{"id":16570,"date":"2022-06-22T05:17:11","date_gmt":"2022-06-22T05:17:11","guid":{"rendered":"https:\/\/zecovalve.com\/?p=16570"},"modified":"2023-02-23T06:33:26","modified_gmt":"2023-02-23T06:33:26","slug":"introduction-of-globe-valve","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/pt\/introduction-of-globe-valve.html","title":{"rendered":"Introdu\u00e7\u00e3o da v\u00e1lvula globo"},"content":{"rendered":"<p>A v\u00e1lvula globo, tamb\u00e9m chamada de v\u00e1lvula de bloqueio, \u00e9 uma das v\u00e1lvulas mais utilizadas. \u00c9 popular devido ao pequeno atrito entre as superf\u00edcies de veda\u00e7\u00e3o no processo de abertura e fechamento, relativamente dur\u00e1vel, pequena altura de abertura, f\u00e1cil fabrica\u00e7\u00e3o e manuten\u00e7\u00e3o. N\u00e3o \u00e9 adequado apenas para m\u00e9dia e baixa press\u00e3o, mas tamb\u00e9m para alta press\u00e3o.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-working-principle-of-globe-valve\">Princ\u00edpio de funcionamento da v\u00e1lvula globo<\/h2>\n\n\n\n<p>Geralmente, a haste da v\u00e1lvula globo \u00e9 girada e levantada, e o volante \u00e9 fixado na parte superior da haste. Quando o volante \u00e9 girado no sentido hor\u00e1rio, a rosca da haste \u00e9 aparafusada, a superf\u00edcie de veda\u00e7\u00e3o do disco fica em contato pr\u00f3ximo com a sede da v\u00e1lvula e a v\u00e1lvula globo \u00e9 fechada. Quando o volante \u00e9 girado no sentido anti-hor\u00e1rio, a rosca da haste \u00e9 aparafusada, a superf\u00edcie de veda\u00e7\u00e3o do disco e da sede da v\u00e1lvula \u00e9 separada e a v\u00e1lvula globo \u00e9 aberta.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Caracter\u00edsticas da v\u00e1lvula globo<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Vantagens<\/strong> da v\u00e1lvula globo<\/h3>\n\n\n\n<p>a. Em compara\u00e7\u00e3o com o\u00a0<a href=\"https:\/\/zecovalve.com\/pt\/products\/gate-valve\/\">v\u00e1lvula de gaveta<\/a>, a v\u00e1lvula globo tem uma estrutura simples, com apenas uma superf\u00edcie de veda\u00e7\u00e3o no corpo da v\u00e1lvula e no disco. A \u00e1rea de veda\u00e7\u00e3o \u00e9 pequena, n\u00e3o s\u00e3o utilizados materiais caros, com baixo custo, por isso o processo de fabrica\u00e7\u00e3o \u00e9 relativamente bom e simples de manter.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Desvantagens<\/strong> da v\u00e1lvula globo<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>a. O comprimento da estrutura \u00e9 grande.<\/li><li>b.O torque de abertura e fechamento \u00e9 grande e leva tempo para abrir e fechar. Quando a v\u00e1lvula \u00e9 fechada, o sentido de movimento do disco \u00e9 oposto ao sentido de a\u00e7\u00e3o da press\u00e3o do meio, e a for\u00e7a do meio deve ser superada, portanto o torque de abertura e fechamento \u00e9 grande.<\/li><li>c.A resist\u00eancia ao fluxo \u00e9 grande. O canal m\u00e9dio no corpo da v\u00e1lvula \u00e9 tortuoso, a resist\u00eancia ao fluxo \u00e9 grande e o consumo de energia \u00e9 grande. No dispositivo hidr\u00e1ulico, a perda de press\u00e3o \u00e9 particularmente evidente. Entre todos os tipos de v\u00e1lvulas de bloqueio, a v\u00e1lvula de bloqueio tem a maior resist\u00eancia ao fluxo.<\/li><li>d. A dire\u00e7\u00e3o do fluxo do meio \u00e9 limitada. Quando o meio flui atrav\u00e9s da v\u00e1lvula globo, ele s\u00f3 pode fluir de baixo para cima ou de cima para baixo no canal da sede da v\u00e1lvula, de modo que o meio s\u00f3 pode fluir em uma dire\u00e7\u00e3o e n\u00e3o pode alterar a dire\u00e7\u00e3o do fluxo.<\/li><li>e.Quando a v\u00e1lvula est\u00e1 fechada, part\u00edculas s\u00f3lidas no meio fluido podem ficar presas entre as superf\u00edcies de veda\u00e7\u00e3o<\/li><li>f. Instala\u00e7\u00e3o inconveniente.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-operation-characteristics-of-globe-valve\"><strong>Caracter\u00edsticas de opera\u00e7\u00e3o<\/strong> da v\u00e1lvula globo<\/h2>\n\n\n\n<p>A forma de veda\u00e7\u00e3o da v\u00e1lvula globo \u00e9 a veda\u00e7\u00e3o for\u00e7ada. Quando a v\u00e1lvula est\u00e1 fechada, deve ser aplicada for\u00e7a suficiente ao disco da v\u00e1lvula para obter o efeito de veda\u00e7\u00e3o, e a veda\u00e7\u00e3o s\u00f3 pode ser realizada quando a press\u00e3o espec\u00edfica for suficiente.<\/p>\n\n\n\n<p>A for\u00e7a de veda\u00e7\u00e3o e a press\u00e3o m\u00e9dia est\u00e3o no mesmo eixo. Quando o meio entra pela parte inferior do disco da v\u00e1lvula (entrada baixa e sa\u00edda alta), o torque de fechamento da v\u00e1lvula \u00e9 maior que o torque de abertura devido \u00e0 dire\u00e7\u00e3o oposta da press\u00e3o m\u00e9dia e da for\u00e7a de veda\u00e7\u00e3o, e ao estresse m\u00e1ximo na haste da v\u00e1lvula est\u00e1 a tens\u00e3o de press\u00e3o, portanto deve haver resist\u00eancia e rigidez suficientes, caso contr\u00e1rio a haste da v\u00e1lvula ser\u00e1 deformada.<\/p>\n\n\n\n<p>Portanto, quando o tamanho da v\u00e1lvula globo \u00e9 maior que DN150 (NPS 6), a fim de reduzir o torque operacional da v\u00e1lvula e reduzir o di\u00e2metro da haste da v\u00e1lvula, o meio geralmente flui para a parte superior do disco da v\u00e1lvula para entrar (alta entrada e baixa sa\u00edda). Neste momento, a dire\u00e7\u00e3o da press\u00e3o m\u00e9dia e da for\u00e7a de veda\u00e7\u00e3o \u00e9 a mesma. Sob a a\u00e7\u00e3o da press\u00e3o m\u00e9dia, a v\u00e1lvula pode ser vedada mais facilmente. O torque de fechamento diminui e o torque de abertura aumenta, a tens\u00e3o m\u00e1xima na haste da v\u00e1lvula \u00e9 a tens\u00e3o de tra\u00e7\u00e3o e o di\u00e2metro da haste da v\u00e1lvula pode ser reduzido de acordo.<\/p>\n\n\n\n<p>Quando a v\u00e1lvula globo \u00e9 aberta, quando a altura de abertura do disco atinge 25-30% do tamanho nominal da v\u00e1lvula, o fluxo atingiu o m\u00e1ximo, ou seja, a v\u00e1lvula atingiu a posi\u00e7\u00e3o totalmente aberta, portanto a posi\u00e7\u00e3o totalmente aberta da v\u00e1lvula globo deve ser determinada de acordo com o curso do disco.<\/p>\n\n\n\n<p>Quando a v\u00e1lvula globo \u00e9 fechada e reaberta, \u00e9 semelhante \u00e0 v\u00e1lvula gaveta de veda\u00e7\u00e3o for\u00e7ada, ou seja, ap\u00f3s o fechamento da v\u00e1lvula, deve ser aplicada for\u00e7a operacional suficiente na superf\u00edcie de veda\u00e7\u00e3o para obter o efeito de veda\u00e7\u00e3o. Portanto, o torque de fechamento da v\u00e1lvula deve ser aumentado para o valor especificado com base no torque operacional. Quando a v\u00e1lvula \u00e9 aberta novamente, o torque de abertura da v\u00e1lvula \u00e9 geralmente maior que o torque de fechamento devido \u00e0 influ\u00eancia do atrito est\u00e1tico, expans\u00e3o t\u00e9rmica e outros fatores, assim, a v\u00e1lvula pode ser aberta de forma confi\u00e1vel, e isso deve ser considerado no projeto.<\/p>\n\n\n\n<p>Para reduzir a press\u00e3o de alto impacto formada na v\u00e1lvula de abertura e fechamento, a v\u00e1lvula globo deve ser operada lentamente, de certa forma, deve ter uma taxa de varia\u00e7\u00e3o consistente com a vaz\u00e3o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">O torque operacional da v\u00e1lvula globo possui as seguintes caracter\u00edsticas:<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u201cAberturas de entrada baixa e sa\u00edda alta\u201d<\/strong><\/h3>\n\n\n\n<p>Quando \u00e9 adotada \u201centrada baixa e sa\u00edda alta\u201d, a v\u00e1lvula \u00e9 fechada a partir da posi\u00e7\u00e3o totalmente aberta. A resist\u00eancia que a for\u00e7a operacional precisa superar \u00e9 a resist\u00eancia ao atrito da haste e da gaxeta e o empuxo causado pela press\u00e3o m\u00e9dia na se\u00e7\u00e3o do disco (axial). Com a queda do disco da v\u00e1lvula, forma-se a diferen\u00e7a de press\u00e3o entre a parte frontal e traseira do disco da v\u00e1lvula, o que evita que o disco da v\u00e1lvula caia, e a resist\u00eancia aumentar\u00e1 rapidamente com a queda do disco da v\u00e1lvula. Com a v\u00e1lvula completamente fechada, exerce uma for\u00e7a de veda\u00e7\u00e3o for\u00e7ada aplicada pela haste da v\u00e1lvula, e a diferen\u00e7a de press\u00e3o entre a parte frontal e traseira do disco da v\u00e1lvula atinge a press\u00e3o m\u00e1xima de trabalho do meio, neste momento, a haste da v\u00e1lvula suporta o m\u00e1ximo torque de fechamento.<\/p>\n\n\n\n<p>Durante a abertura da v\u00e1lvula, press\u00e3o m\u00e9dia ou impulso causado pela diferen\u00e7a de press\u00e3o entre a frente e a parte traseira do disco \u00e9 igual \u00e0 dire\u00e7\u00e3o de fechamento da v\u00e1lvula. Por\u00e9m, deve-se observar que no momento da abertura, o torque operacional de abertura pode exceder o torque de fechamento devido ao grande torque de atrito est\u00e1tico entre as superf\u00edcies de veda\u00e7\u00e3o.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u201cAberturas de entrada altas e sa\u00eddas baixas\u201d<\/strong><\/h3>\n\n\n\n<p>Quando \u00e9 adotada \u201centrada alta e sa\u00edda baixa\u201d, a v\u00e1lvula \u00e9 fechada a partir da posi\u00e7\u00e3o totalmente aberta. As duas for\u00e7as acima ainda s\u00e3o necess\u00e1rias para superar a for\u00e7a operacional. Com a diminui\u00e7\u00e3o do disco da v\u00e1lvula, a diferen\u00e7a de press\u00e3o antes e depois do disco da v\u00e1lvula conduz ao fechamento da v\u00e1lvula antes de ela ser fechada.<\/p>\n\n\n\n<p>Quando a v\u00e1lvula \u00e9 aberta, a situa\u00e7\u00e3o \u00e9 exatamente oposta. O empuxo causado pela press\u00e3o m\u00e9dia e a diferen\u00e7a de press\u00e3o entre a parte frontal e traseira do disco \u00e9 oposto ao sentido de abertura da v\u00e1lvula, portanto o torque operacional necess\u00e1rio para o processo de abertura da v\u00e1lvula \u00e9 muito maior que o torque de fechamento.<\/p>\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\/pt\/\">V\u00e1lvula ZECO<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/introduction-of-epdm-nbr-butterfly-valve-seat-industrial-valve-information-news-zeco-valve.html\/\">V\u00e1lvula borboleta NBR<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/difference-between-gate-valves-and-ball-valves.html\/\">V\u00e1lvula de gaveta vs V\u00e1lvula de esfera<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/gate-valve-problems.html\/\">Reparo de v\u00e1lvula gaveta<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/advantages-and-disadvantages-of-globe-valves.html\/\">O que \u00e9 uma v\u00e1lvula de globo?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/the-function-of-globe-valve-in-pipeline-system.html\/\">O que s\u00e3o v\u00e1lvulas globo?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/produto\/manual-gate-valve\/\">V\u00e1lvula de gaveta de acionamento manual Fabricante<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/what-is-an-axial-flow-silent-check-valve.html\/\">O que \u00e9 uma v\u00e1lvula de reten\u00e7\u00e3o axial<\/a>\n\n<\/div>\n\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/difference-between-gate-valve-and-butterfly-valve.html\/\">Diferen\u00e7a entre a v\u00e1lvula de gaveta e a v\u00e1lvula de borboleta<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/china-gate-valves-suppliersnon-rising-stem-gate-valvesks-gate-valves.html\/\">O que \u00e9 uma v\u00e1lvula de gaveta?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/tag\/shanghai-pressure-reducing-valve-factory\/\">F\u00e1brica de v\u00e1lvulas redutoras de press\u00e3o de Xangai<\/a>\n\n<\/div>","protected":false},"excerpt":{"rendered":"<p>A v\u00e1lvula globo, tamb\u00e9m designada por v\u00e1lvula de paragem, \u00e9 uma das v\u00e1lvulas mais utilizadas. \u00c9 popular devido \u00e0 pequena fric\u00e7\u00e3o ... <a title=\"Introdu\u00e7\u00e3o da v\u00e1lvula globo\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/pt\/introduction-of-globe-valve.html\" aria-label=\"Mais em Introdu\u00e7\u00e3o da V\u00e1lvula Globo\">Ler mais<\/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":[1894,1811,1973,1812,2320,1805,3671,2321],"class_list":["post-16570","post","type-post","status-publish","format-standard","hentry","category-globe-valve","tag-advantages-and-disadvantages-of-globe-valves","tag-advantages-of-globe-valve","tag-china-angle-globe-valve","tag-disadvantages-of-globe-valve","tag-features-of-globe-valve","tag-globe-valve","tag-globe-valve-flow-direction","tag-working-principle-of-globe-valve","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\/pt\/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":1894,"name":"Advantages and Disadvantages of Globe Valves","slug":"advantages-and-disadvantages-of-globe-valves","term_group":0,"term_taxonomy_id":1894,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_1f2967-98\"} \/-->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA Globe valve is a linear motion valve and is primarily designed to stop, start and regulate flow. The disk of a Globe valve can be totally removed from the flow path or it can completely close the flow path.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:generateblocks\/button-container {\"uniqueId\":\"6d8495a3\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"3d442e11\",\"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-3d442e11 gb-button-text\" href=\"mailto:commercial@zecovalve.com\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET ADVANTAGES AND DISADVANTAGES OF GLOBE VALVES INFORMATION <\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-advantages-and-disadvantages-of-globe-valves\">Advantages and disadvantages of Globe valves<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>ADVANTAGES<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Good shutoff capability<\/li>\r\n \t<li>Moderate to good throttling capability<\/li>\r\n \t<li>Shorter stroke (compared to a gate valve)<\/li>\r\n \t<li>Available in tee, wye, and angle patterns, each offering unique capabilities<\/li>\r\n \t<li>Easy to machine or resurface the seats<\/li>\r\n \t<li>With the disc not attached to the stem, the valve can be used as a stop-check valve<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>DISADVANTAGES<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Higher pressure drop (compared to a gate valve)<\/li>\r\n \t<li>Requires greater force or a larger actuator to seat the valve (with pressure under the seat)<\/li>\r\n \t<li>Throttling flow under the seat and shutoff flow over the seat<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Flow direction of Globe Valves<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nFor applications with low temperatures, Globe valves are normally installed so that the pressure is under the disc. This contributes to an easy operation and helps protect the packing.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nFor applications with high-temperature steam service, Globe valves are installed so that the pressure is above the disk. Otherwise, the stem will contract upon cooling and tend to lift the disk off the seat.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Typical Applications of Globe valves<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe following are some of the typical applications of Globe valves..\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Cooling water systems where flow needs to be regulated<\/li>\r\n \t<li>Fuel oil system where flow is regulated and leak tightness is of importance<\/li>\r\n \t<li>High-point vents and low-point drains when leak tightness and safety are major considerations<\/li>\r\n \t<li>Feedwater, chemical feed, condenser air extraction, and extraction drain systems<\/li>\r\n \t<li>Boiler vents and drains, main steam vents and drains, and heater drains<\/li>\r\n \t<li>Turbine seals and drains<\/li>\r\n \t<li>Turbine lube oil system and others<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->","parent":0,"count":6,"filter":"raw"},{"term_id":1811,"name":"advantages of globe valve","slug":"advantages-of-globe-valve","term_group":0,"term_taxonomy_id":1811,"taxonomy":"post_tag","description":"","parent":0,"count":5,"filter":"raw"},{"term_id":1973,"name":"China Angle Globe Valve","slug":"china-angle-globe-valve","term_group":0,"term_taxonomy_id":1973,"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 ANGLE GLOBE VALVE MANUFACTURERS<\/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><strong><a href=\"https:\/\/zecovalve.com\/product-category\/globe-valve\">China Angle Globe Valve<\/a><\/strong><\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe angle globe valve is a modification of the basic standard pattern globe valve where the ends are at an angle of 90 degrees.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA variation on the straight globe valve, angle globe valves\u2019 have a design that encourages the media to flow at a 90\u00b0 angle, thus generating a lesser pressure drop. Preferred for regulating liquid or air media, angle globe valves are also ideal for applications that require pulsating flow due to their superior slugging effect capability.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nWith over 20 years of production expertise and employing the latest in manufacturing technology, ZECO is your supplier of choice for quality angle globe valves. Production is tailor-made to your specific needs, with 5 production lines completing large-volume orders within 30 days.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Features of China Angle Globe Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul><!-- wp:list-item -->\r\n \t<li>Disc shape has a cone, needle, ball, and parabolic type, which can be used to adjust the flow<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>By improving the structure design and selecting a reasonable packing structure and a qualified packing supplier, the valve can meet the requirements of ISO 15848 Fe class a sealing test<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Configured according to the requirements of API 600, or according to the requirements of customers<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Rising pole structure, valve switch position at a glance<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>The valve meets NACE standard and API Spec 6fa fire test certification<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Short stroke, suitable for frequent opening applications<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Angle Globe Valve Specification List<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:table {\"className\":\"is-style-stripes\"} -->\r\n<figure class=\"wp-block-table is-style-stripes\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<th>Size<\/th>\r\n<th>50NB \u2014 600NB<\/th>\r\n<\/tr>\r\n<tr>\r\n<td>Pressure<\/td>\r\n<td>150LB-2500LB<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Temperature<\/td>\r\n<td>0 Deg C - 1200 Deg C.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Body<\/td>\r\n<td>Cast Steel Gr WCB, CF8, CF8M, Forged Steel Gr A105, F304, F22<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Seat<\/td>\r\n<td>Integral to Body, Soft, Optional.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Gate<\/td>\r\n<td>AISI SS 304,316,316L,317,317L<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Screw Spindle<\/td>\r\n<td>AISI SS 410,304,316.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Gland Follower<\/td>\r\n<td>Cast Iron, Cast steel, Ductile Iron, CF8, CF8M.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Hand Wheel<\/td>\r\n<td>Cast Iron, Cast steel, Ductile Iron<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Gland Packing<\/td>\r\n<td>PTFE, PTFE Impregnated<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Ends<\/td>\r\n<td>RF, RTJ, BW, SW, NPT<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Port<\/td>\r\n<td>STANDARD [Round], Optional V Port, Diamond Port,<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n<!-- \/wp:table -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Angle Globe Valve Manufacturers<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nZECO Valve is a leading manufacturer of different types of Globe valves. The globe valves that we offer to our clients are the angle globe valve, ANSI globe valve, API globe valve, BS globe valve Carbon steel below seal globe valve, forged steel globe valve, DIN globe valve, pressure seal globe valve, SS304 below seal globe valve. Being a leading globe valve supplier in Germany and Italy, we even customize the framework of the valves as per the requirements of the customers.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nOur globe valves are also designed to have Nominal Pressure ranging from PN 16 \u2013 PN 100. Class: 150 to 2500\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nWe deliver our globe valves to suit the ever-emerging requirements of our different customers. Also, our products meet all international standards such as DIN, API, ASME, JIS, and AWWA to give them the best experience of our valves\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":5,"filter":"raw"},{"term_id":1812,"name":"disadvantages of globe valve","slug":"disadvantages-of-globe-valve","term_group":0,"term_taxonomy_id":1812,"taxonomy":"post_tag","description":"","parent":0,"count":4,"filter":"raw"},{"term_id":2320,"name":"features of globe valve","slug":"features-of-globe-valve","term_group":0,"term_taxonomy_id":2320,"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"},{"term_id":2321,"name":"working principle of globe valve","slug":"working-principle-of-globe-valve","term_group":0,"term_taxonomy_id":2321,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1929,"label":"Globe Valve"}],"post_tag":[{"value":1894,"label":"Advantages and Disadvantages of Globe Valves"},{"value":1811,"label":"advantages of globe valve"},{"value":1973,"label":"China Angle Globe Valve"},{"value":1812,"label":"disadvantages of globe valve"},{"value":2320,"label":"features of globe valve"},{"value":1805,"label":"globe valve"},{"value":3671,"label":"Globe Valve Flow Direction"},{"value":2321,"label":"working principle of globe valve"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Introduction of 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\/pt\/introduction-of-globe-valve.html\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Introduction of Globe Valve - ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"Globe valve, also called stop valve, is one of the most widely used valves. It is popular due to the small friction ... Ler mais\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/pt\/introduction-of-globe-valve.html\" \/>\n<meta property=\"og:site_name\" content=\"ZECO Valve\" \/>\n<meta property=\"article:published_time\" content=\"2022-06-22T05:17:11+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-02-23T06:33:26+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=\"Tempo estimado de leitura\">\n\t<meta name=\"twitter:data2\" content=\"5 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\":\"pt-PT\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/introduction-of-globe-valve.html#webpage\",\"url\":\"https:\/\/zecovalve.com\/introduction-of-globe-valve.html\",\"name\":\"Introduction of Globe Valve - ZECO Valve\",\"isPartOf\":{\"@id\":\"https:\/\/zecovalve.com\/#website\"},\"datePublished\":\"2022-06-22T05:17:11+00:00\",\"dateModified\":\"2023-02-23T06:33:26+00:00\",\"author\":{\"@id\":\"https:\/\/zecovalve.com\/#\/schema\/person\/f65555145e0ef282ff87649309aba6a3\"},\"breadcrumb\":{\"@id\":\"https:\/\/zecovalve.com\/introduction-of-globe-valve.html#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/zecovalve.com\/introduction-of-globe-valve.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/zecovalve.com\/introduction-of-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\/introduction-of-globe-valve.html\",\"url\":\"https:\/\/zecovalve.com\/introduction-of-globe-valve.html\",\"name\":\"Introduction of 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\/pt\/wp-json\/wp\/v2\/posts\/16570","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zecovalve.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zecovalve.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/pt\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/pt\/wp-json\/wp\/v2\/comments?post=16570"}],"version-history":[{"count":0,"href":"https:\/\/zecovalve.com\/pt\/wp-json\/wp\/v2\/posts\/16570\/revisions"}],"wp:attachment":[{"href":"https:\/\/zecovalve.com\/pt\/wp-json\/wp\/v2\/media?parent=16570"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zecovalve.com\/pt\/wp-json\/wp\/v2\/categories?post=16570"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zecovalve.com\/pt\/wp-json\/wp\/v2\/tags?post=16570"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}