{"id":23060,"date":"2025-07-09T09:49:47","date_gmt":"2025-07-09T01:49:47","guid":{"rendered":"https:\/\/ifanplus.com\/?p=23060"},"modified":"2025-07-09T09:49:49","modified_gmt":"2025-07-09T01:49:49","slug":"caracteristiques-principales-et-applications-courantes-des-vannes-a-guillotine","status":"publish","type":"post","link":"https:\/\/ifanplus.com\/fr\/connaissance\/caracteristiques-principales-et-applications-courantes-des-vannes-a-guillotine\/","title":{"rendered":"Robinet-vanne de tuyauterie\u00a0: caract\u00e9ristiques principales et applications courantes"},"content":{"rendered":"<p class=\"wp-block-paragraph\">UN <a href=\"https:\/\/ifanplus.com\/fr\/product-category\/industrie-du-laiton\/vanne-en-laiton\/\">vanne \u00e0 guillotine de tuyauterie<\/a> Le robinet-vanne joue un r\u00f4le essentiel dans le contr\u00f4le du d\u00e9bit des liquides ou des gaz dans divers syst\u00e8mes de tuyauterie. Qu&#039;il soit utilis\u00e9 en plomberie r\u00e9sidentielle ou dans les canalisations industrielles \u00e0 grande \u00e9chelle, il assure une fermeture fiable et une restriction minimale du d\u00e9bit. Cet article explore ses principales caract\u00e9ristiques, ses utilisations pratiques et ses consid\u00e9rations d&#039;achat, aidant ainsi les ing\u00e9nieurs, les installateurs et les utilisateurs finaux \u00e0 prendre des d\u00e9cisions \u00e9clair\u00e9es.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-frequently-asked-questions-faq\">Foire aux questions (FAQ)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. \u00c0 quoi sert une vanne \u00e0 guillotine ?<\/strong><br>Il est principalement utilis\u00e9 pour d\u00e9marrer ou arr\u00eater l&#039;\u00e9coulement des fluides dans une canalisation. Son fonctionnement est optimal en position compl\u00e8tement ouverte ou compl\u00e8tement ferm\u00e9e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. Une vanne \u00e0 guillotine peut-elle r\u00e9guler le d\u00e9bit ?<\/strong><br>Non. Il ne convient pas \u00e0 l&#039;\u00e9tranglement. Une ouverture partielle peut endommager les surfaces d&#039;\u00e9tanch\u00e9it\u00e9 et r\u00e9duire la dur\u00e9e de vie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. Quels sont les mat\u00e9riaux couramment utilis\u00e9s pour les robinets-vannes ?<\/strong><br>Les fabricants utilisent g\u00e9n\u00e9ralement du laiton, de l\u2019acier inoxydable, de la fonte ou de la fonte ductile en fonction de la pression, de la temp\u00e9rature et du milieu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4. O\u00f9 ces vannes sont-elles g\u00e9n\u00e9ralement install\u00e9es ?<\/strong><br>Ils sont utilis\u00e9s dans les syst\u00e8mes d\u2019approvisionnement en eau, les ol\u00e9oducs et les gazoducs, les lignes de protection contre les incendies et les unit\u00e9s de traitement industriel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5. Quelle est la dur\u00e9e de vie d&#039;une vanne \u00e0 guillotine ?<\/strong><br>Avec une s\u00e9lection de mat\u00e9riaux et un entretien appropri\u00e9s, il peut fonctionner de mani\u00e8re fiable pendant de nombreuses ann\u00e9es, d\u00e9passant souvent 10 \u00e0 15 ans.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-definition-and-main-characteristics\">D\u00e9finition et principales caract\u00e9ristiques<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Une vanne \u00e0 guillotine est une vanne m\u00e9canique con\u00e7ue pour bloquer ou autoriser l&#039;\u00e9coulement d&#039;un fluide dans une canalisation. Elle y parvient en soulevant ou en abaissant une opercule m\u00e9tallique ou un coin \u00e0 l&#039;int\u00e9rieur du corps de la vanne. Le mouvement est perpendiculaire au trajet du fluide, garantissant ainsi une r\u00e9sistance minimale \u00e0 l&#039;\u00e9coulement.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-key-characteristics\">Caract\u00e9ristiques principales<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Chemin d&#039;\u00e9coulement direct<\/strong>:Lorsqu&#039;elle est ouverte, la vanne offre une obstruction minimale au d\u00e9bit, r\u00e9duisant ainsi la chute de pression dans le syst\u00e8me.<\/li>\n\n\n\n<li><strong>Arr\u00eat positif<\/strong>:Une fois ferm\u00e9, il assure une \u00e9tanch\u00e9it\u00e9 fiable, emp\u00eachant les fuites dans des conditions de haute pression.<\/li>\n\n\n\n<li><strong>Conception compacte<\/strong>:Bien que plus grande que les autres vannes, elle n\u00e9cessite moins d&#039;espace le long de l&#039;axe du tuyau.<\/li>\n\n\n\n<li><strong>Large compatibilit\u00e9<\/strong>:Disponible en diff\u00e9rentes tailles et mat\u00e9riaux, il s&#039;adapte \u00e0 presque toutes les configurations de tuyauterie.<\/li>\n\n\n\n<li><strong>Fonctionnement manuel ou automatis\u00e9<\/strong>:Fonctionne \u00e0 l&#039;aide de volants, de r\u00e9ducteurs ou d&#039;actionneurs \u00e9lectriques selon les exigences du syst\u00e8me.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ce type de vanne n&#039;est pas id\u00e9al pour les applications n\u00e9cessitant une commande marche\/arr\u00eat rapide ou des actionnements fr\u00e9quents. Cependant, il excelle dans les syst\u00e8mes n\u00e9cessitant une fonction d&#039;arr\u00eat stable et fiable.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-common-applications-and-industries\">Applications et industries courantes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La vanne \u00e0 guillotine est largement utilis\u00e9e dans de nombreux secteurs en raison de sa fiabilit\u00e9 et de sa polyvalence.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-municipal-water-supply\">Approvisionnement en eau municipal<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Dans les r\u00e9seaux publics de distribution d&#039;eau, ces vannes isolent les sections de canalisations lors des r\u00e9parations ou de l&#039;entretien. Leur conception \u00e0 passage int\u00e9gral garantit une faible perte d&#039;\u00e9nergie et un d\u00e9bit sans obstruction.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-oil-and-gas-pipelines\">Ol\u00e9oducs et gazoducs<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Dans les segments amont, interm\u00e9diaire et aval, les vannes \u00e0 guillotine traitent le p\u00e9trole brut, les carburants raffin\u00e9s et le gaz naturel sous haute pression. Leur \u00e9tanch\u00e9it\u00e9 les rend adapt\u00e9es aux environnements dangereux.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-fire-protection-systems\">Syst\u00e8mes de protection incendie<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Install\u00e9 dans les conduites d&#039;incendie, un robinet-vanne permet d&#039;isoler des zones en cas d&#039;urgence. Nombre d&#039;entre eux sont conformes aux certifications et normes de s\u00e9curit\u00e9 incendie requises par les codes du b\u00e2timent.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-power-plants-and-industrial-facilities\">Centrales \u00e9lectriques et installations industrielles<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les installations thermiques, nucl\u00e9aires et d&#039;\u00e9nergie renouvelable utilisent ces vannes pour r\u00e9guler la vapeur, l&#039;eau ou le gaz \u00e0 haute temp\u00e9rature. Dans les industries de transformation, elles interviennent dans les syst\u00e8mes de manipulation de produits chimiques et de fluides o\u00f9 un arr\u00eat pr\u00e9cis du d\u00e9bit est crucial.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-marine-and-offshore-installations\">Installations marines et offshore<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les vannes \u00e0 guillotine r\u00e9sistent \u00e0 la corrosion caus\u00e9e par l&#039;eau sal\u00e9e et servent aux syst\u00e8mes d&#039;admission d&#039;eau de mer, de contr\u00f4le du ballast et d&#039;\u00e9vacuation des eaux us\u00e9es sur les navires et les plates-formes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-buying-guide-what-to-look-for\">Guide d&#039;achat : ce qu&#039;il faut rechercher<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Lors du choix d&#039;un robinet-vanne pour tuyauterie, plusieurs facteurs cl\u00e9s d\u00e9terminent son ad\u00e9quation \u00e0 une application donn\u00e9e. Voici les \u00e9l\u00e9ments \u00e0 prendre en compte\u00a0:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-1-material-of-construction\">1. Mat\u00e9riau de construction<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Laiton<\/strong>:Id\u00e9al pour les conduites d\u2019eau r\u00e9sidentielles en raison de sa r\u00e9sistance \u00e0 la corrosion.<\/li>\n\n\n\n<li><strong>Acier inoxydable<\/strong>:Id\u00e9al pour les produits chimiques agressifs ou les applications \u00e0 haute pression.<\/li>\n\n\n\n<li><strong>Fonte<\/strong>:\u00c9conomique et durable pour une utilisation g\u00e9n\u00e9rale.<\/li>\n\n\n\n<li><strong>Fonte ductile<\/strong>: Plus r\u00e9sistant et plus flexible que la fonte ; adapt\u00e9 aux syst\u00e8mes enterr\u00e9s.<\/li>\n\n\n\n<li><strong>Bronze<\/strong>:Fr\u00e9quent dans les applications marines pour sa r\u00e9sistance \u00e0 la corrosion par l&#039;eau sal\u00e9e.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">S\u00e9lectionnez le mat\u00e9riau en fonction du type de fluide, de la temp\u00e9rature de fonctionnement, de la pression et du potentiel de corrosion ou d\u2019\u00e9rosion.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-2-valve-type\">2. Type de vanne<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tige montante<\/strong>:La tige se d\u00e9place vers le haut lorsqu&#039;elle est ouverte, fournissant un indicateur visuel de la position de la valve.<\/li>\n\n\n\n<li><strong>Tige non montante<\/strong>:Convient aux espaces restreints ; la tige tourne sans changer de longueur.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-end-connection\">3. Connexion finale<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00e0 brides<\/strong>: Pour des connexions industrielles s\u00e9curis\u00e9es et une facilit\u00e9 de retrait.<\/li>\n\n\n\n<li><strong>Filet\u00e9<\/strong>:Utilis\u00e9 dans les canalisations plus petites, en particulier dans les environnements r\u00e9sidentiels ou commerciaux l\u00e9gers.<\/li>\n\n\n\n<li><strong>Soud\u00e9<\/strong>: Offre une \u00e9tanch\u00e9it\u00e9 et une r\u00e9sistance permanentes dans les pipelines critiques.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-4-size-and-pressure-rating\">4. Taille et pression nominale<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e9rifiez la compatibilit\u00e9 avec les dimensions des tuyauteries existantes et les plages de pression de service. Pour des raisons de s\u00e9curit\u00e9, choisissez toujours une vanne dont la pression de service est l\u00e9g\u00e8rement sup\u00e9rieure \u00e0 la pression de service maximale du syst\u00e8me.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-5-standards-and-certifications\">5. Normes et certifications<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Recherchez des certifications telles que :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ANSI<\/li>\n\n\n\n<li>API 600<\/li>\n\n\n\n<li>ISO 9001<\/li>\n\n\n\n<li>NSF (pour l&#039;eau potable)<\/li>\n\n\n\n<li>UL\/FM (pour la protection incendie)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ces normes garantissent la qualit\u00e9 de fabrication et la fiabilit\u00e9 des performances.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-piping-gate-valve-features-and-applications-in-detail\">Robinet-vanne de tuyauterie\u00a0: caract\u00e9ristiques et applications d\u00e9taill\u00e9es<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La valeur fondamentale d&#039;une vanne \u00e0 guillotine r\u00e9side dans sa capacit\u00e9 \u00e0 assurer une fermeture efficace dans diverses situations. Son al\u00e9sage d\u00e9gag\u00e9 est id\u00e9al pour les op\u00e9rations n\u00e9cessitant un \u00e9coulement propre, sans turbulence ni cavitation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En agriculture, ces vannes permettent de g\u00e9rer les r\u00e9seaux d&#039;irrigation. Dans le traitement des eaux us\u00e9es, elles contr\u00f4lent les canalisations de boues et d&#039;effluents. Dans les immeubles de grande hauteur, elles permettent une isolation \u00e9tage par \u00e9tage lors des op\u00e9rations de maintenance ou des arr\u00eats d&#039;urgence.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gr\u00e2ce \u00e0 leur \u00e9tanch\u00e9it\u00e9 robuste et \u00e0 leur long\u00e9vit\u00e9, ils conviennent \u00e9galement aux r\u00e9seaux de canalisations souterrains. Install\u00e9s sous terre, les mod\u00e8les \u00e0 tige montante et \u00e0 tiges d&#039;extension offrent une visibilit\u00e9 optimale et une utilisation ais\u00e9e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bien que plus lents \u00e0 actionner que les robinets \u00e0 boisseau sph\u00e9rique, les robinets-vannes offrent un avantage certain pour le contr\u00f4le de grands volumes de fluides sur de longues distances. Leur fiabilit\u00e9 \u00e0 long terme et leur faible entretien en font des solutions privil\u00e9gi\u00e9es pour les installations permanentes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-piping-gate-valve-vs-other-valve-types\">Vanne \u00e0 guillotine de tuyauterie vs autres types de vannes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le tableau suivant compare la vanne \u00e0 guillotine avec d&#039;autres vannes courantes pour mettre en \u00e9vidence ses avantages sp\u00e9cifiques :<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Fonctionnalit\u00e9<\/th><th>Vanne \u00e0 guillotine pour tuyauterie<\/th><th>Robinet \u00e0 boisseau sph\u00e9rique<\/th><th>Robinet \u00e0 soupape<\/th><th>vanne papillon<\/th><\/tr><\/thead><tbody><tr><td>R\u00e9sistance \u00e0 l&#039;\u00e9coulement<\/td><td>Faible<\/td><td>Tr\u00e8s faible<\/td><td>Moyen<\/td><td>Faible<\/td><\/tr><tr><td>Capacit\u00e9 d&#039;arr\u00eat<\/td><td>Haut<\/td><td>Tr\u00e8s \u00e9lev\u00e9<\/td><td>Haut<\/td><td>Moyen<\/td><\/tr><tr><td>Ad\u00e9quation de la limitation<\/td><td>Pauvre<\/td><td>Pauvre<\/td><td>Excellent<\/td><td>\u00c9quitable<\/td><\/tr><tr><td>Disponibilit\u00e9 des tailles<\/td><td>Large gamme<\/td><td>Mod\u00e9r\u00e9<\/td><td>Mod\u00e9r\u00e9<\/td><td>Large gamme<\/td><\/tr><tr><td>Meilleur cas d&#039;utilisation<\/td><td>Contr\u00f4le marche\/arr\u00eat<\/td><td>Arr\u00eat rapide<\/td><td>R\u00e9gulation du d\u00e9bit<\/td><td>D\u00e9bits importants dans les canalisations<\/td><\/tr><tr><td>Espace d&#039;installation n\u00e9cessaire<\/td><td>Plus (vertical)<\/td><td>Compact<\/td><td>Plus<\/td><td>Compact<\/td><\/tr><tr><td>Vitesse de fonctionnement<\/td><td>Lent<\/td><td>Rapide<\/td><td>Mod\u00e9r\u00e9<\/td><td>Rapide<\/td><\/tr><tr><td>Fr\u00e9quence de maintenance<\/td><td>Faible<\/td><td>Faible<\/td><td>Mod\u00e9r\u00e9<\/td><td>Faible<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Cette comparaison montre que m\u00eame si une vanne \u00e0 guillotine de tuyauterie n&#039;est peut-\u00eatre pas id\u00e9ale pour l&#039;\u00e9tranglement, elle reste in\u00e9gal\u00e9e dans les applications \u00e0 passage int\u00e9gral et \u00e0 faible perte de charge.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le robinet-vanne est un composant essentiel des r\u00e9seaux de tuyauterie industriels et municipaux. Il offre une m\u00e9thode fiable pour interrompre ou autoriser compl\u00e8tement l&#039;\u00e9coulement des fluides, avec un minimum de perturbations et une longue dur\u00e9e de vie. Le choix du mat\u00e9riau, du type de raccordement et de la conception appropri\u00e9s garantit s\u00e9curit\u00e9 et efficacit\u00e9 pour chaque application.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Qu&#039;il s&#039;agisse de transmission d&#039;huile haute pression ou simplement de gestion de l&#039;alimentation en eau d&#039;un b\u00e2timent, un robinet-vanne adapt\u00e9 am\u00e9liorera les performances du syst\u00e8me et r\u00e9duira les co\u00fbts de maintenance au fil du temps. Comprendre ses atouts et ses limites permet aux ing\u00e9nieurs et aux acheteurs de choisir la solution la plus adapt\u00e9e \u00e0 leurs besoins sp\u00e9cifiques.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-contact-ifan-for-catalogs-and-samples\">Contactez l&#039;IFAN pour les catalogues et les \u00e9chantillons<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Besoin de documents techniques, de catalogues ou d&#039;\u00e9chantillons\u00a0? Contactez l&#039;IFAN d\u00e8s aujourd&#039;hui.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udce7 Courriel :<a href=\"https:\/\/ifanplus.com\/fr\/connaissance\/trusted-quality-polyvinyl-chloride-pipes\/jack%40ifangroup.com\/\">&nbsp;jack@ifangroup.com<\/a><br>\ud83d\udcf1 Whatsapp :&nbsp;<a href=\"https:\/\/api.whatsapp.com\/send?l=en&amp;phone=8619857948982\">+86 19857948982<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Notre \u00e9quipe r\u00e9pond rapidement et fournit un soutien professionnel pour tous vos besoins en mati\u00e8re de pipeline.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-ifan-international-standard\">Norme internationale IFAN<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les syst\u00e8mes de tuyauterie IFAN sont conformes \u00e0 un large \u00e9ventail de normes internationales pour garantir une qualit\u00e9 et des performances \u00e9lev\u00e9es. Parmi celles-ci figurent les normes ASTM F1974 et ASTM F1281 pour les syst\u00e8mes de tuyauterie multicouche, la norme CSA B137 pour les applications de plomberie canadiennes, la norme DIN 16836 pour les sp\u00e9cifications techniques allemandes, la norme GB18997 pour les normes chinoises et la norme ISO 21003, qui couvre les syst\u00e8mes de tuyauterie multicouche utilis\u00e9s pour les installations d&#039;eau chaude et froide. Ce large champ de certification souligne l&#039;engagement de l&#039;IFAN en mati\u00e8re de conformit\u00e9 mondiale et de fiabilit\u00e9 des produits.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\"><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>A piping gate valve plays a vital role in controlling the flow of liquids or gases in various piping systems. Whether used in residential plumbing or large-scale industrial pipelines, it ensures reliable shutoff and minimal flow restriction. This article explores its core features, practical uses, and purchasing considerations, helping engineers, installers, and end-users make well-informed [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":23061,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[13],"tags":[275,658,652],"class_list":["post-23060","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-brass-ball-valve","tag-brass-gate-valve","tag-brass-shut-off-valve"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v27.7) - 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