{"id":1998,"date":"2026-04-19T12:04:00","date_gmt":"2026-04-19T04:04:00","guid":{"rendered":"https:\/\/www.pansvalve.com\/?p=1998"},"modified":"2026-04-20T00:05:09","modified_gmt":"2026-04-19T16:05:09","slug":"where-should-a-swing-check-valve-be-installed","status":"publish","type":"post","link":"https:\/\/www.pansvalve.com\/fr\/blog\/check-valve\/where-should-a-swing-check-valve-be-installed\/","title":{"rendered":"O\u00f9 doit \u00eatre install\u00e9 un clapet anti-retour \u00e0 battant ?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table des mati\u00e8res<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Basculer la table des mati\u00e8res\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Basculer<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.pansvalve.com\/fr\/blog\/check-valve\/where-should-a-swing-check-valve-be-installed\/#What_is_a_swing_check_valve\" >Qu&#039;est-ce qu&#039;un clapet anti-retour \u00e0 battant ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.pansvalve.com\/fr\/blog\/check-valve\/where-should-a-swing-check-valve-be-installed\/#Can_check_valves_be_installed_vertically\" >Les clapets anti-retour peuvent-ils \u00eatre install\u00e9s verticalement ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.pansvalve.com\/fr\/blog\/check-valve\/where-should-a-swing-check-valve-be-installed\/#Swing_Check_Valve_Installation_Tips\" >Conseils d&#039;installation du clapet anti-retour \u00e0 battant<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.pansvalve.com\/fr\/blog\/check-valve\/where-should-a-swing-check-valve-be-installed\/#Where_NOT_to_Install_a_Swing_Check_Valve\" >O\u00f9 NE PAS installer un clapet anti-retour \u00e0 battant<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.pansvalve.com\/fr\/blog\/check-valve\/where-should-a-swing-check-valve-be-installed\/#Frequently_Asked_Questions_Swing_Check_Valve_Installation\" >Questions fr\u00e9quentes\u00a0: Installation d\u2019un clapet anti-retour \u00e0 battant<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>UN <a href=\"https:\/\/www.pansvalve.com\/fr\/products\/cast-swing-check-valve\/\">clapet anti-retour \u00e0 battant<\/a> doit \u00eatre install\u00e9 dans une canalisation horizontale avec l&#039;axe de charni\u00e8re positionn\u00e9 en haut pour des performances optimales.&nbsp;<\/p>\n\n\n\n<p>Cette orientation permet \u00e0 la gravit\u00e9 d&#039;aider \u00e0 la fermeture de la vanne lorsque le d\u00e9bit s&#039;inverse, emp\u00eache le reflux et r\u00e9duit le risque de coup de b\u00e9lier.&nbsp;<\/p>\n\n\n\n<p>Il garantit que la vanne fonctionne en douceur et assure une \u00e9tanch\u00e9it\u00e9 efficace en cas de besoin.<\/p>\n\n\n\n<p>Pour en savoir plus sur les conseils d\u2019installation des clapets anti-retour \u00e0 battant, continuez \u00e0 lire l\u2019article.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_a_swing_check_valve\"><\/span><strong>Qu&#039;est-ce qu&#039;un clapet anti-retour \u00e0 battant ?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Un clapet anti-retour \u00e0 battant est un type de vanne con\u00e7u pour permettre au fluide de s&#039;\u00e9couler dans une direction tout en emp\u00eachant le reflux.&nbsp;<\/p>\n\n\n\n<p>Il est dot\u00e9 d&#039;un disque articul\u00e9 qui s&#039;ouvre en pivotant avec un flux vers l&#039;avant et se ferme automatiquement lorsque le flux s&#039;inverse, ce qui le rend id\u00e9al pour les applications o\u00f9 la pr\u00e9vention du reflux est essentielle.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Qu&#039;est-ce qu&#039;un coup de b\u00e9lier ?<\/strong><\/h3>\n\n\n\n<p>Le coup de b\u00e9lier est un ph\u00e9nom\u00e8ne dangereux de m\u00e9canique des fluides qui se produit lorsqu&#039;un liquide en mouvement s&#039;arr\u00eate brusquement ou inverse son sens d&#039;\u00e9coulement, cr\u00e9ant une onde de choc de pression puissante dans le r\u00e9seau de canalisations. Lorsqu&#039;un clapet anti-retour se ferme (surtout brutalement), le fluide en mouvement rapide derri\u00e8re le disque est contraint de s&#039;arr\u00eater presque instantan\u00e9ment. Cette d\u00e9c\u00e9l\u00e9ration soudaine comprime le fluide, g\u00e9n\u00e9rant une surpression qui se propage en sens inverse dans les canalisations \u00e0 la vitesse du son, pouvant atteindre des pressions des milliers de fois sup\u00e9rieures \u00e0 la pression de service normale.<\/p>\n\n\n\n<p>Cette surpression peut entra\u00eener la rupture de canalisations, la s\u00e9paration de joints, la d\u00e9faillance d&#039;\u00e9quipements et l&#039;endommagement de vannes. Dans les installations verticales \u00e0 flux descendant, le probl\u00e8me est amplifi\u00e9\u00a0: le disque se referme brutalement sous l&#039;effet de la gravit\u00e9 \u00e0 l&#039;arr\u00eat du flux, emprisonnant une colonne de fluide qui s&#039;\u00e9crase contre la vanne ferm\u00e9e avec une force consid\u00e9rable. <\/p>\n\n\n\n<p>C\u2019est pr\u00e9cis\u00e9ment pourquoi un clapet anti-retour \u00e0 battant correctement install\u00e9 et orient\u00e9 est essentiel. Un clapet anti-retour \u00e0 battant bien orient\u00e9 et dot\u00e9 d\u2019un m\u00e9canisme de fermeture en douceur minimise la force d\u2019impact et r\u00e9duit le risque de coup de b\u00e9lier. Dans les syst\u00e8mes haute pression, les longues canalisations et les arr\u00eats brusques des pompes, une orientation correcte du clapet anti-retour \u00e0 battant est non seulement une bonne pratique, mais une exigence de s\u00e9curit\u00e9 fondamentale.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Can_check_valves_be_installed_vertically\"><\/span><strong>Les clapets anti-retour peuvent-ils \u00eatre install\u00e9s verticalement ?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Oui, les clapets anti-retour, y compris les clapets anti-retour \u00e0 battant, peuvent \u00eatre install\u00e9s verticalement, mais seulement lorsque le flux est dirig\u00e9 vers le haut.\u00a0<\/p>\n\n\n\n<p>L&#039;installation verticale avec un flux descendant n&#039;est pas recommand\u00e9e, car elle peut entra\u00eener le maintien de la vanne ouverte, ce qui contrecarre son objectif et peut entra\u00eener des coups de b\u00e9lier et des dommages \u00e0 la vanne.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Swing_Check_Valve_Installation_Tips\"><\/span><strong>Conseils d&#039;installation du clapet anti-retour \u00e0 battant<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Les clapets anti-retour \u00e0 battant sont des composants essentiels utilis\u00e9s dans les syst\u00e8mes de tuyauterie pour emp\u00eacher le reflux.&nbsp;<\/p>\n\n\n\n<p>Une installation correcte est essentielle pour garantir leur bon fonctionnement et leur long\u00e9vit\u00e9. Voici o\u00f9 et comment les clapets anti-retour \u00e0 battant doivent id\u00e9alement \u00eatre install\u00e9s :<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Installation horizontale<\/strong><\/h3>\n\n\n\n<p>L&#039;orientation la plus recommand\u00e9e pour un clapet anti-retour \u00e0 battant est horizontale.&nbsp;<\/p>\n\n\n\n<p>Dans cette position, l&#039;axe de charni\u00e8re doit \u00eatre orient\u00e9 vers le haut, permettant au disque de la vanne de s&#039;ouvrir avec le d\u00e9bit du fluide et de se fermer lorsque le d\u00e9bit s&#039;arr\u00eate.&nbsp;<\/p>\n\n\n\n<p>Cette configuration optimise les performances en permettant \u00e0 la gravit\u00e9 d&#039;aider \u00e0 fermer la vanne en cas de flux inverse, garantissant ainsi une \u00e9tanch\u00e9it\u00e9 fiable et emp\u00eachant le reflux.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Installation verticale<\/strong><\/h3>\n\n\n\n<p>Les clapets anti-retour \u00e0 battant peuvent \u00e9galement \u00eatre install\u00e9s verticalement, mais uniquement lorsque le flux est dirig\u00e9 vers le haut.&nbsp;<\/p>\n\n\n\n<p>Cette installation verticale convient aux applications o\u00f9 le fluide monte dans le syst\u00e8me de tuyauterie.&nbsp;<\/p>\n\n\n\n<p>Dans cette orientation, le disque de la vanne s&#039;ouvre avec le flux ascendant et se ferme lorsque le flux s&#039;arr\u00eate ou s&#039;inverse, aid\u00e9 par la gravit\u00e9.&nbsp;<\/p>\n\n\n\n<p>Cependant, il n&#039;est pas recommand\u00e9 d&#039;installer des clapets anti-retour \u00e0 battant sur une ligne verticale avec le d\u00e9bit descendant.&nbsp;<\/p>\n\n\n\n<p>Cette orientation pourrait entra\u00eener le maintien du disque de la vanne ouvert, ce qui irait \u00e0 l&#039;encontre de son objectif de pr\u00e9vention du reflux et pourrait entra\u00eener un coup de b\u00e9lier, ce qui peut endommager \u00e0 la fois la vanne et le syst\u00e8me de tuyauterie.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"559\" src=\"https:\/\/www.pansvalve.com\/wp-content\/uploads\/2024\/09\/232dc4b4-3ff1-4417-b8b6-74fd8cfe9851.webp\" alt=\"\" class=\"wp-image-4254\" srcset=\"https:\/\/www.pansvalve.com\/wp-content\/uploads\/2024\/09\/232dc4b4-3ff1-4417-b8b6-74fd8cfe9851.webp 1024w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2024\/09\/232dc4b4-3ff1-4417-b8b6-74fd8cfe9851-300x164.webp 300w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2024\/09\/232dc4b4-3ff1-4417-b8b6-74fd8cfe9851-768x419.webp 768w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2024\/09\/232dc4b4-3ff1-4417-b8b6-74fd8cfe9851-18x10.webp 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u00c9vitez l&#039;installation \u00e0 flux descendant<\/strong><\/h3>\n\n\n\n<p>L&#039;installation de clapets anti-retour \u00e0 battant dans des conduites verticales avec un flux descendant est g\u00e9n\u00e9ralement d\u00e9conseill\u00e9e.&nbsp;<\/p>\n\n\n\n<p>Dans de tels cas, la gravit\u00e9 n&#039;aide pas \u00e0 fermer la vanne ; au contraire, elle peut forcer le disque de la vanne \u00e0 rester partiellement ou compl\u00e8tement ouvert, r\u00e9duisant ainsi l&#039;efficacit\u00e9 de la vanne \u00e0 emp\u00eacher le reflux.&nbsp;<\/p>\n\n\n\n<p>De plus, le disque de la vanne pourrait se fermer brusquement lorsque le d\u00e9bit s&#039;arr\u00eate, provoquant un coup de b\u00e9lier et des dommages potentiels \u00e0 la vanne et \u00e0 la tuyauterie associ\u00e9e.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Tenir compte des exigences en mati\u00e8re d\u2019autorisation<\/strong><\/h3>\n\n\n\n<p>Qu&#039;elle soit install\u00e9e horizontalement ou verticalement (avec flux ascendant), un espace libre ad\u00e9quat autour de la vanne est n\u00e9cessaire pour permettre au disque de pivoter librement sans obstruction.&nbsp;<\/p>\n\n\n\n<p>En r\u00e8gle g\u00e9n\u00e9rale, un espace libre de 1 \u00e0 2 diam\u00e8tres de tuyau autour de la vanne est recommand\u00e9 pour assurer un fonctionnement fluide et \u00e9viter les restrictions de d\u00e9bit.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Where_NOT_to_Install_a_Swing_Check_Valve\"><\/span><strong>O\u00f9 NE PAS installer un clapet anti-retour \u00e0 battant<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Bien que les clapets anti-retour \u00e0 battant soient polyvalents, leurs performances sont m\u00e9diocres dans certaines conditions. Comprendre ces installations inadapt\u00e9es permet de pr\u00e9venir les dysfonctionnements, l&#039;usure pr\u00e9matur\u00e9e et les pannes du syst\u00e8me. \u00c9vitez d&#039;installer un clapet anti-retour \u00e0 battant dans les situations suivantes\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Syst\u00e8mes pr\u00e9sentant des fluctuations de d\u00e9bit fr\u00e9quentes ou rapides<\/strong>: <\/li>\n<\/ul>\n\n\n\n<p>Les applications \u00e0 cycles \u00e9lev\u00e9s impliquant des s\u00e9quences de d\u00e9marrage\/arr\u00eat de pompe, des inversions de flux rapides ou des \u00e9lectrovannes tout ou rien imposent des contraintes m\u00e9caniques importantes \u00e0 l&#039;axe de charni\u00e8re et \u00e0 la surface d&#039;\u00e9tanch\u00e9it\u00e9. Chaque fermeture soumet l&#039;axe de charni\u00e8re \u00e0 des forces d&#039;impact et \u00e0 des moments de flexion\u00a0; les cycles r\u00e9p\u00e9t\u00e9s \u00e0 haute fr\u00e9quence provoquent des fissures de fatigue de l&#039;axe, une d\u00e9formation plastique de l&#039;al\u00e9sage de la charni\u00e8re et une \u00e9rosion progressive du si\u00e8ge. En cas de service prolong\u00e9, le clapet se desserre de fa\u00e7on permanente (permettant le reflux) ou se bloque en position ouverte (supprimant la protection contre le reflux). Pour les applications \u00e0 service cyclique, il est recommand\u00e9 d&#039;utiliser des clapets anti-retour \u00e0 charni\u00e8res renforc\u00e9es et axes tremp\u00e9s, ou mieux encore, des clapets anti-retour \u00e0 piston forg\u00e9 con\u00e7us pour des milliers de cycles. Si un clapet anti-retour \u00e0 battant est la seule option disponible, il convient d&#039;installer un dispositif de suppression des surpressions (amortisseur, accumulateur ou amortisseur de chocs) en aval afin d&#039;amortir l&#039;impact et de r\u00e9duire les contraintes cycliques sur la charni\u00e8re du clapet.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Imm\u00e9diatement en aval des coudes ou des courbes de tuyauterie<\/strong>: <\/li>\n<\/ul>\n\n\n\n<p>Ne jamais installer un clapet anti-retour \u00e0 battant directement apr\u00e8s un coude ou un virage serr\u00e9. Le coude cr\u00e9e un \u00e9coulement turbulent et tourbillonnant, avec une distribution de vitesse in\u00e9gale \u00e0 l&#039;entr\u00e9e du clapet, emp\u00eachant son ouverture en douceur et pouvant entra\u00eener des oscillations ou un blocage partiel en position ouverte. Ces turbulences provoquent \u00e9galement des forces de fermeture asym\u00e9triques, ce qui peut rendre l&#039;\u00e9tanch\u00e9it\u00e9 impr\u00e9visible et engendrer des fuites. Pour un fonctionnement s\u00fbr, pr\u00e9voir une distance d&#039;au moins 5 \u00e0 10 diam\u00e8tres de tuyau droit entre tout coude et l&#039;entr\u00e9e du clapet afin d&#039;\u00e9tablir un \u00e9coulement laminaire et stable. Cet espacement garantit que le fluide arrive au clapet \u00e0 une vitesse uniforme et pr\u00e9visible.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Syst\u00e8mes \u00e0 faible vitesse ou \u00e0 faible d\u00e9bit<\/strong>: <\/li>\n<\/ul>\n\n\n\n<p>Les clapets anti-retour \u00e0 battant n\u00e9cessitent une force d&#039;\u00e9coulement suffisante pour soulever compl\u00e8tement le disque et maintenir son ouverture maximale. Dans les syst\u00e8mes fonctionnant \u00e0 une vitesse inf\u00e9rieure \u00e0 0,6 m\/s (2 pi\/s), le disque peut ne pas s&#039;ouvrir compl\u00e8tement, restant partiellement ferm\u00e9 et restreignant le d\u00e9bit. Cette fermeture partielle augmente la perte de charge, provoque un \u00e9chauffement du syst\u00e8me et, surtout, entra\u00eene des vibrations du disque lors des cycles de fonctionnement. Ces mouvements r\u00e9p\u00e9t\u00e9s acc\u00e9l\u00e8rent l&#039;usure de l&#039;axe de charni\u00e8re et du si\u00e8ge, ce qui peut \u00e0 terme provoquer le desserrage du disque (entra\u00eenant des fuites par reflux) ou son blocage en position ouverte (annulant ainsi toute fonction anti-retour). Les faibles vitesses d&#039;\u00e9coulement sont typiques des syst\u00e8mes aliment\u00e9s par gravit\u00e9, des canalisations de tr\u00e8s grand diam\u00e8tre ou des circuits \u00e0 faible diff\u00e9rentiel de pression. Pour ces applications, il est pr\u00e9f\u00e9rable d&#039;utiliser des clapets anti-retour \u00e0 levage ou \u00e0 piston.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions_Swing_Check_Valve_Installation\"><\/span><strong>Questions fr\u00e9quentes\u00a0: Installation d\u2019un clapet anti-retour \u00e0 battant<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. Un clapet anti-retour \u00e0 battant peut-il \u00eatre install\u00e9 verticalement\u00a0?<\/h3>\n\n\n\n<p>Oui, mais uniquement lorsque le flux est dirig\u00e9 vers le haut \u00e0 travers la vanne. Une installation verticale ascendante est acceptable car la gravit\u00e9 aide le disque \u00e0 se fermer lorsque le flux s&#039;inverse, assurant ainsi une protection fiable contre le refoulement. En revanche, une installation verticale descendante est strictement interdite\u00a0: la gravit\u00e9 maintient le disque ouvert, ce qui provoque un refoulement et un risque important de coup de b\u00e9lier lorsque la vanne se referme brutalement en raison des variations de pression du syst\u00e8me.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. <strong>Dans quel sens s&#039;\u00e9coule un clapet anti-retour \u00e0 battant\u00a0?<\/strong><\/h3>\n\n\n\n<p>Un clapet anti-retour \u00e0 battant permet l&#039;\u00e9coulement dans <strong>une seule direction<\/strong>\u2014 le sens indiqu\u00e9 par une fl\u00e8che sur le corps de la vanne ou dans la documentation du produit. La fl\u00e8che indique le sens d&#039;\u00e9coulement pr\u00e9vu. Dans le sens direct, le fluide pousse le disque articul\u00e9 pour l&#039;ouvrir. Dans le sens inverse, toute contre-pression provoque la fermeture brutale du disque, emp\u00eachant le reflux. V\u00e9rifiez toujours le sens de la fl\u00e8che avant l&#039;installation\u00a0; installer un clapet anti-retour \u00e0 l&#039;envers (avec un \u00e9coulement oppos\u00e9 au sens indiqu\u00e9) le maintiendra ferm\u00e9 ou ouvert uniquement sous une pression extr\u00eame, ce qui annulera son utilit\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. <strong>Que se passe-t-il si un clapet anti-retour est install\u00e9 \u00e0 l&#039;envers\u00a0?<\/strong><\/h3>\n\n\n\n<p>L&#039;installation d&#039;un clapet anti-retour avec un sens d&#039;\u00e9coulement inverse \u00e0 celui indiqu\u00e9 par la fl\u00e8che provoquera un dysfonctionnement. Le disque restera ferm\u00e9, bloquant compl\u00e8tement le flux, ou ne s&#039;ouvrira que lorsque la diff\u00e9rence de pression deviendra dangereusement \u00e9lev\u00e9e (bien au-del\u00e0 des conditions normales de fonctionnement). Dans le cas d&#039;un clapet anti-retour \u00e0 battant install\u00e9 \u00e0 l&#039;envers, le disque articul\u00e9 peut \u00e9galement subir des contraintes m\u00e9caniques extr\u00eames, entra\u00eenant la rupture de l&#039;articulation ou une d\u00e9formation permanente. Avant toute installation, v\u00e9rifiez toujours le sens de la fl\u00e8che, la documentation du clapet et les sch\u00e9mas de tuyauterie. 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[&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4254,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[189],"tags":[],"class_list":["post-1998","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-check-valve"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Install a Swing Check Valve Correctly<\/title>\n<meta name=\"description\" content=\"Discover the best practices for installing a swing check valve. Learn where and how to install PANS valves for optimal performance. 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