{"id":15729,"date":"2026-06-09T08:38:00","date_gmt":"2026-06-09T00:38:00","guid":{"rendered":"https:\/\/www.xintaivalves.com\/?p=15729"},"modified":"2026-06-25T12:32:28","modified_gmt":"2026-06-25T04:32:28","slug":"how-to-choose-butterfly-valve","status":"publish","type":"post","link":"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/","title":{"rendered":"Guia de Sele\u00e7\u00e3o de V\u00e1lvulas Borboleta: Como Escolher a V\u00e1lvula Borboleta Certa"},"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\/how-to-choose-butterfly-valve\/#What_are_the_Components_of_a_Butterfly_Valve\" >Quais s\u00e3o os Componentes de uma V\u00e1lvula Borboleta?<\/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\/how-to-choose-butterfly-valve\/#Butterfly_Valve_Types_by_Body_and_Connection_Style\" >Tipos de V\u00e1lvulas Borboleta por Estilo de Corpo e Conex\u00e3o<\/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\/how-to-choose-butterfly-valve\/#Wafer_Butterfly_Valve\" >V\u00e1lvula Borboleta 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\/how-to-choose-butterfly-valve\/#Flanged_Butterfly_Valve\" >V\u00e1lvula Borboleta Flangeada<\/a><\/li><\/ul><\/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\/how-to-choose-butterfly-valve\/#Butterfly_Valve_Seat_Types_and_Seat_Material_Compatibility_Chart\" >Tipos de Sede de V\u00e1lvula Borboleta e Tabela de Compatibilidade de Material da Sede<\/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\/how-to-choose-butterfly-valve\/#Five_Key_Influences_for_Right_Butterfly_Valve_Selection\" >Cinco Influ\u00eancias Chave para a Sele\u00e7\u00e3o Correta da V\u00e1lvula Borboleta<\/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\/how-to-choose-butterfly-valve\/#How_to_Match_Butterfly_Valve_Specifications_to_Your_Industry\" >Como Combinar as Especifica\u00e7\u00f5es da V\u00e1lvula Borboleta com Sua Ind\u00fastria\u00a0<\/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\/how-to-choose-butterfly-valve\/#Oil_and_Gas\" >\u00d3leo e g\u00e1s<\/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\/how-to-choose-butterfly-valve\/#Water_Treatment\" >Tratamento de \u00e1gua<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#Chemical_Processing\" >Processamento Qu\u00edmico<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#Food_and_Beverage\" >Alimentos e bebidas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#HVAC_and_Building_Services\" >HVAC e servi\u00e7os de constru\u00e7\u00e3o<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#Conclusion\" >Conclus\u00e3o<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">As v\u00e1lvulas borboleta s\u00e3o v\u00e1lvulas de quarto de volta amplamente utilizadas em <a href=\"https:\/\/www.xintaivalves.com\/pt\/blog\/flow-control-valve-comprehensive-guide\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/flow-control-valve-comprehensive-guide\/\" rel=\"noreferrer noopener\">controle de fluxo<\/a> aplica\u00e7\u00f5es industriais.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Existem seis crit\u00e9rios a serem levados em considera\u00e7\u00e3o ao selecionar uma v\u00e1lvula apropriada para o seu projeto. Sendo um engenheiro de compras, voc\u00ea precisa avaliar o tipo de fluido, press\u00e3o\/temperatura, aplica\u00e7\u00e3o da v\u00e1lvula, dimens\u00f5es da v\u00e1lvula, compatibilidade com materiais e m\u00e9todo de opera\u00e7\u00e3o da v\u00e1lvula.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Esse <a href=\"https:\/\/www.xintaivalves.com\/pt\/collection\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>guia de sele\u00e7\u00e3o de v\u00e1lvula borboleta<\/strong><\/a> fornece aos gerentes de compras e engenheiros uma estrutura clara. Abrange pe\u00e7as da v\u00e1lvula, tipos de conex\u00e3o, materiais da sede e condi\u00e7\u00f5es de opera\u00e7\u00e3o.\u00a0\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_are_the_Components_of_a_Butterfly_Valve\"><\/span><strong>Quais s\u00e3o os Componentes de uma V\u00e1lvula Borboleta?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cada tipo de v\u00e1lvula borboleta possui os mesmos cinco componentes principais. Conhecer as diferentes <a href=\"https:\/\/www.xintaivalves.com\/pt\/butterfly-valve-collection\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>pe\u00e7as da v\u00e1lvula borboleta<\/strong><\/a> evita erros de especifica\u00e7\u00e3o e reparos ou substitui\u00e7\u00f5es dispendiosas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Estude o diagrama abaixo para ajud\u00e1-lo a entender como os diferentes componentes funcionam:<\/p>\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\u724754-1024x512.webp\" alt=\"RESUMO DOS COMPONENTES DA V\u00c1LVULA BORBOLETA\" class=\"wp-image-15731\" style=\"width:604px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724754-1024x512.webp 1024w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724754-300x150.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724754-768x384.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724754-18x9.webp 18w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724754.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Butterfly_Valve_Types_by_Body_and_Connection_Style\"><\/span><strong>Tipos de V\u00e1lvulas Borboleta por Estilo de Corpo e Conex\u00e3o<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O estilo de conex\u00e3o determina como a v\u00e1lvula \u00e9 montada em sua tubula\u00e7\u00e3o. Tamb\u00e9m afeta o acesso de manuten\u00e7\u00e3o e a capacidade de press\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Existem tr\u00eas tipos de corpo padr\u00e3o, mais dois designs exc\u00eantricos de alto desempenho para servi\u00e7os exigentes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Wafer_Butterfly_Valve\"><\/span><strong>V\u00e1lvula Borboleta Wafer<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"299\" height=\"484\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724755.webp\" alt=\"\" class=\"wp-image-15732\" style=\"width:148px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724755.webp 299w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724755-185x300.webp 185w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724755-7x12.webp 7w\" sizes=\"(max-width: 299px) 100vw, 299px\" \/><figcaption class=\"wp-element-caption\"><strong>V\u00e1lvula Borboleta Lug<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">O <a href=\"https:\/\/www.xintaivalves.com\/pt\/products\/centerline-wafer-type-butterfly-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">v\u00e1lvula borboleta tipo wafer<\/a> fica entre duas flanges de tubula\u00e7\u00e3o. Parafusos passantes o prendem no lugar.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c9 o projeto mais leve e econ\u00f4mico. Ideal para <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>, processamento de alimentos e linhas de transfer\u00eancia qu\u00edmica. No entanto, n\u00e3o \u00e9 adequado para servi\u00e7o em extremidade morta. Ambas as flanges devem permanecer no lugar.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Este tipo de v\u00e1lvula tamb\u00e9m \u00e9 conhecido como <strong>v\u00e1lvula BF<\/strong>. \u201cBF\u201d \u00e9 uma abrevia\u00e7\u00e3o de \u201cButterfly\u201d (Borboleta). No entanto, diferentes fabricantes t\u00eam significados diferentes dependendo do contexto de sua ind\u00fastria.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Uma v\u00e1lvula borboleta tipo lug possui insertos roscados no corpo da v\u00e1lvula que aceitam parafusos de cada flange independentemente. Isso permite a remo\u00e7\u00e3o da tubula\u00e7\u00e3o a jusante sem perturbar a v\u00e1lvula.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e1lvulas tipo lug s\u00e3o usadas onde o acesso de manuten\u00e7\u00e3o \u00e9 frequente ou onde o isolamento em extremidade morta \u00e9 necess\u00e1rio.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Flanged_Butterfly_Valve\"><\/span><strong>V\u00e1lvula Borboleta Flangeada<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Uma v\u00e1lvula borboleta flangeada possui flanges integrais que se conectam diretamente \u00e0s flanges de tubula\u00e7\u00e3o correspondentes. Este projeto suporta classifica\u00e7\u00f5es de press\u00e3o e temperatura mais altas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Este projeto \u00e9 preferido para refinarias, gasodutos petroqu\u00edmicos e processos industriais de alto ciclo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Projetos Duplo Exc\u00eantrico e Triplo Exc\u00eantrico<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"300\" height=\"489\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724756.webp\" alt=\"\" class=\"wp-image-15733\" style=\"aspect-ratio:0.6135250599145566;width:169px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724756.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724756-184x300.webp 184w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724756-7x12.webp 7w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption class=\"wp-element-caption\">V\u00e1lvula Borboleta Exc\u00eantrica Dupla<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">V\u00e1lvulas duplo exc\u00eantricas (duplo descentralizado) reduzem o desgaste do assento e s\u00e3o adequadas para estrangulamento em press\u00f5es de at\u00e9 Classe 300.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e1lvulas triplo exc\u00eantricas usam veda\u00e7\u00e3o metal-metal. Elas lidam com vapor, g\u00e1s de combust\u00e3o e meios abrasivos em temperaturas de at\u00e9 600\u00b0C. Essas v\u00e1lvulas se alinham com <strong>tipos de assento de v\u00e1lvula borboleta<\/strong> que requerem assentos de liga de face dura em vez de materiais elastom\u00e9ricos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Butterfly_Valve_Seat_Types_and_Seat_Material_Compatibility_Chart\"><\/span><strong>Tipos de Sede de V\u00e1lvula Borboleta e Tabela de Compatibilidade de Material da Sede<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O assento cria a veda\u00e7\u00e3o prim\u00e1ria entre o disco e o corpo da v\u00e1lvula. O material incorreto do assento causa falha prematura, vazamentos ou contamina\u00e7\u00e3o qu\u00edmica.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cinco materiais de sede cobrem a maioria das aplica\u00e7\u00f5es industriais. Cada um tem um teto de temperatura definido e um perfil de compatibilidade qu\u00edmica.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Esse <strong>Tabela de compatibilidade de materiais de sede de v\u00e1lvula borboleta<\/strong> \u00e9 um ponto de partida. Para \u00e1cidos concentrados ou servi\u00e7o de m\u00eddia mista, solicite uma revis\u00e3o de compatibilidade de material do seu fornecedor de v\u00e1lvulas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tabela de Compatibilidade de Materiais de Sede de V\u00e1lvula Borboleta<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Material do Assento<\/strong><\/td><td><strong>Faixa de temperatura<\/strong><\/td><td><strong>M\u00eddia Compat\u00edvel<\/strong><\/td><td><strong>Evitar<\/strong><\/td><td><strong>Classe de Press\u00e3o<\/strong><\/td><\/tr><tr><td><strong>EPDM<\/strong><\/td><td>-20\u00b0C a +120\u00b0C<\/td><td>\u00c1gua, vapor, produtos qu\u00edmicos leves<\/td><td>\u00d3leos, solventes<\/td><td>PN10\u2013PN16<\/td><\/tr><tr><td><strong>NBR (Nitrila)<\/strong><\/td><td>-20\u00b0C a +80\u00b0C<\/td><td>\u00d3leo, g\u00e1s, combust\u00edveis<\/td><td>\u00c1cidos, oz\u00f4nio<\/td><td>PN10\u2013PN16<\/td><\/tr><tr><td><strong>PTFE<\/strong><\/td><td><strong>-40\u00b0C a +180\u00b0C<\/strong><\/td><td><strong>Produtos qu\u00edmicos, \u00e1cidos, m\u00eddia corrosiva<\/strong><\/td><td>Abrasivos<\/td><td>PN10\u2013PN25<\/td><\/tr><tr><td><strong>Viton (FKM)<\/strong><\/td><td>-20\u00b0C to +200\u00b0C<\/td><td>Solvents, acids, high-temp fluids<\/td><td>Ketones<\/td><td>PN10\u2013PN25<\/td><\/tr><tr><td><strong>Metal (Stainless \/ Alloy)<\/strong><\/td><td>Up to +600\u00b0C<\/td><td>Steam, high-temp gas, abrasive slurries<\/td><td>\u2014<\/td><td>Classe 150\u2013600<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PTFE seat temperature range<\/strong>: -40\u00b0C to +180\u00b0C (356\u00b0F). PTFE resists virtually all acids, solvents, and corrosive chemicals. It is the standard choice for chemical processing and high-purity pharmaceutical lines.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">EPDM is the workhorse seat for water and steam service up to 120\u00b0C. NBR handles hydrocarbon media well but degrades quickly in acid or ozone exposure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Viton (FKM) extends the working ceiling to 200\u00b0C. Use it for hot solvents and aggressive chemical service where PTFE seat limitations apply.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Metal seats (stainless or Stellite-overlay alloy) are specified for triple-eccentric valves in high-temperature steam, power generation, and abrasive slurry lines.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Five_Key_Influences_for_Right_Butterfly_Valve_Selection\"><\/span><strong>Cinco Influ\u00eancias Chave para a Sele\u00e7\u00e3o Correta da V\u00e1lvula Borboleta<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If you want your industrial piping system to run efficiently, follow this checklist for all your projects.&nbsp;<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Fluid Characteristics. <\/strong>Identify temperature, pressure, viscosity, and chemical composition. Confirm whether the media contains solids or abrasive particles. These factors set both body material and seat material requirements.<\/li>\n\n\n\n<li><strong>Operating Pressure and Pressure Class. <\/strong>Match the valve pressure rating to the system design pressure. Common ratings: PN10, PN16, PN25, Class 150, and Class 300. Always include a safety margin above peak operating pressure.<\/li>\n\n\n\n<li><strong>Pipeline Size and Flow Rate. <\/strong>Valve bore must match pipe bore. Undersized valves create excessive pressure drop. Oversized valves lose throttling control at low flow.<\/li>\n\n\n\n<li><strong>End Connection Standard. <\/strong>Confirm the flange drilling pattern: ANSI\/ASME B16.5, DIN EN 1092-1, JIS B2220, or BS 4504. Mismatched standards require adapters and create leak points.<\/li>\n\n\n\n<li><strong>Actuation and Control Requirements. <\/strong>High-cycle or remote-controlled lines need pneumatic or electric actuators with ISO 5211 mounting pads and positioners. Low-cycle manual service uses a handwheel or gear operator.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Match_Butterfly_Valve_Specifications_to_Your_Industry\"><\/span><strong>Como Combinar as Especifica\u00e7\u00f5es da V\u00e1lvula Borboleta com Sua Ind\u00fastria\u00a0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724757-1024x512.webp\" alt=\"Adeque as especifica\u00e7\u00f5es da v\u00e1lvula borboleta \u00e0 sua ind\u00fastria\" class=\"wp-image-15734\" style=\"width:608px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724757-1024x512.webp 1024w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724757-300x150.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724757-768x384.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724757-18x9.webp 18w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724757.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">There are very big differences in valve specifications depending on which industry you work in. The same valve type may require different seat, disc, or actuator types.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Below are real-world applications of butterfly valves:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Oil_and_Gas\"><\/span><strong>\u00d3leo e g\u00e1s<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Specify triple-eccentric or <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\">deslocamento duplo<\/a> valves with metal seats. API 609 compliance is mandatory. Working pressures often reach Class 300 or Class 600.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You may be aware of the <strong>XXV valve, <\/strong>which is a safety-critical emergency shutdown valve used in oil &amp; gas, chemical plants, and industrial facilities. The \u201cXXV\u201d designation represents a valve tagging system that clearly reflects function and safety criticality.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Water_Treatment\"><\/span><strong>Tratamento de \u00e1gua<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Wafer valves with EPDM seats handle municipal water service. Specify NSF\/ANSI 61 certification for potable water contact. Verify leakage class per EN 12266-1.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Chemical_Processing\"><\/span><strong>Processamento Qu\u00edmico<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PTFE-lined or PTFE-seated valves are standard. The <strong>PTFE seat temperature range<\/strong> de -40\u00b0C a +180\u00b0C cobre a maioria das linhas de processo qu\u00edmico. Especifique um design de disco de passagem total para eliminar zonas mortas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Food_and_Beverage\"><\/span><strong>Alimentos e bebidas<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Os materiais do assento e do disco devem atender \u00e0 conformidade de contato com alimentos FDA 21 CFR ou EU 1935\/2004. Especifique acabamentos de superf\u00edcie lisos (Ra \u2264 0,8 \u03bcm) para limpeza CIP\/SIP.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"HVAC_and_Building_Services\"><\/span><strong>HVAC e servi\u00e7os de constru\u00e7\u00e3o<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e1lvulas tipo wafer com assentos de EPDM cobrem a maioria dos circuitos de \u00e1gua gelada e \u00e1gua quente. Selecione v\u00e1lvulas com classifica\u00e7\u00e3o PN10 ou PN16. Baixo peso e dimens\u00f5es compactas face a face reduzem o custo de instala\u00e7\u00e3o.<\/p>\n\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\/product\/butterfly-valve\/\" target=\"_blank\">\n  <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2022\/02\/%E5%AF%B9%E7%84%8A%E5%BC%8F%E4%B8%89%E5%81%8F%E5%BF%83%E5%A4%9A%E5%B1%82%E6%AC%A1%E7%A1%AC%E5%AF%86%E5%B0%81%E8%9D%B6%E9%98%80.jpg\" alt=\"V\u00e1lvula Borboleta\">\n  <div class=\"hero-content\">\n    <div class=\"hero-title\">\ud83d\udee0 V\u00e1lvula Borboleta<\/div>\n    <div class=\"hero-description\">V\u00e1lvula borboleta projetada com precis\u00e3o para controle eficiente de fluxo em diversas aplica\u00e7\u00f5es industriais. Desempenho confi\u00e1vel para sistemas de alta e baixa press\u00e3o.<\/div>\n    <span class=\"hero-link\">Explorar produto<\/span>\n  <\/div>\n<\/a>\n\n<\/body>\n<\/html>\n\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\">O <strong>guia de sele\u00e7\u00e3o de v\u00e1lvula borboleta<\/strong> ajuda engenheiros e equipes de compras a adequar a v\u00e1lvula ao sistema.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O meio fluido, a temperatura, a classifica\u00e7\u00e3o de press\u00e3o, o tipo de conex\u00e3o e o tipo de atua\u00e7\u00e3o s\u00e3o os fatores que determinar\u00e3o a v\u00e1lvula a ser usada para sua aplica\u00e7\u00e3o. Todos esses crit\u00e9rios devem ser atendidos ao comprar quaisquer v\u00e1lvulas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.xintaivalves.com\/pt\/\" target=\"_blank\" rel=\"noreferrer noopener\">V\u00e1lvula Xintai<\/a> fabrica de acordo com os padr\u00f5es de gest\u00e3o de qualidade ISO 9001. Nossos produtos possuem marca\u00e7\u00e3o CE e s\u00e3o fabricados de acordo com os padr\u00f5es API, ANSI, DIN, JIS e BS. Isso significa que as v\u00e1lvulas Xintai se encaixam em sistemas de tubula\u00e7\u00e3o internacionais sem hardware de convers\u00e3o ou adaptadores personalizados.<\/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>Butterfly valves are quarter-turn valves widely utilized in flow control industrial applications.\u00a0 There are six criteria to be taken into account while selecting an appropriate valve for your project. Being a procurement engineer, you need to assess fluid type, pressure\/temperature, valve application, valve dimensions, compatibility with materials, and valve operation method. This butterfly valve selection [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":15730,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-15729","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\/15729","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=15729"}],"version-history":[{"count":1,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/posts\/15729\/revisions"}],"predecessor-version":[{"id":15736,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/posts\/15729\/revisions\/15736"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/media\/15730"}],"wp:attachment":[{"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/media?parent=15729"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/categories?post=15729"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/pt\/wp-json\/wp\/v2\/tags?post=15729"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}