{"id":18474,"date":"2026-03-06T14:44:50","date_gmt":"2026-03-06T06:44:50","guid":{"rendered":"https:\/\/www.boberry-mach.com\/dimensoes-de-flanges-para-juntas-sobrepostas-um-guia-completo\/"},"modified":"2026-03-26T10:25:34","modified_gmt":"2026-03-26T02:25:34","slug":"dimensoes-de-flanges-para-juntas-sobrepostas-um-guia-completo","status":"publish","type":"post","link":"https:\/\/www.boberry-mach.com\/pt-br\/dimensoes-de-flanges-para-juntas-sobrepostas-guia\/","title":{"rendered":"Dimens\u00f5es de flanges para juntas sobrepostas: um guia completo"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">A escolha do tamanho correto do flange de junta sobreposta garante a opera\u00e7\u00e3o segura e eficiente da tubula\u00e7\u00e3o. Amplamente utilizados nas ind\u00fastrias de petr\u00f3leo, g\u00e1s, qu\u00edmica, \u00e1gua e alimentos, eles oferecem flexibilidade de alinhamento e s\u00e3o compat\u00edveis com terminais de deriva\u00e7\u00e3o. A escolha do tamanho correto garante o alinhamento adequado, conex\u00f5es \u00e0 prova de vazamentos e conformidade com as normas internacionais.<\/span><\/p>\n<h2><b>Entendendo flanges de junta sobreposta<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Uma flange de junta sobreposta possui uma extremidade soldada e uma flange solta que desliza sobre ela, permitindo rota\u00e7\u00e3o livre para facilitar o alinhamento dos parafusos durante a instala\u00e7\u00e3o.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">As vantagens incluem:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Facilidade de manuten\u00e7\u00e3o: Pode ser desmontado sem cortar os tubos.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Flexibilidade de alinhamento: o flange gira livremente, independentemente do tubo.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Efici\u00eancia do material: Apenas a extremidade do tubo precisa de material resistente \u00e0 corros\u00e3o.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Versatilidade: Ideal para sistemas com requisitos de inspe\u00e7\u00e3o frequentes.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Compreender a estrutura da flange de junta sobreposta \u00e9 essencial para escolher o tamanho adequado da tubula\u00e7\u00e3o.<\/span><\/p>\n<h2><b>Par\u00e2metros-chave para dimensionamento de flanges de junta sobreposta<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">As dimens\u00f5es de um flange de junta sobreposta s\u00e3o determinadas principalmente pelos seguintes par\u00e2metros:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Di\u00e2metro Nominal do Tubo (NPS): Representa aproximadamente o di\u00e2metro interno nominal do tubo. \u00c9 padronizado para diferentes regi\u00f5es.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Di\u00e2metro externo (DE): O di\u00e2metro externo do tubo sobre o qual o flange se encaixa.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Di\u00e2metro do C\u00edrculo dos Parafusos (BCD): Dist\u00e2ncia entre os centros dos furos dos parafusos; essencial para uma conex\u00e3o adequada.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">N\u00famero de furos para parafusos: Determinado pela classifica\u00e7\u00e3o de press\u00e3o e pelo tamanho do flange.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Espessura do flange (T): Depende da classe de press\u00e3o e do tamanho do tubo.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Classe de press\u00e3o (PN \/ ANSI \/ ASME): Sistemas de alta press\u00e3o exigem flanges mais espessas e di\u00e2metros de parafusos maiores.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">A devida considera\u00e7\u00e3o desses fatores garante uma conex\u00e3o segura e sem vazamentos, que atende aos requisitos operacionais do seu gasoduto.<\/span><\/p>\n<h2><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-14555 size-full\" src=\"https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/Lap-Joint-Flange-Size-of-A-Comprehensive-Guide.png\" alt=\"Lap Joint Flange Size of A Comprehensive Guide\" width=\"640\" height=\"472\" srcset=\"https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/Lap-Joint-Flange-Size-of-A-Comprehensive-Guide.png 640w, https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/Lap-Joint-Flange-Size-of-A-Comprehensive-Guide-300x221.png 300w, https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/Lap-Joint-Flange-Size-of-A-Comprehensive-Guide-600x443.png 600w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/h2>\n<h2><b>Tabelas de dimens\u00f5es padr\u00e3o de flanges<\/b><\/h2>\n<h3><b>Dimens\u00f5es nominais do tubo e dimens\u00f5es do flange de junta sobreposta<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">A seguir, uma tabela de exemplo que resume os tamanhos comuns de NPS, di\u00e2metros externos de flanges, c\u00edrculos de parafusos e n\u00famero de parafusos para os padr\u00f5es ANSI\/ASME:<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">NPS (polegadas)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Di\u00e2metro externo do tubo (mm)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Di\u00e2metro externo do flange (mm)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00edrculo dos parafusos (mm)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">N\u00famero de parafusos<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Tamanho do parafuso (polegadas)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1\/2<\/span><\/td>\n<td><span style=\"font-weight: 400;\">21.3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">95<\/span><\/td>\n<td><span style=\"font-weight: 400;\">70<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1\/2<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">3\/4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">26,7<\/span><\/td>\n<td><span style=\"font-weight: 400;\">110<\/span><\/td>\n<td><span style=\"font-weight: 400;\">85<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1\/2<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">33,4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">120<\/span><\/td>\n<td><span style=\"font-weight: 400;\">95<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1\/2<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1 1\/2<\/span><\/td>\n<td><span style=\"font-weight: 400;\">48,3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">165<\/span><\/td>\n<td><span style=\"font-weight: 400;\">125<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">5\/8<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2<\/span><\/td>\n<td><span style=\"font-weight: 400;\">60,3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">180<\/span><\/td>\n<td><span style=\"font-weight: 400;\">150<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">5\/8<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">88,9<\/span><\/td>\n<td><span style=\"font-weight: 400;\">235<\/span><\/td>\n<td><span style=\"font-weight: 400;\">190<\/span><\/td>\n<td><span style=\"font-weight: 400;\">6<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3\/4<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">114,3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">290<\/span><\/td>\n<td><span style=\"font-weight: 400;\">250<\/span><\/td>\n<td><span style=\"font-weight: 400;\">8<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3\/4<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">6<\/span><\/td>\n<td><span style=\"font-weight: 400;\">168,3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">355<\/span><\/td>\n<td><span style=\"font-weight: 400;\">310<\/span><\/td>\n<td><span style=\"font-weight: 400;\">8<\/span><\/td>\n<td><span style=\"font-weight: 400;\">7\/8<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">8<\/span><\/td>\n<td><span style=\"font-weight: 400;\">219,1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">405<\/span><\/td>\n<td><span style=\"font-weight: 400;\">370<\/span><\/td>\n<td><span style=\"font-weight: 400;\">8<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">10<\/span><\/td>\n<td><span style=\"font-weight: 400;\">273<\/span><\/td>\n<td><span style=\"font-weight: 400;\">480<\/span><\/td>\n<td><span style=\"font-weight: 400;\">440<\/span><\/td>\n<td><span style=\"font-weight: 400;\">12<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">12<\/span><\/td>\n<td><span style=\"font-weight: 400;\">323,9<\/span><\/td>\n<td><span style=\"font-weight: 400;\">525<\/span><\/td>\n<td><span style=\"font-weight: 400;\">495<\/span><\/td>\n<td><span style=\"font-weight: 400;\">12<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1 1\/8<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Nota: As dimens\u00f5es variam dependendo da classe de press\u00e3o (150, 300, 600, etc.) e das normas internacionais (ANSI\/ASME B16.5 ou ISO 7005).<\/span><\/p>\n<h3><b>Convers\u00e3o de Unidades Internacionais<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Ao trabalhar com pipelines de m\u00e9tricas, as seguintes convers\u00f5es aproximadas s\u00e3o comumente utilizadas:<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Polegadas NPS<\/span><\/td>\n<td><span style=\"font-weight: 400;\">M\u00e9trica DN<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Di\u00e2metro externo do tubo (mm)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Di\u00e2metro externo do flange (mm)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1\/2<\/span><\/td>\n<td><span style=\"font-weight: 400;\">15<\/span><\/td>\n<td><span style=\"font-weight: 400;\">21.3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">95<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">25<\/span><\/td>\n<td><span style=\"font-weight: 400;\">33,4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">120<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2<\/span><\/td>\n<td><span style=\"font-weight: 400;\">50<\/span><\/td>\n<td><span style=\"font-weight: 400;\">60,3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">180<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">80<\/span><\/td>\n<td><span style=\"font-weight: 400;\">88,9<\/span><\/td>\n<td><span style=\"font-weight: 400;\">235<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">100<\/span><\/td>\n<td><span style=\"font-weight: 400;\">114,3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">290<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">6<\/span><\/td>\n<td><span style=\"font-weight: 400;\">150<\/span><\/td>\n<td><span style=\"font-weight: 400;\">168,3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">355<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">8<\/span><\/td>\n<td><span style=\"font-weight: 400;\">200<\/span><\/td>\n<td><span style=\"font-weight: 400;\">219,1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">405<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">10<\/span><\/td>\n<td><span style=\"font-weight: 400;\">250<\/span><\/td>\n<td><span style=\"font-weight: 400;\">273<\/span><\/td>\n<td><span style=\"font-weight: 400;\">480<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">12<\/span><\/td>\n<td><span style=\"font-weight: 400;\">300<\/span><\/td>\n<td><span style=\"font-weight: 400;\">323,9<\/span><\/td>\n<td><span style=\"font-weight: 400;\">525<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">A norma m\u00e9trica DN (Di\u00e2metro Nominal) simplifica a especifica\u00e7\u00e3o de componentes de dutos em projetos internacionais. Sempre verifique a norma relevante para o seu pa\u00eds ou projeto para evitar desalinhamentos.<\/span><\/p>\n<h2><img decoding=\"async\" class=\"wp-image-14561 size-full aligncenter\" src=\"https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/lap-joint-Flanges-Sizes.jpg\" alt=\"lap joint Flanges Sizes\" width=\"600\" height=\"450\" srcset=\"https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/lap-joint-Flanges-Sizes.jpg 600w, https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/lap-joint-Flanges-Sizes-300x225.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/h2>\n<h2><b>Selecionando o tamanho dos flanges com base na classe de press\u00e3o.<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">As flanges de junta sobreposta est\u00e3o dispon\u00edveis em diversas classes de press\u00e3o padr\u00e3o.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Classe 150 (baixa press\u00e3o)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Classe 300 (press\u00e3o m\u00e9dia)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Classe 600 (alta press\u00e3o)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Classe 900-2500 (press\u00e3o muito alta, geralmente com veda\u00e7\u00e3o RTJ)<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Influ\u00eancias da classe de press\u00e3o:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Espessura do flange<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Tamanho e n\u00famero do parafuso<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Grau do material<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Por exemplo, um flange de junta sobreposta NPS de 4 polegadas na Classe 150 pode exigir 8 parafusos de 3\/4 de polegada, enquanto o mesmo tamanho na Classe 600 pode exigir parafusos maiores e um flange mais espesso para suportar uma press\u00e3o maior.<\/span><\/p>\n<h2><b>Considera\u00e7\u00f5es sobre o material do tubo e a extremidade do tubo<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">O material do tubo influencia o dimensionamento do flange. Materiais comuns para tubos incluem:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A\u00e7o carbono: Requer terminais resistentes \u00e0 corros\u00e3o se o fluido for agressivo.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A\u00e7o inoxid\u00e1vel: Ideal para aplica\u00e7\u00f5es sanit\u00e1rias; permite flanges menores devido \u00e0 sua maior resist\u00eancia.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A\u00e7o liga: Adequado para tubula\u00e7\u00f5es de alta press\u00e3o ou alta temperatura.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Para selecionar o flange de junta sobreposta adequado, verifique se:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">O material do flange \u00e9 compat\u00edvel com as condi\u00e7\u00f5es operacionais.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A extremidade do tubo se encaixa no di\u00e2metro externo do tubo para uma soldagem segura.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A classifica\u00e7\u00e3o de press\u00e3o correta \u00e9 selecionada para garantir a conformidade com as normas de seguran\u00e7a.<\/span><\/li>\n<\/ul>\n<h2><b>Tamanhos de flanges personalizados<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Flanges de junta sobreposta padr\u00e3o s\u00e3o adequadas para a maioria das tubula\u00e7\u00f5es; no entanto, flanges personalizadas s\u00e3o necess\u00e1rias quando:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">S\u00e3o utilizados di\u00e2metros de tubula\u00e7\u00e3o n\u00e3o padronizados.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Aplicam-se classifica\u00e7\u00f5es de press\u00e3o ou condi\u00e7\u00f5es de temperatura especiais.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Os requisitos de projetos internacionais diferem das normas ANSI\/ASME ou ISO.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Os fabricantes podem fornecer di\u00e2metro externo, padr\u00f5es de fura\u00e7\u00e3o e espessura personalizados com base nas especifica\u00e7\u00f5es do cliente. Consulte sempre o fornecedor para obter a personaliza\u00e7\u00e3o adequada.<\/span><\/p>\n<h2><b>Dicas para escolher o tamanho certo do flange de junta sobreposta<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Verifique o di\u00e2metro externo do tubo: Certifique-se de que o flange se encaixa na extremidade do tubo.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Determine o di\u00e2metro nominal da tubula\u00e7\u00e3o (NPS): Utilize as normas ANSI\/ISO como refer\u00eancia.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Considere a classe de press\u00e3o: press\u00f5es mais altas exigem flanges mais espessas e parafusos maiores.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Verificar padr\u00e3o de fura\u00e7\u00e3o e di\u00e2metro dos parafusos: Manter o alinhamento correto com os flanges adjacentes.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Requisitos de Material: Escolha terminais resistentes \u00e0 corros\u00e3o quando necess\u00e1rio.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Consulte as normas internacionais: Garanta a compatibilidade entre os sistemas m\u00e9trico e imperial em projetos transfronteiri\u00e7os.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Utilize as fichas t\u00e9cnicas do fabricante: verifique as dimens\u00f5es, toler\u00e2ncias e classifica\u00e7\u00f5es de press\u00e3o.<\/span><\/li>\n<\/ul>\n<h2><b>Exemplo de tabela de flanges de junta sobreposta para diferentes classes de press\u00e3o.<\/b><\/h2>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">NPS (polegadas)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Classe 150 OD (mm)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Classe 300 OD (mm)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Classe 600 OD (mm)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Furos para parafusos (classe 150\/300\/600)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2<\/span><\/td>\n<td><span style=\"font-weight: 400;\">180<\/span><\/td>\n<td><span style=\"font-weight: 400;\">190<\/span><\/td>\n<td><span style=\"font-weight: 400;\">210<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4 \/ 4 \/ 4<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">235<\/span><\/td>\n<td><span style=\"font-weight: 400;\">245<\/span><\/td>\n<td><span style=\"font-weight: 400;\">270<\/span><\/td>\n<td><span style=\"font-weight: 400;\">6 \/ 6 \/ 6<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">290<\/span><\/td>\n<td><span style=\"font-weight: 400;\">300<\/span><\/td>\n<td><span style=\"font-weight: 400;\">330<\/span><\/td>\n<td><span style=\"font-weight: 400;\">8 \/ 8 \/ 8<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">6<\/span><\/td>\n<td><span style=\"font-weight: 400;\">355<\/span><\/td>\n<td><span style=\"font-weight: 400;\">370<\/span><\/td>\n<td><span style=\"font-weight: 400;\">400<\/span><\/td>\n<td><span style=\"font-weight: 400;\">8\/8\/12<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">8<\/span><\/td>\n<td><span style=\"font-weight: 400;\">405<\/span><\/td>\n<td><span style=\"font-weight: 400;\">420<\/span><\/td>\n<td><span style=\"font-weight: 400;\">460<\/span><\/td>\n<td><span style=\"font-weight: 400;\">8\/8\/12<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">10<\/span><\/td>\n<td><span style=\"font-weight: 400;\">480<\/span><\/td>\n<td><span style=\"font-weight: 400;\">500<\/span><\/td>\n<td><span style=\"font-weight: 400;\">540<\/span><\/td>\n<td><span style=\"font-weight: 400;\">12\/12\/16<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">12<\/span><\/td>\n<td><span style=\"font-weight: 400;\">525<\/span><\/td>\n<td><span style=\"font-weight: 400;\">545<\/span><\/td>\n<td><span style=\"font-weight: 400;\">585<\/span><\/td>\n<td><span style=\"font-weight: 400;\">12\/12\/16<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Esta tabela fornece uma refer\u00eancia pr\u00e1tica para engenheiros que trabalham em dutos que requerem flanges de junta sobreposta em diversas classes de press\u00e3o.<\/span><\/p>\n<h2><b>Refer\u00eancias Normativas Internacionais<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Na sele\u00e7\u00e3o das dimens\u00f5es dos flanges, as normas de refer\u00eancia s\u00e3o cruciais:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">ANSI\/ASME B16.5: Abrange flanges de tubula\u00e7\u00e3o e conex\u00f5es flangeadas de 1\/2&#8243; a 24&#8243; NPS.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">ISO 7005-1: Norma m\u00e9trica europeia para flanges de a\u00e7o (DN 15-DN 2000).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">EN 1092-1: Flanges de a\u00e7o para classes de press\u00e3o PN.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">BS 4504: Flanges padr\u00e3o brit\u00e2nicas, geralmente em unidades m\u00e9tricas.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">A utiliza\u00e7\u00e3o dessas normas garante a compatibilidade e a seguran\u00e7a em oleodutos e gasodutos globais.<\/span><\/p>\n<h2><b>Erros comuns a evitar<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Sele\u00e7\u00e3o incorreta do di\u00e2metro externo: Leva a um encaixe inadequado ou vazamentos.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ignorar a classe de press\u00e3o: pode causar falha no flange.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Misturar unidades m\u00e9tricas e imperiais: causa desalinhamento em projetos internacionais.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">N\u00e3o verificar o padr\u00e3o de fura\u00e7\u00e3o: os furos dos parafusos devem coincidir exatamente com os flanges correspondentes.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Compatibilidade do material do tubo: A extremidade do tubo deve resistir \u00e0 corros\u00e3o e \u00e0 press\u00e3o.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">A escolha do tamanho correto do flange de junta sobreposta exige uma an\u00e1lise cuidadosa do di\u00e2metro externo do tubo, do tamanho nominal, do padr\u00e3o de fura\u00e7\u00e3o, da classe de press\u00e3o, do material e das normas internacionais. O uso de tabelas e normas garante uma sele\u00e7\u00e3o precisa, prevenindo vazamentos, reduzindo a necessidade de manuten\u00e7\u00e3o e aumentando a seguran\u00e7a da tubula\u00e7\u00e3o.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A escolha do tamanho correto do flange de junta sobreposta garante a opera\u00e7\u00e3o segura e eficiente da tubula\u00e7\u00e3o. Amplamente utilizados nas ind\u00fastrias de petr\u00f3leo, g\u00e1s, qu\u00edmica, \u00e1gua e alimentos, eles oferecem flexibilidade de alinhamento e s\u00e3o compat\u00edveis com terminais de deriva\u00e7\u00e3o. A escolha do tamanho correto garante o alinhamento adequado, conex\u00f5es \u00e0 prova de vazamentos e conformidade com as normas internacionais.<\/p>\n","protected":false},"author":1,"featured_media":18475,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[88],"tags":[],"class_list":["post-18474","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/posts\/18474","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/comments?post=18474"}],"version-history":[{"count":2,"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/posts\/18474\/revisions"}],"predecessor-version":[{"id":18479,"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/posts\/18474\/revisions\/18479"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/media\/18475"}],"wp:attachment":[{"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/media?parent=18474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/categories?post=18474"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.boberry-mach.com\/pt-br\/wp-json\/wp\/v2\/tags?post=18474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}