837-1<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">2. EN 593 Tableau 4 : Classification du taux de fuite admissible des vannes papillon<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Points sensibles des acheteurs\u00a0:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">La diff\u00e9rence de prix entre L1 (aucune fuite visible) et L4 (permettant la pr\u00e9sence de traces de bulles) est de 35%.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les projets de traitement de l&#039;eau n\u00e9cessitent souvent un niveau L2 (\u22640,1\u00d7DN litres\/minute)<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Risques cach\u00e9s\u00a0:<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Certains fournisseurs ont r\u00e9ussi le test \u00e0 temp\u00e9rature ambiante, mais n&#039;ont pas effectu\u00e9 de nouveau test d&#039;\u00e9tanch\u00e9it\u00e9 \u00e0 chaud \u00e0 50 \u00b0C conform\u00e9ment \u00e0 la norme EN 593 \u00a78.3<\/span><\/li>\n<\/ul>\n<p><b>3. Formule EN 12516-3 : calcul de l&#039;\u00e9paisseur minimale de la paroi du corps de vanne<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Objet du diff\u00e9rend :<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Les acheteurs se demandent souvent si l&#039;\u00e9paisseur de paroi autoris\u00e9e n&#039;est pas trop importante (soup\u00e7onnant que le prix du mod\u00e8le soit excessif).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">L&#039;inspection des usines de l&#039;UE examinera les param\u00e8tres de calcul initiaux (tels que la valeur de contrainte admissible du mat\u00e9riau).<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Conseils pour l&#039;inspection en usine\u00a0:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Exiger des fournisseurs qu&#039;ils d\u00e9montrent sur site le fonctionnement du logiciel de calcul EN 12516 (afin d&#039;\u00e9viter l&#039;utilisation de versions obsol\u00e8tes).<\/span><\/li>\n<\/ul>\n<p><b>4. EN 1984 \u00a76.2.3\u00a0: Limites de m\u00e9taux lourds pour les vannes d\u2019eau potable<\/b><\/p>\n<p><b>Indicateurs concrets\u00a0:<\/b><\/p>\n<ul>\n<li aria-level=\"1\"><b>Teneur en plomb \u2264 0,25% (applicable \u00e0 la fonte ductile EN-GJS-400-18-LT)<\/b><\/li>\n<\/ul>\n<ul>\n<li aria-level=\"1\"><b>Lib\u00e9ration de nickel \u2264 0,1 mg\/dm\u00b2 (m\u00e9thode d&#039;essai EN 15664-1)<\/b><\/li>\n<\/ul>\n<p><b>Zone aveugle de d\u00e9tection\u00a0:<\/b><\/p>\n<ul>\n<li aria-level=\"1\"><b>Il est n\u00e9cessaire d&#039;envoyer le mat\u00e9riau \u00e0 un laboratoire tiers (tel que SGS) pour v\u00e9rifier l&#039;authenticit\u00e9 du certificat du mat\u00e9riau afin d&#039;emp\u00eacher le fournisseur de falsifier le rapport EN 10204.<\/b><\/li>\n<\/ul>\n<p><b>5. EN 15634 \u00a77.3\u00a0: Exigences \u00e9nerg\u00e9tiques \u00e0 basse temp\u00e9rature<\/b><\/p>\n<p><b>Seuil de conditions de travail extr\u00eames :<\/b><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>temp\u00e9rature<\/b><\/td>\n<td><b>Mat\u00e9riel<\/b><\/td>\n<td><b>Exigences en mati\u00e8re d&#039;\u00e9nergie d&#039;impact (Charpy V-notch)<\/b><\/td>\n<\/tr>\n<tr>\n<td><b>-196\u2103<\/b><\/td>\n<td><b>X8Ni9<\/b><\/td>\n<td><b>\u226527J<\/b><\/td>\n<\/tr>\n<tr>\n<td><b>-50\u2103<\/b><\/td>\n<td><b>Acier inoxydable 316L<\/b><\/td>\n<td><b>\u226534J<\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><b>Pi\u00e8ge \u00e0 l&#039;achat\u00a0: Certains fournisseurs utilisent un refroidissement rapide \u00e0 l&#039;azote liquide au lieu d&#039;un environnement continu \u00e0 basse temp\u00e9rature, ce qui entra\u00eene une distorsion des donn\u00e9es de t\u00e9nacit\u00e9 des mat\u00e9riaux.<\/b><\/p>\n<p><b>6. EN 1092-1 Tableau 9\u00a0: Rugosit\u00e9 de la surface d\u2019\u00e9tanch\u00e9it\u00e9 de la bride<\/b><\/p>\n<p><b>Points de conflit dans les cha\u00eenes d&#039;approvisionnement transfrontali\u00e8res\u00a0:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">La norme EN exige Ra \u2264 3,2 \u03bcm, et la norme am\u00e9ricaine ASME B16.5 autorise Ra \u2264 6,3 \u03bcm.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Le m\u00e9lange de brides peut entra\u00eener une d\u00e9faillance des joints (ph\u00e9nom\u00e8ne courant dans les projets d&#039;ing\u00e9nierie, d&#039;approvisionnement et de construction).<\/span><\/li>\n<\/ul>\n<p><b>Principaux points du contrat d&#039;achat\u00a0:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It must be stated in the technical appendix that &#8220;the flange machining accuracy is in accordance with EN 1092-1, and no equivalent alternative standards are accepted&#8221;<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">7. EN 10204 3.1\/3.2 : Niveaux de tra\u00e7abilit\u00e9 des mat\u00e9riaux<\/span><\/p>\n<p><b>Diff\u00e9rences entre les certificats\u00a0:<\/b><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Type de certificat<\/b><\/td>\n<td><b>Plage de donn\u00e9es<\/b><\/td>\n<td><b>Acceptation de l&#039;acheteur<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">3.1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Composition chimique et propri\u00e9t\u00e9s m\u00e9caniques d&#039;un lot unique<\/span><\/td>\n<td><span style=\"font-weight: 400;\">G\u00e9n\u00e9ralit\u00e9s sur les projets de g\u00e9nie civil<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">3.2<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Rapport de r\u00e9inspection par un tiers<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Exigences obligatoires pour les projets nucl\u00e9aires et militaires<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><b>Crit\u00e8re d&#039;audit\u00a0: v\u00e9rifiez le num\u00e9ro de version de la norme EN figurant sur le certificat (par exemple, la norme EN 10204:2022 a remplac\u00e9 la version 2013).<\/b><\/p>\n<h3><b>3 motivations cach\u00e9es incitant les acheteurs \u00e0 examiner les normes EN<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u200b\u200b<\/span><b>Transfert de risques<\/b><span style=\"font-weight: 400;\">: D\u00e9finir clairement les limites de responsabilit\u00e9 par le biais des clauses EN (par exemple, si la vanne \u00e9clate apr\u00e8s avoir sp\u00e9cifi\u00e9 le niveau EN 12266-A, le fabricant sera enti\u00e8rement responsable).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Pr\u00e9vision des co\u00fbts<\/b><span style=\"font-weight: 400;\">: Comparer les param\u00e8tres techniques des diff\u00e9rents niveaux EN pour calculer avec pr\u00e9cision le co\u00fbt du cycle de vie (par exemple, une vanne papillon L1 peut r\u00e9duire les co\u00fbts de maintenance de 25%).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Audit de conformit\u00e9<\/b><span style=\"font-weight: 400;\">: Meet the &#8220;supply chain standardization rate&#8221; indicator in the EU ESG report (suppliers using EN standards can add 10-15 points)<\/span><\/li>\n<\/ul>\n<h3><b>3 principaux angles morts lors des audits de normes EN que les acheteurs ignorent souvent<\/b><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19464\" src=\"https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/8a119f8d7b3461ad056b9d5d91ff358-scaled.png\" alt=\"Normes EN pour les vannes\" width=\"2560\" height=\"1440\" srcset=\"https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/8a119f8d7b3461ad056b9d5d91ff358-scaled.png 2560w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/8a119f8d7b3461ad056b9d5d91ff358-768x432.png 768w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/8a119f8d7b3461ad056b9d5d91ff358-1536x864.png 1536w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/8a119f8d7b3461ad056b9d5d91ff358-2048x1152.png 2048w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/p>\n<p><b>1 : Actualit\u00e9 de la version standard<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Cas mortel<\/b><span style=\"font-weight: 400;\">Un projet a \u00e9t\u00e9 command\u00e9 pour modifier l&#039;ensemble du dispositif car il utilisait la conception de la version EN 593:2012 (qui a \u00e9t\u00e9 abrog\u00e9e).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u200b\u200b<\/span><b>Contre-mesures<\/b><span style=\"font-weight: 400;\">\u200b\u200b:<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Consultez le site web officiel du CEN pour v\u00e9rifier la validit\u00e9 de la norme (par exemple, la version actuelle de la norme EN 12266-1 est la version 2022).<\/span><\/li>\n<\/ul>\n<p><b>2 : Termes sp\u00e9cifiques \u00e0 la r\u00e9gion<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Exigences particuli\u00e8res pour les projets allemands<\/b><span style=\"font-weight: 400;\">:<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Les normes DIN EN ajoutent souvent des clauses localis\u00e9es (par exemple, la norme DIN EN 1092-1 exige que les chanfreins des trous de boulons de bride soient de 0,3 mm).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Contre-mesures<\/b><span style=\"font-weight: 400;\">\u200b\u200b:<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Pr\u00e9cisez le pays du projet lors de la phase de demande de renseignements (par exemple, l&#039;Allemagne doit respecter les clauses suppl\u00e9mentaires du DIN).<\/span><\/li>\n<\/ul>\n<p><b>3 : Int\u00e9grit\u00e9 r\u00e9f\u00e9rentielle standard<\/b><\/p>\n<ul>\n<li aria-level=\"1\"><b>Questions typiques\u00a0:<\/b><b><br \/>\n<\/b><b>Le fournisseur d\u00e9clare uniquement \u00eatre conforme \u00e0 la norme EN 12266, mais ne pr\u00e9cise pas la partie concern\u00e9e (par exemple, la norme d&#039;essai de la partie 1\/les r\u00e8gles d&#039;acceptation de la partie 2).<\/b><\/li>\n<\/ul>\n<ul>\n<li aria-level=\"1\"><b>Exemple de sp\u00e9cification de contrat\u00a0:<\/b><b><br \/>\n<\/b><b>\u201c Les vannes doivent satisfaire aux crit\u00e8res d\u2019essai de classe A de la norme EN 12266-1:2022 et aux crit\u00e8res d\u2019acceptation de la norme EN 12266-2:2018. \u201d<\/b><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">Bo\u00eete \u00e0 outils de v\u00e9rification des normes EN pour les acheteurs<\/span><\/h3>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Manuel de r\u00e9f\u00e9rence rapide standard EN<\/b><span style=\"font-weight: 400;\">:<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Organiser les clauses essentielles des normes EN relatives aux vannes (telles que le tableau des taux de fuite EN 593, la formule EN 12516).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Formulaire d&#039;auto-inspection du fournisseur<\/b><span style=\"font-weight: 400;\">:<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Exiger des fournisseurs qu&#039;ils v\u00e9rifient la conformit\u00e9 aux normes EN article par article (avec le num\u00e9ro de page des donn\u00e9es de test originales joint).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Plan de r\u00e8glement des diff\u00e9rends<\/b><span style=\"font-weight: 400;\">:<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">It is stipulated in the contract: &#8220;The right to interpret EN standards shall be based on the original English version, excluding conflicts with local regulations&#8221;<\/span><\/li>\n<\/ol>\n<h1><span style=\"font-weight: 400;\">Why are EN standards more stringent? Material and safety factor &#8220;EU threshold&#8221;\u200b\u200b<\/span><\/h1>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19460\" src=\"https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/29f2db20dd57c9223735b8c11c1b72a-scaled.png\" alt=\"Valve EN\" width=\"2560\" height=\"1440\" srcset=\"https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/29f2db20dd57c9223735b8c11c1b72a-scaled.png 2560w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/29f2db20dd57c9223735b8c11c1b72a-768x432.png 768w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/29f2db20dd57c9223735b8c11c1b72a-1536x864.png 1536w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/29f2db20dd57c9223735b8c11c1b72a-2048x1152.png 2048w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Comparativement aux syst\u00e8mes API et ISO, les normes EN ont \u00e9tabli des barri\u00e8res techniques de niveau sup\u00e9rieur en mati\u00e8re de sp\u00e9cifications de s\u00e9lection des mat\u00e9riaux et de conception de la redondance de s\u00e9curit\u00e9, ce qui se refl\u00e8te directement dans\u00a0:<\/span><\/p>\n<h3><b>\u200b\u200bThe &#8220;double shackles&#8221; of material performance\u200b\u200b<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Contr\u00f4le pr\u00e9cis de la composition chimique : la norme EN 1984 impose des limites trois fois plus strictes sur les \u00e9l\u00e9ments traces dans les mat\u00e9riaux de vannes moul\u00e9s que la norme API 600 (par exemple, teneur en plomb \u2264 0,25% contre 0,35% autoris\u00e9 par l&#039;API).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Syst\u00e8me de v\u00e9rification des conditions de fonctionnement extr\u00eames : la norme EN 15634 exige que les vannes cryog\u00e9niques r\u00e9ussissent un test d&#039;impact continu \u00e0 -196 \u00b0C, tandis que la norme ISO 28902 exige seulement une v\u00e9rification environnementale \u00e0 -50 \u00b0C.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">R\u00e9sistance \u00e0 la corrosion tout au long du cycle de vie : la norme EN 12569 stipule que les vannes pour milieux acides doivent fournir des donn\u00e9es d&#039;essais de corrosion acc\u00e9l\u00e9r\u00e9e sur 10 ans, d\u00e9passant largement la norme de r\u00e9f\u00e9rence de 5 ans de l&#039;ASME B16.34.<\/span><\/li>\n<\/ul>\n<h3><b>\u200b\u200b &#8220;Mathematical Crushing&#8221; of Safety Factor\u200b\u200b<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Diff\u00e9rences dans les formules de calcul de l&#039;\u00e9paisseur des parois\u00a0: la norme EN 12516 utilise la m\u00e9thode de superposition des contraintes dynamiques, qui prend en compte une marge de fatigue plus importante que la formule statique de la norme API 600.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Conception redondante pour la pression d&#039;\u00e9clatement\u00a0: la norme EN\u00a012266-1 exige que les vannes de classe A r\u00e9sistent \u00e0 1,5\u00a0fois la pression nominale, tandis que la norme API\u00a0598 ne teste que 1,1\u00a0fois cette pression.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">M\u00e9canisme de pr\u00e9vention des d\u00e9faillances d&#039;\u00e9tanch\u00e9it\u00e9 : la classification du taux de fuite EN 593 fixe la norme L1 \u00e0 0 fuite, ce qui est plus strict que le niveau AA de la norme ISO 5208 (autorisant une fuite de 0,001%).<\/span><\/li>\n<\/ul>\n<h1><span style=\"font-weight: 400;\">La relation symbiotique entre la certification CE et les normes EN\u00a0: premi\u00e8re \u00e9tape de la connaissance de l\u2019exportation des vannes<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19456\" src=\"https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/29ce3e85278981ca0d59147c08e2ccd.jpg\" alt=\"Certification CE\" width=\"1312\" height=\"616\" srcset=\"https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/29ce3e85278981ca0d59147c08e2ccd.jpg 1312w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/29ce3e85278981ca0d59147c08e2ccd-768x361.jpg 768w\" sizes=\"auto, (max-width: 1312px) 100vw, 1312px\" \/><\/span><\/h1>\n<p><span style=\"font-weight: 400;\">Simply put, CE certification is the legal threshold, and EN standards are the technical answers. When EU regulations require valves to be &#8220;safe and reliable&#8221;, EN standards translate it into specific numbers &#8211; such as bolt strength, leakage rate, material composition &#8211; and CE certification is to check whether these numbers meet the standards.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Points cl\u00e9s :<\/span><\/p>\n<ul>\n<li aria-level=\"1\"><b>Contraignant juridiquement :<\/b><b><br \/>\n<\/b><b>Le cadre juridique de la certification CE (tel que la directive PED) exige explicitement l\u2019utilisation des normes EN pour la v\u00e9rification des produits, ce qui signifie\u00a0:<\/b><\/li>\n<\/ul>\n<ul>\n<li aria-level=\"3\"><b>Les produits con\u00e7us selon des normes non-EN (telles que ASME\/API) ne peuvent pas obtenir la certification CE, m\u00eame s&#039;ils pr\u00e9sentent de meilleures performances.<\/b><\/li>\n<\/ul>\n<ul>\n<li aria-level=\"3\"><b>Les douanes de l&#039;UE peuvent saisir directement les produits certifi\u00e9s CE qui ne r\u00e9pondent pas aux normes EN.<\/b><\/li>\n<\/ul>\n<ul>\n<li aria-level=\"1\"><b>Mise en \u0153uvre technique :<\/b><b><br \/>\n<\/b><b>Les normes EN offrent des solutions cl\u00e9s en main pour la certification CE\u00a0:<\/b><\/li>\n<\/ul>\n<ul>\n<li aria-level=\"3\"><b>La norme EN 12516 r\u00e9sout les probl\u00e8mes de calcul de r\u00e9sistance<\/b><\/li>\n<\/ul>\n<ul>\n<li aria-level=\"3\"><b>M\u00e9thodes d&#039;essai sp\u00e9cifi\u00e9es EN 12266<\/b><\/li>\n<\/ul>\n<ul>\n<li aria-level=\"3\"><b>La norme EN 10204 garantit la tra\u00e7abilit\u00e9 des mat\u00e9riaux<\/b><\/li>\n<\/ul>\n<ul>\n<li aria-level=\"1\"><b>Pi\u00e8ge de la ponctualit\u00e9 :<\/b><b><br \/>\n<\/b><b>Les normes EN sont mises \u00e0 jour en moyenne tous les 5 ans, et les anciens certificats CE peuvent devenir invalides (par exemple, apr\u00e8s le remplacement de la version 2012 par la norme EN 593:2023 \u00e0 partir de 2024, le certificat original sera imm\u00e9diatement invalid\u00e9).<\/b><\/li>\n<\/ul>\n<p><b>Pour en savoir plus, consultez le \u300aGuide des normes de certification CE\u300b<\/b><\/p>\n<h1><span style=\"font-weight: 400;\">La diff\u00e9rence essentielle entre les normes EN et les normes ISO et API<\/span><\/h1>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19466\" src=\"https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/895cbc763357a80b550343eee5232df.jpg\" alt=\"EN ou ISO ou API\" width=\"2048\" height=\"358\" srcset=\"https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/895cbc763357a80b550343eee5232df.jpg 2048w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/895cbc763357a80b550343eee5232df-768x134.jpg 768w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/895cbc763357a80b550343eee5232df-1536x269.jpg 1536w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Syst\u00e8me standard<\/b><\/td>\n<td><b>Champ d&#039;application<\/b><\/td>\n<td style=\"text-align: center;\"><b>Effet juridique<\/b><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Cas de diff\u00e9rence typiques<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">FR<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">pays de l&#039;UE et de l&#039;AELE<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Obligatoire<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">L&#039;\u00e9paisseur moyenne des brides conformes \u00e0 la norme EN 1092 est de 12% sup\u00e9rieure \u00e0 celle des brides conformes \u00e0 la norme ASME B16.5.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">ISO<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Applicable \u00e0 l&#039;\u00e9chelle mondiale<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Recommand\u00e9 (sauf mention contraire dans la section EN)<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">EN ISO 10497 = ISO 10497 (\u00e9quivalent \u00e0 l&#039;essai de r\u00e9sistance au feu)<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">API<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Industrie p\u00e9troli\u00e8re et gazi\u00e8re<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Pratiques de l&#039;industrie<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">La m\u00e9thode de calcul de l&#039;\u00e9paisseur de paroi des vannes \u00e0 guillotine API 600 (5%-8%) diff\u00e8re de la norme EN 12516.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Remarque : Lors de l&#039;exportation de vannes vers l&#039;UE, m\u00eame si les normes API ou ISO sont respect\u00e9es, les normes EN doivent \u00eatre mises en \u0153uvre en premier lieu.<\/span><\/p>\n<h3><b>Normes EN vs API\/ISO\u00a0: Comment les diff\u00e9rences de logique de conception influencent-elles les d\u00e9cisions d\u2019achat\u00a0?<\/b><\/h3>\n<table>\n<tbody>\n<tr>\n<td><b>Dimensions comparatives (march\u00e9 europ\u00e9en)<\/b><\/td>\n<td style=\"text-align: center;\"><b>logique de conception standard EN<\/b><\/td>\n<td style=\"text-align: center;\"><b>logique de conception API\/ISO<\/b><\/td>\n<td style=\"text-align: center;\"><b>Influence des d\u00e9cisions d&#039;achat<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">s\u00e9lection des mat\u00e9riaux<\/span><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">Liste des mat\u00e9riaux nationaux obligatoires de l&#039;UE (par exemple, l&#039;acier inoxydable EN 10088)<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Permet une substitution globale par \u00e9quivalence de mat\u00e9riaux<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">L&#039;utilisation de mat\u00e9riaux conformes aux normes am\u00e9ricaines n\u00e9cessite une nouvelle certification EN.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Facteur de s\u00e9curit\u00e9<\/span><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">Ajuster dynamiquement la redondance en fonction de la base de donn\u00e9es europ\u00e9enne sur les accidents industriels (par exemple, la version 2023 de la norme EN 12516 augmente le facteur de s\u00e9curit\u00e9 des vannes haute temp\u00e9rature de 8%).<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Coefficients fixes fond\u00e9s sur l&#039;exp\u00e9rience historique<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">La version EN du m\u00eame mod\u00e8le de vanne est 10-20% plus lourde que la version API.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">cycle de v\u00e9rification<\/span><\/td>\n<td style=\"text-align: left;\"><span style=\"font-weight: 400;\">Exiger que des laboratoires tiers effectuent des r\u00e9inspections annuelles (la norme EN 10204:2022 ajoute le stockage des preuves par blockchain).<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Principalement l&#039;auto-inspection par les entreprises<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Le cycle d&#039;approvisionnement est prolong\u00e9 de 15 \u00e0 30 jours.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">\u200b\u200bNote to buyers\u200b\u200b: In EU EPC projects, even if the API valve performance meets the standards, if it does not meet the &#8220;preventive design concept&#8221; of the EN standard (such as not calculating the carbon footprint according to EN 17033), it will still be judged as a technical deviation item, resulting in the bid being rejected.<\/span><\/p>\n<h3><b>Synergies et diff\u00e9rences entre les normes EN et ISO<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Many EN standards are directly equivalent to international standards (ISO), and are presented in a dual format of **&#8221;EN ISO**. For example:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>EN ISO 9001<\/b> <span style=\"font-weight: 400;\">Un cadre mondial pour les syst\u00e8mes de gestion de la qualit\u00e9. Les entreprises qui obtiennent cette certification peuvent non seulement satisfaire aux exigences CE de l&#039;UE, mais aussi acc\u00e9der au march\u00e9 international.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>EN ISO 5208<\/b> <span style=\"font-weight: 400;\">: La r\u00e9f\u00e9rence en mati\u00e8re de tests de taux de fuite des vannes, utilis\u00e9e par les entreprises chimiques et \u00e9nerg\u00e9tiques du monde entier pour \u00e9valuer les performances d&#039;\u00e9tanch\u00e9it\u00e9 de leurs produits.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Cependant, les normes EN ne sont pas une copie conforme des normes ISO, et leurs diff\u00e9rences se refl\u00e8tent dans\u00a0:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Suppl\u00e9ment localis\u00e9<\/b> <span style=\"font-weight: 400;\">Les normes EN peuvent ajouter des exigences techniques sp\u00e9cifiques \u00e0 l&#039;Europe. Par exemple,<\/span> <b>EN 1092-1<\/b> <span style=\"font-weight: 400;\">(norme de bride) affine les exigences de performance des mat\u00e9riaux couramment utilis\u00e9s dans l&#039;UE (tels que l&#039;acier forg\u00e9 P265GH) sur la base de la norme ISO 7005.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Diff\u00e9rences dans les parcours de conformit\u00e9<\/b> <span style=\"font-weight: 400;\">Dans certains domaines (comme les dispositifs m\u00e9dicaux), les normes EN exigent des tests effectu\u00e9s par des laboratoires d\u00e9sign\u00e9s par l&#039;UE, tandis que les normes ISO privil\u00e9gient une applicabilit\u00e9 mondiale.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Learn more about &#8220;Must-read for purchasing<a href=\"\/valve-standards-iso-api-en\/\">\u300a Les trois principales normes de vannes\u00a0: ISO, API, EN \u2014 Normes de vannes que les acheteurs internationaux doivent conna\u00eetre\u300b<\/a><\/span><\/p>\n<h1><span style=\"font-weight: 400;\">Pourquoi les normes EN sont-elles importantes\u00a0?<\/span><\/h1>\n<p><span style=\"font-weight: 400;\">Que vous soyez fabricant de vannes, entrepreneur du b\u00e2timent ou fournisseur de dispositifs m\u00e9dicaux, comprendre la valeur fondamentale des normes EN peut faire toute la diff\u00e9rence pour votre entreprise sur des march\u00e9s comme l&#039;Europe o\u00f9 la conformit\u00e9 aux normes EN est obligatoire\u00a0:<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>acc\u00e8s au march\u00e9<\/b> <span style=\"font-weight: 400;\">La certification CE repose sur les normes EN, et le non-respect de ces normes entra\u00eenera directement le rejet du produit par le march\u00e9 de l&#039;UE.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>comp\u00e9titivit\u00e9 accrue<\/b> <span style=\"font-weight: 400;\">Les entreprises qui respectent les normes EN sont plus susceptibles de gagner la confiance des clients internationaux, notamment dans les secteurs aux exigences de qualit\u00e9 strictes (comme le nucl\u00e9aire et le p\u00e9trole et le gaz).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>optimisation des co\u00fbts<\/b> <span style=\"font-weight: 400;\">Gr\u00e2ce \u00e0 la collaboration des normes EN et ISO, les entreprises peuvent r\u00e9duire les co\u00fbts li\u00e9s aux tests et certifications r\u00e9p\u00e9titifs et optimiser l&#039;allocation de leurs ressources.<\/span><\/li>\n<\/ol>\n<p><b>En tant que fabricant de vannes impliqu\u00e9 depuis 20 ans dans les normes EN, JH veille \u00e0 ce que chaque vanne, chaque millim\u00e8tre d&#039;\u00e9paisseur de paroi, chaque newton de couple et chaque certificat de mat\u00e9riau r\u00e9ponde aux exigences rigoureuses de ces normes. Nous sommes pleinement conscients que lorsqu&#039;un client choisit une entreprise ma\u00eetrisant les normes EN, il acquiert non seulement des produits, mais aussi un ensemble de solutions de contr\u00f4le des risques quantifiables, garantes de s\u00e9curit\u00e9. Du test de niveau A de la norme EN 12266 au suivi de l&#039;empreinte carbone de la norme EN 17033, ces cha\u00eenes de confiance num\u00e9riques deviennent un gage de fiabilit\u00e9 pour les achats industriels mondiaux.<\/b><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19448\" src=\"https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/822f6f573772360da7c11a538201fb9-scaled.jpg\" alt=\"Fabricant de vannes JH\" width=\"2560\" height=\"1920\" srcset=\"https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/822f6f573772360da7c11a538201fb9-scaled.jpg 2560w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/822f6f573772360da7c11a538201fb9-768x576.jpg 768w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/822f6f573772360da7c11a538201fb9-1536x1152.jpg 1536w, https:\/\/janhenvalve.com\/wp-content\/uploads\/2025\/04\/822f6f573772360da7c11a538201fb9-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>What is EN standard, technical code of EN valve standard EN standards, full name European Norm, are unified technical specifications formulated by authoritative organizations such 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[35],"tags":[],"class_list":["post-19364","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-valve-international-standards"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Comprehensive Analysis of EN Valve Standards: A Core Guide to European Technical Regulations -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/janhenvalve.com\/fr_fr\/en-valve\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comprehensive 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