{"id":23071,"date":"2025-07-09T10:10:19","date_gmt":"2025-07-09T02:10:19","guid":{"rendered":"https:\/\/ifanplus.com\/?p=23071"},"modified":"2025-07-09T10:16:38","modified_gmt":"2025-07-09T02:16:38","slug":"faits-essentiels-sur-les-vannes-a-guillotine","status":"publish","type":"post","link":"https:\/\/ifanplus.com\/fr\/connaissance\/faits-essentiels-sur-les-vannes-a-guillotine\/","title":{"rendered":"Informations essentielles sur les vannes \u00e0 guillotine"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><a href=\"https:\/\/ifanplus.com\/fr\/product-category\/industrie-du-laiton\/vanne-en-laiton\/\">Vannes \u00e0 guillotine pour tuyauterie <\/a>Ce sont des composants essentiels des syst\u00e8mes de contr\u00f4le des fluides dans de nombreux secteurs. Leur conception simple mais efficace permet un contr\u00f4le efficace du d\u00e9bit tout ou rien avec une perte de charge minimale. Comprendre les caract\u00e9ristiques essentielles des robinets-vannes de tuyauterie aide les ing\u00e9nieurs, les techniciens et les responsables d&#039;installations \u00e0 prendre des d\u00e9cisions \u00e9clair\u00e9es concernant leur utilisation, leur installation et leur maintenance. Cet article pr\u00e9sente la d\u00e9finition et les caract\u00e9ristiques de base, les applications courantes, les conseils de s\u00e9lection et une comparaison avec d&#039;autres types de vannes, offrant ainsi une vue d&#039;ensemble compl\u00e8te \u00e0 toute personne impliqu\u00e9e dans les syst\u00e8mes de tuyauterie.<\/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. Qu&#039;est-ce qu&#039;une vanne \u00e0 guillotine ?<\/strong><br>Une vanne \u00e0 guillotine est une vanne qui utilise une guillotine coulissante pour ouvrir ou fermer le passage du fluide dans une canalisation. Son fonctionnement consiste g\u00e9n\u00e9ralement \u00e0 lever ou \u00e0 abaisser une guillotine \u00e0 l&#039;int\u00e9rieur du corps de la vanne pour permettre un d\u00e9bit maximal ou une fermeture compl\u00e8te.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. Les vannes \u00e0 guillotine peuvent-elles r\u00e9guler le d\u00e9bit ?<\/strong><br>Non. Ces vannes sont con\u00e7ues pour \u00eatre compl\u00e8tement ouvertes ou compl\u00e8tement ferm\u00e9es. Une utilisation partiellement ouverte peut endommager la vanne et provoquer des fuites.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. De quels mat\u00e9riaux sont fabriqu\u00e9es les vannes \u00e0 guillotine pour tuyauterie ?<\/strong><br>Les mat\u00e9riaux courants comprennent la fonte, la fonte ductile, le laiton, le bronze, l&#039;acier inoxydable et l&#039;acier au carbone. Le choix du mat\u00e9riau d\u00e9pend du type de fluide, de la pression, de la temp\u00e9rature et des conditions environnementales.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4. O\u00f9 les vannes \u00e0 guillotine sont-elles g\u00e9n\u00e9ralement utilis\u00e9es ?<\/strong><br>Ils sont largement utilis\u00e9s dans les syst\u00e8mes d\u2019approvisionnement en eau, les ol\u00e9oducs et les gazoducs, les usines chimiques, les syst\u00e8mes de protection contre les incendies et de nombreuses applications industrielles n\u00e9cessitant un arr\u00eat fiable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5. Comment choisir le bon robinet-vanne de tuyauterie ?<\/strong><br>Tenez compte des valeurs nominales de pression et de temp\u00e9rature, de la taille de la vanne, de la compatibilit\u00e9 des mat\u00e9riaux, du type de connexion et de la conformit\u00e9 aux normes de l\u2019industrie.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-definition-and-key-characteristics-of-piping-gate-valves\">D\u00e9finition et caract\u00e9ristiques cl\u00e9s des vannes \u00e0 guillotine<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Une vanne \u00e0 guillotine contr\u00f4le l&#039;\u00e9coulement du fluide en d\u00e9pla\u00e7ant une vanne perpendiculairement au trajet d&#039;\u00e9coulement. Lorsque la vanne se l\u00e8ve, le fluide s&#039;\u00e9coule librement avec une r\u00e9sistance minimale\u00a0; lorsqu&#039;elle est abaiss\u00e9e, elle bloque compl\u00e8tement le passage. Le fonctionnement de la vanne est g\u00e9n\u00e9ralement manuel, \u00e0 l&#039;aide d&#039;un volant, mais des options d&#039;automatisation sont \u00e9galement disponibles.<\/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>Flux direct :<\/strong> Cette conception r\u00e9duit les turbulences et les chutes de pression lorsqu&#039;elle est compl\u00e8tement ouverte.<\/li>\n\n\n\n<li><strong>\u00c9tanch\u00e9it\u00e9 bidirectionnelle :<\/strong> La vanne peut g\u00e9rer le d\u00e9bit dans les deux sens.<\/li>\n\n\n\n<li><strong>Al\u00e9sage int\u00e9gral :<\/strong> L&#039;ouverture \u00e0 l&#039;int\u00e9rieur de la vanne correspond au diam\u00e8tre du tuyau, permettant un \u00e9coulement sans obstruction.<\/li>\n\n\n\n<li><strong>Durabilit\u00e9:<\/strong> Con\u00e7u pour r\u00e9sister \u00e0 des pressions et des temp\u00e9ratures \u00e9lev\u00e9es selon le mat\u00e9riau et la construction.<\/li>\n\n\n\n<li><strong>Faible entretien :<\/strong> La conception simple avec moins de pi\u00e8ces mobiles facilite l&#039;entretien.<\/li>\n\n\n\n<li><strong>Options de tige montante et non montante :<\/strong> Les vannes \u00e0 tige montante indiquent la position de la vanne \u00e0 l&#039;ext\u00e9rieur ; les vannes \u00e0 tige non montante permettent de gagner de la place, id\u00e9ales pour les installations souterraines.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-common-applications-and-industry-uses\">Applications courantes et utilisations industrielles<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les robinets-vannes de tuyauterie sont utilis\u00e9s dans diverses applications n\u00e9cessitant une isolation du flux. Leur robustesse et leur fiabilit\u00e9 en font un incontournable dans de nombreux secteurs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-water-treatment-and-distribution\">Traitement et distribution de l&#039;eau<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les vannes \u00e0 guillotine isolent certaines sections des conduites d&#039;eau pour l&#039;entretien ou les urgences. Leur conception \u00e0 passage int\u00e9gral minimise les pertes d&#039;\u00e9nergie dans les r\u00e9seaux de distribution \u00e0 haut d\u00e9bit.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-oil-and-gas-industry\">Industrie p\u00e9troli\u00e8re et gazi\u00e8re<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Largement utilis\u00e9es pour le contr\u00f4le des d\u00e9bits en amont, en milieu de parcours et en aval, les vannes \u00e0 guillotine traitent les hydrocarbures \u00e0 haute pression et temp\u00e9rature.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-chemical-processing\">Traitement chimique<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les usines chimiques s&#039;appuient sur des vannes \u00e0 guillotine fabriqu\u00e9es \u00e0 partir de mat\u00e9riaux r\u00e9sistants \u00e0 la corrosion pour g\u00e9rer en toute s\u00e9curit\u00e9 les fluides agressifs.<\/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\">Les vannes \u00e0 guillotine r\u00e9gulent le d\u00e9bit d&#039;eau vers les syst\u00e8mes de gicleurs et de bornes d&#039;incendie, r\u00e9pondant ainsi \u00e0 des normes de s\u00e9curit\u00e9 strictes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-power-generation\">Production d&#039;\u00e9lectricit\u00e9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Dans les centrales \u00e9lectriques, les vannes \u00e0 guillotine contr\u00f4lent la vapeur, l&#039;eau de refroidissement et les conduites de carburant, fonctionnant souvent dans des conditions difficiles.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-marine-and-shipbuilding\">Marine et construction navale<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les vannes r\u00e9sistent \u00e0 l\u2019eau de mer corrosive et sont essentielles dans les syst\u00e8mes de cale, de ballast et de refroidissement des navires.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-selection-guide-how-to-choose-the-right-piping-gate-valve\">Guide de s\u00e9lection\u00a0: comment choisir le bon robinet-vanne pour tuyauterie<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La s\u00e9lection du robinet-vanne de tuyauterie id\u00e9al implique l\u2019\u00e9valuation de plusieurs facteurs pour garantir des performances fiables.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-1-material-compatibility\">1. Compatibilit\u00e9 des mat\u00e9riaux<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Choisissez des mat\u00e9riaux de vannes qui r\u00e9sistent \u00e0 la corrosion et \u00e0 l&#039;usure caus\u00e9es par le fluide et l&#039;environnement de fonctionnement :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Fonte et fonte ductile :<\/strong> Commun aux syst\u00e8mes d\u2019eau et d\u2019eaux us\u00e9es.<\/li>\n\n\n\n<li><strong>Laiton et bronze :<\/strong> Convient aux environnements d&#039;eau potable et marins.<\/li>\n\n\n\n<li><strong>Acier inoxydable:<\/strong> Id\u00e9al pour les produits chimiques agressifs et les applications hygi\u00e9niques.<\/li>\n\n\n\n<li><strong>Acier au carbone :<\/strong> Id\u00e9al pour les syst\u00e8mes \u00e0 huile, \u00e0 gaz et \u00e0 haute temp\u00e9rature.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-2-pressure-and-temperature-ratings\">2. Pression et temp\u00e9rature nominales<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e9rifiez que la pression et la temp\u00e9rature nominales de la vanne d\u00e9passent les conditions de fonctionnement maximales du syst\u00e8me. Les vannes sont class\u00e9es en classes telles que PN16 ou ANSI Classe 150.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-valve-size-and-flow-capacity\">3. Taille de la vanne et capacit\u00e9 de d\u00e9bit<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u00e9lectionnez une taille de vanne correspondant au diam\u00e8tre du pipeline pour \u00e9viter les restrictions de d\u00e9bit ou les co\u00fbts excessifs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-4-connection-type\">4. Type de connexion<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00c0 brides :<\/strong> Convient aux gros tuyaux et syst\u00e8mes n\u00e9cessitant un d\u00e9montage fr\u00e9quent.<\/li>\n\n\n\n<li><strong>Filet\u00e9 :<\/strong> Utilis\u00e9 pour les diam\u00e8tres plus petits et les pressions plus faibles.<\/li>\n\n\n\n<li><strong>Soud\u00e9 :<\/strong> Pour des connexions permanentes et de haute int\u00e9grit\u00e9 dans des environnements exigeants.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-5-stem-type-and-operation\">5. Type de tige et fonctionnement<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tige montante :<\/strong> Fournit une indication visuelle de la position de la vanne.<\/li>\n\n\n\n<li><strong>Tige non montante :<\/strong> Permet d&#039;\u00e9conomiser de l&#039;espace vertical ; id\u00e9al pour les installations souterraines ou \u00e9troites.<\/li>\n\n\n\n<li>Le fonctionnement peut \u00eatre manuel ou automatis\u00e9 selon les exigences du syst\u00e8me.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-6-certifications-and-standards\">6. Certifications et normes<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Assurer la conformit\u00e9 aux normes de l&#039;industrie telles que API, ISO, ANSI, NSF ou UL\/FM en fonction des besoins de l&#039;application pour garantir la qualit\u00e9 et la s\u00e9curit\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-why-are-piping-gate-valves-essential\">Pourquoi les vannes \u00e0 guillotine sont-elles essentielles\u00a0?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les robinets-vannes de tuyauterie offrent des avantages in\u00e9gal\u00e9s lorsqu&#039;ils sont utilis\u00e9s correctement. Leurs caract\u00e9ristiques essentielles et leur large disponibilit\u00e9 les rendent indispensables au contr\u00f4le du d\u00e9bit des fluides.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Arr\u00eat fiable :<\/strong> Assure une isolation compl\u00e8te, vitale lors de r\u00e9parations ou d&#039;urgences.<\/li>\n\n\n\n<li><strong>R\u00e9sistance minimale \u00e0 l&#039;\u00e9coulement :<\/strong> La conception \u00e0 al\u00e9sage int\u00e9gral pr\u00e9serve l&#039;efficacit\u00e9 du pipeline.<\/li>\n\n\n\n<li><strong>Rapport co\u00fbt-efficacit\u00e9 :<\/strong> Relativement abordable avec une longue dur\u00e9e de vie.<\/li>\n\n\n\n<li><strong>Versatilit\u00e9:<\/strong> Disponible dans de nombreuses tailles, mat\u00e9riaux et configurations.<\/li>\n\n\n\n<li><strong>Facilit\u00e9 d&#039;entretien :<\/strong> La construction simple r\u00e9duit les temps d\u2019arr\u00eat et les co\u00fbts de r\u00e9paration.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ces faits expliquent pourquoi les vannes \u00e0 guillotine restent parmi les vannes les plus populaires au monde.<\/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<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>Fonction<\/td><td>Isolation marche\/arr\u00eat<\/td><td>Isolation marche\/arr\u00eat<\/td><td>R\u00e9gulation du d\u00e9bit<\/td><td>Marche\/Arr\u00eat et contr\u00f4le<\/td><\/tr><tr><td>R\u00e9sistance \u00e0 l&#039;\u00e9coulement<\/td><td>Tr\u00e8s faible<\/td><td>Tr\u00e8s faible<\/td><td>Haut<\/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>Mod\u00e9r\u00e9<\/td><\/tr><tr><td>Disponibilit\u00e9 des tailles<\/td><td>Large<\/td><td>Mod\u00e9r\u00e9<\/td><td>Limit\u00e9<\/td><td>Large<\/td><\/tr><tr><td>Complexit\u00e9 de la maintenance<\/td><td>Faible<\/td><td>Faible<\/td><td>Mod\u00e9r\u00e9<\/td><td>Faible<\/td><\/tr><tr><td>Besoins d&#039;espace<\/td><td>Grand<\/td><td>Compact<\/td><td>Mod\u00e9r\u00e9<\/td><td>Tr\u00e8s compact<\/td><\/tr><tr><td>Co\u00fbt (grandes tailles)<\/td><td>Mod\u00e9r\u00e9<\/td><td>Haut<\/td><td>Mod\u00e9r\u00e9<\/td><td>Faible<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">La forte capacit\u00e9 d&#039;arr\u00eat et la faible r\u00e9sistance au d\u00e9bit de la vanne \u00e0 guillotine la rendent id\u00e9ale \u00e0 des fins d&#039;isolement, en particulier dans les tuyaux de grand diam\u00e8tre, tandis que d&#039;autres vannes peuvent mieux servir \u00e0 l&#039;\u00e9tranglement ou au fonctionnement rapide.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les vannes \u00e0 guillotine sont des composants essentiels des syst\u00e8mes de tuyauterie n\u00e9cessitant un contr\u00f4le et une isolation fiables du d\u00e9bit. Comprendre leurs caract\u00e9ristiques de base, leurs applications courantes et savoir choisir la vanne adapt\u00e9e permet aux professionnels de maintenir des syst\u00e8mes fluides efficaces et s\u00fbrs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Leur combinaison de durabilit\u00e9, de faible entretien et d&#039;excellente capacit\u00e9 d&#039;arr\u00eat garantit que les vannes \u00e0 guillotine continueront \u00e0 jouer un r\u00f4le cl\u00e9 dans l&#039;approvisionnement en eau, le p\u00e9trole et le gaz, le traitement chimique, la protection contre les incendies et de nombreuses autres industries.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Choisir le bon robinet-vanne de tuyauterie et l&#039;installer correctement peut prolonger la dur\u00e9e de vie et r\u00e9duire les co\u00fbts d&#039;exploitation, ce qui en fait un investissement essentiel pour toute infrastructure de tuyauterie.<\/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>Piping gate valves are critical components in fluid control systems across many industries. Their simple yet effective design allows for efficient on\/off flow control with minimal pressure loss. Understanding the essential facts about piping gate valves helps engineers, technicians, and facility managers make informed decisions regarding their use, installation, and maintenance. This article covers the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":23072,"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":[275,658,660],"class_list":["post-23071","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-brass-ball-valve","tag-brass-gate-valve","tag-piping-gate-valve"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v27.7) - 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