{"id":2471,"date":"2025-04-07T14:06:21","date_gmt":"2025-04-07T06:06:21","guid":{"rendered":"https:\/\/www.pansvalve.com\/?p=2471"},"modified":"2026-01-16T17:08:57","modified_gmt":"2026-01-16T09:08:57","slug":"what-is-the-difference-between-nrs-and-osy-gate-valves","status":"publish","type":"post","link":"https:\/\/www.pansvalve.com\/fr\/blog\/gate-valve\/what-is-the-difference-between-nrs-and-osy-gate-valves\/","title":{"rendered":"Quelle est la diff\u00e9rence entre les vannes \u00e0 guillotine NRS et OS&amp;Y\u00a0?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 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\/gate-valve\/what-is-the-difference-between-nrs-and-osy-gate-valves\/#Gate_Valve_Basics_What_They_Do_and_Why_They_Matter\" >Notions de base sur les robinets-vannes\u00a0: leur r\u00f4le et leur importance<\/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\/gate-valve\/what-is-the-difference-between-nrs-and-osy-gate-valves\/#What_Is_an_OS_Y_Gate_Valve\" >Qu&#039;est-ce qu&#039;une vanne \u00e0 guillotine OS&amp;Y ?<\/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\/gate-valve\/what-is-the-difference-between-nrs-and-osy-gate-valves\/#What_Is_a_Non-Rising_Stem_NRS_Gate_Valve\" >Qu&#039;est-ce qu&#039;une vanne \u00e0 guillotine \u00e0 tige non montante (NRS)\u00a0?<\/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\/gate-valve\/what-is-the-difference-between-nrs-and-osy-gate-valves\/#OS_Y_Gate_Valve_vs_Non-Rising_Stem_Key_Differences\" >Vanne \u00e0 guillotine OS Y vs. vanne \u00e0 tige non montante\u00a0: principales diff\u00e9rences<\/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\/gate-valve\/what-is-the-difference-between-nrs-and-osy-gate-valves\/#Advantages_and_Disadvantages\" >Avantages et inconv\u00e9nients<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.pansvalve.com\/fr\/blog\/gate-valve\/what-is-the-difference-between-nrs-and-osy-gate-valves\/#Where_Each_Valve_Is_Mostly_Used\" >O\u00f9 chaque vanne est principalement utilis\u00e9e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.pansvalve.com\/fr\/blog\/gate-valve\/what-is-the-difference-between-nrs-and-osy-gate-valves\/#Installation_Maintenance_Tips\" >Conseils d&#039;installation et d&#039;entretien<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.pansvalve.com\/fr\/blog\/gate-valve\/what-is-the-difference-between-nrs-and-osy-gate-valves\/#FAQ_OS_Y_Gate_Valve_vs_Non-Rising_Stem\" >FAQ\u00a0: Vanne \u00e0 guillotine OS Y vs vanne \u00e0 tige non montante<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.pansvalve.com\/fr\/blog\/gate-valve\/what-is-the-difference-between-nrs-and-osy-gate-valves\/#Conclusion_Choosing_the_Right_Valve_for_Your_Needs\" >Conclusion\u00a0: Choisir la vanne adapt\u00e9e \u00e0 vos besoins<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.pansvalve.com\/fr\/blog\/gate-valve\/what-is-the-difference-between-nrs-and-osy-gate-valves\/#State-of-the-Art_Manufacturing\" >Fabrication de pointe<\/a><\/li><\/ul><\/nav><\/div>\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"585\" src=\"https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-5-1024x585.jpeg\" alt=\"\" class=\"wp-image-2473\" srcset=\"https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-5-1024x585.jpeg 1024w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-5-300x171.jpeg 300w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-5-768x439.jpeg 768w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-5-1536x877.jpeg 1536w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-5-18x10.jpeg 18w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-5.jpeg 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Lorsqu&#039;on compare les vannes \u00e0 guillotine OS&amp;Y aux vannes \u00e0 guillotine \u00e0 tige non montante (NRS), la diff\u00e9rence r\u00e9side dans le mouvement de la tige, et son importance pour la s\u00e9curit\u00e9, la maintenance et la visibilit\u00e9. En r\u00e9sum\u00e9, les vannes OS&amp;Y ont une tige montante visible, tandis que les vannes NRS la dissimulent. Chacune a sa fonction, selon l&#039;application.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cet article pr\u00e9sente la conception, la fonction, les avantages et les inconv\u00e9nients de chaque type, ainsi que les domaines d&#039;application les plus adapt\u00e9s. Que ce soit pour la protection incendie, les r\u00e9seaux d&#039;eau ou les syst\u00e8mes industriels, ce guide vous aidera \u00e0 choisir en toute confiance entre une vanne \u00e0 guillotine OS&amp;Y et une vanne \u00e0 guillotine NRS.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Gate_Valve_Basics_What_They_Do_and_Why_They_Matter\"><\/span><strong>Notions de base sur les robinets-vannes\u00a0: leur r\u00f4le et leur importance<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.pansvalve.com\/fr\/blog\/gate-valve\/guide-to-industrial-gate-valve\/\">Vannes <\/a>Ce sont des vannes d&#039;arr\u00eat qui contr\u00f4lent le d\u00e9bit en soulevant une vanne hors du circuit du fluide. En position compl\u00e8tement ouverte, elles minimisent les pertes de pression. En position ferm\u00e9e, elles assurent une \u00e9tanch\u00e9it\u00e9 parfaite.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Moderne <a href=\"https:\/\/www.pansvalve.com\/fr\/blog\/gate-valve\/guide-to-industrial-gate-valve\/\">vannes \u00e0 guillotine industrielles<\/a> doivent respecter des protocoles de fabrication stricts, tels que <a href=\"https:\/\/www.pansvalve.com\/fr\/blog\/gate-valve\/7-key-api-standards-for-gate-valves\/\">Normes API pour les vannes \u00e0 guillotine<\/a>, garantissant ainsi des performances optimales dans les environnements critiques.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ces vannes sont courantes dans les syst\u00e8mes d&#039;approvisionnement en eau, les conduites de protection incendie, les installations p\u00e9troli\u00e8res et gazi\u00e8res, etc. Leur conception simple les rend fiables, mais le choix du type de tige (OS&amp;Y ou NRS) est crucial.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_an_OS_Y_Gate_Valve\"><\/span><strong>Qu&#039;est-ce qu&#039;une vanne \u00e0 guillotine OS&amp;Y ?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"585\" src=\"https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-6-1024x585.jpeg\" alt=\"\" class=\"wp-image-2474\" srcset=\"https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-6-1024x585.jpeg 1024w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-6-300x171.jpeg 300w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-6-768x439.jpeg 768w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-6-1536x877.jpeg 1536w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-6-18x10.jpeg 18w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-6.jpeg 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>R\u00e9sum\u00e9 rapide :<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Signification de OS&amp;Y<\/strong>: \u00ab Vis et joug ext\u00e9rieurs. \u00bb<\/li>\n\n\n\n<li><strong>Emplacement de la tige<\/strong>: \u00c0 l&#039;ext\u00e9rieur du corps de la vanne<\/li>\n\n\n\n<li><strong>rep\u00e8re visuel<\/strong>: La tige montante indique si la vanne est ouverte ou ferm\u00e9e<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Une vanne \u00e0 guillotine OS&amp;Y poss\u00e8de une tige filet\u00e9e situ\u00e9e \u00e0 l&#039;ext\u00e9rieur du corps. Lorsque la roue tourne, la tige monte ou descend visiblement, d\u00e9pla\u00e7ant la guillotine interne. Cette conception permet de visualiser facilement la position de la vanne d&#039;un seul coup d&#039;\u0153il.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Beaucoup <a href=\"https:\/\/www.pansvalve.com\/fr\/products\/forged-gate-valve\/\">vannes \u00e0 guillotine forg\u00e9es<\/a> Utilisez cette conception pour vous assurer que les filetages restent \u00e0 l&#039;\u00e9cart des milieux \u00e0 haute pression ou corrosifs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Que sont les soupapes \u00e0 tige montante ?<\/strong> <\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les vannes \u00e0 tige montante comme les OS&amp;Y sont pr\u00e9f\u00e9r\u00e9es lorsqu&#039;une surveillance fr\u00e9quente est n\u00e9cessaire, par exemple\u00a0: <a href=\"https:\/\/www.pansvalve.com\/fr\/blog\/gate-valve\/rising-stem-gate-valve-vs-non-rising-stem\/\">syst\u00e8mes de protection contre l&#039;incendie<\/a> ou des pipelines industriels.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour pr\u00e9venir les fuites dangereuses,<a href=\"https:\/\/www.pansvalve.com\/fr\/products\/bellow-sealed-gate-valve\/\"> vannes \u00e0 guillotine \u00e0 soufflet \u00e9tanches<\/a> int\u00e8grent souvent la structure OS&amp;Y pour une fiabilit\u00e9 accrue.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Une valve OS&amp;Y est-elle ouverte lorsque la tige est relev\u00e9e\u00a0?<\/strong> <\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Oui. Lorsque la tige est relev\u00e9e, la vanne est ouverte. Lorsqu&#039;elle est abaiss\u00e9e, elle est ferm\u00e9e. Cela permet d&#039;\u00e9valuer rapidement l&#039;\u00e9tat lors des inspections.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_a_Non-Rising_Stem_NRS_Gate_Valve\"><\/span><strong>Qu&#039;est-ce qu&#039;une vanne \u00e0 guillotine \u00e0 tige non montante (NRS)\u00a0?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"585\" src=\"https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-7-1024x585.jpeg\" alt=\"\" class=\"wp-image-2475\" srcset=\"https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-7-1024x585.jpeg 1024w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-7-300x171.jpeg 300w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-7-768x439.jpeg 768w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-7-1536x877.jpeg 1536w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-7-18x10.jpeg 18w, https:\/\/www.pansvalve.com\/wp-content\/uploads\/2025\/04\/image-7.jpeg 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>R\u00e9sum\u00e9 rapide :<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Vanne \u00e0 guillotine NRS<\/strong>: La tige reste \u00e0 l&#039;int\u00e9rieur du corps<\/li>\n\n\n\n<li><strong>Gain de place<\/strong>:Id\u00e9al lorsque le d\u00e9gagement vertical est limit\u00e9<\/li>\n\n\n\n<li><strong>Plus difficile \u00e0 dire<\/strong>: La position de la vanne n&#039;est pas visible de l&#039;ext\u00e9rieur<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Dans une vanne \u00e0 guillotine NRS, la tige ne monte pas \u00e0 l&#039;ext\u00e9rieur. Elle tourne \u00e0 l&#039;int\u00e9rieur du corps pour lever ou abaisser la guillotine. Comme la tige ne bouge pas, il est plus difficile de savoir si la vanne est ouverte ou ferm\u00e9e sans indicateurs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Des mod\u00e8les courants comme le <a href=\"https:\/\/www.pansvalve.com\/fr\/products\/wedge-gate-valve\/\">vanne \u00e0 cale<\/a> On utilise fr\u00e9quemment les tiges NRS pour la distribution d&#039;eau municipale.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les vannes \u00e0 guillotine NRS sont souvent utilis\u00e9es dans les conduites d&#039;eau souterraines ou dans les locaux m\u00e9caniques \u00e9troits o\u00f9 l&#039;espace est limit\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"OS_Y_Gate_Valve_vs_Non-Rising_Stem_Key_Differences\"><\/span><strong>Vanne \u00e0 guillotine OS Y vs. vanne \u00e0 tige non montante\u00a0: principales diff\u00e9rences<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Crit\u00e8res<\/strong><\/td><td><strong>Robinet-vanne OS&amp;Y<\/strong><\/td><td><strong>Vanne \u00e0 guillotine NRS<\/strong><\/td><\/tr><tr><td><strong>1. Visibilit\u00e9 et fonctionnement de la tige<\/strong><\/td><td>La tige externe monte ou descend ; elle indique clairement une position ouverte\/ferm\u00e9e<\/td><td>La tige interne reste stationnaire\u00a0; aucun rep\u00e8re visible pour la position de la valve<\/td><\/tr><tr><td><strong>2. Espace d&#039;installation<\/strong><\/td><td>N\u00e9cessite un d\u00e9gagement vertical plus important en raison de la tige montante<\/td><td>Conception compacte ; id\u00e9ale pour les installations souterraines ou confin\u00e9es<\/td><\/tr><tr><td><strong>3. Besoins d&#039;entretien<\/strong><\/td><td>Il est plus facile \u00e0 inspecter et \u00e0 lubrifier gr\u00e2ce \u00e0 la tige expos\u00e9e<\/td><td>La tige est interne et expos\u00e9e au courant ; elle n\u00e9cessite un entretien plus fr\u00e9quent<\/td><\/tr><tr><td><strong>4. Ad\u00e9quation de l&#039;application<\/strong><\/td><td>Id\u00e9al pour :<br>\u2013 Syst\u00e8mes de protection incendie \u2013 Fonctionnement visible \u2013 Utilisation \u00e0 haute pression\/haute temp\u00e9rature<\/td><td>Id\u00e9al pour :<br>\u2013 Conduites immerg\u00e9es\/enterr\u00e9es \u2013 Syst\u00e8mes d\u2019eau et d\u2019eaux us\u00e9es \u2013 Espace limit\u00e9<\/td><\/tr><tr><td><strong>5. Durabilit\u00e9 et exposition<\/strong><\/td><td>Les filetages externes peuvent \u00eatre sujets \u00e0 des dommages sans protection ad\u00e9quate<\/td><td>La tige situ\u00e9e \u00e0 l&#039;int\u00e9rieur est plus prot\u00e9g\u00e9e des impacts externes mais plus vuln\u00e9rable \u00e0 l&#039;usure interne<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Advantages_and_Disadvantages\"><\/span><strong>Avantages et inconv\u00e9nients<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Robinet-vanne OS&amp;Y<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Avantages :<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La tige visible permet de v\u00e9rifier facilement l&#039;\u00e9tat de fonctionnement.<\/li>\n\n\n\n<li>Usure interne r\u00e9duite puisque la tige n&#039;est pas expos\u00e9e au flux<\/li>\n\n\n\n<li>Plus facile \u00e0 entretenir et \u00e0 r\u00e9parer<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Inconv\u00e9nients :<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sa hauteur plus \u00e9lev\u00e9e le rend inadapt\u00e9 aux espaces confin\u00e9s<\/li>\n\n\n\n<li>La tige expos\u00e9e peut n\u00e9cessiter une protection suppl\u00e9mentaire \u00e0 l&#039;ext\u00e9rieur<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Vanne \u00e0 guillotine NRS<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Avantages :<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La conception compacte s&#039;adapte aux zones \u00e9troites ou souterraines<\/li>\n\n\n\n<li>Moins sujet aux dommages accidentels caus\u00e9s par des facteurs externes<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Inconv\u00e9nients :<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Il n&#039;y a aucun moyen de savoir si la vanne est ouverte ou ferm\u00e9e sans indicateur<\/li>\n\n\n\n<li>Les filetages de la tige s&#039;usent plus rapidement en raison du contact avec le fluide<\/li>\n\n\n\n<li>L&#039;entretien et la lubrification sont plus difficiles<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Where_Each_Valve_Is_Mostly_Used\"><\/span><strong>O\u00f9 chaque vanne est principalement utilis\u00e9e<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u00c0 quoi sert principalement la potence OS&amp;Y ?<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Syst\u00e8mes de gicleurs d&#039;incendie<\/li>\n\n\n\n<li>Syst\u00e8mes \u00e0 vapeur (Pourquoi les vannes OS&amp;Y sont-elles utilis\u00e9es dans les syst\u00e8mes \u00e0 vapeur ? Parce que leurs tiges expos\u00e9es r\u00e9duisent le risque d&#039;endommagement du filetage par la corrosion de la vapeur.)<\/li>\n\n\n\n<li>Installations industrielles o\u00f9 l&#039;\u00e9tat des vannes doit \u00eatre v\u00e9rifi\u00e9 fr\u00e9quemment<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>L\u00e0 o\u00f9 les valves NRS brillent :<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Distribution d&#039;eau<\/li>\n\n\n\n<li>Stations de traitement des eaux us\u00e9es<\/li>\n\n\n\n<li>Installations immerg\u00e9es ou enterr\u00e9es<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Si vous concevez ou modernisez des syst\u00e8mes de protection incendie, de distribution d&#039;eau ou de vapeur, notre \u00e9quipe d&#039;ing\u00e9nieurs peut vous aider \u00e0 d\u00e9terminer si OS&amp;Y ou NRS est le mieux adapt\u00e9 \u00e0 votre projet.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-red-background-color has-text-color has-background has-link-color wp-element-button\">Obtenez un devis<\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Installation_Maintenance_Tips\"><\/span><strong>Conseils d&#039;installation et d&#039;entretien<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Efficace <a href=\"https:\/\/www.pansvalve.com\/fr\/blog\/gate-valve\/gate-valve-repair-causes-solutions-repair-tips\/\">entretien des vannes \u00e0 guillotine<\/a> est essentiel pour \u00e9viter des temps d&#039;arr\u00eat co\u00fbteux.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Pour les vannes OS&amp;Y\u00a0:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Laissez suffisamment d&#039;espace vertical pour la tige montante<\/li>\n\n\n\n<li>Inspecter et lubrifier p\u00e9riodiquement les filetages externes<\/li>\n\n\n\n<li>Utiliser des verrous de vanne pour emp\u00eacher toute alt\u00e9ration, en particulier dans les syst\u00e8mes publics<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Pour les vannes NRS\u00a0:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Utiliser des indicateurs de position externes si n\u00e9cessaire<\/li>\n\n\n\n<li>Pr\u00e9voyez des contr\u00f4les r\u00e9guliers de l&#039;usure du filetage interne<\/li>\n\n\n\n<li>Appliquer un rev\u00eatement r\u00e9sistant \u00e0 la corrosion pour les syst\u00e8mes immerg\u00e9s<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQ_OS_Y_Gate_Valve_vs_Non-Rising_Stem\"><\/span><strong>FAQ\u00a0: Vanne \u00e0 guillotine OS Y vs vanne \u00e0 tige non montante<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Que signifie l&#039;acronyme OS&amp;Y valve ?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">OS&amp;Y signifie \u201c\u00a0Outside Screw and Yoke\u00a0\u201d (vis et \u00e9trier ext\u00e9rieurs). Ce terme d\u00e9signe une vanne \u00e0 guillotine dont le filetage de la tige est situ\u00e9 \u00e0 l&#039;ext\u00e9rieur du corps de la vanne. Un \u00e9trier maintient la tige en place lors de sa mont\u00e9e et de sa descente, prot\u00e9geant ainsi le filetage du fluide contre la corrosion et facilitant la lubrification.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Quelle est la diff\u00e9rence entre les vannes \u00e0 tige montante et non montante ?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La principale diff\u00e9rence r\u00e9side dans la visibilit\u00e9 et l&#039;espace :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tige montante (OS&amp;Y) :<\/strong> La tige se d\u00e9place de haut en bas. On peut voir si la vanne est ouverte ou ferm\u00e9e d&#039;un simple coup d&#039;\u0153il. Elle n\u00e9cessite plus d&#039;espace vertical.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tige non montante (NRS) :<\/strong> La tige pivote mais ne se d\u00e9place pas vers le haut. Ce mod\u00e8le compact est id\u00e9al pour les espaces souterrains ou restreints, m\u00eame s&#039;il est impossible de v\u00e9rifier visuellement la position du portail.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Qu&#039;est-ce qu&#039;une vanne \u00e0 guillotine OS et Y ?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Il s&#039;agit d&#039;un type de vanne \u00e0 guillotine avec une tige qui s&#039;\u00e9l\u00e8ve \u00e0 l&#039;ext\u00e9rieur de la vanne lorsqu&#039;elle est ouverte, ce qui permet de voir facilement si elle est ouverte ou ferm\u00e9e.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>OS&amp;Y est-il identique \u00e0 la tige montante ?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Oui. OS&amp;Y est une vanne \u00e0 tige montante o\u00f9 la tige se d\u00e9place visiblement lorsque la porte s&#039;ouvre ou se ferme.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Quels sont les avantages des vannes OS&amp;Y ?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Inspection visuelle facile, meilleure \u00e9tanch\u00e9it\u00e9, usure r\u00e9duite et entretien plus simple.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Quand dois-je utiliser une vanne \u00e0 guillotine OS&amp;Y\u00a0?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Utilisez un <strong>vanne \u00e0 guillotine OS&amp;Y<\/strong> pour:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>S\u00e9curit\u00e9 incendie :<\/strong> N\u00e9cessaire pour une visualisation instantan\u00e9e de l&#039;\u00e9tat (par exemple, conformit\u00e9 NFPA).<\/li>\n\n\n\n<li><strong>Conduites corrosives\/\u00e0 vapeur :<\/strong> Les filetages ext\u00e9rieurs \u00e9vitent le contact avec le fluide, pr\u00e9venant ainsi l&#039;usure.<\/li>\n\n\n\n<li><strong>Entretien facile\u00a0:<\/strong> Permet la lubrification du filetage sans d\u00e9montage.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Alors que les vannes NRS conviennent \u00e0 la distribution d&#039;eau enterr\u00e9e, OS&amp;Y est la norme pour les applications industrielles critiques en mati\u00e8re de s\u00e9curit\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion_Choosing_the_Right_Valve_for_Your_Needs\"><\/span><strong>Conclusion\u00a0: Choisir la vanne adapt\u00e9e \u00e0 vos besoins<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Comprendre la diff\u00e9rence fondamentale entre la vanne \u00e0 guillotine OS&amp;Y et la vanne \u00e0 tige non montante est essentiel pour choisir votre syst\u00e8me. Si la visibilit\u00e9, l&#039;accessibilit\u00e9 pour la maintenance et une \u00e9tanch\u00e9it\u00e9 haute fiabilit\u00e9 sont des crit\u00e8res importants, la vanne \u00e0 guillotine OS&amp;Y est la solution id\u00e9ale. Si vous travaillez dans des environnements exigus, souterrains ou immerg\u00e9s, la vanne \u00e0 guillotine NRS offre la solution compacte dont vous avez besoin.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c0 <a href=\"https:\/\/www.pansvalve.com\/fr\/company-profile\/\">VALVE DE CASSEROLES<\/a>, Nous fabriquons les deux types de vannes avec pr\u00e9cision, qualit\u00e9 et performance. Que vous recherchiez des vannes pour les r\u00e9seaux d&#039;eau potable, les conduites de vapeur industrielles ou les r\u00e9seaux de protection incendie, nous proposons une gamme compl\u00e8te de vannes \u00e0 guillotine NRS et OS&amp;Y adapt\u00e9es \u00e0 chaque application. <a href=\"https:\/\/www.pansvalve.com\/fr\/product\/\">D\u00e9couvrez notre catalogue complet ici.<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Pour une assistance personnalis\u00e9e ou des demandes de renseignements en masse,<a href=\"https:\/\/www.pansvalve.com\/fr\/contact-us\/\"> contactez notre \u00e9quipe<\/a> Chez PANS Valve \u2014 l\u00e0 o\u00f9 la qualit\u00e9 rencontre l&#039;innovation<\/em><\/p>\n\n\n\n<style>\n\/* CTA Card Optimized - Single Line Title *\/\n.cta-card-single-line {\n    max-width: 650px; \n    margin: 40px auto;\n    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;\n    padding: 0;\n    border-radius: 12px;\n    overflow: hidden;\n    box-shadow: 0 15px 45px rgba(0, 0, 0, 0.3);\n    position: relative;\n    text-decoration: none;\n    display: block;\n    transition: transform 0.3s ease;\n}\n\n.cta-card-single-line:hover {\n    transform: translateY(-5px);\n}\n\n\/* Background Layer *\/\n.cta-bg-wrapper-final {\n    width: 100%;\n    height: 280px; \n    \/* Pansvalve \u80cc\u666f\u56fe *\/\n    background-image: url('https:\/\/www.pansvalve.com\/wp-content\/uploads\/2022\/03\/%E7%BB%84-2697.jpg');\n    background-size: cover;\n    background-position: center;\n    position: relative;\n}\n\n\/* Centered Overlay *\/\n.cta-overlay-centered {\n    position: absolute;\n    top: 0;\n    left: 0;\n    width: 100%;\n    height: 100%;\n    background-color: rgba(0, 0, 0, 0.55); \n    display: flex;\n    flex-direction: column;\n    align-items: center;    \n    justify-content: center; \n    text-align: center;\n    padding: 20px 30px;\n    box-sizing: border-box;\n}\n\n\/* Heading *\/\n.cta-title-line {\n    color: #ffffff;\n    font-size: 1.85rem; \n    font-weight: 800;\n    margin: 0 0 10px 0; \n    line-height: 1.2;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    width: 100%;\n    white-space: nowrap; \n    text-shadow: 2px 4px 10px rgba(0, 0, 0, 0.7); \n}\n\n.cta-desc-line {\n    color: #f5f5f5;\n    font-size: 1rem; \n    line-height: 1.4;\n    margin: 0 0 20px 0; \n    max-width: 520px;\n    text-shadow: 1px 2px 5px rgba(0, 0, 0, 0.5);\n}\n\n\/* Action Button - \u7ea2\u8272\u7248\u672c *\/\n.cta-btn-final {\n    display: inline-block;\n    \/* \u4fee\u6539\u4e3a\u7ea2\u8272 #E6212A *\/\n    background-color: #E6212A; \n    color: white;\n    padding: 12px 36px;\n    border-radius: 6px;\n    text-decoration: none;\n    font-size: 1rem;\n    font-weight: 700;\n    transition: background-color 0.2s ease;\n    border: none;\n    \/* \u914d\u5957\u7684\u7ea2\u8272\u9634\u5f71 *\/\n    box-shadow: 0 4px 15px rgba(230, 33, 42, 0.3); \n}\n\n.cta-card-single-line:hover .cta-btn-final {\n    \/* Hover \u6df1\u7ea2\u8272 *\/\n    background-color: #B91C23; \n}\n\n\/* Mobile Responsive *\/\n@media (max-width: 600px) {\n    .cta-title-line {\n        font-size: 1.3rem;\n        white-space: normal; \n    }\n    .cta-bg-wrapper-final {\n        height: 240px; \n    }\n}\n<\/style>\n\n<a href=\"https:\/\/www.pansvalve.com\/fr\/manufacturing\/\" class=\"cta-card-single-line\" target=\"_blank\">\n    <div class=\"cta-bg-wrapper-final\">\n        <div class=\"cta-overlay-centered\">\n            <h2 class=\"cta-title-line\"><span class=\"ez-toc-section\" id=\"State-of-the-Art_Manufacturing\"><\/span>Fabrication de pointe<span class=\"ez-toc-section-end\"><\/span><\/h2>\n            <p class=\"cta-desc-line\">D\u00e9couvrez nos installations de production de pointe et nos processus de contr\u00f4le qualit\u00e9 rigoureux qui garantissent les normes les plus \u00e9lev\u00e9es.<\/p>\n            <span class=\"cta-btn-final\">PROCESSUS DE VISIONNAGE<\/span>\n        <\/div>\n    <\/div>\n<\/a>","protected":false},"excerpt":{"rendered":"<p>When comparing OS&amp;Y gate valves vs. non rising stem (NRS) gate valves, the difference comes down to how the valve stem moves\u2014and why that matters for safety, maintenance, and visibility. Simply put, OS&amp;Y valves have a rising stem, you can see, while NRS valves keep the stem hidden inside. Each serves a purpose, depending on [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2473,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[188],"tags":[],"class_list":["post-2471","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gate-valve"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What is the Difference Between NRS and OS&amp;Y Gate Valves?<\/title>\n<meta name=\"description\" content=\"Need clarity on OS Y gate valve vs non rising stem? PANS outlines key differences and where each fits best. 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