{"id":14413,"date":"2025-12-06T20:00:00","date_gmt":"2025-12-06T12:00:00","guid":{"rendered":"https:\/\/www.xintaivalves.com\/?p=14413"},"modified":"2026-04-03T11:28:00","modified_gmt":"2026-04-03T03:28:00","slug":"wedge-gate-valve-types-applications","status":"publish","type":"post","link":"https:\/\/www.xintaivalves.com\/fr\/blog\/gate-valve\/wedge-gate-valve-types-applications\/","title":{"rendered":"Qu&#039;est-ce qu&#039;une vanne \u00e0 guillotine \u00e0 coin\u00a0: choisir le mod\u00e8le adapt\u00e9 \u00e0 votre application\u00a0?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 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 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.xintaivalves.com\/fr\/blog\/gate-valve\/wedge-gate-valve-types-applications\/#What_is_a_Wedge_Gate_Valve\" >Qu&#039;est-ce qu&#039;une vanne \u00e0 guillotine \u00e0 coin ?<\/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.xintaivalves.com\/fr\/blog\/gate-valve\/wedge-gate-valve-types-applications\/#Main_Types_of_Wedge_Gate_Valves\" >Principaux types de vannes \u00e0 guillotine \u00e0 coin<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.xintaivalves.com\/fr\/blog\/gate-valve\/wedge-gate-valve-types-applications\/#Solid_Rigid_Wedge\" >Coin solide (rigide)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.xintaivalves.com\/fr\/blog\/gate-valve\/wedge-gate-valve-types-applications\/#Flexible_Wedge\" >Coin flexible<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.xintaivalves.com\/fr\/blog\/gate-valve\/wedge-gate-valve-types-applications\/#Split_Wedge\" >Coin fendu<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.xintaivalves.com\/fr\/blog\/gate-valve\/wedge-gate-valve-types-applications\/#Key_Advantages_and_Limitations\" >Principaux avantages et limitations<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.xintaivalves.com\/fr\/blog\/gate-valve\/wedge-gate-valve-types-applications\/#Advantages\" >Avantages<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.xintaivalves.com\/fr\/blog\/gate-valve\/wedge-gate-valve-types-applications\/#Limitations\" >Limites<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.xintaivalves.com\/fr\/blog\/gate-valve\/wedge-gate-valve-types-applications\/#How_to_Choose_the_Right_Wedge_Gate_Valve\" >Comment choisir la vanne \u00e0 guillotine \u00e0 coin adapt\u00e9e<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.xintaivalves.com\/fr\/blog\/gate-valve\/wedge-gate-valve-types-applications\/#Match_Wedge_to_Temperature\" >Adapter le coin \u00e0 la temp\u00e9rature<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.xintaivalves.com\/fr\/blog\/gate-valve\/wedge-gate-valve-types-applications\/#Gate_Valve_Wedge_Material_Selection\" >S\u00e9lection du mat\u00e9riau du coin de la vanne \u00e0 guillotine<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.xintaivalves.com\/fr\/blog\/gate-valve\/wedge-gate-valve-types-applications\/#Stem_and_Bonnet_Considerations\" >Consid\u00e9rations relatives \u00e0 la tige et au chapeau<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.xintaivalves.com\/fr\/blog\/gate-valve\/wedge-gate-valve-types-applications\/#Preventing_Failure_Thermal_Binding_Pressure_Locking\" >Pr\u00e9vention des d\u00e9faillances\u00a0: Liaison thermique et verrouillage par pression<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">UN <a href=\"https:\/\/www.xintaivalves.com\/fr\/products\/casting-wedge-gate-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">vanne \u00e0 guillotine<\/a> Il s&#039;agit d&#039;une vanne d&#039;isolement \u00e0 plusieurs tours qui utilise une vanne conique pour couper les fluides et assurer une \u00e9tanch\u00e9it\u00e9 parfaite contre deux si\u00e8ges inclin\u00e9s.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Si vous avez besoin d&#039;une vanne assurant une fermeture \u00e9tanche dans les conduites de vapeur ou d&#039;eau \u00e0 haute pression sans restreindre le d\u00e9bit lorsqu&#039;elle est ouverte, c&#039;est l&#039;outil industriel qu&#039;il vous faut.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Contrairement aux vannes \u00e0 tiroir parall\u00e8le qui d\u00e9pendent uniquement de la pression de la conduite pour assurer l&#039;\u00e9tanch\u00e9it\u00e9, une vanne \u00e0 coin utilise la force m\u00e9canique de la tige pour abaisser le coin, garantissant ainsi une \u00e9tanch\u00e9it\u00e9 positive m\u00eame dans les syst\u00e8mes \u00e0 basse pression.<\/p>\n<p>Pour approfondir votre compr\u00e9hension du type qui correspond \u00e0 vos besoins, examinez l'explication d\u00e9taill\u00e9e de <a href=\"https:\/\/www.xintaivalves.com\/fr\/blog\/gate-valve\/how-does-a-wedge-gate-valve-work\/\" title=\"comment les vannes \u00e0 opercule compens\u00e9 fonctionnent\">comment les vannes \u00e0 opercule compens\u00e9 fonctionnent<\/a> et comment la conception m\u00e9canique influence les caract\u00e9ristiques de performance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce guide d\u00e9taille les conceptions sp\u00e9cifiques des cales, les choix de mat\u00e9riaux et les astuces de fonctionnement pour vous aider \u00e0 s\u00e9lectionner la vanne adapt\u00e9e \u00e0 votre installation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_a_Wedge_Gate_Valve\"><\/span>Qu&#039;est-ce qu&#039;une vanne \u00e0 guillotine \u00e0 coin ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Au-del\u00e0 de la s\u00e9lection du type, votre choix doit \u00e9galement prendre en compte <a href=\"https:\/\/www.xintaivalves.com\/fr\/blog\/gate-valve\/gate-valve-material-selection-guide\/\" title=\"les consid\u00e9rations de mat\u00e9riaux pour la s\u00e9lection des vannes \u00e0 opercule\">les consid\u00e9rations de mat\u00e9riaux pour la s\u00e9lection des vannes \u00e0 opercule<\/a> pour garantir que la vanne fonctionne de mani\u00e8re fiable tout au long de sa dur\u00e9e de vie dans votre application sp\u00e9cifique.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c0 la base, une vanne \u00e0 guillotine est con\u00e7ue dans un seul but\u00a0: arr\u00eater ou d\u00e9marrer un \u00e9coulement.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce n&#039;est pas une vanne de r\u00e9gulation.&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"474\" height=\"360\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2025\/12\/Wedge-Gate-Valve.webp\" alt=\"\" class=\"wp-image-14416\" style=\"width:200px\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2025\/12\/Wedge-Gate-Valve.webp 474w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2025\/12\/Wedge-Gate-Valve-300x228.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2025\/12\/Wedge-Gate-Valve-16x12.webp 16w\" sizes=\"(max-width: 474px) 100vw, 474px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">L&#039;utiliser pour r\u00e9guler le d\u00e9bit d&#039;un fluide est une recette pour le d\u00e9sastre car le flux \u00e0 grande vitesse \u00e9rodera le fond du coin dans un ph\u00e9nom\u00e8ne appel\u00e9 \u201c effilochage \u201d.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le nom \u201c coin \u201d provient de la forme de l&#039;\u00e9l\u00e9ment de fermeture.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Au lieu d&#039;\u00eatre plates comme une plaque, les faces de la grille sont inclin\u00e9es, g\u00e9n\u00e9ralement \u00e0 5 degr\u00e9s.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En tournant la manivelle, la tige pousse ce coin entre deux si\u00e8ges inclin\u00e9s correspondants dans le corps de la soupape.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce m\u00e9canisme de coincement cr\u00e9e une forte pression d&#039;appui, ce qui explique l&#039;efficacit\u00e9 de ces vannes pour pr\u00e9venir les fuites.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ils sont <a href=\"https:\/\/www.xintaivalves.com\/fr\/blog\/gate-valve\/gate-valve-flow-direction\/\" target=\"_blank\" rel=\"noreferrer noopener\">bidirectionnel<\/a>, ce qui signifie qu&#039;ils peuvent bloquer le flux dans les deux sens, les rendant ainsi polyvalents pour les r\u00e9seaux de tuyauterie complexes des centrales \u00e9lectriques et des raffineries.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Main_Types_of_Wedge_Gate_Valves\"><\/span>Principaux types de vannes \u00e0 guillotine \u00e0 coin<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tous les cales ne se valent pas. Leur conception interne d\u00e9termine si votre vanne r\u00e9sistera \u00e0 un choc thermique ou se bloquera compl\u00e8tement.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solid_Rigid_Wedge\"><\/span>Coin solide (rigide)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><img decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2025\/12\/solid-gate-valve.webp\" alt=\"\" class=\"wp-image-14418\" style=\"width:200px\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2025\/12\/solid-gate-valve.webp 600w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2025\/12\/solid-gate-valve-300x300.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2025\/12\/solid-gate-valve-150x150.webp 150w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2025\/12\/solid-gate-valve-12x12.webp 12w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Le coin massif est le type le plus courant et le plus robuste. Il s&#039;agit d&#039;une pi\u00e8ce unique de m\u00e9tal moul\u00e9.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gr\u00e2ce \u00e0 l&#039;absence de pi\u00e8ces mobiles internes, il est incroyablement durable et r\u00e9siste aux vibrations.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C&#039;est le choix par d\u00e9faut pour les syst\u00e8mes \u00e0 eau, \u00e0 air et \u00e0 huile o\u00f9 les temp\u00e9ratures restent stables.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cependant, sa rigidit\u00e9 est son talon d&#039;Achille.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Si vous utilisez un coin rigide dans une conduite de vapeur \u00e0 haute temp\u00e9rature, la vanne risque de se fermer \u00e0 chaud puis de se \u201c bloquer \u201d en refroidissant, un probl\u00e8me connu sous le nom de blocage thermique.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Flexible_Wedge\"><\/span>Coin flexible<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><img decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2025\/12\/flexible-gate-valve.webp\" alt=\"\" class=\"wp-image-14419\" style=\"width:200px\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2025\/12\/flexible-gate-valve.webp 600w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2025\/12\/flexible-gate-valve-300x300.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2025\/12\/flexible-gate-valve-150x150.webp 150w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2025\/12\/flexible-gate-valve-12x12.webp 12w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Pour r\u00e9soudre le probl\u00e8me de la liaison thermique, les ing\u00e9nieurs ont mis au point le coin flexible.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il s&#039;agit toujours d&#039;une construction monobloc, mais elle pr\u00e9sente une rainure ou une d\u00e9coupe profonde sur tout le p\u00e9rim\u00e8tre.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette d\u00e9coupe r\u00e9duit la section transversale, permettant aux bords ext\u00e9rieurs du coin de fl\u00e9chir l\u00e9g\u00e8rement.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette flexibilit\u00e9 permet \u00e0 la cale de s&#039;adapter aux d\u00e9fauts d&#039;alignement du si\u00e8ge et, plus important encore, de se contracter l\u00e9g\u00e8rement sans se bloquer lorsque le tuyau refroidit.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour les syst\u00e8mes \u00e0 vapeur ou toute application avec cycles thermiques, un coin flexible est obligatoire.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Split_Wedge\"><\/span>Coin fendu<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le coin fendu se compose de deux disques distincts qui peuvent \u00eatre r\u00e9gl\u00e9s ind\u00e9pendamment.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette conception auto-alignante est excellente pour la manipulation de gaz non condensables et de liquides corrosifs, l\u00e0 o\u00f9 le corps de la vanne pourrait se d\u00e9former l\u00e9g\u00e8rement sous la contrainte de la tuyauterie.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il est moins courant que les deux autres, mais inestimable dans certaines applications chimiques sp\u00e9cifiques.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Key_Advantages_and_Limitations\"><\/span>Principaux avantages et limitations<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Comprendre les compromis est crucial pour la s\u00e9curit\u00e9 du syst\u00e8me.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Advantages\"><\/span>Avantages<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le principal avantage d&#039;une vanne \u00e0 guillotine \u00e0 coin r\u00e9side dans son efficacit\u00e9 fluidique.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une fois compl\u00e8tement ouvert, le coin se soul\u00e8ve enti\u00e8rement hors du flux d&#039;\u00e9coulement, ce qui entra\u00eene une chute de pression minimale.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cela le rend id\u00e9al pour les pipelines qui n\u00e9cessitent un \u201c raclage \u201d (nettoyage).&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La force de coincement m\u00e9canique assure \u00e9galement une \u00e9tanch\u00e9it\u00e9 plus performante \u00e0 basse pression par rapport aux vannes \u00e0 guillotine parall\u00e8les, qui n\u00e9cessitent une pression syst\u00e8me \u00e9lev\u00e9e pour pousser la guillotine contre son si\u00e8ge.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Limitations\"><\/span>Limites<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ces vannes sont lentes \u00e0 fonctionner.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une grande vanne \u00e0 guillotine \u00e0 coin peut n\u00e9cessiter des centaines de tours pour se fermer, ce qui n&#039;est pas id\u00e9al dans les situations d&#039;arr\u00eat d&#039;urgence.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ils n\u00e9cessitent \u00e9galement un espace vertical important si vous optez pour un mod\u00e8le \u00e0 tige ascendante.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Plus important encore, elles sont sujettes \u00e0 l&#039;usure du si\u00e8ge si elles sont utilis\u00e9es pour la r\u00e9gulation du r\u00e9gime moteur ; le fluide turbulent d\u00e9truira rapidement la surface du si\u00e8ge.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Choose_the_Right_Wedge_Gate_Valve\"><\/span>Comment choisir la vanne \u00e0 guillotine \u00e0 coin adapt\u00e9e<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Choisir la vanne appropri\u00e9e ne se limite pas \u00e0 faire correspondre le diam\u00e8tre des tuyaux. Il faut \u00e9galement tenir compte du type de coin et des mat\u00e9riaux utilis\u00e9s, en fonction des conditions de votre proc\u00e9d\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Match_Wedge_to_Temperature\"><\/span>Adapter le coin \u00e0 la temp\u00e9rature<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Si votre syst\u00e8me fonctionne \u00e0 une temp\u00e9rature inf\u00e9rieure \u00e0 250 \u00b0F (121 \u00b0C), un coin solide est rentable et fiable.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour les conduites plus chaudes, notamment les conduites de vapeur dans une centrale \u00e9lectrique, sp\u00e9cifiez une cale flexible pour \u00e9viter le blocage.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Gate_Valve_Wedge_Material_Selection\"><\/span>S\u00e9lection du mat\u00e9riau du coin de la vanne \u00e0 guillotine<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le mat\u00e9riau du coin de la vanne \u00e0 guillotine doit r\u00e9sister \u00e0 la fois \u00e0 la corrosion et \u00e0 l&#039;usure.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour l&#039;eau et l&#039;huile standard, <a href=\"https:\/\/www.xintaivalves.com\/fr\/blog\/what-is-wcb-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">Acier au carbone (WCB)<\/a> est la norme du secteur.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cependant, la surface d&#039;appui doit \u00eatre plus dure que le coin pour \u00e9viter le grippage.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Recherchez des coins avec un rev\u00eatement dur en \u201c Stellite \u201d (un alliage de cobalt-chrome) sur les assises.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour les environnements corrosifs, le passage \u00e0 un coin en acier inoxydable (CF8M) emp\u00eache la rouille de fusionner le coin aux si\u00e8ges pendant de longues p\u00e9riodes d&#039;inactivit\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Stem_and_Bonnet_Considerations\"><\/span>Consid\u00e9rations relatives \u00e0 la tige et au chapeau<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Pour les fluides corrosifs, choisissez toujours une conception \u00e0 vis ext\u00e9rieure et \u00e9trier (OS&amp;Y).&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cela permet de maintenir le filetage de la tige hors du fluide, l&#039;emp\u00eachant ainsi de se corroder.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Si vous disposez d&#039;un espace vertical limit\u00e9, une tige non montante est une option, mais sachez que les filetages sont expos\u00e9s au fluide de process.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Preventing_Failure_Thermal_Binding_Pressure_Locking\"><\/span>Pr\u00e9vention des d\u00e9faillances\u00a0: Liaison thermique et verrouillage par pression<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L&#039;un des d\u00e9fis sp\u00e9cifiques \u00e0 ces vannes est le \u201c blocage par pression \u201d.\u201d&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cela se produit lorsque du liquide se retrouve pi\u00e9g\u00e9 dans la cavit\u00e9 du chapeau (l&#039;espace au-dessus du coin) et se dilate sous l&#039;effet de la chaleur, emp\u00eachant ainsi l&#039;ouverture de la soupape.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour \u00e9viter cela dans les applications volatiles\u00a0:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Percer un trou de d\u00e9charge<\/strong>Demandez au fabricant de percer un petit trou d&#039;\u00e9galisation de pression du c\u00f4t\u00e9 amont du coin.<\/li>\n\n\n\n<li><strong>D\u00e9rivation externe<\/strong>Installez une petite conduite de d\u00e9rivation pour \u00e9galiser la pression entre le capot et le tuyau.<\/li>\n\n\n\n<li><strong>Proc\u00e9dures d&#039;\u00e9chauffement<\/strong>\u00c9viter de fermer la vanne herm\u00e9tiquement imm\u00e9diatement apr\u00e8s un fonctionnement \u00e0 chaud peut \u00eatre utile, mais les dispositifs de contr\u00f4le technique comme les cales flexibles sont plus s\u00fbrs.<\/li>\n<\/ol>\n\n\n\n<div class=\"wp-block-cover is-light\" style=\"min-height:237px;aspect-ratio:unset;\"><img loading=\"lazy\" decoding=\"async\" width=\"3000\" height=\"2000\" class=\"wp-block-cover__image-background wp-image-7802\" alt=\"\" src=\"https:\/\/xintaivalves.com\/wp-content\/uploads\/2023\/03\/6624793_32879001.webp\" data-object-fit=\"cover\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2023\/03\/6624793_32879001.webp 3000w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2023\/03\/6624793_32879001-300x200.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2023\/03\/6624793_32879001-1024x683.webp 1024w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2023\/03\/6624793_32879001-768x512.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2023\/03\/6624793_32879001-1536x1024.webp 1536w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2023\/03\/6624793_32879001-2048x1365.webp 2048w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2023\/03\/6624793_32879001-18x12.webp 18w\" sizes=\"(max-width: 3000px) 100vw, 3000px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\" style=\"background-color:#e8e8e8\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-block-cover-is-layout-constrained\">\n<p class=\"has-black-color has-text-color has-link-color wp-elements-10176f1e50fccd365deb8f276774936a wp-block-paragraph\" style=\"font-size:27px\"><strong>Personnalisez la vanne parfaite pour votre projet ! Obtenez un devis et explorez nos options personnalis\u00e9es.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-left is-layout-flex wp-container-core-buttons-is-layout-63375db1 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50 is-style-fill\"><a class=\"wp-block-button__link has-black-color has-text-color has-background has-link-color has-extra-small-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/www.xintaivalves.com\/fr\/industrial-valve-manufacturer\/\" style=\"border-radius:100px;background-color:#d70c19\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Explorez les solutions de vannes<\/strong><\/a><\/div>\n<\/div>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>A wedge gate valve is a multi-turn isolation valve that uses a tapered gate to slice through fluids and seal tightly against two inclined seats.&nbsp; If you need a valve that provides a drop-tight shut-off in high-pressure steam or water lines without restricting flow when open, this is your industrial workhorse.&nbsp; Unlike parallel slide valves [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":14414,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[238],"tags":[],"class_list":["post-14413","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gate-valve"],"_links":{"self":[{"href":"https:\/\/www.xintaivalves.com\/fr\/wp-json\/wp\/v2\/posts\/14413","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xintaivalves.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xintaivalves.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/fr\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/fr\/wp-json\/wp\/v2\/comments?post=14413"}],"version-history":[{"count":5,"href":"https:\/\/www.xintaivalves.com\/fr\/wp-json\/wp\/v2\/posts\/14413\/revisions"}],"predecessor-version":[{"id":14883,"href":"https:\/\/www.xintaivalves.com\/fr\/wp-json\/wp\/v2\/posts\/14413\/revisions\/14883"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/fr\/wp-json\/wp\/v2\/media\/14414"}],"wp:attachment":[{"href":"https:\/\/www.xintaivalves.com\/fr\/wp-json\/wp\/v2\/media?parent=14413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/fr\/wp-json\/wp\/v2\/categories?post=14413"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/fr\/wp-json\/wp\/v2\/tags?post=14413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}