{"id":717,"date":"2025-07-30T06:33:09","date_gmt":"2025-07-30T06:33:09","guid":{"rendered":"https:\/\/www.tgvalve.com\/?p=717"},"modified":"2025-08-04T07:17:29","modified_gmt":"2025-08-04T07:17:29","slug":"concentric-vs-eccentric-butterfly-valve","status":"publish","type":"post","link":"https:\/\/www.tgvalve.com\/pt\/blog\/butterfly-valve\/comparison\/concentric-vs-eccentric-butterfly-valve\/","title":{"rendered":"V\u00e1lvulas Borboleta Conc\u00eantricas vs. Exc\u00eantricas: Uma Escolha Fundamental"},"content":{"rendered":"

Quando se trata de controle de fluxo, a escolha entre uma v\u00e1lvula borboleta conc\u00eantrica e uma exc\u00eantrica \u00e9 mais do que apenas t\u00e9cnica \u2014 \u00e9 fundamental para o sucesso do seu sistema. Como fabricante l\u00edder de v\u00e1lvulas industriais, a Tiangong Valve entende o papel crucial da sele\u00e7\u00e3o do tipo certo de v\u00e1lvula para garantir a efici\u00eancia, a durabilidade e a rela\u00e7\u00e3o custo-benef\u00edcio do sistema.<\/p>\n\n\n\n\n\n\n \n 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: #0066cc;\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: #004c99;\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.tgvalve.com\/pt\/\" target=\"_blank\">\n <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753926154000.webp\" alt=\"Fabricante de v\u00e1lvulas certificado\">\n <div class=\"hero-content\">\n <div class=\"hero-title\">Fabricante de v\u00e1lvulas certificado<\/div>\n <div class=\"hero-description\">Fundado em 1985, o CTGV Valve Group produz v\u00e1lvulas industriais direto da f\u00e1brica, certificadas pela CE, API, ISO \u2013 sem intermedi\u00e1rios, apenas resultados. <\/div>\n <span class=\"hero-link\">Ver produto<\/span>\n <\/div>\n<\/a>\n\n<\/body>\n<\/html>\n\n\n\n<p class=\"wp-block-paragraph\">Este artigo detalha as principais diferen\u00e7as entre v\u00e1lvulas borboleta conc\u00eantricas e exc\u00eantricas em um formato claro e acess\u00edvel para iniciantes. Seja na \u00e1rea de tratamento de \u00e1gua, petr\u00f3leo e g\u00e1s ou processamento qu\u00edmico, este guia ajudar\u00e1 voc\u00ea a escolher a v\u00e1lvula certa para as necessidades de press\u00e3o, precis\u00e3o e desempenho do seu projeto.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>O que \u00e9 uma v\u00e1lvula borboleta?<\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><a href=\"https:\/\/www.tgvalve.com\/pt\/product\/concentric-butterfly-valve\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"416\" height=\"537\" src=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753940850550.webp\" alt=\"V\u00e1lvula Borboleta Centr\u00eanica\" class=\"wp-image-703\" style=\"width:304px;height:auto\" srcset=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753940850550.webp 416w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753940850550-387x500.webp 387w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753940850550-232x300.webp 232w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753940850550-9x12.webp 9w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753940850550-58x75.webp 58w\" sizes=\"auto, (max-width:767px) 416px, 416px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Uma v\u00e1lvula borboleta \u00e9 um dispositivo de controle de fluxo que utiliza um disco girat\u00f3rio para iniciar, interromper ou regular o fluxo de fluidos em tubula\u00e7\u00f5es. Ao contr\u00e1rio das v\u00e1lvulas de esfera ou gaveta, as v\u00e1lvulas borboleta s\u00e3o compactas, r\u00e1pidas de operar e ideais para sistemas onde espa\u00e7o, velocidade e efici\u00eancia s\u00e3o importantes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Eles v\u00eam em designs diferentes, mas a distin\u00e7\u00e3o mais importante \u00e9 entre os tipos conc\u00eantricos (centralizados) e exc\u00eantricos (deslocados).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Como funcionam as v\u00e1lvulas borboleta conc\u00eantricas<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Em uma v\u00e1lvula borboleta conc\u00eantrica, a haste e o disco s\u00e3o perfeitamente centralizados. Isso significa que o disco gira em torno da linha central do tubo e veda pressionando diretamente sobre uma sede resiliente.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"686\" src=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/ab1bf8cc-7d01-471f-b4a2-939d1842367d-1200x686.webp\" alt=\"V\u00e1lvulas Borboleta Conc\u00eantricas vs. Exc\u00eantricas: Uma Escolha Fundamental\" class=\"wp-image-736\" style=\"width:574px;height:auto\" srcset=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/ab1bf8cc-7d01-471f-b4a2-939d1842367d-1200x686.webp 1200w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/ab1bf8cc-7d01-471f-b4a2-939d1842367d-800x457.webp 800w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/ab1bf8cc-7d01-471f-b4a2-939d1842367d-500x286.webp 500w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/ab1bf8cc-7d01-471f-b4a2-939d1842367d-300x171.webp 300w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/ab1bf8cc-7d01-471f-b4a2-939d1842367d-768x439.webp 768w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/ab1bf8cc-7d01-471f-b4a2-939d1842367d-1536x877.webp 1536w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/ab1bf8cc-7d01-471f-b4a2-939d1842367d-18x10.webp 18w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/ab1bf8cc-7d01-471f-b4a2-939d1842367d-131x75.webp 131w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/ab1bf8cc-7d01-471f-b4a2-939d1842367d-480x274.webp 480w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/ab1bf8cc-7d01-471f-b4a2-939d1842367d.webp 1600w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1200px) 100vw, 1200px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>Principais caracter\u00edsticas:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Projeto:<\/strong> Eixo e disco centralizados.<\/li>\n\n\n\n<li><strong>Selo:<\/strong> Assento de borracha em contato direto com o disco.<\/li>\n\n\n\n<li><strong>Comportamento do fluxo:<\/strong> Bom para regula\u00e7\u00e3o e desligamento de fluxo moderado.<\/li>\n\n\n\n<li><strong>Classifica\u00e7\u00e3o de press\u00e3o:<\/strong> Baixa a m\u00e9dia press\u00e3o (ideal para PN16\/150LB).<\/li>\n\n\n\n<li><strong>Aplica\u00e7\u00f5es:<\/strong> Sistemas de \u00e1gua, HVAC e servi\u00e7os p\u00fablicos em geral.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Esta configura\u00e7\u00e3o \u00e9 frequentemente referida como uma <strong>v\u00e1lvula de sede resiliente<\/strong>, e seu design simples o torna acess\u00edvel e f\u00e1cil de manter.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Como funcionam as v\u00e1lvulas borboleta exc\u00eantricas<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Uma v\u00e1lvula borboleta exc\u00eantrica tem sua haste posicionada longe do centro do disco. Este design deslocado permite que o disco se levante gradualmente da sede durante a abertura, o que reduz o atrito de contato e melhora o desempenho da veda\u00e7\u00e3o sob condi\u00e7\u00f5es de alta press\u00e3o.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"686\" src=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/59370003-64eb-4c9e-8f33-3aa66f09f9dc-1200x686.webp\" alt=\"V\u00e1lvulas Borboleta Conc\u00eantricas vs. Exc\u00eantricas: Uma Escolha Fundamental\" class=\"wp-image-735\" style=\"width:537px;height:auto\" srcset=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/59370003-64eb-4c9e-8f33-3aa66f09f9dc-1200x686.webp 1200w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/59370003-64eb-4c9e-8f33-3aa66f09f9dc-800x457.webp 800w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/59370003-64eb-4c9e-8f33-3aa66f09f9dc-500x286.webp 500w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/59370003-64eb-4c9e-8f33-3aa66f09f9dc-300x171.webp 300w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/59370003-64eb-4c9e-8f33-3aa66f09f9dc-768x439.webp 768w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/59370003-64eb-4c9e-8f33-3aa66f09f9dc-1536x877.webp 1536w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/59370003-64eb-4c9e-8f33-3aa66f09f9dc-18x10.webp 18w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/59370003-64eb-4c9e-8f33-3aa66f09f9dc-131x75.webp 131w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/59370003-64eb-4c9e-8f33-3aa66f09f9dc-480x274.webp 480w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/59370003-64eb-4c9e-8f33-3aa66f09f9dc.webp 1600w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1200px) 100vw, 1200px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>Principais caracter\u00edsticas:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Projeto:<\/strong> O eixo \u00e9 deslocado da linha central do tubo (deslocamento simples, duplo ou triplo).<\/li>\n\n\n\n<li><strong>Selo:<\/strong> Assento de metal laminado ou composto garante uma veda\u00e7\u00e3o mais firme.<\/li>\n\n\n\n<li><strong>Comportamento do fluxo:<\/strong> Oferece fluxo suave, desgaste m\u00ednimo do assento e melhor desempenho de desligamento.<\/li>\n\n\n\n<li><strong>Classifica\u00e7\u00e3o de press\u00e3o:<\/strong> Adequado para ambientes de alta press\u00e3o\/alta temperatura (at\u00e9 PN100\/600LB).<\/li>\n\n\n\n<li><strong>Aplica\u00e7\u00f5es:<\/strong> Petr\u00f3leo e g\u00e1s, processamento qu\u00edmico, gera\u00e7\u00e3o de energia.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Na Tiangong Valve, nossas v\u00e1lvulas borboleta de deslocamento triplo s\u00e3o projetadas com veda\u00e7\u00e3o metal com metal e desempenho de vazamento zero para sistemas exigentes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>V\u00e1lvula borboleta conc\u00eantrica vs exc\u00eantrica: compara\u00e7\u00e3o lado a lado<\/strong><\/h2>\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 conc\u00eantrica<\/strong><\/td><td><strong>V\u00e1lvula borboleta exc\u00eantrica<\/strong><\/td><\/tr><tr><td><strong>Posi\u00e7\u00e3o do disco e do eixo<\/strong><\/td><td>Alinhado ao longo da linha central do pipeline<\/td><td>Deslocamento do eixo em rela\u00e7\u00e3o ao eixo do disco (deslocamento simples, duplo ou triplo)<\/td><\/tr><tr><td><strong>Projeto de veda\u00e7\u00e3o<\/strong><\/td><td>Selagem direta com assento de elast\u00f4mero<\/td><td>Selagem progressiva com materiais met\u00e1licos ou comp\u00f3sitos<\/td><\/tr><tr><td><strong>Manuseio de press\u00e3o<\/strong><\/td><td>Adequado para press\u00f5es baixas a moderadas (por exemplo, HVAC, \u00e1gua)<\/td><td>Projetado para ambientes de alta press\u00e3o, como usinas qu\u00edmicas ou de energia<\/td><\/tr><tr><td><strong>Resist\u00eancia ao desgaste<\/strong><\/td><td>Moderado, devido ao contato cont\u00ednuo entre o disco e a sede<\/td><td>Excelente, com desgaste reduzido devido ao atrito m\u00ednimo durante a opera\u00e7\u00e3o<\/td><\/tr><tr><td><strong>Regula\u00e7\u00e3o de fluxo<\/strong><\/td><td>Oferece controle de fluxo b\u00e1sico<\/td><td>Oferece modula\u00e7\u00e3o precisa e desligamento mais firme<\/td><\/tr><tr><td><strong>Frequ\u00eancia de manuten\u00e7\u00e3o<\/strong><\/td><td>Pode exigir mais manuten\u00e7\u00e3o em condi\u00e7\u00f5es adversas<\/td><td>Menor manuten\u00e7\u00e3o, mesmo em condi\u00e7\u00f5es de fluidos exigentes<\/td><\/tr><tr><td><strong>Efici\u00eancia de custos<\/strong><\/td><td>Menor investimento inicial<\/td><td>Custo inicial mais alto, mas maior vida \u00fatil e menores custos de manuten\u00e7\u00e3o<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Onde as v\u00e1lvulas conc\u00eantricas funcionam melhor<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e1lvulas borboleta conc\u00eantricas s\u00e3o ideais para sistemas de uso geral onde:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A press\u00e3o e a temperatura s\u00e3o baixas a moderadas.<\/li>\n\n\n\n<li>S\u00e3o utilizados fluidos limpos, como \u00e1gua ou ar.<\/li>\n\n\n\n<li>Custo e facilidade de manuten\u00e7\u00e3o s\u00e3o prioridades.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Eles s\u00e3o amplamente utilizados em:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sistemas municipais de \u00e1gua<\/strong><\/li>\n\n\n\n<li><strong>\u00c1gua gelada e HVAC<\/strong><\/li>\n\n\n\n<li><strong>Irriga\u00e7\u00e3o e prote\u00e7\u00e3o contra inc\u00eandio<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Seu corpo leve em formato de wafer torna a instala\u00e7\u00e3o r\u00e1pida e econ\u00f4mica.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Saber mais:<a href=\"https:\/\/www.tgvalve.com\/pt\/product-category\/butterfly-valve\/concentric-butterfly-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\"> V\u00e1lvulas borboleta conc\u00eantricas em Tiangong<\/a><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.tgvalve.com\/pt\/product-category\/butterfly-valve\/concentric-butterfly-valve\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"546\" src=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753943213764-1200x546.webp\" alt=\"S\u00e9rie de v\u00e1lvulas borboleta conc\u00eantricas\" class=\"wp-image-743\" srcset=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753943213764-1200x546.webp 1200w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753943213764-800x364.webp 800w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753943213764-500x228.webp 500w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753943213764-300x137.webp 300w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753943213764-768x350.webp 768w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753943213764-18x8.webp 18w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753943213764-150x68.webp 150w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753943213764-480x218.webp 480w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753943213764.webp 1294w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1200px) 100vw, 1200px\" \/><\/a><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong>Onde as v\u00e1lvulas exc\u00eantricas se destacam<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e1lvulas borboleta exc\u00eantricas, especialmente modelos com deslocamento duplo ou triplo, prosperam em condi\u00e7\u00f5es extremas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ambientes de alta press\u00e3o e temperatura<\/li>\n\n\n\n<li>Meio fluido abrasivo, corrosivo ou sujo<\/li>\n\n\n\n<li>Sistemas que necessitam de fechamento herm\u00e9tico e integridade de veda\u00e7\u00e3o de longo prazo<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ind\u00fastrias comuns incluem:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Oleodutos e gasodutos<\/strong><\/li>\n\n\n\n<li><strong>Processamento qu\u00edmico<\/strong><\/li>\n\n\n\n<li><strong>Gera\u00e7\u00e3o de vapor e energia<\/strong><\/li>\n\n\n\n<li><strong>Servi\u00e7os de refino e alta temperatura<\/strong><strong><br><\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Na Tiangong, nossas v\u00e1lvulas exc\u00eantricas de alto desempenho s\u00e3o constru\u00eddas com superf\u00edcies de veda\u00e7\u00e3o usinadas com precis\u00e3o e ligas premium como SS316 e a\u00e7o inoxid\u00e1vel duplex para confiabilidade excepcional.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Escolhendo a v\u00e1lvula certa para o seu sistema<\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"686\" src=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/18aa0856-3db1-4d46-ba51-45398dbe67d5-1200x686.webp\" alt=\"V\u00e1lvulas Borboleta Conc\u00eantricas vs. Exc\u00eantricas: Uma Escolha Fundamental\" class=\"wp-image-734\" style=\"width:371px;height:auto\" srcset=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/18aa0856-3db1-4d46-ba51-45398dbe67d5-1200x686.webp 1200w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/18aa0856-3db1-4d46-ba51-45398dbe67d5-800x457.webp 800w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/18aa0856-3db1-4d46-ba51-45398dbe67d5-500x286.webp 500w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/18aa0856-3db1-4d46-ba51-45398dbe67d5-300x171.webp 300w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/18aa0856-3db1-4d46-ba51-45398dbe67d5-768x439.webp 768w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/18aa0856-3db1-4d46-ba51-45398dbe67d5-1536x877.webp 1536w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/18aa0856-3db1-4d46-ba51-45398dbe67d5-18x10.webp 18w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/18aa0856-3db1-4d46-ba51-45398dbe67d5-131x75.webp 131w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/18aa0856-3db1-4d46-ba51-45398dbe67d5-480x274.webp 480w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/18aa0856-3db1-4d46-ba51-45398dbe67d5.webp 1600w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1200px) 100vw, 1200px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Ao decidir entre um projeto de v\u00e1lvula borboleta conc\u00eantrico ou exc\u00eantrico, considere:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. Tipo de fluido e pureza<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Conc\u00eantrico<\/strong> As v\u00e1lvulas s\u00e3o ideais para meios limpos e n\u00e3o corrosivos, como \u00e1gua ou ar.<\/li>\n\n\n\n<li><strong>Exc\u00eantrico<\/strong> As v\u00e1lvulas s\u00e3o mais adequadas para fluidos abrasivos, de alta temperatura ou quimicamente agressivos, como vapor ou lamas.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. Press\u00e3o e temperatura de opera\u00e7\u00e3o<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Modelos conc\u00eantricos<\/strong> geralmente apresentam bom desempenho em sistemas de at\u00e9 150 LB.<\/li>\n\n\n\n<li><strong>Designs exc\u00eantricos<\/strong>, especialmente os tipos de deslocamento duplo ou triplo, podem suportar press\u00f5es de at\u00e9 600 lb e temperaturas elevadas quando combinados com materiais apropriados.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. Requisitos de regula\u00e7\u00e3o de fluxo<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Escolher <strong>v\u00e1lvulas conc\u00eantricas<\/strong> para necessidades simples de abertura\/fechamento ou de estrangulamento leve.<\/li>\n\n\n\n<li>Optar por <strong>v\u00e1lvulas exc\u00eantricas<\/strong> quando o controle preciso do fluxo e o fechamento herm\u00e9tico s\u00e3o essenciais.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. Expectativas de manuten\u00e7\u00e3o<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>V\u00e1lvulas conc\u00eantricas<\/strong> s\u00e3o f\u00e1ceis de instalar e fazer manuten\u00e7\u00e3o, mas podem exigir manuten\u00e7\u00e3o mais frequente.<\/li>\n\n\n\n<li><strong>V\u00e1lvulas exc\u00eantricas<\/strong> oferecem intervalos maiores entre manuten\u00e7\u00f5es, tornando-os ideais para opera\u00e7\u00f5es exigentes e de alto valor.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Caso n\u00e3o tenha certeza, nossos engenheiros podem ajudar a analisar suas necessidades e recomendar o melhor projeto de v\u00e1lvula para seu sistema.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Por que os engenheiros escolhem a Tiangong Valve<\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.tgvalve.com\/pt\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"558\" src=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925978161-1200x558.webp\" alt=\"Fabricante especialista em v\u00e1lvulas f\u00e1brica CTGV\" class=\"wp-image-634\" srcset=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925978161-1200x558.webp 1200w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925978161-800x372.webp 800w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925978161-500x233.webp 500w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925978161-300x140.webp 300w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925978161-768x357.webp 768w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925978161-18x8.webp 18w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925978161-150x70.webp 150w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925978161-480x223.webp 480w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925978161.webp 1401w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1200px) 100vw, 1200px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Na Tiangong Valve, acumulamos mais de 35 anos de inova\u00e7\u00e3o na fabrica\u00e7\u00e3o de v\u00e1lvulas industriais. Nossas v\u00e1lvulas borboleta conc\u00eantricas e exc\u00eantricas s\u00e3o:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Certificado API, ISO, CE<\/strong><\/li>\n\n\n\n<li><strong>Personaliz\u00e1vel para classe de press\u00e3o, materiais de acabamento e tipos de veda\u00e7\u00e3o<\/strong><\/li>\n\n\n\n<li><strong>Constru\u00eddo com precis\u00e3o usinada em CNC e mais de 13 pontos de verifica\u00e7\u00e3o de controle de qualidade<\/strong><\/li>\n\n\n\n<li><strong>Dispon\u00edvel com prazos de entrega r\u00e1pidos e envio global<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Atendemos com orgulho empreiteiros de EPC, OEMs e distribuidores em todo o Oriente M\u00e9dio, Europa, Sudeste Asi\u00e1tico e Am\u00e9ricas. Nossas v\u00e1lvulas s\u00e3o instaladas em infraestruturas cr\u00edticas em usinas de energia, refinarias e sistemas de tratamento de \u00e1gua em todo o mundo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Perguntas frequentes<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Qual \u00e9 a principal diferen\u00e7a entre v\u00e1lvulas borboleta conc\u00eantricas e exc\u00eantricas?<\/strong><strong><br><\/strong> Uma v\u00e1lvula conc\u00eantrica possui um disco centralizado e \u00e9 ideal para sistemas de baixa press\u00e3o. As v\u00e1lvulas exc\u00eantricas possuem discos deslocados para alta press\u00e3o e melhor veda\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quando devo usar uma v\u00e1lvula exc\u00eantrica dupla ou tripla?<\/strong><strong><br><\/strong> Utilize v\u00e1lvulas exc\u00eantricas duplas\/triplas ao lidar com aplica\u00e7\u00f5es de alta temperatura ou alta press\u00e3o que exigem fechamento herm\u00e9tico.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u00e1lvulas conc\u00eantricas s\u00e3o mais baratas?<\/strong><strong><br><\/strong> Sim. V\u00e1lvulas borboleta conc\u00eantricas geralmente t\u00eam um custo inicial mais baixo e s\u00e3o mais f\u00e1ceis de instalar.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/www.tgvalve.com\/pt\/about-us\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925687153.webp\" alt=\"Fabricante especialista em v\u00e1lvulas CTGV home\" class=\"wp-image-633\" style=\"width:663px;height:auto\" srcset=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925687153.webp 768w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925687153-500x333.webp 500w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925687153-300x200.webp 300w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925687153-18x12.webp 18w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925687153-113x75.webp 113w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925687153-480x320.webp 480w\" sizes=\"auto, (max-width:767px) 480px, (max-width:768px) 100vw, 768px\" \/><\/a><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong>Conclus\u00e3o<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Escolher entre uma v\u00e1lvula borboleta conc\u00eantrica e exc\u00eantrica pode parecer t\u00e9cnico, mas entender as condi\u00e7\u00f5es de press\u00e3o, vaz\u00e3o e fluido do seu sistema torna isso claro. V\u00e1lvulas conc\u00eantricas s\u00e3o \u00f3timas para uso geral. V\u00e1lvulas exc\u00eantricas se destacam em ambientes exigentes onde precis\u00e3o e durabilidade s\u00e3o essenciais.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na Tiangong Valve, n\u00e3o vendemos apenas v\u00e1lvulas \u2014 n\u00f3s projetamos solu\u00e7\u00f5es. Seja para uma v\u00e1lvula de alta press\u00e3o robusta para perfura\u00e7\u00e3o offshore ou uma solu\u00e7\u00e3o econ\u00f4mica para redes de \u00e1gua, estamos aqui para apoiar o seu sucesso.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Contate-nos<\/strong> para especifica\u00e7\u00f5es de v\u00e1lvulas personalizadas, or\u00e7amentos de pedidos em grandes quantidades ou consultoria t\u00e9cnica:<a href=\"https:\/\/www.tgvalve.com\/pt\/\" target=\"_blank\" rel=\"noreferrer noopener\"> www.tgvalve.com<\/a><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.tgvalve.com\/pt\/contact\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1111\" height=\"266\" src=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925655234.webp\" alt=\"Fabricante especialista em v\u00e1lvulas CTGV entre em contato conosco\" class=\"wp-image-632\" srcset=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925655234.webp 1111w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925655234-800x192.webp 800w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925655234-500x120.webp 500w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925655234-300x72.webp 300w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925655234-768x184.webp 768w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925655234-18x4.webp 18w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925655234-150x36.webp 150w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2025\/07\/1753925655234-480x115.webp 480w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1111px) 100vw, 1111px\" \/><\/a><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>When it comes to flow control, the choice between a concentric vs eccentric butterfly valve is more than just technical\u2014it\u2019s fundamental to your system\u2019s success. As<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":733,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[],"class_list":["post-717","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-comparison"],"_links":{"self":[{"href":"https:\/\/www.tgvalve.com\/pt\/wp-json\/wp\/v2\/posts\/717","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tgvalve.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tgvalve.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tgvalve.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tgvalve.com\/pt\/wp-json\/wp\/v2\/comments?post=717"}],"version-history":[{"count":8,"href":"https:\/\/www.tgvalve.com\/pt\/wp-json\/wp\/v2\/posts\/717\/revisions"}],"predecessor-version":[{"id":779,"href":"https:\/\/www.tgvalve.com\/pt\/wp-json\/wp\/v2\/posts\/717\/revisions\/779"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tgvalve.com\/pt\/wp-json\/wp\/v2\/media\/733"}],"wp:attachment":[{"href":"https:\/\/www.tgvalve.com\/pt\/wp-json\/wp\/v2\/media?parent=717"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tgvalve.com\/pt\/wp-json\/wp\/v2\/categories?post=717"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tgvalve.com\/pt\/wp-json\/wp\/v2\/tags?post=717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}