{"id":17471,"date":"2022-06-27T15:07:52","date_gmt":"2022-06-27T15:07:52","guid":{"rendered":"https:\/\/zecovalve.com\/?p=17471"},"modified":"2023-04-04T06:31:36","modified_gmt":"2023-04-04T06:31:36","slug":"development-history-of-butterfly-valve","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/pt\/development-history-of-butterfly-valve.html","title":{"rendered":"Hist\u00f3ria de Desenvolvimento da V\u00e1lvula Borboleta"},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"h-1-concentric-butterfly-valve\">1. V\u00e1lvula borboleta conc\u00eantrica<\/h2>\n\n\n\n<p>As caracter\u00edsticas estruturais da v\u00e1lvula borboleta s\u00e3o que o eixo da haste, o centro da placa borboleta e o centro do corpo est\u00e3o na mesma posi\u00e7\u00e3o. O modelo de utilidade tem as vantagens de estrutura simples e fabrica\u00e7\u00e3o conveniente. As v\u00e1lvulas borboleta revestidas de borracha comuns pertencem a esta categoria. A desvantagem \u00e9 que a placa borboleta e a sede da v\u00e1lvula est\u00e3o sempre em estado de extrus\u00e3o, arranh\u00f5es, grande dist\u00e2ncia de resist\u00eancia e desgaste r\u00e1pido. Para superar os problemas de extrus\u00e3o e arranh\u00f5es e garantir o desempenho da veda\u00e7\u00e3o, a sede da v\u00e1lvula \u00e9 basicamente feita de materiais el\u00e1sticos como borracha ou PTFE, mas tamb\u00e9m \u00e9 limitada pela temperatura de uso. \u00c9 por isso que as v\u00e1lvulas borboleta s\u00e3o tradicionalmente consideradas resistentes a altas temperaturas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-2-single-eccentric-butterfly-valve\">2. V\u00e1lvula borboleta exc\u00eantrica \u00fanica<\/h2>\n\n\n\n<p>Para resolver o problema de extrus\u00e3o do <strong>v\u00e1lvula borboleta conc\u00eantrica<\/strong>\u00a0placa borboleta e sede da v\u00e1lvula, uma \u00fanica v\u00e1lvula borboleta exc\u00eantrica \u00e9 produzida. Sua caracter\u00edstica estrutural \u00e9 que o eixo da haste se desvia do centro da placa borboleta, de modo que a extremidade inferior da placa borboleta n\u00e3o \u00e9 mais o centro de rota\u00e7\u00e3o, e a extrus\u00e3o excessiva da extremidade inferior da placa borboleta e do a sede da v\u00e1lvula \u00e9 dispersa e aliviada. No entanto, devido \u00e0 estrutura de excentricidade \u00fanica em todo o processo da placa borboleta do interruptor da v\u00e1lvula, e o fen\u00f4meno de arranh\u00e3o da sede n\u00e3o desapareceu, na faixa de aplica\u00e7\u00e3o e a v\u00e1lvula borboleta conc\u00eantrica s\u00e3o semelhantes, ent\u00e3o o usu\u00e1rio n\u00e3o \u00e9 muito.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-3-double-offset-butterfly-valve\">3. V\u00e1lvula borboleta de deslocamento duplo<\/h2>\n\n\n\n<p>Com base na v\u00e1lvula borboleta exc\u00eantrica \u00fanica, a v\u00e1lvula borboleta exc\u00eantrica dupla, que \u00e9 amplamente utilizada atualmente, \u00e9 ainda mais aprimorada. E somos um dos fabricantes de v\u00e1lvulas borboleta de duplo deslocamento. A estrutura apresenta que o eixo da haste da v\u00e1lvula se desvia tanto do centro da placa borboleta quanto do centro do corpo. O efeito da dupla excentricidade permite que a placa borboleta se separe da sede da v\u00e1lvula imediatamente ap\u00f3s a v\u00e1lvula ser aberta, eliminando grandemente a extrus\u00e3o desnecess\u00e1ria e arranh\u00f5es entre a placa borboleta e a sede da v\u00e1lvula, reduzindo a resist\u00eancia \u00e0 abertura, reduzindo o desgaste e melhorando o servi\u00e7o vida \u00fatil da sede da v\u00e1lvula. O risco \u00e9 bastante reduzido. Ao mesmo tempo, a v\u00e1lvula borboleta exc\u00eantrica dupla tamb\u00e9m pode usar a sede met\u00e1lica, o que melhora a aplica\u00e7\u00e3o da v\u00e1lvula borboleta no campo de alta temperatura. Mas como o princ\u00edpio de veda\u00e7\u00e3o \u00e9 a estrutura de veda\u00e7\u00e3o de posi\u00e7\u00e3o, ou seja, a superf\u00edcie de veda\u00e7\u00e3o da placa borboleta e da sede est\u00e1 em contato direto, e a deforma\u00e7\u00e3o el\u00e1stica causada pela placa borboleta extrusando a sede produz um efeito de veda\u00e7\u00e3o, requer um alto fechamento posi\u00e7\u00e3o (especialmente sede met\u00e1lica) e capacidade de suporte de baixa press\u00e3o. \u00c9 por isso que as v\u00e1lvulas borboleta s\u00e3o tradicionalmente consideradas resistentes a altas press\u00f5es e vazam muito.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-4-triple-butterfly-valve\">4. V\u00e1lvula borboleta tripla<\/h2>\n\n\n\n<p>Para suportar altas temperaturas, devem ser utilizadas veda\u00e7\u00f5es r\u00edgidas, mas o vazamento \u00e9 grande; para zero vazamento, devem ser usadas veda\u00e7\u00f5es macias, mas n\u00e3o altas temperaturas. Para superar a contradi\u00e7\u00e3o da v\u00e1lvula borboleta de dupla excentricidade, foi realizada a terceira excentricidade da v\u00e1lvula borboleta. A estrutura apresenta que o eixo c\u00f4nico da superf\u00edcie de veda\u00e7\u00e3o da placa borboleta \u00e9 obl\u00edquo ao eixo do cilindro do corpo, enquanto a posi\u00e7\u00e3o do eixo da haste exc\u00eantrica dupla \u00e9 exc\u00eantrica. Ou seja, ap\u00f3s o terceiro exc\u00eantrico, a se\u00e7\u00e3o de veda\u00e7\u00e3o da placa borboleta n\u00e3o \u00e9 mais um c\u00edrculo verdadeiro, mas uma elipse. Portanto, o formato da superf\u00edcie de veda\u00e7\u00e3o \u00e9 assim\u00e9trico, com um lado inclinado em rela\u00e7\u00e3o \u00e0 linha central do corpo e o outro lado paralelo \u00e0 linha central do corpo. E somos um dos fabricantes de v\u00e1lvulas borboleta exc\u00eantricas triplas de alta qualidade.<br><br>A maior caracter\u00edstica da terceira excentricidade \u00e9 que ela altera fundamentalmente a estrutura de veda\u00e7\u00e3o, n\u00e3o a veda\u00e7\u00e3o de posi\u00e7\u00e3o, mas a veda\u00e7\u00e3o de tor\u00e7\u00e3o, ou seja, n\u00e3o contando com a deforma\u00e7\u00e3o el\u00e1stica da sede, mas contando inteiramente com a press\u00e3o da superf\u00edcie de contato da sede para obter efeito de veda\u00e7\u00e3o. Portanto, o problema de vazamento zero de sedes met\u00e1licas \u00e9 resolvido de uma s\u00f3 vez. Como a press\u00e3o da superf\u00edcie de contato \u00e9 proporcional \u00e0 press\u00e3o do meio, a alta press\u00e3o e a resist\u00eancia a altas temperaturas tamb\u00e9m s\u00e3o resolvidas.<\/p>","protected":false},"excerpt":{"rendered":"<p>1. V\u00e1lvula borboleta conc\u00eantrica As caracter\u00edsticas estruturais da v\u00e1lvula borboleta s\u00e3o que o eixo da haste, o centro do\u2026 <a title=\"Hist\u00f3ria de Desenvolvimento da V\u00e1lvula Borboleta\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/pt\/development-history-of-butterfly-valve.html\" aria-label=\"Mais em Hist\u00f3ria do Desenvolvimento da V\u00e1lvula Borboleta\">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":[2210],"tags":[2629,1881],"class_list":["post-17471","post","type-post","status-publish","format-standard","hentry","category-butterfly-valve","tag-api-609-butterfly-valve","tag-butterfly-valve-wikipedia","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":2210,"name":"Butterfly Valve","slug":"butterfly-valve","term_group":0,"term_taxonomy_id":2210,"taxonomy":"category","description":"","parent":0,"count":49,"filter":"raw","cat_ID":2210,"category_count":49,"category_description":"","cat_name":"Butterfly Valve","category_nicename":"butterfly-valve","category_parent":0}],"tag_info":[{"term_id":2629,"name":"API 609 Butterfly Valve","slug":"api-609-butterfly-valve","term_group":0,"term_taxonomy_id":2629,"taxonomy":"post_tag","description":"<!-- wp:heading -->\r\n<h2>What is API 609 Standard?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nAPI 609 is the American design standard for butterfly valves, which is divided into Category A and B.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-what-is-an-api-609-butterfly-valve\">What is an API 609 Butterfly Valve?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA butterfly valve is used to shut off or modulate the flow of a fluid (isolation and regulation). API 609 Centric butterfly valves (soft seated) are preferred to gate and ball valves for low-pressure and non-critical applications as they are cheaper, lighter, and easier to install. Eccentric butterfly valves (double offset and triple offset valves) with metal seats have surged in popularity and compete with globe and ball valves for some applications.\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=\"https:\/\/zecovalve.com\/contact\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET API 609 BUTTERFLY VALVE PRICE<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Types of API 609 Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>API 609 Category A Butterfly Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe Centric or concentric butterfly valve is the primary type of butterfly valve design. In this design of the valve, the stem crosses from the centerline of the disc. Between the pipe bore and the seat, there is the inside diameter boundary. This zero-offset valve is also called resilient-seated because it relies on the adaptability of the seat rubber to seal the flow after closing it efficiently. At around 85\u00b0 during a 90\u00b0 rotation, the disc first comes into connection with the seat in this kind of valve. Concentric butterfly valves are generally used for low-pressure applications.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>API 609 Category B Butterfly Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nIn the eccentric butterfly valve, the stem passes behind the centerline of the disc instead of passing through it. As the stem is positioned behind the centerline, the valve is called a single offset. This design helps to minimize the disc contact with the seal, which increases the service life of the valve. In double-offset butterfly valves or doubly eccentric butterfly valves, the stem is positioned at the backside of the disc with an extra offset. This stem design allows the rotating disc to cover the seat only for one to three degrees. A triple offset butterfly valve is frequently used in more complex applications that have the same design as a double offset butterfly valve. A triple offset butterfly valve is efficient and reduces wear. This valve has metal seats that create a bubble-tight shut-off and make it able to use in higher temperature applications.\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":9,"filter":"raw"},{"term_id":1881,"name":"Butterfly Valve Wikipedia","slug":"butterfly-valve-wikipedia","term_group":0,"term_taxonomy_id":1881,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_49a87c-f7\"} \/-->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-what-is-a-butterfly-valve\">What is a Butterfly Valve?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nButterfly Valve is a valve that can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of Ball Valves, which allows for quick shut-off. Butterfly valves are generally favored because they are lower in cost than other valve designs as well as being lighter in weight, meaning less support is required. The disc is positioned in the center of the pipe, passing through the disc is a rod connected to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position.\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=\"https:\/\/zecovalve.com\/contact\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET BUTTERFLY VALVE PRICE<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Types of Butterfly Valves<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li><strong>Concentric Butterfly Valve<\/strong>\r\n<ul>\r\n \t<li>The most basic design of a butterfly valve is a centric or concentric butterfly valve. The stem passes through the disc\u2019s centerline, and the seat is the inside diameter periphery of the valve body (Figure 4 on the left). This zero-offset valve design is known as resilient-seated because efficient sealing relies on the flexibility of the rubber seat. When closing, the disc first comes into contact with the seat at around 85\u00b0 during a 90\u00b0 rotation. Concentric butterfly valves are suitable for low-pressure ranges.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Double Offset Butterfly Valve<\/strong>\r\n<ul>\r\n \t<li>This popular valve is also known as a high-performance butterfly valve. This valve has two stems offset from the center. This creates a cam action during the application's process.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Triple Offset Butterfly Valve<\/strong>\r\n<ul>\r\n \t<li>Triple Offset Butterfly Valves are essential in applications where a bubble-tight shut-off is required. In some applications, bubble-tight shut-off cannot be achieved using double offset butterfly valves. Some applications do not lend themselves well to traditional butterfly valves, for example, applications involving harsh chemicals or media with small particles prone to clogging valves and pipelines.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Gate Valve vs Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nButterfly valves are comparatively more extensively used in large sizes compared to gate valves. Because butterfly valves open and close quickly and can be frequently operated, they are ideal for applications that require quick opening and closing, especially for emergency shutoffs.\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":11,"filter":"raw"}],"taxonomy_info":{"category":[{"value":2210,"label":"Butterfly Valve"}],"post_tag":[{"value":2629,"label":"API 609 Butterfly Valve"},{"value":1881,"label":"Butterfly Valve Wikipedia"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Development History of Butterfly 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\/development-history-of-butterfly-valve.html\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Development History of Butterfly Valve - ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"1. Concentric butterfly valve The structural characteristics of the butterfly valve are that the axis of the stem, the center of the ... Ler mais\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/pt\/development-history-of-butterfly-valve.html\" \/>\n<meta property=\"og:site_name\" content=\"ZECO Valve\" \/>\n<meta property=\"article:published_time\" content=\"2022-06-27T15:07:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-04-04T06:31:36+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=\"3 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\/development-history-of-butterfly-valve.html#webpage\",\"url\":\"https:\/\/zecovalve.com\/development-history-of-butterfly-valve.html\",\"name\":\"Development History of Butterfly Valve - ZECO Valve\",\"isPartOf\":{\"@id\":\"https:\/\/zecovalve.com\/#website\"},\"datePublished\":\"2022-06-27T15:07:52+00:00\",\"dateModified\":\"2023-04-04T06:31:36+00:00\",\"author\":{\"@id\":\"https:\/\/zecovalve.com\/#\/schema\/person\/f65555145e0ef282ff87649309aba6a3\"},\"breadcrumb\":{\"@id\":\"https:\/\/zecovalve.com\/development-history-of-butterfly-valve.html#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/zecovalve.com\/development-history-of-butterfly-valve.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/zecovalve.com\/development-history-of-butterfly-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\/development-history-of-butterfly-valve.html\",\"url\":\"https:\/\/zecovalve.com\/development-history-of-butterfly-valve.html\",\"name\":\"Development History of Butterfly 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\/17471","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=17471"}],"version-history":[{"count":0,"href":"https:\/\/zecovalve.com\/pt\/wp-json\/wp\/v2\/posts\/17471\/revisions"}],"wp:attachment":[{"href":"https:\/\/zecovalve.com\/pt\/wp-json\/wp\/v2\/media?parent=17471"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zecovalve.com\/pt\/wp-json\/wp\/v2\/categories?post=17471"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zecovalve.com\/pt\/wp-json\/wp\/v2\/tags?post=17471"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}