{"id":16710,"date":"2022-06-23T02:55:43","date_gmt":"2022-06-23T02:55:43","guid":{"rendered":"https:\/\/zecovalve.com\/?p=16710"},"modified":"2023-02-23T06:33:10","modified_gmt":"2023-02-23T06:33:10","slug":"selection-standards-of-cast-steel-globe-valve","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/fr\/selection-standards-of-cast-steel-globe-valve.html","title":{"rendered":"Normes de s\u00e9lection des robinets \u00e0 soupape en acier moul\u00e9"},"content":{"rendered":"<p>Le robinet \u00e0 soupape en acier moul\u00e9 est l&#039;une des vannes les plus utilis\u00e9es. La raison pour laquelle il est populaire est que la friction entre les surfaces d&#039;\u00e9tanch\u00e9it\u00e9 est faible pendant le processus d&#039;ouverture et de fermeture, ce qui est plus durable, la hauteur d&#039;ouverture n&#039;est pas grande, facile \u00e0 fabriquer et pratique \u00e0 entretenir, non seulement adapt\u00e9e aux tailles moyennes et moyennes. basse pression, mais aussi pour haute pression.<\/p>\n\n\n\n\n\n<p>Le principe de fermeture du robinet \u00e0 soupape en acier moul\u00e9 est qu&#039;en fonction de la pression de la tige de vanne, la surface d&#039;\u00e9tanch\u00e9it\u00e9 du disque et la surface d&#039;\u00e9tanch\u00e9it\u00e9 du si\u00e8ge de vanne sont \u00e9troitement ajust\u00e9es pour emp\u00eacher l&#039;\u00e9coulement du fluide.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-structures-of-the-cast-steel-globe-valve\">\u2160. Structures du robinet \u00e0 soupape en fonte d&#039;acier<\/h2>\n\n\n\n<p>La longueur est plus longue que celle du robinet-vanne, la r\u00e9sistance au fluide est grande et la fiabilit\u00e9 de l&#039;\u00e9tanch\u00e9it\u00e9 n&#039;est pas forte pendant un fonctionnement \u00e0 long terme.<\/p>\n\n\n\n<p>En tant que l&#039;une des vannes d&#039;arr\u00eat les plus importantes, la vanne \u00e0 soupape en acier moul\u00e9 joue un r\u00f4le important dans le domaine a\u00e9rospatial. En tant que composant important des \u00e9quipements a\u00e9rospatiaux, le robinet \u00e0 soupape en acier moul\u00e9 remplit les fonctions de transport, de coupure et de r\u00e9glage des fluides, et ses performances d&#039;\u00e9tanch\u00e9it\u00e9 affectent directement le fonctionnement s\u00fbr et fiable des \u00e9quipements a\u00e9rospatiaux.<\/p>\n\n\n\n<p>L&#039;\u00e9tude des facteurs d&#039;influence et des r\u00e8gles des caract\u00e9ristiques d&#039;\u00e9tanch\u00e9it\u00e9 des robinets \u00e0 soupape en acier moul\u00e9 typiques a une importance directrice pour la conception structurelle de la paire d&#039;\u00e9tanch\u00e9it\u00e9 de la vanne, am\u00e9liorant ainsi les performances d&#039;\u00e9tanch\u00e9it\u00e9 et la fiabilit\u00e9 de la vanne.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-the-selection-standard-of-the-cast-steel-globe-valve\">\u2161. Quelle est la norme de s\u00e9lection du robinet \u00e0 soupape en acier moul\u00e9\u00a0?<\/h2>\n\n\n\n<ol class=\"wp-block-list\"><li>Les robinets \u00e0 soupape en acier moul\u00e9 doivent \u00eatre s\u00e9lectionn\u00e9s pour les canalisations ou les appareils \u00e0 haute temp\u00e9rature et haute pression. Par exemple, les robinets \u00e0 soupape en acier moul\u00e9 conviennent aux canalisations \u00e0 haute temp\u00e9rature et haute pression des centrales thermiques et des syst\u00e8mes p\u00e9trochimiques\u00a0;<\/li><li>Sur la canalisation o\u00f9 les exigences de r\u00e9sistance \u00e0 la convection ne sont pas strictes, c&#039;est-\u00e0-dire l&#039;endroit o\u00f9 la perte de charge n&#039;est pas prise en compte\u00a0;<\/li><li>Les robinets \u00e0 soupape en acier moul\u00e9 peuvent \u00eatre s\u00e9lectionn\u00e9s pour les petites vannes, telles que les vannes \u00e0 pointeau, les vannes d&#039;instrument, les vannes d&#039;\u00e9chantillonnage, les vannes manom\u00e9triques, etc.\u00a0;<\/li><li>Il existe un r\u00e9glage du d\u00e9bit ou un r\u00e9glage de la pression, mais les exigences en mati\u00e8re de pr\u00e9cision de r\u00e9glage ne sont pas \u00e9lev\u00e9es et le diam\u00e8tre du pipeline est relativement petit. Par exemple, sur une canalisation d&#039;un diam\u00e8tre nominal \u2264 50\u00a0mm, un robinet \u00e0 soupape ou un papillon des gaz en acier moul\u00e9 doit \u00eatre utilis\u00e9\u00a0;<\/li><li>Pour les projets d&#039;approvisionnement en eau et de chauffage dans la construction urbaine, pour les canalisations de diam\u00e8tre nominal plus petit, des vannes \u00e0 soupape en acier moul\u00e9, des vannes d&#039;\u00e9quilibrage ou des vannes \u00e0 piston peuvent \u00eatre utilis\u00e9es, telles que des canalisations d&#039;un diam\u00e8tre nominal inf\u00e9rieur \u00e0 150\u00a0mm\u00a0;<\/li><li>Applicable aux canalisations moyennes telles que la vapeur inf\u00e9rieure \u00e0 DN200\u00a0;<\/li><li>Ne convient pas aux fluides \u00e0 haute viscosit\u00e9\u00a0;<\/li><li>Ne convient pas aux milieux contenant des particules faciles \u00e0 pr\u00e9cipiter\u00a0;<\/li><li>Il ne convient pas \u00e0 la vanne de ventilation et \u00e0 la vanne du syst\u00e8me \u00e0 faible vide.<\/li><\/ol>\n\n\n\n<!-- Andy:h-related-tags -->\n<h2 id=\"h-related-tags\">Balises associ\u00e9es :<\/h2>\n<!-- \/Andy:h-related-tags -->\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/\">Soupape ZECO<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/difference-between-gate-valves-and-ball-valves.html\/\">Vanne et robinet \u00e0 boisseau sph\u00e9rique<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/advantages-and-disadvantages-of-globe-valves.html\/\">Qu'est-ce qu'un robinet \u00e0 soupape ?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/the-function-of-globe-valve-in-pipeline-system.html\/\">Que sont les vannes \u00e0 soupape\u00a0?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/what-is-an-axial-flow-silent-check-valve.html\/\">Qu'est-ce qu'un clapet anti-retour axial ?<\/a>\n\n<\/div>\n\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/difference-between-gate-valve-and-butterfly-valve.html\/\">Diff\u00e9rence entre la vanne \u00e0 vanne et la vanne papillon<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/china-gate-valves-suppliersnon-rising-stem-gate-valvesks-gate-valves.html\/\">Qu'est-ce qu'un robinet-vanne ?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/tag\/shanghai-pressure-reducing-valve-factory\/\">Usine de soupapes de r\u00e9duction de pression de Shanghai<\/a>\n\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Le robinet \u00e0 soupape en acier moul\u00e9 est l&#039;une des vannes les plus utilis\u00e9es. La raison pour laquelle il est populaire est que la friction\u2026 <a title=\"Normes de s\u00e9lection des robinets \u00e0 soupape en acier moul\u00e9\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/fr\/selection-standards-of-cast-steel-globe-valve.html\" aria-label=\"Plus sur Normes de s\u00e9lection des robinets \u00e0 soupape en fonte d&#039;acier\">Lire plus<\/a><\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1929],"tags":[2419,1805,3671],"class_list":["post-16710","post","type-post","status-publish","format-standard","hentry","category-globe-valve","tag-cast-steel-globe-valve","tag-globe-valve","tag-globe-valve-flow-direction","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":false,"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/fr\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":1929,"name":"Globe Valve","slug":"globe-valve","term_group":0,"term_taxonomy_id":1929,"taxonomy":"category","description":"","parent":0,"count":21,"filter":"raw","cat_ID":1929,"category_count":21,"category_description":"","cat_name":"Globe Valve","category_nicename":"globe-valve","category_parent":0}],"tag_info":[{"term_id":2419,"name":"cast steel globe valve","slug":"cast-steel-globe-valve","term_group":0,"term_taxonomy_id":2419,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":1805,"name":"globe valve","slug":"globe-valve","term_group":0,"term_taxonomy_id":1805,"taxonomy":"post_tag","description":"","parent":0,"count":21,"filter":"raw"},{"term_id":3671,"name":"Globe Valve Flow Direction","slug":"globe-valve-flow-direction","term_group":0,"term_taxonomy_id":3671,"taxonomy":"post_tag","description":"<!-- wp:generateblocks\/button-container {\"uniqueId\":\"f8260ba6\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"e4f70767\",\"hasUrl\":true,\"target\":true,\"backgroundColor\":\"#0366d6\",\"textColor\":\"#ffffff\",\"backgroundColorHover\":\"#222222\",\"textColorHover\":\"#ffffff\",\"paddingTop\":\"15\",\"paddingRight\":\"20\",\"paddingBottom\":\"15\",\"paddingLeft\":\"20\"} -->\r\n<a class=\"gb-button gb-button-e4f70767 gb-button-text\" href=\"mailto:commercial@zecovalve.com\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET GLOBE VALVE FLOW DIRECTION INFORMATION<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_d5c49d-10\"} \/-->\r\n\r\n<!-- wp:heading -->\r\n<h2>Globe Valve Direction of Flow<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<a href=\"https:\/\/zecovalve.com\/product-category\/globe-valve\">Globe valves<\/a> have become one of the most-used valves in companies in almost every industry. And with their ability to start, stop, and throttle fluid flow within a pipeline, it\u2019s easy to see why.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nGenerally speaking, the flow of globe vales is from down to up. It means the medium will go through from the disc downside and then out by the upside. Globe valves usually adopt a compulsory sealed design, so closing the valve offer pressure to the disc against the seat. So if you want to open the valve, the globe valve disc must overcome resistance made by stem and packing friction, medium pressure will offer adverse pressure which helps open the valve. It means you can use less force than the closing valve. So the stem diameter should be larger, to avoid stem bending fault. (depending on the metal material's physical performance of the stem ). In recent years, there are more and more valve pressure seals, the medium through the upper disc to the down disc, so the close valve force is smaller than the open valve force, valve shaft diameter is allowed to be smaller.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nBut some opinions disagree with it, especially for a globe valve with a larger size (for example, a size bigger than DN250), the globe valve usually adopts a valve pressure seal, and considering closing valve force, it is easy to reach the seal performance. But it should take the stabilization of the valve into consideration when the valve stem diameter is smaller than the seat diameter.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nBut how exactly do these valves work and what\u2019s the globe valve direction flow?\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>How do Globe Valves Work?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA globe valve is primarily designed to stop, start and regulate flow. It is comprised of a movable disk and a stationary ring seat in a generally spherical body. The seat of a globe valve is in the middle of and parallel to the pipe, and the opening in the seat is closed off with the disk. When the handle is turned, manually or through an actuator, a disc is lowered or raised by means of the valve stem. When the disc is fully lowered, the fluid flow is shut off. When the disc is fully raised, the fluid flow is at its maximum rate. When the disc is raised to the less than maximum level, the fluid flow is regulated in proportion to the vertical travel of the disc.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-globe-valve-flow-direction\"><strong>Globe Valve Flow Direction<\/strong><\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n-For low-temperature applications, globe and angle valves are ordinarily installed so that pressure under the disk. This promotes easy operation, helps protect the packing, and eliminates a certain amount of erosive action to the seat and disk faces.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n-For high-temperature steam service, globe valves are installed so that pressure is above the disk. Otherwise, the stem will contract upon cooling and tend to lift the disk off the seat ( and leak).\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Flow to Open (FTO)<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nAlso referred to as standard or forward flow, or in globe valves, flow under the seat. Think about when you've controlled the flow of water from a garden hose with your thumb. Your thumb acts like the face of the plug in a globe valve - flow is pushing against your thumb to open a flow path for the water.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Flow to Close (FTC)<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nAlso referred to as reverse flow or in globe valves, flow over the seat. Consider a drain plug in a bathtub. The flow direction is against the back or top of the plug (rather than the face) creating a tendency for the plug to close into the drain.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:image {\"align\":\"center\",\"id\":27401,\"width\":376,\"height\":387,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\r\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img class=\"wp-image-27401\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2023\/02\/GLOBE-VALVE-FTO-FTC.png\" alt=\"\" width=\"376\" height=\"387\" \/><\/figure>\r\n<!-- \/wp:image -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":8,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1929,"label":"Globe Valve"}],"post_tag":[{"value":2419,"label":"cast steel globe valve"},{"value":1805,"label":"globe valve"},{"value":3671,"label":"Globe Valve Flow Direction"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Selection Standards of Cast Steel Globe Valve - ZECO Valve<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zecovalve.com\/fr\/selection-standards-of-cast-steel-globe-valve.html\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Selection Standards of Cast Steel Globe Valve - ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"Cast steel globe valve is one of the most widely used valves. The reason why it is popular is that the friction ... Lire plus\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/fr\/selection-standards-of-cast-steel-globe-valve.html\" \/>\n<meta property=\"og:site_name\" content=\"ZECO Valve\" \/>\n<meta property=\"article:published_time\" content=\"2022-06-23T02:55:43+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-02-23T06:33:10+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\">\n\t<meta name=\"twitter:data1\" content=\"Jerry\">\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\">\n\t<meta name=\"twitter:data2\" content=\"2 minutes\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/zecovalve.com\/#website\",\"url\":\"https:\/\/zecovalve.com\/\",\"name\":\"ZECO Valve\",\"description\":\"Industrial Ball Valve, Gate Valve and Globe Valve Manufacturer\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/zecovalve.com\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/selection-standards-of-cast-steel-globe-valve.html#webpage\",\"url\":\"https:\/\/zecovalve.com\/selection-standards-of-cast-steel-globe-valve.html\",\"name\":\"Selection Standards of Cast Steel Globe Valve - ZECO Valve\",\"isPartOf\":{\"@id\":\"https:\/\/zecovalve.com\/#website\"},\"datePublished\":\"2022-06-23T02:55:43+00:00\",\"dateModified\":\"2023-02-23T06:33:10+00:00\",\"author\":{\"@id\":\"https:\/\/zecovalve.com\/#\/schema\/person\/f65555145e0ef282ff87649309aba6a3\"},\"breadcrumb\":{\"@id\":\"https:\/\/zecovalve.com\/selection-standards-of-cast-steel-globe-valve.html#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/zecovalve.com\/selection-standards-of-cast-steel-globe-valve.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/zecovalve.com\/selection-standards-of-cast-steel-globe-valve.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"item\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/\",\"url\":\"https:\/\/zecovalve.com\/\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"position\":2,\"item\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/selection-standards-of-cast-steel-globe-valve.html\",\"url\":\"https:\/\/zecovalve.com\/selection-standards-of-cast-steel-globe-valve.html\",\"name\":\"Selection Standards of Cast Steel Globe Valve\"}}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/zecovalve.com\/#\/schema\/person\/f65555145e0ef282ff87649309aba6a3\",\"name\":\"Jerry\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","_links":{"self":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/posts\/16710","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/comments?post=16710"}],"version-history":[{"count":0,"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/posts\/16710\/revisions"}],"wp:attachment":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/media?parent=16710"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/categories?post=16710"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/tags?post=16710"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}