{"id":18436,"date":"2026-03-09T16:48:40","date_gmt":"2026-03-09T08:48:40","guid":{"rendered":"https:\/\/www.boberry-mach.com\/dimensoes-e-normas-de-flanges-para-solda-de-encaixe-guia-asme-b16-5\/"},"modified":"2026-03-26T09:25:10","modified_gmt":"2026-03-26T01:25:10","slug":"dimensoes-e-normas-de-flanges-para-solda-de-encaixe-guia-asme-b16-5","status":"publish","type":"post","link":"https:\/\/www.boberry-mach.com\/pt-br\/dimensoes-e-normas-de-flanges-para-solda-de-encaixe-guia-asme-b16-5\/","title":{"rendered":"Dimens\u00f5es e normas de flanges para solda de encaixe (Guia ASME B16.5)"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Flanges de encaixe para solda s\u00e3o amplamente utilizadas em sistemas de tubula\u00e7\u00e3o de alta press\u00e3o com di\u00e2metros de tubos pequenos, proporcionando conex\u00f5es de veda\u00e7\u00e3o fortes e confi\u00e1veis.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Entre as normas globais para flanges, a ASME B16.5 \u00e9 a especifica\u00e7\u00e3o mais utilizada para flanges de encaixe para solda, definindo dimens\u00f5es, classes de press\u00e3o, toler\u00e2ncias, materiais e requisitos de marca\u00e7\u00e3o para flanges de tubula\u00e7\u00f5es industriais.<\/span><\/p>\n<h2><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-14412 size-full\" src=\"https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/Nickel-Alloys-Socket-Weld-Flange.webp\" alt=\"Flange para soldagem por encaixe em ligas de n\u00edquel\" width=\"800\" height=\"500\" srcset=\"https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/Nickel-Alloys-Socket-Weld-Flange.webp 800w, https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/Nickel-Alloys-Socket-Weld-Flange-300x188.webp 300w, https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/Nickel-Alloys-Socket-Weld-Flange-768x480.webp 768w, https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/Nickel-Alloys-Socket-Weld-Flange-600x375.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/h2>\n<h2><b>Sinopse de flanges para soldagem de encaixe<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">O rebaixo<\/span><a href=\"https:\/\/www.boberry-mach.com\/pt-br\/flange-encaixe-para-solda\/\"> <span style=\"font-weight: 400;\">encaixe em flange de solda <\/span><\/a><span style=\"font-weight: 400;\">Permite que o tubo seja colocado no flange antes da soldagem. O tubo \u00e9 ent\u00e3o soldado ao redor da \u00e1rea do cubo, formando uma conex\u00e3o segura.<\/span><\/p>\n<h3><b>Elementos cruciais<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Um encaixe rebaixado \u00e9 preenchido com um cano.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ideal para tubula\u00e7\u00f5es de alta press\u00e3o de pequeno di\u00e2metro.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ideal para tubula\u00e7\u00f5es de alta press\u00e3o de pequeno di\u00e2metro.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Garante um furo liso no interior.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Reduz a turbul\u00eancia e a eros\u00e3o.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Flanges de solda de encaixe s\u00e3o particularmente comuns em:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">f\u00e1bricas de processamento qu\u00edmico<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Oleodutos e gasodutos para transporte de petr\u00f3leo e g\u00e1s<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Sistemas movidos a vapor<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Servi\u00e7os hidr\u00e1ulicos e de alta press\u00e3o<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Em compara\u00e7\u00e3o com flanges de encaixe, as flanges de solda de encaixe proporcionam conex\u00f5es mais robustas para tubos de menor di\u00e2metro e ajudam a manter a integridade do fluxo interno.<\/span><\/p>\n<h2><b>Requisitos para flanges de solda de encaixe, conforme estabelecido na norma ASME B16.5.<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">A norma ASME B16.5 define as dimens\u00f5es e toler\u00e2ncias para flanges de tubula\u00e7\u00e3o com di\u00e2metros de \u00bd polegada a 24 polegadas (NPS). Entre os diversos tipos de flanges inclu\u00eddos est\u00e3o os de pesco\u00e7o para solda, de encaixe, roscados, cegos, de junta sobreposta e de solda de encaixe.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Em particular, a norma oferece o seguinte para flanges de solda de encaixe:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Requisitos dimensionais<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Classifica\u00e7\u00f5es de press\u00e3o e temperatura<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Dimens\u00f5es do c\u00edrculo dos parafusos e dos furos para parafusos<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Padr\u00f5es de materiais e marca\u00e7\u00e3o<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Toler\u00e2ncias e regras de inspe\u00e7\u00e3o<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">De acordo com a norma ASME B16.5:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">As flanges de encaixe para solda normalmente abrangem tamanhos de NPS \u00bd\u2033 a NPS 3\u2033.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">As classes de press\u00e3o s\u00e3o 150, 300, 400, 600, 900, 1500 e 2500.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">As dimens\u00f5es s\u00e3o especificadas tanto em polegadas quanto em unidades m\u00e9tricas.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Para flanges maiores (acima de 24 polegadas), utiliza-se a norma ASME B16.47.<\/span><\/p>\n<h2><b>Classes de press\u00e3o na norma ASME B16.5<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">As flanges de encaixe para solda s\u00e3o classificadas por classes de press\u00e3o, que determinam seus limites de press\u00e3o e temperatura permitidos.<\/span><\/p>\n<h3><b>Classes de press\u00e3o comuns<\/b><\/h3>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Classe de press\u00e3o<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Aplica\u00e7\u00e3o t\u00edpica<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Capacidade de press\u00e3o<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Classe 150<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Sistemas de baixa press\u00e3o<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Tubula\u00e7\u00f5es de \u00e1gua, HVAC<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Classe 300<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Press\u00e3o m\u00e9dia<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Oleodutos qu\u00edmicos<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Classe 600<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Sistemas de alta press\u00e3o<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Processamento de petr\u00f3leo e g\u00e1s<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Classe 900<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Condi\u00e7\u00f5es de press\u00e3o severas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Refinarias<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Classe 1500<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Press\u00e3o muito alta<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Sistemas de vapor e de alta temperatura<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Classe 2500<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Press\u00e3o extrema<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Usinas de energia<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Classes de press\u00e3o mais elevadas geralmente exigem:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Corpos de flange mais espessos<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Di\u00e2metros de parafuso maiores<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Materiais mais resistentes<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Essas classes garantem a compatibilidade com diferentes press\u00f5es e temperaturas do sistema de tubula\u00e7\u00e3o.<\/span><\/p>\n<h2><img decoding=\"async\" class=\"aligncenter wp-image-14989 size-full\" src=\"https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/Socket-Weld-Flange-Dimensions-and-Standard.jpg\" alt=\"Socket Weld Flange Dimensions and Standard\" width=\"800\" height=\"600\" srcset=\"https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/Socket-Weld-Flange-Dimensions-and-Standard.jpg 800w, https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/Socket-Weld-Flange-Dimensions-and-Standard-300x225.jpg 300w, https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/Socket-Weld-Flange-Dimensions-and-Standard-768x576.jpg 768w, https:\/\/www.boberry-mach.com\/wp-content\/uploads\/2026\/03\/Socket-Weld-Flange-Dimensions-and-Standard-600x450.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/h2>\n<h2><b>Dimens\u00f5es principais de flanges de solda de encaixe<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">A norma ASME B16.5 define diversas dimens\u00f5es cr\u00edticas que os engenheiros devem considerar ao especificar flanges de solda de encaixe.<\/span><\/p>\n<h3><b>Principais par\u00e2metros dimensionais<\/b><\/h3>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">S\u00edmbolo de dimens\u00e3o<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Descri\u00e7\u00e3o<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">O<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Di\u00e2metro externo do flange<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">T<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Espessura do flange<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">R<\/span><\/td>\n<td><span style=\"font-weight: 400;\">di\u00e2metro da face elevada<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">E<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Comprimento atrav\u00e9s do cubo<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">X<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Di\u00e2metro do cubo<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">B1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">di\u00e2metro do furo do tubo<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">B2<\/span><\/td>\n<td><span style=\"font-weight: 400;\">di\u00e2metro do furo do soquete<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">D<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Profundidade do soquete<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">C<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Qual o tamanho do c\u00edrculo dos parafusos?<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">N<\/span><\/td>\n<td><span style=\"font-weight: 400;\">O n\u00famero de furos para parafusos<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Esses par\u00e2metros determinam como o flange se encaixa no tubo, na junta e nos parafusos.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Por exemplo:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A profundidade do encaixe (D) garante a inser\u00e7\u00e3o correta do tubo antes da soldagem.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">O c\u00edrculo de parafusos (C) garante o alinhamento dos parafusos com o flange de acoplamento.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">O di\u00e2metro elevado da face (R) favorece o desempenho da veda\u00e7\u00e3o da junta.<\/span><\/li>\n<\/ul>\n<h2><b>Dimens\u00f5es padr\u00e3o para flanges de solda de encaixe classe 150<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Abaixo, segue um exemplo das dimens\u00f5es de um flange de solda de encaixe Classe 150 para tubos de pequeno di\u00e2metro.<\/span><\/p>\n<h3><b>Dimens\u00f5es da flange de solda de encaixe Classe 150<\/b><\/h3>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">NPS<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Di\u00e2metro externo (pol.)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Espessura (em)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Di\u00e2metro da face elevada (pol.)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00edrculo de parafusos (em)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Furos para parafusos<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1\/2<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3,50<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0,44<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1,38<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2,38<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">3\/4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3,88<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0,50<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1,69<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2,75<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4,25<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0,56<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2,00<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3.13<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1 1\/4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4,63<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0,63<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2,50<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3,50<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4<\/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;\">5,00<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0,69<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2,88<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3,88<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Essas dimens\u00f5es ilustram como o tamanho do flange aumenta com o di\u00e2metro do tubo.<\/span><\/p>\n<h2><b>Dimens\u00f5es de exemplo para flanges de solda de encaixe classe 300<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">As flanges da classe 300 s\u00e3o mais espessas e resistentes do que as da classe 150.<\/span><\/p>\n<h3><b>Dimens\u00f5es da flange de solda de encaixe Classe 300<\/b><\/h3>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">NPS<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Di\u00e2metro externo<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Grossura<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Rosto levantado<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00edrculo de Parafusos<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Furos para parafusos<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">3\/4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4,63 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0,63 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1,69 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3,25 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4,88 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0,69 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2,00 em<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3,50 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1 1\/4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">5,25 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0,75 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2,50 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3,88 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4<\/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;\">6,13 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0,81 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2,88 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4,50 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2<\/span><\/td>\n<td><span style=\"font-weight: 400;\">6,50 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0,88 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3,63 polegadas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">5,00 em<\/span><\/td>\n<td><span style=\"font-weight: 400;\">8<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Essas dimens\u00f5es demonstram o aumento da espessura e do di\u00e2metro do c\u00edrculo dos parafusos necess\u00e1rios para classifica\u00e7\u00f5es de press\u00e3o mais elevadas.<\/span><\/p>\n<h2><b>Dimens\u00f5es do encaixe de flange para solda de encaixe<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">A c\u00e2mara de encaixe, onde o tubo \u00e9 colocado antes da soldagem, \u00e9 uma das caracter\u00edsticas mais not\u00e1veis \u200b\u200bdos flanges de solda de encaixe.<\/span><\/p>\n<h3><b>Dimens\u00f5es importantes da tomada<\/b><\/h3>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Dimens\u00e3o<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Descri\u00e7\u00e3o<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Furo de encaixe<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Di\u00e2metro correspondente ao di\u00e2metro externo do tubo<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Profundidade do soquete<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Profundidade de inser\u00e7\u00e3o do tubo<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Folga de folga<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Pequena folga para expans\u00e3o t\u00e9rmica<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Di\u00e2metro do furo<\/span><\/td>\n<td><span style=\"font-weight: 400;\">alinhamento do furo interno do tubo<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Para evitar o estresse t\u00e9rmico durante a opera\u00e7\u00e3o, geralmente \u00e9 deixado um pequeno espa\u00e7o de expans\u00e3o entre a extremidade do tubo e o fundo do soquete.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Em muitas especifica\u00e7\u00f5es, a profundidade do encaixe \u00e9 definida apenas para tubos com di\u00e2metro de at\u00e9 3 polegadas, enquanto que para di\u00e2metros maiores, essa especifica\u00e7\u00e3o pode ser determinada pelo fabricante.<\/span><\/p>\n<h2><b>Materiais utilizados para flanges de solda de encaixe<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">A norma ASME B16.5 especifica padr\u00f5es dimensionais, mas permite uma variedade de materiais, dependendo dos requisitos da aplica\u00e7\u00e3o.<\/span><\/p>\n<h3><b>Materiais comuns<\/b><\/h3>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Material<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Padr\u00e3o t\u00edpico<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Aplicativo<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">A\u00e7o carbono<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASTM A105<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Tubula\u00e7\u00e3o industrial geral<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">A\u00e7o inoxid\u00e1vel<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASTM A182 F304 \/ F316<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ambientes corrosivos<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Liga de a\u00e7o<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASTM A182 F11 \/ F22<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Alta temperatura<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">A\u00e7o duplex<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASTM A182 F51<\/span><\/td>\n<td><span style=\"font-weight: 400;\">gasodutos submarinos<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Ligas de n\u00edquel<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Inconel \/ Monel<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Processamento qu\u00edmico<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">A sele\u00e7\u00e3o de materiais depende de:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Press\u00e3o e temperatura<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Resist\u00eancia \u00e0 corros\u00e3o<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">resist\u00eancia mec\u00e2nica<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Regulamentos do setor<\/span><\/li>\n<\/ul>\n<h2><b>Classifica\u00e7\u00f5es de press\u00e3o e temperatura<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">A norma ASME B16.5 tamb\u00e9m inclui classifica\u00e7\u00f5es de press\u00e3o-temperatura, que definem a press\u00e3o admiss\u00edvel para um determinado material e temperatura.<\/span><\/p>\n<h3><b>Exemplos de classifica\u00e7\u00f5es de press\u00e3o (a\u00e7o carbono)<\/b><\/h3>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Temperatura<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Classe 150<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Classe 300<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">100\u00b0F<\/span><\/td>\n<td><span style=\"font-weight: 400;\">285 psi<\/span><\/td>\n<td><span style=\"font-weight: 400;\">740 psi<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">400\u00b0F<\/span><\/td>\n<td><span style=\"font-weight: 400;\">200 psi<\/span><\/td>\n<td><span style=\"font-weight: 400;\">515 psi<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">800\u00b0F<\/span><\/td>\n<td><span style=\"font-weight: 400;\">95 psi<\/span><\/td>\n<td><span style=\"font-weight: 400;\">245 psi<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Temperaturas mais elevadas reduzem a press\u00e3o admiss\u00edvel devido \u00e0s limita\u00e7\u00f5es de resist\u00eancia do material.<\/span><\/p>\n<h2><b>Tipos de faceamento de flanges de solda de encaixe<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Diferentes tipos de faces de veda\u00e7\u00e3o podem ser usados \u200b\u200bna produ\u00e7\u00e3o de flanges de solda de encaixe.<\/span><\/p>\n<h3><b>Tipos de rosto comuns<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Rosto Elevado (RF)<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">A superf\u00edcie de veda\u00e7\u00e3o mais comum usada em tubula\u00e7\u00f5es industriais.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Rosto plano (FF)<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Utilizado em sistemas de baixa press\u00e3o ou com flanges de ferro fundido.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Junta tipo anel (RTJ)<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Utilizado em tubula\u00e7\u00f5es de alta press\u00e3o que necessitam de veda\u00e7\u00e3o metal-metal.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">O design com face elevada \u00e9 amplamente utilizado porque melhora a compress\u00e3o da junta e o desempenho da veda\u00e7\u00e3o.<\/span><\/p>\n<h2><b>Considera\u00e7\u00f5es sobre a instala\u00e7\u00e3o<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">A instala\u00e7\u00e3o correta de flanges de solda de encaixe \u00e9 essencial para uma opera\u00e7\u00e3o segura.<\/span><\/p>\n<h3><b>Etapas de instala\u00e7\u00e3o<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Insira o tubo no encaixe do flange.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Deixe um espa\u00e7o de dilata\u00e7\u00e3o (aproximadamente 1,5 mm).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Realizar soldagem de filete ao redor do cubo<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Inspecionar a integridade da solda<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Instale os parafusos e a junta.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Aperte os parafusos utilizando a sequ\u00eancia de torque adequada.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">As vantagens da instala\u00e7\u00e3o por solda de encaixe incluem:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Forte conex\u00e3o estrutural<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Risco de vazamento reduzido<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Boa resist\u00eancia \u00e0 fadiga<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">No entanto, esses flanges geralmente n\u00e3o s\u00e3o recomendados para ambientes corrosivos onde pode ocorrer corros\u00e3o por frestas dentro do encaixe.<\/span><\/p>\n<h2><b>Inspe\u00e7\u00e3o e Controle de Qualidade<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Para garantir a conformidade com a norma ASME B16.5, os fabricantes devem realizar diversas verifica\u00e7\u00f5es de qualidade.<\/span><\/p>\n<h3><b>M\u00e9todos t\u00edpicos de inspe\u00e7\u00e3o<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Inspe\u00e7\u00e3o dimensional<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Certifica\u00e7\u00e3o de materiais<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Teste ultrass\u00f4nico<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Inspe\u00e7\u00e3o visual de solda<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Teste de press\u00e3o<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">A inspe\u00e7\u00e3o verifica se as dimens\u00f5es do flange correspondem ao padr\u00e3o e garante a opera\u00e7\u00e3o segura do oleoduto.<\/span><\/p>\n<h2><b>Benef\u00edcios dos flanges de solda de encaixe<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Para sistemas de tubula\u00e7\u00e3o de pequeno porte, os flanges de encaixe para solda apresentam diversas vantagens.<\/span><\/p>\n<h2><b>Principais vantagens<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Alta resist\u00eancia estrutural<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Bom desempenho de veda\u00e7\u00e3o<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">furo interno liso<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Turbul\u00eancia reduzida<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Adequado para tubula\u00e7\u00f5es de alta press\u00e3o.<\/span><\/li>\n<\/ul>\n<h2><b>Limita\u00e7\u00f5es das flanges de solda de encaixe<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Apesar de suas vantagens, os flanges de solda de encaixe tamb\u00e9m apresentam algumas limita\u00e7\u00f5es.<\/span><\/p>\n<h3><b>Desvantagens comuns<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Limitado a tubos de pequeno di\u00e2metro<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">risco de corros\u00e3o em frestas<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Soldagem necess\u00e1ria<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">N\u00e3o \u00e9 adequado para desmontagem frequente.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Para tubula\u00e7\u00f5es de maior di\u00e2metro ou ambientes corrosivos, os engenheiros podem preferir flanges de pesco\u00e7o para solda.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Em sistemas de tubula\u00e7\u00e3o industrial que necessitam de alta press\u00e3o e di\u00e2metros de tubo pequenos, flanges de solda de encaixe s\u00e3o frequentemente utilizadas. A norma ASME B16.5 define suas dimens\u00f5es, classifica\u00e7\u00f5es de press\u00e3o e requisitos de projeto para garantir seguran\u00e7a e compatibilidade.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Dimens\u00f5es-chave \u2014 como di\u00e2metro externo, espessura do flange, profundidade do encaixe, c\u00edrculo dos parafusos e classe de press\u00e3o \u2014 s\u00e3o essenciais para o projeto adequado do sistema. Seguir a norma ASME B16.5 ajuda os engenheiros a obter uma veda\u00e7\u00e3o confi\u00e1vel e uma longa vida \u00fatil.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">As flanges de encaixe para solda continuam sendo uma solu\u00e7\u00e3o confi\u00e1vel para conex\u00f5es compactas e de alta resist\u00eancia em ambientes industriais exigentes.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Este artigo apresenta as dimens\u00f5es, classifica\u00e7\u00f5es de press\u00e3o e sistemas de dimensionamento de flanges de solda de encaixe ASME B16.5, fornecendo tabelas pr\u00e1ticas e explica\u00e7\u00f5es para ajudar engenheiros e compradores a interpretar corretamente as especifica\u00e7\u00f5es de flanges.<\/p>\n","protected":false},"author":1,"featured_media":18437,"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 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