{"id":15689,"date":"2026-06-01T09:00:00","date_gmt":"2026-06-01T01:00:00","guid":{"rendered":"https:\/\/www.xintaivalves.com\/?p=15689"},"modified":"2026-06-25T12:29:28","modified_gmt":"2026-06-25T04:29:28","slug":"technical-guide-centric-butterfly-valve","status":"publish","type":"post","link":"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/technical-guide-centric-butterfly-valve\/","title":{"rendered":"O Que \u00c9 uma V\u00e1lvula Borboleta de Fechamento Central? Um Guia Completo para Compradores Industriais"},"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\/technical-guide-centric-butterfly-valve\/#How_a_Centric_Butterfly_Valve_Works\" >Como Funciona uma V\u00e1lvula Borboleta C\u00eantrica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/technical-guide-centric-butterfly-valve\/#Types_of_Centric_Butterfly_Valves_by_End_Connection\" >Tipos de V\u00e1lvulas Borboleta C\u00eantricas por Conex\u00e3o de Extremidade<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/technical-guide-centric-butterfly-valve\/#Wafer_Type_Butterfly_Valve\" >V\u00e1lvula Borboleta Tipo Wafer<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/technical-guide-centric-butterfly-valve\/#Lug_Type_Butterfly_Valve\" >V\u00e1lvula Borboleta Tipo Lug<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/technical-guide-centric-butterfly-valve\/#Double_Flanged_Butterfly_Valve\" >V\u00e1lvula Borboleta Dupla Flangeada<\/a><\/li><\/ul><\/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\/technical-guide-centric-butterfly-valve\/#What_are_the_Differences_Between_a_Centric_vs_Double_Offset_Butterfly_Valve\" >Quais s\u00e3o as Diferen\u00e7as Entre uma V\u00e1lvula Borboleta C\u00eantrica vs. Dupla Excentricidade?<\/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\/technical-guide-centric-butterfly-valve\/#Design_Specifications_and_Materials\" >Especifica\u00e7\u00f5es de Projeto e Materiais<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/technical-guide-centric-butterfly-valve\/#What_Are_the_Strengths_and_Weaknesses_of_CentricConcentric_Valves\" >Quais s\u00e3o os Pontos Fortes e Fracos das V\u00e1lvulas C\u00eantricas\/Conc\u00eantricas?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/technical-guide-centric-butterfly-valve\/#Where_Are_Concentric_or_Centric_Valves_Used_in_Industry\" >Onde as V\u00e1lvulas Conc\u00eantricas ou C\u00eantricas s\u00e3o Usadas na Ind\u00fastria?<\/a><\/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\/technical-guide-centric-butterfly-valve\/#How_to_Select_the_Right_Centric_or_Center-line_Butterfly_Valve\" >Como Selecionar a V\u00e1lvula Borboleta C\u00eantrica ou de Linha Central Correta<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/technical-guide-centric-butterfly-valve\/#Conclusion\" >Conclus\u00e3o<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">O <strong>c\u00eantrica<\/strong><a href=\"https:\/\/www.xintaivalves.com\/pt\/product\/centerline-wafer-type-butterfly-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong> v\u00e1lvula borboleta<\/strong><\/a> \u00e9 uma v\u00e1lvula de quarto de volta com haste e disco centralizados que fornece controle de fluxo liga\/desliga em sistemas de tubula\u00e7\u00e3o industrial. Tamb\u00e9m \u00e9 conhecida como v\u00e1lvula borboleta conc\u00eantrica, de linha central ou de deslocamento zero.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sua opera\u00e7\u00e3o simples de quarto de volta \u00e9 o motivo pelo qual \u00e9 usada principalmente em <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>, gera\u00e7\u00e3o de energia e ind\u00fastrias de processamento qu\u00edmico.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Este guia fornece informa\u00e7\u00f5es sobre o projeto de <strong>v\u00e1lvulas borboleta conc\u00eantricas<\/strong>, sua fun\u00e7\u00e3o, tipos, vantagens e \u00e1reas onde podem ser usadas com sucesso.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_a_Centric_Butterfly_Valve_Works\"><\/span><strong><br>Como Funciona uma V\u00e1lvula Borboleta C\u00eantrica<\/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\u724722-1024x512.webp\" alt=\"Como Funciona uma V\u00e1lvula Borboleta C\u00eantrica\" class=\"wp-image-15691\" style=\"width:564px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724722-1024x512.webp 1024w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724722-300x150.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724722-768x384.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724722-18x9.webp 18w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724722.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Uma v\u00e1lvula conc\u00eantrica ou exc\u00eantrica funciona com uma opera\u00e7\u00e3o simples de um quarto de volta e um design direto. Conhecer este princ\u00edpio de funcionamento ajuda a adequar a v\u00e1lvula \u00e0 condi\u00e7\u00e3o de servi\u00e7o correta.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Esta configura\u00e7\u00e3o de deslocamento zero apresenta tr\u00eas componentes alinhados em um \u00fanico eixo central: a haste, o disco e o corpo da v\u00e1lvula. Como este alinhamento conc\u00eantrico serve como sua caracter\u00edstica estrutural definidora, ela \u00e9 classificada como uma v\u00e1lvula borboleta conc\u00eantrica ou de deslocamento zero.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O disco \u00e9 montado em um eixo centralizado e fica diretamente no caminho do fluxo. Girar o eixo 90 graus move o disco de totalmente aberto (paralelo ao fluxo) para totalmente fechado (perpendicular ao fluxo).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na posi\u00e7\u00e3o fechada, o disco comprime contra um anel de sede elastom\u00e9rico resiliente. O anel de sede deforma-se ligeiramente sob press\u00e3o. Esta deforma\u00e7\u00e3o el\u00e1stica cria uma veda\u00e7\u00e3o estanque que impede vazamentos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Esta deforma\u00e7\u00e3o el\u00e1stica resulta em um fechamento bidirecional estanque e sem vazamentos, certificado pelas normas de teste API 598. Tamb\u00e9m \u00e9 conhecida como v\u00e1lvula borboleta com sede resiliente devido a este design de sede elastom\u00e9rica.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Types_of_Centric_Butterfly_Valves_by_End_Connection\"><\/span><strong>Tipos de V\u00e1lvulas Borboleta C\u00eantricas por Conex\u00e3o de Extremidade<\/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\u724723-1024x512.webp\" alt=\"3 Tipos de V\u00e1lvulas Borboleta Conc\u00eantricas por Conex\u00e3o Final\" class=\"wp-image-15692\" style=\"width:646px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724723-1024x512.webp 1024w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724723-300x150.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724723-768x384.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724723-18x9.webp 18w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724723.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Existem tr\u00eas tipos principais de conex\u00f5es de extremidade que atendem a diferentes necessidades de instala\u00e7\u00e3o e servi\u00e7o. Escolher o tipo certo afeta o custo de instala\u00e7\u00e3o, o acesso de manuten\u00e7\u00e3o e o desempenho a longo prazo.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Wafer_Type_Butterfly_Valve\"><\/span><strong>V\u00e1lvula Borboleta Tipo Wafer<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A v\u00e1lvula borboleta tipo wafer encaixa-se entre duas flanges de tubula\u00e7\u00e3o usando parafusos passantes. O corpo da v\u00e1lvula n\u00e3o possui flanges integradas. Isso mant\u00e9m o design compacto e leve.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O tipo wafer \u00e9 a op\u00e7\u00e3o mais econ\u00f4mica para servi\u00e7o geral. Padr\u00e3o <strong>Dimens\u00f5es da v\u00e1lvula borboleta tipo wafer<\/strong> seguem API 609, BS EN 558-1 e ASME B16.10. A faixa de tamanho abrange de DN 40 a DN 600.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Lug_Type_Butterfly_Valve\"><\/span><strong>V\u00e1lvula Borboleta Tipo Lug<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">O <strong>v\u00e1lvula borboleta tipo lug<\/strong> possui insertos roscados fundidos no corpo da v\u00e1lvula. Cada flange de tubula\u00e7\u00e3o \u00e9 aparafusada \u00e0 v\u00e1lvula independentemente. Isso permite que um lado da tubula\u00e7\u00e3o seja removido sem perturbar o outro lado.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c9 adequada para servi\u00e7o em extremidade morta e sistemas que exigem remo\u00e7\u00e3o peri\u00f3dica da tubula\u00e7\u00e3o a jusante. Plantas de processo e redes de distribui\u00e7\u00e3o de \u00e1gua usam este tipo com frequ\u00eancia.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Double_Flanged_Butterfly_Valve\"><\/span><strong>V\u00e1lvula Borboleta Dupla Flangeada<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">O <strong>v\u00e1lvula borboleta com flange dupla<\/strong> possui flanges integradas em ambas as extremidades. Ela \u00e9 aparafusada diretamente \u00e0s flanges de tubula\u00e7\u00e3o correspondentes. O corpo mais pesado \u00e9 adequado para tamanhos de tubula\u00e7\u00e3o maiores e condi\u00e7\u00f5es de servi\u00e7o mais exigentes. Isso \u00e9 totalmente diferente de uma <strong>v\u00e1lvula borboleta de deslocamento duplo,<\/strong> que ser\u00e1 discutida na pr\u00f3xima se\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redes de \u00e1gua, circuitos de resfriamento de usinas de energia e tubula\u00e7\u00f5es industriais de grande di\u00e2metro usam este tipo. Solicite o <strong>cat\u00e1logo de v\u00e1lvula borboleta com flange dupla<\/strong> da Xintai Valve para detalhes de configura\u00e7\u00e3o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_are_the_Differences_Between_a_Centric_vs_Double_Offset_Butterfly_Valve\"><\/span><strong>Quais s\u00e3o as Diferen\u00e7as Entre uma V\u00e1lvula Borboleta C\u00eantrica vs. Dupla Excentricidade?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A principal diferen\u00e7a entre uma v\u00e1lvula borboleta conc\u00eantrica e uma <strong><a href=\"https:\/\/www.xintaivalves.com\/pt\/knowledge-center\/difference-between-double-offset-and-triple-offset-butterfly-valve\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/knowledge-center\/difference-between-double-offset-and-triple-offset-butterfly-valve\/\" rel=\"noreferrer noopener\">com deslocamento duplo<\/a><\/strong> est\u00e1 no alinhamento da haste ou do disco.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Conhecer as principais diferen\u00e7as economiza tempo e evita erros de especifica\u00e7\u00e3o dispendiosos.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>V\u00e1lvula borboleta conc\u00eantrica ou de deslocamento zero<\/strong>: A haste alinha-se com as linhas centrais do disco e do corpo. A sede \u00e9 um material elastom\u00e9rico macio. Lida com classes de press\u00e3o padr\u00e3o: PN 6, PN 10, PN 16 e Classe 150. Adequa-se a l\u00edquidos e gases limpos ou levemente corrosivos.<\/li>\n\n\n\n<li><strong>V\u00e1lvula borboleta com deslocamento duplo<\/strong>: A haste tem dois deslocamentos em rela\u00e7\u00e3o \u00e0 linha central do disco. A sede \u00e9 de metal ou PTFE. Lida com press\u00f5es mais altas, temperaturas elevadas e meios abrasivos. Custa mais, mas prolonga a vida \u00fatil em condi\u00e7\u00f5es exigentes.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>manual da v\u00e1lvula borboleta conc\u00eantrica<\/strong> geralmente cobre a opera\u00e7\u00e3o de quarto de volta usando uma alavanca manual ou caixa de engrenagens. A base de montagem ISO 5211 acomoda atuadores el\u00e9tricos, pneum\u00e1ticos e hidr\u00e1ulicos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Design_Specifications_and_Materials\"><\/span><strong>Especifica\u00e7\u00f5es de Projeto e Materiais<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Esses par\u00e2metros definem o envelope operacional de uma v\u00e1lvula borboleta padr\u00e3o conc\u00eantrica ou de deslocamento zero. Use-os para verificar a compatibilidade com seu sistema de tubula\u00e7\u00e3o antes de especificar.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Par\u00e2metro<\/strong><\/td><td><strong>Valor<\/strong><\/td><\/tr><tr><td><strong>Faixa de tamanho<\/strong><\/td><td>DN 40 a DN 600<\/td><\/tr><tr><td><strong>Classifica\u00e7\u00e3o de press\u00e3o<\/strong><\/td><td>PN 6 \/ PN 10 \/ PN 16 \/ Classe 150<\/td><\/tr><tr><td><strong>Padr\u00e3o de design<\/strong><\/td><td>API 609 \/ BS EN 593 \/ IS: 13095<\/td><\/tr><tr><td><strong>Dimens\u00e3o Face a Face.<\/strong><\/td><td>API 609 \/ BS EN 558-1 \/ ASME B16.10<\/td><\/tr><tr><td><strong>Padr\u00e3o de Teste<\/strong><\/td><td>API 598 \/ BS EN 12266 Parte 1<\/td><\/tr><tr><td><strong>Montagem do Atuador<\/strong><\/td><td>ISO 5211<\/td><\/tr><tr><td><strong>Fura\u00e7\u00e3o da Flange<\/strong><\/td><td>ASME B16.5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Materiais do corpo e disco: <\/strong>Ferro fundido, ferro d\u00factil (revestido com nylon ou ep\u00f3xi), CF8, CF8M.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Materiais da sede: <\/strong>EPDM, NBR, Viton, silicone, PTFE, Hypalon e Neoprene. Selecione o material da sede com base no fluido e suas propriedades qu\u00edmicas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Design do fuso: <\/strong>Haste \u00e0 prova de sopro. Impede a eje\u00e7\u00e3o da haste sob press\u00e3o. Permite a desmontagem segura da v\u00e1lvula.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Reten\u00e7\u00e3o da sede: <\/strong>O design da sede com travamento central elimina o movimento da sede durante a assentamento e desassentamento do disco.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Are_the_Strengths_and_Weaknesses_of_CentricConcentric_Valves\"><\/span><strong>Quais s\u00e3o os Pontos Fortes e Fracos das V\u00e1lvulas C\u00eantricas\/Conc\u00eantricas?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Para ajudar os compradores a fazer escolhas informadas, aqui est\u00e1 uma compara\u00e7\u00e3o das vantagens e desvantagens das v\u00e1lvulas borboleta conc\u00eantricas ou de deslocamento zero.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Vantagens<\/strong><\/td><td><strong>Desvantagens<\/strong><\/td><\/tr><tr><td>Corpo compacto e leve. Reduz os requisitos de suporte da tubula\u00e7\u00e3o e a m\u00e3o de obra durante a instala\u00e7\u00e3o.<\/td><td>O design de veda\u00e7\u00e3o macia limita o servi\u00e7o \u00e0s classes de press\u00e3o PN 6 a PN 16 \/ Classe 150.<\/td><\/tr><tr><td>Baixo torque de opera\u00e7\u00e3o. Permite atuadores menores e de menor custo.<\/td><td>N\u00e3o recomendado para vapor de alta temperatura sem a sele\u00e7\u00e3o correta do material da sede.<\/td><\/tr><tr><td>Poucas partes m\u00f3veis. Reduz a frequ\u00eancia de manuten\u00e7\u00e3o e o custo total do ciclo de vida.<\/td><td>O disco permanece no caminho do fluxo quando aberto. Isso cria uma queda de press\u00e3o pequena, mas mensur\u00e1vel.<\/td><\/tr><tr><td>Bloqueio bidirecional. Veda em ambas as dire\u00e7\u00f5es de fluxo.<\/td><td><\/td><\/tr><tr><td>Ampla gama de materiais de sede. Lida com a maioria de l\u00edquidos, gases e p\u00f3s.<\/td><td><\/td><\/tr><tr><td>Furo do corpo dimensionado para a linha. Maximiza o fluxo e minimiza a queda de press\u00e3o.<\/td><td><\/td><\/tr><tr><td>Atende tanto a fun\u00e7\u00f5es de isolamento on\/off quanto a fun\u00e7\u00f5es de estrangulamento\/controle de fluxo.<\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Where_Are_Concentric_or_Centric_Valves_Used_in_Industry\"><\/span><strong>Onde as V\u00e1lvulas Conc\u00eantricas ou C\u00eantricas s\u00e3o Usadas na Ind\u00fastria?<\/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\u724724-1024x512.webp\" alt=\"V\u00e1lvulas Conc\u00eantricas ou Centrais Usadas na Ind\u00fastria\" class=\"wp-image-15693\" style=\"width:686px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724724-1024x512.webp 1024w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724724-300x150.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724724-768x384.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724724-18x9.webp 18w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724724.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">O <strong>v\u00e1lvula borboleta conc\u00eantrica<\/strong> atende a uma ampla gama de ind\u00fastrias. Sua adaptabilidade a diferentes m\u00eddias, tamanhos de tubula\u00e7\u00e3o e m\u00e9todos de atua\u00e7\u00e3o impulsiona a ampla ado\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Estas v\u00e1lvulas s\u00e3o usadas principalmente em:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tratamento de \u00e1gua e esgoto: <\/strong>Coagula\u00e7\u00e3o, sedimenta\u00e7\u00e3o, filtra\u00e7\u00e3o e desinfec\u00e7\u00e3o. Lida com altas vaz\u00f5es com bloqueio herm\u00e9tico.<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/gate-valve\/power-plant-valves-guide-types-functions\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/gate-valve\/power-plant-valves-guide-types-functions\/\" rel=\"noreferrer noopener\">Gera\u00e7\u00e3o de energia<\/a>: <\/strong>Sistemas de \u00e1gua de resfriamento, tubula\u00e7\u00f5es de condensado e servi\u00e7os auxiliares.<\/li>\n\n\n\n<li><strong>Processamento qu\u00edmico e petroqu\u00edmico: <\/strong>Op\u00e7\u00f5es de sede em PTFE e Viton resistem a m\u00eddias qu\u00edmicas agressivas.<\/li>\n\n\n\n<li><strong>Sistemas HVAC: <\/strong>Distribui\u00e7\u00e3o de \u00e1gua gelada, \u00e1gua quente e vapor em unidades de tratamento de ar e dutos.<\/li>\n\n\n\n<li><strong>Prote\u00e7\u00e3o contra inc\u00eandio: <\/strong>Redes de hidrantes de \u00e1gua, sistemas de aspers\u00e3o e sistemas de supress\u00e3o de espuma.<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/mining-industry-valve\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/mining-industry-valve\/\" rel=\"noreferrer noopener\">Minera\u00e7\u00e3o<\/a> e processamento mineral: <\/strong>Manuseio de polpa com disco de a\u00e7o inoxid\u00e1vel de alto cromo ou CF8M e sele\u00e7\u00e3o de sede resistente \u00e0 corros\u00e3o.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Select_the_Right_Centric_or_Center-line_Butterfly_Valve\"><\/span><strong>Como Selecionar a V\u00e1lvula Borboleta C\u00eantrica ou de Linha Central Correta<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Use esta lista de verifica\u00e7\u00e3o guiada para ajudar a combinar a v\u00e1lvula certa com seu sistema. Isso ajudar\u00e1 a evitar erros de incompatibilidade e a prevenir manuten\u00e7\u00f5es ou substitui\u00e7\u00f5es dispendiosas.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Qual \u00e9 o tipo de m\u00eddia? <\/strong>\u00c9<strong> <\/strong>l\u00edquido, g\u00e1s, polpa ou p\u00f3?<\/li>\n\n\n\n<li><strong>Quais s\u00e3o a press\u00e3o e a temperatura de opera\u00e7\u00e3o? <\/strong>Confirme a classifica\u00e7\u00e3o PN necess\u00e1ria e a compatibilidade do material da sede.<\/li>\n\n\n\n<li><strong>Qual \u00e9 o tipo de conex\u00e3o da tubula\u00e7\u00e3o? <\/strong>\u00c9<strong> <\/strong>wafer, lug ou flange duplo?<\/li>\n\n\n\n<li><strong>Quais s\u00e3o o tamanho da tubula\u00e7\u00e3o (DN) e as dimens\u00f5es face a face? <\/strong>Sempre<strong> <\/strong>consulte <strong>as dimens\u00f5es da v\u00e1lvula borboleta tipo wafer<\/strong> no cat\u00e1logo de produtos.<\/li>\n\n\n\n<li><strong>Qual \u00e9 o m\u00e9todo de atua\u00e7\u00e3o? <\/strong>\u00c9 um<strong> <\/strong>alavanca manual, caixa de engrenagens, atuador el\u00e9trico, pneum\u00e1tico ou hidr\u00e1ulico?<\/li>\n\n\n\n<li><strong>Verifique a compatibilidade qu\u00edmica: <\/strong>Certifique-se de selecionar o material do assento com base nas propriedades qu\u00edmicas do meio.<\/li>\n<\/ol>\n\n\n\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: 'Poppins', Arial, sans-serif;\n    text-decoration: none !important;\n    color: inherit;\n    transition: transform 0.3s ease, box-shadow 0.3s ease;\n  }\n\n  .hero-card:hover {\n    transform: translateY(-3px);\n    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);\n  }\n\n  .hero-image {\n    width: 220px;\n    height: auto;\n    border-radius: 12px;\n    object-fit: contain; \n    background: #ffffff;\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', Arial, sans-serif;\n    text-transform: capitalize;\n  }\n\n  .hero-description {\n    font-size: 1rem;\n    color: #555;\n    margin-bottom: 18px;\n    line-height: 1.6;\n  }\n\n  .hero-link {\n    display: inline-block;\n    padding: 10px 20px;\n    background-color: #D70C19;\n    color: #fff !important;\n    text-decoration: none !important;\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: #a80913; \n  }\n\n  @media (max-width: 640px) {\n    .hero-card {\n      flex-direction: column;\n      text-align: center;\n    }\n    .hero-content {\n      padding-left: 0;\n      padding-top: 20px;\n    }\n    .hero-image {\n      width: 100%;\n      max-width: 280px;\n    }\n  }\n<\/style>\n\n<a class=\"hero-card\" href=\"https:\/\/www.xintaivalves.com\/pt\/products\/ptfe-lined-flanged-centerline-butterfly-valve\/\" target=\"_blank\" rel=\"noopener noreferrer\">\n  <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/xintaivalves.b-cdn.net\/wp-content\/uploads\/2026\/06\/%E4%B8%AD%E7%BA%BF%E8%A1%AC%E6%B0%9F%E6%B3%95%E5%85%B0%E8%9D%B6%E9%98%80.jpg\" alt=\"V\u00e1lvula Borboleta de Linha Central com Flange Revestida de PTFE para Meios Corrosivos\">\n  <div class=\"hero-content\">\n    <div class=\"hero-title\">V\u00e1lvula Borboleta de Linha Central com Revestimento de PTFE e Flange<\/div>\n    <div class=\"hero-description\">\n      <strong>Capacidade Principal:<\/strong> Projetado especificamente para manusear meios altamente corrosivos.<br>\n      <strong>Aplica\u00e7\u00e3o Industrial:<\/strong> Solu\u00e7\u00e3o OEM confi\u00e1vel para processamento qu\u00edmico, tratamento de \u00e1gua, instala\u00e7\u00f5es farmac\u00eauticas e industriais.\n    <\/div>\n    <span class=\"hero-link\">Ver Especifica\u00e7\u00f5es T\u00e9cnicas<\/span>\n  <\/div>\n<\/a>\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\">A v\u00e1lvula borboleta conc\u00eantrica, de zero deslocamento ou de linha central \u00e9 adequada para sistemas industriais devido ao seu design simples, baixo custo operacional e ampla faixa de aplica\u00e7\u00e3o. Ela manuseia meios de \u00e1gua, g\u00e1s, qu\u00edmicos e em p\u00f3 nas classes de press\u00e3o mais comuns.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.xintaivalves.com\/pt\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/how-xintai-valve-supports-large-scale-epc-projects-globally\/\" rel=\"noreferrer noopener\">V\u00e1lvula Xintai<\/a> projeta v\u00e1lvulas borboleta de acordo com as normas API 609, BS EN 593, API 598, ASME B16.10 e ISO 5211. Esses tipos de v\u00e1lvulas borboleta incluem conc\u00eantricas, <a href=\"https:\/\/www.xintaivalves.com\/pt\/product\/double-eccentric-butterfly-valves\/\" target=\"_blank\" rel=\"noreferrer noopener\">dupla exc\u00eantrica<\/a>, e <a href=\"https:\/\/www.xintaivalves.com\/pt\/product\/triple-eccentric-butterfly-valves\/\" target=\"_blank\" rel=\"noreferrer noopener\">v\u00e1lvulas borboleta exc\u00eantricas triplas<\/a><\/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>","protected":false},"excerpt":{"rendered":"<p>The centric butterfly valve is a quarter-turn valve with a centered stem and disc that provides on\/off flow control in industrial piping systems. It is also known as a concentric, center-line, or zero-offset butterfly valve.\u00a0 Its simple quarter-turn operation is the reason why it is mainly used in water treatment, power generation, and chemical processing [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":15690,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-15689","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\/15689","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=15689"}],"version-history":[{"count":2,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/posts\/15689\/revisions"}],"predecessor-version":[{"id":15695,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/posts\/15689\/revisions\/15695"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/media\/15690"}],"wp:attachment":[{"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/media?parent=15689"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/categories?post=15689"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/tags?post=15689"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}