{"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\/es\/selection-standards-of-cast-steel-globe-valve.html","title":{"rendered":"Normas de selecci\u00f3n de v\u00e1lvulas de globo de acero fundido"},"content":{"rendered":"<p>La v\u00e1lvula de globo de acero fundido es una de las v\u00e1lvulas m\u00e1s utilizadas. La raz\u00f3n por la que es popular es que la fricci\u00f3n entre las superficies de sellado es peque\u00f1a durante el proceso de apertura y cierre, lo cual es m\u00e1s duradero, la altura de apertura no es grande, es f\u00e1cil de fabricar y conveniente de mantener, no solo es adecuado para medianas y baja presi\u00f3n, pero tambi\u00e9n para alta presi\u00f3n.<\/p>\n\n\n\n\n\n<p>El principio de cierre de la v\u00e1lvula de globo de acero fundido es que, dependiendo de la presi\u00f3n del v\u00e1stago de la v\u00e1lvula, la superficie de sellado del disco y la superficie de sellado del asiento de la v\u00e1lvula est\u00e1n estrechamente ajustadas para evitar el flujo del medio.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-structures-of-the-cast-steel-globe-valve\">\u2160. Estructuras de la v\u00e1lvula de globo de acero fundido.<\/h2>\n\n\n\n<p>La longitud es m\u00e1s larga que la de la v\u00e1lvula de compuerta, la resistencia al fluido es grande y la confiabilidad del sellado no es fuerte durante el funcionamiento a largo plazo.<\/p>\n\n\n\n<p>Como una de las v\u00e1lvulas de cierre m\u00e1s importantes, la v\u00e1lvula de globo de acero fundido desempe\u00f1a un papel importante en el campo aeroespacial. Como componente importante de los equipos aeroespaciales, la v\u00e1lvula de globo de acero fundido realiza las funciones de transporte, corte y ajuste del medio, y su rendimiento de sellado afecta directamente la operaci\u00f3n segura y confiable de los equipos aeroespaciales.<\/p>\n\n\n\n<p>El estudio de los factores que influyen y las reglas de las caracter\u00edsticas de sellado de las v\u00e1lvulas de globo de acero fundido t\u00edpicas tiene una importancia orientadora para el dise\u00f1o estructural del par de sellado de la v\u00e1lvula, mejorando as\u00ed el rendimiento de sellado y la confiabilidad de la v\u00e1lvula.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-the-selection-standard-of-the-cast-steel-globe-valve\">\u2161. \u00bfCu\u00e1l es el est\u00e1ndar de selecci\u00f3n de la v\u00e1lvula de globo de acero fundido?<\/h2>\n\n\n\n<ol class=\"wp-block-list\"><li>Se deben seleccionar v\u00e1lvulas de globo de acero fundido para tuber\u00edas o dispositivos de alta temperatura y medio de alta presi\u00f3n. Por ejemplo, las v\u00e1lvulas de globo de acero fundido son adecuadas para tuber\u00edas de alta temperatura y alta presi\u00f3n de centrales t\u00e9rmicas y sistemas petroqu\u00edmicos;<\/li><li>En tuber\u00edas donde los requisitos de resistencia a la convecci\u00f3n no son estrictos, es decir, el lugar donde no se considera la p\u00e9rdida de presi\u00f3n;<\/li><li>Se pueden seleccionar v\u00e1lvulas de globo de acero fundido para v\u00e1lvulas peque\u00f1as, como v\u00e1lvulas de aguja, v\u00e1lvulas de instrumentos, v\u00e1lvulas de muestreo, v\u00e1lvulas de man\u00f3metro, etc.;<\/li><li>Existe ajuste de flujo o ajuste de presi\u00f3n, pero los requisitos de precisi\u00f3n del ajuste no son altos y el di\u00e1metro de la tuber\u00eda es relativamente peque\u00f1o. Por ejemplo, en tuber\u00edas con un di\u00e1metro nominal \u2264 50 mm, se debe utilizar una v\u00e1lvula de globo de acero fundido o una v\u00e1lvula de mariposa;<\/li><li>Para proyectos de suministro de agua y calefacci\u00f3n en la construcci\u00f3n urbana, para tuber\u00edas con di\u00e1metros nominales m\u00e1s peque\u00f1os, se pueden aplicar v\u00e1lvulas de globo, v\u00e1lvulas de equilibrio o v\u00e1lvulas de \u00e9mbolo de acero fundido, como tuber\u00edas con un di\u00e1metro nominal inferior a 150 mm;<\/li><li>Aplicable a tuber\u00edas medianas como vapor por debajo de DN200;<\/li><li>No apto para medios con alta viscosidad;<\/li><li>No apto para medios que contengan part\u00edculas f\u00e1ciles de precipitar;<\/li><li>No es adecuado para v\u00e1lvulas de ventilaci\u00f3n ni v\u00e1lvulas de sistemas de bajo vac\u00edo.<\/li><\/ol>\n\n\n\n<!-- Andy:h-related-tags -->\n<h2 id=\"h-related-tags\">Etiquetas relacionadas :<\/h2>\n<!-- \/Andy:h-related-tags -->\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/\">V\u00e1lvula ZECO<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/difference-between-gate-valves-and-ball-valves.html\/\">V\u00e1lvula de compuerta frente a v\u00e1lvula de bola<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/advantages-and-disadvantages-of-globe-valves.html\/\">\u00bfQu\u00e9 es una v\u00e1lvula de globo?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/the-function-of-globe-valve-in-pipeline-system.html\/\">\u00bfQu\u00e9 son las v\u00e1lvulas de globo?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/what-is-an-axial-flow-silent-check-valve.html\/\">Qu\u00e9 es una v\u00e1lvula antirretorno axial<\/a>\n\n<\/div>\n\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/difference-between-gate-valve-and-butterfly-valve.html\/\">Diferencia entre v\u00e1lvula de compuerta y v\u00e1lvula de mariposa<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/china-gate-valves-suppliersnon-rising-stem-gate-valvesks-gate-valves.html\/\">\u00bfQu\u00e9 es una v\u00e1lvula de compuerta?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/tag\/shanghai-pressure-reducing-valve-factory\/\">F\u00e1brica de v\u00e1lvulas reductoras de presi\u00f3n de Shanghai<\/a>\n\n<\/div>","protected":false},"excerpt":{"rendered":"<p>La v\u00e1lvula de globo de acero fundido es una de las m\u00e1s utilizadas. La raz\u00f3n por la que es popular es que la fricci\u00f3n ... <a title=\"Normas de selecci\u00f3n de v\u00e1lvulas de globo de acero fundido\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/es\/selection-standards-of-cast-steel-globe-valve.html\" aria-label=\"M\u00e1s en Est\u00e1ndares de selecci\u00f3n de v\u00e1lvulas de globo de acero fundido\">Leer m\u00e1s<\/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\/es\/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\/es\/selection-standards-of-cast-steel-globe-valve.html\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\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 ... Leer m\u00e1s\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/es\/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=\"Escrito por\">\n\t<meta name=\"twitter:data1\" content=\"Jerry\">\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\">\n\t<meta name=\"twitter:data2\" content=\"2 minutos\">\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\":\"es\"},{\"@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\":\"es\",\"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\/es\/wp-json\/wp\/v2\/posts\/16710","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/comments?post=16710"}],"version-history":[{"count":0,"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/posts\/16710\/revisions"}],"wp:attachment":[{"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/media?parent=16710"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/categories?post=16710"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/tags?post=16710"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}