{"id":15650,"date":"2026-06-15T09:50:00","date_gmt":"2026-06-15T01:50:00","guid":{"rendered":"https:\/\/www.xintaivalves.com\/?p=15650"},"modified":"2026-06-25T12:34:59","modified_gmt":"2026-06-25T04:34:59","slug":"what-difference-double-flanged-vs-lug-butterfly-valves","status":"publish","type":"post","link":"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/","title":{"rendered":"V\u00e1lvula Borboleta com Flanges Duplos vs Tipo Lug: Qual o Seu Sistema Precisa?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar \u00edndice de conte\u00fado\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Alternar<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#What_Is_a_Double-Flanged_Butterfly_Valve\" >O Que \u00c9 uma V\u00e1lvula Borboleta Dupla Flangeada?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#What_Makes_the_Single_Flange_Butterfly_Valve_Different\" >O Que Torna a V\u00e1lvula Borboleta de Flange \u00danico Diferente?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#Key_Structural_Differences_at_a_Glance\" >Principais Diferen\u00e7as Estruturais em Resumo<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#Pressure_Ratings_Which_Valve_Handles_More\" >Classifica\u00e7\u00f5es de Press\u00e3o: Qual V\u00e1lvula Suporta Mais?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#Double-Flanged_Butterfly_Valve_Sizes_Dimensions_and_Bolting\" >Tamanhos, Dimens\u00f5es e Parafusos da V\u00e1lvula Borboleta Dupla Flangeada<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#Installation_and_Maintenance_Comparison\" >Compara\u00e7\u00e3o de Instala\u00e7\u00e3o e Manuten\u00e7\u00e3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#Which_Valve_Type_Fits_Your_System\" >Qual Tipo de V\u00e1lvula se Adapta ao Seu Sistema?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#Choose_a_double-flanged_valve_when\" >Escolha uma v\u00e1lvula de flange duplo quando:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#Choose_a_lug-type_butterfly_valve_when\" >Escolha uma v\u00e1lvula borboleta tipo lug quando:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#Conclusion\" >Conclus\u00e3o<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">Diferentes tipos de v\u00e1lvulas s\u00e3o necess\u00e1rios em seu sistema por diferentes raz\u00f5es. A distin\u00e7\u00e3o entre uma v\u00e1lvula lug e uma v\u00e1lvula flangeada depende de como elas s\u00e3o instaladas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ao selecionar um <a href=\"https:\/\/www.xintaivalves.com\/pt\/product\/double-eccentric-butterfly-valves\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>v\u00e1lvula borboleta com flange dupla<\/strong><\/a> ou uma v\u00e1lvula lug, considere as principais despesas de longo prazo. Voc\u00ea deve avaliar tanto os custos de instala\u00e7\u00e3o iniciais quanto as despesas futuras de manuten\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Este artigo compara ambos os tipos em termos de instala\u00e7\u00e3o, manuseio de press\u00e3o, dimensionamento e adequa\u00e7\u00e3o \u00e0 aplica\u00e7\u00e3o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_a_Double-Flanged_Butterfly_Valve\"><\/span><strong>O Que \u00c9 uma V\u00e1lvula Borboleta Dupla Flangeada?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72472-1024x512.webp\" alt=\"V\u00e1lvula Borboleta de Flange Duplo\" class=\"wp-image-15654\" style=\"width:550px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72472-1024x512.webp 1024w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72472-300x150.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72472-768x384.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72472-18x9.webp 18w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72472.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Uma v\u00e1lvula de flange duplo ou exc\u00eantrica dupla possui flanges integrais em ambas as extremidades. Estas s\u00e3o aparafusadas diretamente \u00e0s flanges da tubula\u00e7\u00e3o adjacente.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e1 um disco rotativo ao longo de um eixo que regula o fluxo de fluido. A press\u00e3o \u00e9 distribu\u00edda uniformemente sobre todo o disco devido aos flanges.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O corpo \u00e9 geralmente feito de ferro d\u00factil, a\u00e7o fundido WCB e a\u00e7o inoxid\u00e1vel. <a href=\"https:\/\/www.xintaivalves.com\/pt\/butterfly-valve-collection\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>V\u00e1lvula borboleta de flange duplo <\/strong><\/a><strong>fabricantes<\/strong> produzir estas v\u00e1lvulas de acordo com os padr\u00f5es dimensionais ANSI, DIN, API e JIS.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Makes_the_Single_Flange_Butterfly_Valve_Different\"><\/span><strong>O Que Torna a V\u00e1lvula Borboleta de Flange \u00danico Diferente?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Este projeto difere de uma <strong>v\u00e1lvula borboleta de flange \u00fanico<\/strong> (tipo wafer). Uma v\u00e1lvula wafer n\u00e3o possui flange integral. Ela depende de flanges de tubula\u00e7\u00e3o adjacentes para compress\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e3o s\u00e3o necess\u00e1rios parafusos passantes. Um lado da tubula\u00e7\u00e3o pode ser desparafusado e removido sem perturbar o outro. Isso torna as v\u00e1lvulas tipo lug adequadas para servi\u00e7o em extremidade morta.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Os materiais de sede incluem EPDM e PTFE, que lidam com meios corrosivos ou quimicamente ativos. Ferro fundido d\u00factil, WCB e a\u00e7o inoxid\u00e1vel s\u00e3o os materiais do corpo, que s\u00e3o semelhantes ao tipo de flange duplo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A faixa de tamanho t\u00edpica varia de DN50 (2\u2033) a DN600 (24\u2033). As v\u00e1lvulas lug pesam menos do que os equivalentes de flange duplo do mesmo di\u00e2metro.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Key_Structural_Differences_at_a_Glance\"><\/span><strong>Principais Diferen\u00e7as Estruturais em Resumo<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A tabela abaixo resume as diferen\u00e7as estruturais e operacionais cr\u00edticas.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Recurso<\/strong><\/td><td><strong>V\u00e1lvula Borboleta Exc\u00eantrica Dupla<\/strong><\/td><td><strong>V\u00e1lvula Borboleta Tipo Lug<\/strong><\/td><\/tr><tr><td><strong>M\u00e9todo de conex\u00e3o<\/strong><\/td><td>Flanges integrais s\u00e3o aparafusados a ambos os flanges da tubula\u00e7\u00e3o<\/td><td>Lugs roscados s\u00e3o aparafusados independentemente a cada flange<\/td><\/tr><tr><td><strong>Servi\u00e7o em extremidade morta<\/strong><\/td><td>N\u00e3o recomendado sem modifica\u00e7\u00e3o<\/td><td>Sim, um lado pode ser isolado<\/td><\/tr><tr><td><strong>Peso do corpo<\/strong><\/td><td>Dimens\u00e3o face a face mais pesada e maior<\/td><td>Perfil mais leve e compacto<\/td><\/tr><tr><td><strong>Padr\u00e3o de parafusos<\/strong><\/td><td><strong>Parafusos de borboleta com flange dupla<\/strong>: conjunto completo de parafusos prisioneiros atrav\u00e9s de ambas as flanges<\/td><td>Parafusos separados em cada orelha, sem necessidade de parafusos passantes<\/td><\/tr><tr><td><strong>Padr\u00f5es<\/strong><\/td><td>ANSI, DIN, API, JIS. Veja o <strong>dimens\u00f5es da v\u00e1lvula borboleta de flange dupla<\/strong> no produto <strong><a href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/what-double-flange-butterfly-valve\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/butterfly-valve\/what-double-flange-butterfly-valve\/\" rel=\"noreferrer noopener\">v\u00e1lvula borboleta duplamente flangeada<\/a> cat\u00e1logo<\/strong><\/td><td>Os mesmos padr\u00f5es se aplicam; uma dimens\u00e3o face a face mais curta<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pressure_Ratings_Which_Valve_Handles_More\"><\/span><strong>Classifica\u00e7\u00f5es de Press\u00e3o: Qual V\u00e1lvula Suporta Mais?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O desempenho sob press\u00e3o \u00e9 frequentemente o fator decisivo entre esses dois tipos de v\u00e1lvulas. Os engenheiros devem verificar as classifica\u00e7\u00f5es antes de finalizar as especifica\u00e7\u00f5es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Os projetos de v\u00e1lvulas com flange dupla suportam maior estresse mec\u00e2nico porque as flanges integrais distribuem a carga uniformemente por toda a face. Isso melhora a consist\u00eancia da veda\u00e7\u00e3o sob condi\u00e7\u00f5es de alta press\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Essas v\u00e1lvulas s\u00e3o adequadas para servi\u00e7os de alta press\u00e3o, alta temperatura e corrosivos. As aplica\u00e7\u00f5es comuns incluem transmiss\u00e3o de petr\u00f3leo e g\u00e1s, tubula\u00e7\u00f5es de \u00e1gua de grande di\u00e2metro e gera\u00e7\u00e3o de energia.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As v\u00e1lvulas tipo orelha funcionam bem em servi\u00e7os de baixa a m\u00e9dia press\u00e3o. As classifica\u00e7\u00f5es de press\u00e3o podem diminuir quando usadas em aplica\u00e7\u00f5es de extremidade morta. Sempre verifique a press\u00e3o nominal em rela\u00e7\u00e3o \u00e0s condi\u00e7\u00f5es reais do sistema.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Para di\u00e2metros de tubula\u00e7\u00e3o acima de DN400, a v\u00e1lvula borboleta dupla exc\u00eantrica oferece maior estabilidade estrutural. Revise o <strong>PDF da v\u00e1lvula borboleta com flange dupla<\/strong> do seu fornecedor para tabelas de redu\u00e7\u00e3o de press\u00e3o-temperatura.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Double-Flanged_Butterfly_Valve_Sizes_Dimensions_and_Bolting\"><\/span><strong>Tamanhos, Dimens\u00f5es e Parafusos da V\u00e1lvula Borboleta Dupla Flangeada<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"397\" height=\"499\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72473.webp\" alt=\"V\u00e1lvula Borboleta Dupla Flangeada\" class=\"wp-image-15656\" style=\"aspect-ratio:0.7955965118436514;width:181px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72473.webp 397w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72473-239x300.webp 239w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72473-10x12.webp 10w\" sizes=\"(max-width: 397px) 100vw, 397px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Os compradores devem sempre confirmar o dimensionamento e avaliar o certificado <strong>cat\u00e1logo de v\u00e1lvula borboleta com flange dupla<\/strong> antes de encomendar. Isso ajuda a prevenir incompatibilidades dispendiosas durante a aquisi\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tamanhos de v\u00e1lvulas borboleta de flange dupla<\/strong> geralmente variam de DN50 (2\u2033) a DN2000 (80\u2033) para grandes projetos de infraestrutura.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As dimens\u00f5es face a face seguem a ANSI B16.10, EN 558 S\u00e9rie 13\/14, ou <a href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/standard\/understanding-the-standard-api-valve\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/standard\/understanding-the-standard-api-valve\/\" rel=\"noreferrer noopener\">Padr\u00f5es de API<\/a>. <strong>Flange dupla <a href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/butterfly-valve-dimensions\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/butterfly-valve\/butterfly-valve-dimensions\/\" rel=\"noreferrer noopener\">dimens\u00f5es da v\u00e1lvula borboleta<\/a><\/strong> variam de acordo com a classe de press\u00e3o e o di\u00e2metro nominal. Uma <strong>PDF da v\u00e1lvula borboleta com flange dupla<\/strong> folha de dados do seu fornecedor fornece a tabela dimensional completa.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Para refer\u00eancia r\u00e1pida, exemplos de face a face ANSI incluem:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DN80 (3\u2033): aprox. 216 mm (8,5\u2033)<\/li>\n\n\n\n<li>DN150 (6\u2033): aprox. 368 mm (14,5\u2033)<\/li>\n\n\n\n<li>DN200 (8\u2033): aprox. 444 mm (17,5\u2033)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Parafusos de v\u00e1lvulas borboleta de flange dupla<\/strong> requerem prisioneiros e porcas para fixar ambas as flanges simultaneamente. O di\u00e2metro do c\u00edrculo de parafusos, a contagem de parafusos e o tamanho dos parafusos seguem os padr\u00f5es aplic\u00e1veis da ANSI Classe 150\/300 ou PN10\/PN16.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e1lvulas tipo lug usam parafusos mais curtos e separados que rosqueiam em cada lug. Menos parafusos significam desmontagem mais r\u00e1pida durante a manuten\u00e7\u00e3o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Installation_and_Maintenance_Comparison\"><\/span><strong>Compara\u00e7\u00e3o de Instala\u00e7\u00e3o e Manuten\u00e7\u00e3o<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O custo total do projeto \u00e9 determinado pela facilidade com que uma v\u00e1lvula pode ser instalada. Ambos os tipos de v\u00e1lvulas exigem abordagens diferentes para prepara\u00e7\u00e3o do local e planejamento de manuten\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A instala\u00e7\u00e3o de uma v\u00e1lvula tipo flange duplo requer alinhamento preciso das flanges em ambos os lados antes do aperto de todo o conjunto de parafusos. O resultado \u00e9 uma montagem r\u00edgida e \u00e0 prova de vazamentos, constru\u00edda para servi\u00e7o permanente.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e1lvulas tipo lug s\u00e3o aparafusadas independentemente a cada flange. As equipes podem remover a tubula\u00e7\u00e3o a jusante sem interromper a press\u00e3o a montante. Isso simplifica sistemas que exigem substitui\u00e7\u00e3o frequente de componentes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do ponto de vista de custo, as v\u00e1lvulas tipo lug t\u00eam menor custo unit\u00e1rio e pesam menos. A v\u00e1lvula flange duplo tem um pre\u00e7o mais alto, mas oferece desempenho consistente em servi\u00e7os exigentes e de ciclo longo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Which_Valve_Type_Fits_Your_System\"><\/span><strong>Qual Tipo de V\u00e1lvula se Adapta ao Seu Sistema?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72474-1024x512.webp\" alt=\"Qual Tipo de V\u00e1lvula se Adapta ao Seu Sistema\" class=\"wp-image-15657\" style=\"width:538px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72474-1024x512.webp 1024w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72474-300x150.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72474-768x384.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72474-18x9.webp 18w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72474.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A sele\u00e7\u00e3o entre os dois tipos de v\u00e1lvulas depende das condi\u00e7\u00f5es espec\u00edficas da aplica\u00e7\u00e3o.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A lista de verifica\u00e7\u00e3o abaixo ajuda as equipes de projeto a tomar uma decis\u00e3o confiante e pronta para especifica\u00e7\u00f5es.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Choose_a_double-flanged_valve_when\"><\/span><strong>Escolha uma v\u00e1lvula de flange duplo quando:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A press\u00e3o ou temperatura operacional excede a faixa nominal do tipo lug.<\/li>\n\n\n\n<li>O di\u00e2metro da tubula\u00e7\u00e3o \u00e9 DN400 ou maior, como infraestrutura de \u00e1gua ou <a href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/upstream-vs-downstream-oil-gas\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/upstream-vs-downstream-oil-gas\/\" rel=\"noreferrer noopener\">\u00f3leo e g\u00e1s<\/a> linhas de transmiss\u00e3o.<\/li>\n\n\n\n<li>A instala\u00e7\u00e3o \u00e9 permanente e o acesso de manuten\u00e7\u00e3o \u00e9 infrequente.<\/li>\n\n\n\n<li>As especifica\u00e7\u00f5es do projeto exigem documenta\u00e7\u00e3o <strong>das dimens\u00f5es da v\u00e1lvula borboleta flange duplo<\/strong> de acordo com os padr\u00f5es ANSI, DIN ou API.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Choose_a_lug-type_butterfly_valve_when\"><\/span><strong>Escolha uma v\u00e1lvula borboleta tipo lug quando:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Manuten\u00e7\u00e3o, inspe\u00e7\u00e3o ou substitui\u00e7\u00e3o frequente da v\u00e1lvula \u00e9 necess\u00e1ria.<\/li>\n\n\n\n<li>O isolamento em extremidade morta ou no final da linha \u00e9 um requisito do sistema.<\/li>\n\n\n\n<li>Restri\u00e7\u00f5es de or\u00e7amento ou peso se aplicam, especialmente para aplica\u00e7\u00f5es de menor di\u00e2metro e press\u00e3o moderada.<\/li>\n\n\n\n<li>O ambiente do sistema inclui HVAC, industrial leve, processamento qu\u00edmico ou <a href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/valves-for-water-treatment\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/valves-for-water-treatment\/\" rel=\"noreferrer noopener\">tratamento de \u00e1gua<\/a>.&nbsp;<\/li>\n<\/ul>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  <title>Destaque do produto Hero<\/title>\n  <style>\n    .hero-card {\n      display: flex;\n      flex-wrap: wrap;\n      align-items: center;\n      background: #f7f8fa;\n      border-radius: 16px;\n      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);\n      padding: 24px;\n      max-width: 900px;\n      margin: 40px auto;\n      font-family: Arial, sans-serif;\n      text-decoration: none;\n      color: inherit;\n      font-family: 'Poppins';\n    }\n\n    .hero-image {\n      width: 220px;\n      height: auto;\n      border-radius: 12px;\n      object-fit: cover;\n      flex-shrink: 0;\n    }\n\n    .hero-content {\n      padding-left: 24px;\n      flex: 1;\n      min-width: 260px;\n    }\n\n    .hero-title {\n      font-size: 1.6rem;\n      font-weight: bold;\n      margin-bottom: 12px;\n      color: #222;\n      font-family: 'Poppins';\n    }\n\n    .hero-description {\n      font-size: 1rem;\n      color: #555;\n      margin-bottom: 18px;\n    }\n\n    .hero-link {\n      display: inline-block;\n      padding: 10px 20px;\n      background-color: #D70C19;\n      color: #fff;\n      text-decoration: none;\n      border-radius: 8px;\n      font-weight: bold;\n      transition: background 0.2s ease-in-out;\n    }\n\n    .hero-link:hover {\n      background-color: #D70C19;\n    }\n\n    @media (max-width: 640px) {\n      .hero-card {\n        flex-direction: column;\n        text-align: center;\n      }\n\n      .hero-content {\n        padding-left: 0;\n        padding-top: 20px;\n      }\n\n      .hero-image {\n        width: 100%;\n        max-width: 280px;\n      }\n    }\n  <\/style>\n<\/head>\n<body>\n\n<a class=\"hero-card\" href=\"https:\/\/www.xintaivalves.com\/pt\/products\/double-eccentric-butterfly-valves\/\" target=\"_blank\">\n  <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/xintaivalves.com\/wp-content\/uploads\/2022\/02\/%E6%9C%AA%E6%A0%87%E9%A2%98-1-6.jpg\" alt=\"V\u00e1lvulas Borboleta Exc\u00eantricas Duplas\">\n  <div class=\"hero-content\">\n    <div class=\"hero-title\">\ud83d\udee0 V\u00e1lvula Borboleta Dupla Exc\u00eantrica<\/div>\n    <div class=\"hero-description\">Projetada para controle de fluxo de precis\u00e3o, a v\u00e1lvula borboleta dupla exc\u00eantrica oferece melhor desempenho de veda\u00e7\u00e3o e durabilidade para sistemas de alta press\u00e3o.<\/div>\n    <span class=\"hero-link\">Explorar produto<\/span>\n  <\/div>\n<\/a>\n\n<\/body>\n<\/html>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Conclus\u00e3o<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Escolhendo entre um <strong>v\u00e1lvula borboleta com flange dupla<\/strong> e um tipo de lingueta se resume a quatro fatores-chave. Voc\u00ea deve avaliar a classifica\u00e7\u00e3o de press\u00e3o, o tipo de instala\u00e7\u00e3o, a frequ\u00eancia de manuten\u00e7\u00e3o e a conformidade dimensional.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Instala\u00e7\u00f5es de alta press\u00e3o, grande di\u00e2metro e permanentes exigem o design de flange dupla. Aplica\u00e7\u00f5es econ\u00f4micas, de manuten\u00e7\u00e3o intensiva ou de servi\u00e7o de extremidade morta exigem o tipo de lingueta.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.xintaivalves.com\/pt\/contact\/\" target=\"_blank\" rel=\"noreferrer noopener\">V\u00e1lvulas Xintai<\/a> fabrica v\u00e1lvulas borboleta industriais desde 1998. Os produtos est\u00e3o em conformidade com os padr\u00f5es ISO 9001, API, CE, ANSI, DIN, JIS e BS. A empresa opera seis bases de produ\u00e7\u00e3o em toda a China, com uma oficina de 58.000 m\u00b2 e uma produ\u00e7\u00e3o anual de mais de 270.000 v\u00e1lvulas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tamb\u00e9m fornecemos para empresas de engenharia, compradores de projetos e distribuidores em quase 40 pa\u00edses. Os clientes incluem grandes operadoras na Am\u00e9rica do Norte, Am\u00e9rica do Sul, Europa e Oriente M\u00e9dio.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-vivid-red-background-color has-text-color has-background has-link-color has-medium-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/www.xintaivalves.com\/pt\/contact\/\" style=\"font-style:normal;font-weight:500\" target=\"_blank\" rel=\"noreferrer noopener\">Obtenha um Or\u00e7amento<\/a><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Different types of valves are needed in your system for different reasons. The distinction between a lug valve and a flanged valve depends on how they are installed. When selecting a double-flanged butterfly valve or a lug valve, consider key long-term expenses. You must evaluate both upfront installation costs and future maintenance expenses. This article [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":15653,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-15650","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-butterfly-valve"],"_links":{"self":[{"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/posts\/15650","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/comments?post=15650"}],"version-history":[{"count":4,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/posts\/15650\/revisions"}],"predecessor-version":[{"id":15677,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/posts\/15650\/revisions\/15677"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/media\/15653"}],"wp:attachment":[{"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/media?parent=15650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/categories?post=15650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/tags?post=15650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}