{"id":17481,"date":"2022-06-27T15:34:49","date_gmt":"2022-06-27T15:34:49","guid":{"rendered":"https:\/\/zecovalve.com\/?p=17481"},"modified":"2022-08-08T03:30:07","modified_gmt":"2022-08-08T03:30:07","slug":"notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/pt\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html","title":{"rendered":"Notas sobre a instala\u00e7\u00e3o e utiliza\u00e7\u00e3o da v\u00e1lvula de borboleta exc\u00eantrica dupla da China"},"content":{"rendered":"<ul class=\"wp-block-list\"><li>1.Verifique se as especifica\u00e7\u00f5es da v\u00e1lvula borboleta, press\u00e3o, temperatura e resist\u00eancia \u00e0 corros\u00e3o atendem aos requisitos antes da instala\u00e7\u00e3o. As pe\u00e7as devem ser verificadas quanto a danos ou afrouxamentos.<\/li><li>2. Muitas v\u00e1lvulas borboleta podem ser instaladas em tubula\u00e7\u00f5es de qualquer \u00e2ngulo, sendo apropriado fech\u00e1-las e instal\u00e1-las; ao soldar flanges de tubula\u00e7\u00e3o, a abertura de veda\u00e7\u00e3o da v\u00e1lvula deve ser bloqueada por uma placa para evitar contus\u00e3o da superf\u00edcie de veda\u00e7\u00e3o por part\u00edculas e artigos diversos. Ap\u00f3s a soldagem, remova a v\u00e1lvula, limpe a superf\u00edcie de veda\u00e7\u00e3o da v\u00e1lvula e a cavidade interna da tubula\u00e7\u00e3o e, em seguida, instale a v\u00e1lvula fixa.<\/li><li>3. Deve-se prestar aten\u00e7\u00e3o \u00e0 dire\u00e7\u00e3o do mancal de press\u00e3o da v\u00e1lvula quando ela for instalada.<\/li><li>4. Antes da instala\u00e7\u00e3o, a superf\u00edcie de veda\u00e7\u00e3o (superf\u00edcie de veda\u00e7\u00e3o em ambas as extremidades, placa borboleta e sede) deve ser completamente limpa para remover poeira e sujeira.<\/li><li>5. Antes da instala\u00e7\u00e3o, a v\u00e1lvula borboleta deve ser testada vazia, a abertura e o fechamento devem ser flex\u00edveis e a posi\u00e7\u00e3o de abertura e fechamento deve estar de acordo com o ponteiro que indica a posi\u00e7\u00e3o.<\/li><li>6. Opera\u00e7\u00e3o manual no sentido hor\u00e1rio para fechar, no sentido anti-hor\u00e1rio para abrir, a indica\u00e7\u00e3o do ponteiro est\u00e1 colocada, para n\u00e3o for\u00e7ar a abertura e o fechamento da v\u00e1lvula.<\/li><li>7. O teste de press\u00e3o da v\u00e1lvula n\u00e3o deve ser realizado com flange \u00fanico, mas sim com flange duplo. A press\u00e3o de teste deve estar em conformidade com o padr\u00e3o GB\/T13927-92.<\/li><li>8. Ao apertar os parafusos, deve-se realizar um aperto alternado sim\u00e9trico e n\u00e3o apertar separadamente.<\/li><li>9. O parafuso limite foi ajustado antes de sair da f\u00e1brica. N\u00e3o \u00e9 permitido ajustar facilmente. Se o dispositivo de acionamento for el\u00e9trico ou pneum\u00e1tico, consulte as instru\u00e7\u00f5es do dispositivo de acionamento de suporte.<\/li><li>10. O el\u00e9trico\u00a0<strong>v\u00e1lvula de borboleta\u00a0<\/strong>ajustou o curso de abertura e fechamento do mecanismo de controle quando sai da f\u00e1brica. Para evitar a dire\u00e7\u00e3o errada quando a fonte de alimenta\u00e7\u00e3o estiver conectada, o usu\u00e1rio deve primeiro abri-la manualmente para a posi\u00e7\u00e3o semiaberta antes de a primeira fonte de alimenta\u00e7\u00e3o ser conectada e, em seguida, pressionar o interruptor para verificar se a dire\u00e7\u00e3o da placa indicadora est\u00e1 consistente com a dire\u00e7\u00e3o de abertura da v\u00e1lvula.<\/li><li>11. As causas do mau funcionamento da abertura e fechamento da v\u00e1lvula devem ser descobertas, reparadas e eliminadas para evitar que a v\u00e1lvula seja danificada pelo uso do m\u00e9todo p\u00f3s-queima.<\/li><\/ul>","protected":false},"excerpt":{"rendered":"<p>1.Verifique se as especifica\u00e7\u00f5es da v\u00e1lvula borboleta, press\u00e3o, temperatura e resist\u00eancia \u00e0 corros\u00e3o atendem aos requisitos antes da instala\u00e7\u00e3o. As pe\u00e7as devem ser verificadas quanto a danos ... <a title=\"Notas sobre a instala\u00e7\u00e3o e utiliza\u00e7\u00e3o da v\u00e1lvula de borboleta exc\u00eantrica dupla da China\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/pt\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html\" aria-label=\"Mais em Notas para instala\u00e7\u00e3o e uso de v\u00e1lvula borboleta exc\u00eantrica dupla chinesa\">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-17481","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>Notes for Installation and Use of China Double E\u200bccentric 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\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Notes for Installation and Use of China Double E\u200bccentric Butterfly Valve - ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"1.Check whether butterfly valve specifications, pressure, temperature and corrosion resistance meet the requirements before installation. The parts should be checked for damage ... Ler mais\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/pt\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html\" \/>\n<meta property=\"og:site_name\" content=\"ZECO Valve\" \/>\n<meta property=\"article:published_time\" content=\"2022-06-27T15:34:49+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-08-08T03:30:07+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=\"1 minuto\">\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\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html#webpage\",\"url\":\"https:\/\/zecovalve.com\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html\",\"name\":\"Notes for Installation and Use of China Double E\\u200bccentric Butterfly Valve - ZECO Valve\",\"isPartOf\":{\"@id\":\"https:\/\/zecovalve.com\/#website\"},\"datePublished\":\"2022-06-27T15:34:49+00:00\",\"dateModified\":\"2022-08-08T03:30:07+00:00\",\"author\":{\"@id\":\"https:\/\/zecovalve.com\/#\/schema\/person\/f65555145e0ef282ff87649309aba6a3\"},\"breadcrumb\":{\"@id\":\"https:\/\/zecovalve.com\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/zecovalve.com\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/zecovalve.com\/notes-for-installation-and-use-of-china-double-eccentric-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\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html\",\"url\":\"https:\/\/zecovalve.com\/notes-for-installation-and-use-of-china-double-eccentric-butterfly-valve.html\",\"name\":\"Notes for Installation and Use of China Double E\\u200bccentric 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\/17481","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=17481"}],"version-history":[{"count":0,"href":"https:\/\/zecovalve.com\/pt\/wp-json\/wp\/v2\/posts\/17481\/revisions"}],"wp:attachment":[{"href":"https:\/\/zecovalve.com\/pt\/wp-json\/wp\/v2\/media?parent=17481"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zecovalve.com\/pt\/wp-json\/wp\/v2\/categories?post=17481"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zecovalve.com\/pt\/wp-json\/wp\/v2\/tags?post=17481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}