{"id":22842,"date":"2024-08-08T17:14:17","date_gmt":"2024-08-08T09:14:17","guid":{"rendered":"https:\/\/firstmold.com\/?p=22842"},"modified":"2025-07-15T13:32:44","modified_gmt":"2025-07-15T05:32:44","slug":"types-of-flanges","status":"publish","type":"post","link":"https:\/\/firstmold.com\/pt\/tips\/types-of-flanges\/","title":{"rendered":"Compreender os diferentes tipos de flanges e as suas aplica\u00e7\u00f5es"},"content":{"rendered":"<p>A classifica\u00e7\u00e3o dos v\u00e1rios tipos de flanges pode ser classificada de acordo com a sua aplica\u00e7\u00e3o e o material utilizado no fabrico das flanges. As flanges formam an\u00e9is forjados que est\u00e3o dispon\u00edveis em diferentes formas e tamanhos, componentes essenciais de muitas aplica\u00e7\u00f5es industriais. As flanges s\u00e3o frequentemente roscadas ou soldadas. A sua principal utiliza\u00e7\u00e3o consiste em ligar tubos, bombas, v\u00e1lvulas e outros equipamentos para fazer funcionar uma tubagem. <\/p>\n\n\n\n<p>Para unir as flanges, \u00e9 necess\u00e1rio aparafus\u00e1-las utilizando juntas para criar uma veda\u00e7\u00e3o que permita um acesso f\u00e1cil ao sistema de tubagem. Isto oferece uma intersec\u00e7\u00e3o fi\u00e1vel \u00e0 prova de fugas em aplica\u00e7\u00f5es em que os fluidos ou gases s\u00e3o transferidos a altas press\u00f5es ou temperaturas. Selecionar o ideal para si pode, \u00e0 partida, parecer complicado devido \u00e0 grande quantidade de op\u00e7\u00f5es e carater\u00edsticas. Por este motivo, este artigo ir\u00e1 debru\u00e7ar-se sobre as especificidades dos diferentes tipos de flanges para fornecer informa\u00e7\u00f5es vari\u00e1veis a qualquer pessoa envolvida em sistemas de tubagem e de manuseamento de fluidos. Iremos explorar os seus designs \u00fanicos, utiliza\u00e7\u00f5es, vantagens e factores a ter em conta ao escolher a flange certa para v\u00e1rias aplica\u00e7\u00f5es industriais.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"750\" height=\"409\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/What-does-a-flange-look-like.webp\" alt=\"Qual \u00e9 o aspeto de uma flange\" class=\"wp-image-22860\" style=\"width:600px\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/What-does-a-flange-look-like.webp 750w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/What-does-a-flange-look-like-300x164.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/What-does-a-flange-look-like-18x10.webp 18w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-key-components-of-flanges\">Componentes principais dos flanges<\/h2>\n\n\n\n<p>As flanges s\u00e3o fabricadas de acordo com <a href=\"https:\/\/www.astm.org\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>ASTM<\/strong><\/a> e <a href=\"https:\/\/www.asme.org\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>ASME<\/strong><\/a> Normas. S\u00e3o a segunda t\u00e9cnica de uni\u00e3o mais comum depois da soldadura. A instala\u00e7\u00e3o de flanges \u00e9 feita atrav\u00e9s de soldadura, aparafusamento ou lapida\u00e7\u00e3o.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-flange-face\">Face da flange<\/h3>\n\n\n\n<p>Refere-se \u00e0 \u00e1rea de contacto com a junta utilizada para a veda\u00e7\u00e3o. Normalmente, uma junta de veda\u00e7\u00e3o situa-se entre as duas faces opostas da flange. Exemplos de faces de flange s\u00e3o:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><em><strong>Face plana (FF)<\/strong>:<\/em> Toda a superf\u00edcie \u00e9 plana, semelhante a uma flange de face saliente (RF), mas sem a \u00e1rea saliente. Isto significa que toda a superf\u00edcie entra em contacto com a junta quando duas flanges encaixam.<\/li>\n\n\n\n<li><strong><em>Raised Face (RF):<\/em><\/strong> \u00c9 o tipo de face de flange mais utilizado. \u00c9 designada por \"Elevada\" porque a superf\u00edcie elevada desta flange est\u00e1 acima do c\u00edrculo de aparafusamento onde assenta a junta.<\/li>\n\n\n\n<li><strong><em>Junta de tipo anelar (RTJ):<\/em><\/strong> Este tipo tem um anel de metal com uma ranhura profunda cortada na sua superf\u00edcie. Durante o processo de aperto dos parafusos, o anel met\u00e1lico na ranhura comprime-se.<\/li>\n\n\n\n<li><strong><em>L\u00edngua e ranhura:<\/em><\/strong> A flange de lingueta tem um anel elevado, enquanto a flange de ranhura tem uma depress\u00e3o correspondente maquinada nas faces.<\/li>\n\n\n\n<li><strong><em>Juntas sobrepostas<\/em>:<\/strong> Este tipo s\u00e3o liga\u00e7\u00f5es de flange de tubo de duas pe\u00e7as que s\u00e3o f\u00e1ceis de montar e desmontar. As flanges de junta sobreposta s\u00e3o importantes, uma vez que podem permitir pequenos desalinhamentos.<\/li>\n\n\n\n<li><em><strong>Homem e mulher (M\/F):<\/strong><\/em> Neste tipo, a flange macho tem um anel elevado e a f\u00eamea tem uma depress\u00e3o correspondente.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-flange-surfaces\">Superf\u00edcies de flange<\/h3>\n\n\n\n<p>\u00c9 o estado da superf\u00edcie de veda\u00e7\u00e3o da face da flange. A superf\u00edcie \u00e9 serrilhada ou lisa.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-flange-hub\">Cubo de flange<\/h3>\n\n\n\n<p>O cubo da flange \u00e9 a sec\u00e7\u00e3o que acomoda o tubo que se liga \u00e0 flange.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-flange-blade\">L\u00e2mina de flange<\/h3>\n\n\n\n<p>Isto inclui a regi\u00e3o onde os parafusos atravessam tanto a flange como a sua face.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-bore\">Furo<\/h3>\n\n\n\n<p>Um furo \u00e9 o orif\u00edcio central na flange por onde passa o tubo.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-neck-for-weld-neck-flanges\">Pesco\u00e7o (para flanges de pesco\u00e7o de soldadura)<\/h3>\n\n\n\n<p>\u00c9 a extremidade que se liga, atrav\u00e9s do processo de soldadura, ao tubo ou acess\u00f3rio de liga\u00e7\u00e3o. Normalmente, \u00e9 c\u00f3nica para permitir a distribui\u00e7\u00e3o de tens\u00f5es e o refor\u00e7o.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-outer-diameter-od\">Di\u00e2metro exterior (DE)<\/h3>\n\n\n\n<p>O di\u00e2metro exterior \u00e9 a dist\u00e2ncia entre dois bordos opostos da face da flange.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"1000\" height=\"572\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Key-Components-of-Flanges.webp\" alt=\"Componentes principais dos flanges\" class=\"wp-image-22848\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Key-Components-of-Flanges.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Key-Components-of-Flanges-300x172.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Key-Components-of-Flanges-768x439.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Key-Components-of-Flanges-18x10.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-detailed-overview-of-various-types-of-flange\">Vis\u00e3o geral detalhada de v\u00e1rios tipos de flange<\/h2>\n\n\n\n<p>Alguns dos tipos de flanges mais comuns e populares s\u00e3o:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-1-blind-flange\">1. Flange cega<\/h3>\n\n\n\n<p>Uma flange cega \u00e9 uma placa plana sem furo que fecha a extremidade de sistemas de tubagem, v\u00e1lvulas e aberturas de recipientes sob press\u00e3o. S\u00e3o particularmente maiores, uma vez que est\u00e3o sujeitos a muita tens\u00e3o. As pessoas utilizam este tipo de flange para tapar tubos e v\u00e1lvulas que n\u00e3o est\u00e3o a ser utilizados. Tamb\u00e9m \u00e9 comummente utilizado quando \u00e9 necess\u00e1rio efetuar uma manuten\u00e7\u00e3o ou uma futura expans\u00e3o.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"800\" height=\"400\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/blind-flange.webp\" alt=\"flange cega\" class=\"wp-image-22846\" style=\"width:600px\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/blind-flange.webp 800w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/blind-flange-300x150.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/blind-flange-768x384.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/blind-flange-18x9.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-2-weld-neck-flange\">2. Flange de pesco\u00e7o de soldadura<\/h3>\n\n\n\n<p>Esta flange \u00e9 f\u00e1cil de reconhecer, uma vez que tem um cubo c\u00f3nico longo e um pesco\u00e7o que \u00e9 soldado ao tubo. A vantagem do pesco\u00e7o \u00e9 dar refor\u00e7os e permitir o alinhamento do tubo durante a instala\u00e7\u00e3o. As flanges correspondem ao di\u00e2metro interior do encaixe do tubo atrav\u00e9s de perfura\u00e7\u00e3o para facilitar o fluxo suave do produto. Compat\u00edvel em aplica\u00e7\u00f5es de alta press\u00e3o ou em tubagens que transportem fluidos corrosivos.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"400\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Weld-neck-Flange.webp\" alt=\"Flange com pesco\u00e7o de soldadura\" class=\"wp-image-22858\" style=\"width:600px\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Weld-neck-Flange.webp 800w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Weld-neck-Flange-300x150.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Weld-neck-Flange-768x384.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Weld-neck-Flange-18x9.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-slip-on-the-flange\">3. Colocar a flange<\/h3>\n\n\n\n<p>A flange de encaixe \u00e9 uma placa plana com um furo que desliza sobre a extremidade de um tubo. \u00c9 soldada por dentro e por fora para fixar a liga\u00e7\u00e3o. As flanges deslizantes s\u00e3o frequentemente utilizadas em tubagens que transportam fluidos n\u00e3o corrosivos ou em aplica\u00e7\u00f5es de baixa press\u00e3o.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"400\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Slip-On-the-flange.webp\" alt=\"Colocar a flange\" class=\"wp-image-22853\" style=\"width:600px\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Slip-On-the-flange.webp 800w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Slip-On-the-flange-300x150.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Slip-On-the-flange-768x384.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Slip-On-the-flange-18x9.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-4-socket-weld-flange\">4. Flange de soldadura de encaixe<\/h3>\n\n\n\n<p>Uma flange de soldadura de encaixe liga-se ao tubo com uma soldadura de encaixe. Esta liga\u00e7\u00e3o cria uma junta forte e facilita o alinhamento durante a instala\u00e7\u00e3o. No entanto, n\u00e3o s\u00e3o ideais para servi\u00e7os cr\u00edticos. S\u00e3o frequentemente utilizadas como alternativa \u00e0s flanges de pesco\u00e7o de soldadura quando o espa\u00e7o \u00e9 limitado. As flanges de soldadura de encaixe s\u00e3o \u00fateis em condutas que transportam fluidos corrosivos ou em aplica\u00e7\u00f5es de alta press\u00e3o, como tubos hidr\u00e1ulicos.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"400\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Socket-Weld-Flange.webp\" alt=\"Flange de soldadura de encaixe\" class=\"wp-image-22854\" style=\"width:600px\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Socket-Weld-Flange.webp 800w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Socket-Weld-Flange-300x150.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Socket-Weld-Flange-768x384.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Socket-Weld-Flange-18x9.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-5-threaded-flanges\">5. Flanges roscadas<\/h3>\n\n\n\n<p>As flanges roscadas s\u00e3o semelhantes em design \u00e0s flanges de encaixe, mas t\u00eam <a href=\"https:\/\/firstmold.com\/pt\/uncategorized\/types-of-threads\/\" target=\"_blank\" rel=\"noreferrer noopener\">roscas c\u00f3nicas<\/a>. As roscas encontram-se no interior do furo e no di\u00e2metro exterior, o que permite a sua liga\u00e7\u00e3o aos tubos sem soldadura. S\u00e3o ideais para aplica\u00e7\u00f5es de baixa press\u00e3o e baixa temperatura e s\u00e3o adequados para tubagens que transportam subst\u00e2ncias n\u00e3o corrosivas.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"400\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Threaded-Flanges.webp\" alt=\"Flanges roscadas\" class=\"wp-image-22856\" style=\"width:600px\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Threaded-Flanges.webp 800w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Threaded-Flanges-300x150.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Threaded-Flanges-768x384.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Threaded-Flanges-18x9.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-6-lap-joint-flange\">6. Flange de junta sobreposta<\/h3>\n\n\n\n<p>Esta flange liga-se a um tubo atrav\u00e9s de uma extremidade de encaixe. Tem dimens\u00f5es semelhantes \u00e0s de outras flanges, mas n\u00e3o tem uma face elevada. A extremidade do tubo \u00e9 primeiro soldada ao tubo e, em seguida, a flange de junta sobreposta \u00e9 aparafusada \u00e0 extremidade do tubo. As flanges de junta sobreposta s\u00e3o \u00fateis em situa\u00e7\u00f5es em que \u00e9 necess\u00e1ria uma desmontagem frequente. Oferecem algumas vantagens \u00fanicas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Uma vez que as flanges de a\u00e7o-carbono baratas n\u00e3o est\u00e3o em contacto com o fluido no interior do tubo, podem ligar-se a tubos de a\u00e7o inoxid\u00e1vel caros.<\/li>\n\n\n\n<li>A capacidade de rodar livremente \u00e0 volta do tubo facilita o alinhamento dos orif\u00edcios dos parafusos da flange.<\/li>\n\n\n\n<li>As flanges dos sistemas que se desgastam ou corroem rapidamente s\u00e3o recicladas novamente.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"400\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Lap-Joint-Flange.webp\" alt=\"Flange de junta sobreposta\" class=\"wp-image-22849\" style=\"width:600px\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Lap-Joint-Flange.webp 800w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Lap-Joint-Flange-300x150.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Lap-Joint-Flange-768x384.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Lap-Joint-Flange-18x9.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-7-orifice-flanges\">7. Flanges de orif\u00edcio<\/h3>\n\n\n\n<p>A flange de orif\u00edcio tem uma placa fina com o furo central que determina o caudal desejado. A limita\u00e7\u00e3o do caudal \u00e9 o resultado da placa de orif\u00edcio inserida. Esta cria uma press\u00e3o diferencial, que mede o caudal de l\u00edquidos, vapor ou gases.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"400\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Orifice-Flanges.webp\" alt=\"Flanges de orif\u00edcio\" class=\"wp-image-22851\" style=\"width:600px\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Orifice-Flanges.webp 800w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Orifice-Flanges-300x150.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Orifice-Flanges-768x384.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Orifice-Flanges-18x9.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-8-long-welding-neck-flange\">8. Flange de pesco\u00e7o longo para soldadura<\/h3>\n\n\n\n<p>Esta flange tem um pesco\u00e7o alargado que permite uma liga\u00e7\u00e3o de soldadura forte e segura ao sistema de tubagem. \u00c9 utilizada em v\u00e1rias aplica\u00e7\u00f5es industriais e de tubagem. As flanges de pesco\u00e7o de soldadura comprido encontram-se frequentemente nas ind\u00fastrias do g\u00e1s, petr\u00f3leo e petrol\u00edferas porque podem suportar press\u00f5es elevadas e ligar grandes redes de tubos.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"400\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Long-Welding-Neck-Flange.webp\" alt=\"Flange de pesco\u00e7o longo para soldadura\" class=\"wp-image-22850\" style=\"width:600px\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Long-Welding-Neck-Flange.webp 800w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Long-Welding-Neck-Flange-300x150.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Long-Welding-Neck-Flange-768x384.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Long-Welding-Neck-Flange-18x9.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-9-special-types-of-flanges\">9. Tipos especiais de flanges<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-nipoflange\">Nipoflange<\/h4>\n\n\n\n<p>O produto da combina\u00e7\u00e3o de uma flange de pesco\u00e7o de soldadura com um Nipolet forjado, utilizado para dividir tubagens a 90 graus.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-weldo-flange\">Flange de soldadura<\/h4>\n\n\n\n<p>Flange Weldo<\/p>\n\n\n\n<p>O \u00fanico objetivo de uma flange Weldo \u00e9 fornecer uma liga\u00e7\u00e3o de ramifica\u00e7\u00e3o a partir do tubo principal na ind\u00fastria de tubagens. Permite a soldadura direta no tubo principal, ao mesmo tempo que proporciona uma sa\u00edda para liga\u00e7\u00f5es de deriva\u00e7\u00e3o. Este tipo de flange \u00e9 aplic\u00e1vel em \u00e1reas onde a integridade e a fiabilidade s\u00e3o cruciais.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"400\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Weldoflange.webp\" alt=\"Weldoflange\" class=\"wp-image-22859\" style=\"width:600px\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Weldoflange.webp 800w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Weldoflange-300x150.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Weldoflange-768x384.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Weldoflange-18x9.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-elbo-flange\">Flange Elbo: <\/h4>\n\n\n\n<p>Uma flange Elbo combina a funcionalidade de um cotovelo e de uma flange. Este design simplifica a liga\u00e7\u00e3o de tubos num \u00e2ngulo.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"400\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Elboflange.webp\" alt=\"Elboflange\" class=\"wp-image-22847\" style=\"width:600px\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Elboflange.webp 800w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Elboflange-300x150.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Elboflange-768x384.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Elboflange-18x9.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-swivel-flange\"><strong>Flange girat\u00f3ria<\/strong><\/h4>\n\n\n\n<p>Uma flange girat\u00f3ria \u00e9 uma flange de pesco\u00e7o de soldadura \u00fanica em que o anel interior pode rodar 360 graus no anel exterior para alinhar a flange padr\u00e3o e os orif\u00edcios dos parafusos. Esta carater\u00edstica torna-a ideal para tubagens, aplica\u00e7\u00f5es submarinas e offshore, permitindo aos mergulhadores ajustar os orif\u00edcios dos parafusos de forma mais r\u00e1pida e conveniente.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"400\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Swivel-flange.webp\" alt=\"Flange girat\u00f3ria\" class=\"wp-image-22855\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Swivel-flange.webp 800w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Swivel-flange-300x150.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Swivel-flange-768x384.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Swivel-flange-18x9.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-reducing-flange\"><strong>Flange de redu\u00e7\u00e3o<\/strong><\/h4>\n\n\n\n<p>Tamb\u00e9m conhecidas como flanges redutoras, s\u00e3o utilizadas para reduzir o di\u00e2metro de uma tubagem para o tamanho necess\u00e1rio.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"400\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Reducing-flange.webp\" alt=\"Flange de redu\u00e7\u00e3o\" class=\"wp-image-22852\" style=\"width:600px\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Reducing-flange.webp 800w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Reducing-flange-300x150.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Reducing-flange-768x384.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/Reducing-flange-18x9.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-expanding-flange\"><strong>Flange de expans\u00e3o<\/strong><\/h4>\n\n\n\n<p>As flanges de expans\u00e3o t\u00eam a fun\u00e7\u00e3o oposta \u00e0s flanges de redu\u00e7\u00e3o; s\u00e3o utilizadas para aumentar o di\u00e2metro da tubagem. Ligam as tubagens a dispositivos mec\u00e2nicos como compressores, v\u00e1lvulas e bombas, que t\u00eam diferentes tamanhos de entrada.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Tipo de flange<\/strong><\/td><td><strong>NPS (polegada)<\/strong><\/td><td><strong>Classe ASME<\/strong><\/td><td><strong>Rostos<\/strong><\/td><td><strong>Integridade das articula\u00e7\u00f5es<\/strong><\/td><td><strong>Soldadura<\/strong><\/td><td><strong>Normas ASME<\/strong><\/td><\/tr><tr><td><strong>Flange de pesco\u00e7o de soldadura<\/strong><\/td><td>Todos<\/td><td>Todos<\/td><td>Todos<\/td><td>Elevado<\/td><td>Uma soldadura de topo.<\/td><td>B16.5, B31.3<\/td><\/tr><tr><td><strong>Flange de encaixe<\/strong><\/td><td>Muitos<\/td><td>Em geral, \u2264 600<\/td><td>FF, RF<\/td><td>M\u00e9dio<\/td><td>Uma ou duas soldaduras em \u00e2ngulo.<\/td><td>B16.5, B31.3<\/td><\/tr><tr><td><strong>Flange de soldadura de encaixe<\/strong><\/td><td>Em geral, \u2264 \u00bd a 2. M\u00e1ximo \u2264 4<\/td><td>\u2264 600<\/td><td>FF, RF<\/td><td>M\u00e9dio<\/td><td>Uma soldadura de filete.<\/td><td>B16.5, B31.3<\/td><\/tr><tr><td><strong>Flange de anel de junta sobreposta<\/strong><\/td><td rowspan=\"2\">N\u00e3o utilizado para tamanhos pequenos.<\/td><td>NA<\/td><td>FF<\/td><td>NA<\/td><td>Nenhum<\/td><td>B16.5, B31.3<\/td><\/tr><tr><td><strong>Extremidade do flange da junta sobreposta<\/strong><\/td><td>150 a 2500<\/td><td>FF, RF, RTJ<\/td><td>Elevado<\/td><td>Uma soldadura de topo.<\/td><td>B16.9, B31.3<\/td><\/tr><tr><td><strong>Flange roscada<\/strong><\/td><td>Em geral, \u2264 \u00bd a 2. M\u00e1ximo \u2264 4<\/td><td>\u2264 300<\/td><td>FF, RF<\/td><td>Baixa<\/td><td>Nenhum<\/td><td>B1.20.1, B31.3<\/td><\/tr><tr><td><strong>Flange cega<\/strong><\/td><td>Todos<\/td><td>Todos<\/td><td>Todos<\/td><td>NA<\/td><td>Nenhum<\/td><td>B16.5, B31.3<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Tabela de resumo do tipo de flange<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-fundamental-materials-for-flanges-production\">Materiais fundamentais para a produ\u00e7\u00e3o de flanges<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-carbon-steel\">A\u00e7o carbono<\/h3>\n\n\n\n<p>\u00c9 o tipo de a\u00e7o mais comummente utilizado para muitas flanges. Devido \u00e0s suas excelentes propriedades mec\u00e2nicas, como elevada resist\u00eancia e dureza.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-alloy-steel\">Liga de a\u00e7o<\/h3>\n\n\n\n<p>O a\u00e7o de liga \u00e9 um a\u00e7o misturado com elementos como o cr\u00f3mio, o n\u00edquel ou o molibd\u00e9nio para alterar ou melhorar as suas propriedades. \u00c9 utilizado para flanges que s\u00e3o sujeitas a condi\u00e7\u00f5es de alta press\u00e3o e alta temperatura.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-stainless-steel\">A\u00e7o inoxid\u00e1vel<\/h3>\n\n\n\n<p>O a\u00e7o inoxid\u00e1vel \u00e9 uma liga de a\u00e7o e cr\u00f3mio. O cr\u00f3mio no a\u00e7o confere-lhe uma melhor resist\u00eancia \u00e0 corros\u00e3o do que o a\u00e7o-carbono. \u00c9 mais adequado para flanges expostas a humidade elevada.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-cast-irons\">Ferros fundidos<\/h3>\n\n\n\n<p>O ferro fundido \u00e9 uma liga de carbono, sil\u00edcio e v\u00e1rias outras ligas. Uma camada de grafite preta cresce no exterior do ferro como resultado do sil\u00edcio que for\u00e7a o carbono a sair do metal. Como resultado, os ferros fundidos t\u00eam uma boa capacidade de fundi\u00e7\u00e3o, fluidez e maquinabilidade,<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-aluminum\">Alum\u00ednio<\/h3>\n\n\n\n<p>O alum\u00ednio \u00e9 um metal de resist\u00eancia m\u00e9dia que tem uma baixa densidade, ductilidade e maleabilidade. Quando comparado com o a\u00e7o-carbono e outras ligas comuns, apresenta uma resist\u00eancia superior \u00e0 corros\u00e3o. \u00c9 adequado para a constru\u00e7\u00e3o de flanges que requerem resist\u00eancia e baixo peso.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-brass\">Lat\u00e3o<\/h3>\n\n\n\n<p>Uma liga de zinco e cobre. No entanto, pode por vezes conter elementos adicionais de chumbo ou estanho. Tem uma excelente condutividade, alta temperatura e ductilidade a frio.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-pvc\">PVC<\/h3>\n\n\n\n<p><a href=\"https:\/\/firstmold.com\/pt\/guides\/pvc-plastic\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>O PVC \u00e9 um pl\u00e1stico<\/strong><\/a> que \u00e9 flex\u00edvel, f\u00e1cil de montar, barato e duradouro. \u00c9 muito utilizado devido \u00e0 sua resist\u00eancia \u00e0 corros\u00e3o biol\u00f3gica e qu\u00edmica. A adi\u00e7\u00e3o de plastificantes ao PVC torna-o mais macio e flex\u00edvel.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"400\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/pvc-flange.webp\" alt=\"flange em pvc\" class=\"wp-image-22861\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/pvc-flange.webp 800w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/pvc-flange-300x150.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/pvc-flange-768x384.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/08\/pvc-flange-18x9.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>As flanges tamb\u00e9m utilizam mat\u00e9rias-primas como o cobre e o tit\u00e2nio no seu fabrico. Tudo depende das carater\u00edsticas t\u00e9cnicas e das condi\u00e7\u00f5es de aplica\u00e7\u00e3o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-factors-to-consider-when-selecting-a-flange\">Factores a considerar na sele\u00e7\u00e3o de uma flange<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-flange-type\">Tipo de flange<\/h3>\n\n\n\n<p>As flanges de tubagem existem em diferentes tipos, cada um com carater\u00edsticas e aplica\u00e7\u00f5es \u00fanicas, tal como referido anteriormente. Por exemplo, as flanges de encaixe s\u00e3o mais f\u00e1ceis de alinhar e instalar, enquanto as flanges de pesco\u00e7o de soldadura proporcionam uma grande resist\u00eancia.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-face-type\">Tipo de rosto<\/h3>\n\n\n\n<p>A face de uma flange \u00e9 a \u00e1rea onde as juntas s\u00e3o colocadas e a flange \u00e9 apertada para proporcionar uma veda\u00e7\u00e3o. A resist\u00eancia da veda\u00e7\u00e3o \u00e9 crucial para a face da flange, que desempenha um papel vital tanto no servi\u00e7o como no desempenho da flange. Atualmente, existem diferentes tipos de faces de flange, cada uma com as suas pr\u00f3prias vantagens.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-material-for-flanges\">Material para flanges<\/h3>\n\n\n\n<p>O material da flange tem um impacto significativo no desempenho e no tempo de vida \u00fatil da flange. Alguns materiais s\u00e3o preferencialmente melhores do que outros, consoante as suas propriedades e a utiliza\u00e7\u00e3o do produto. Por exemplo, o a\u00e7o-carbono \u00e9 adequado para aplica\u00e7\u00f5es de uso geral, enquanto o a\u00e7o inoxid\u00e1vel \u00e9 adequado para condi\u00e7\u00f5es corrosivas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-dimensions-and-sizes\">Dimens\u00f5es e tamanhos<\/h3>\n\n\n\n<p>O tamanho da flange \u00e9 um aspeto fundamental a considerar quando se faz uma escolha. A disponibilidade de diferentes tamanhos de flanges garante um ajuste e uma utiliza\u00e7\u00e3o \u00f3ptimos no sistema de tubagens. A medi\u00e7\u00e3o exacta das dimens\u00f5es \u00e9 essencial para a manuten\u00e7\u00e3o e atualiza\u00e7\u00e3o do sistema de tubagens.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-pressure-and-temperature-rating\">Classifica\u00e7\u00e3o de press\u00e3o e temperatura<\/h3>\n\n\n\n<p>Esta classifica\u00e7\u00e3o \u00e9 um indicador cr\u00edtico da press\u00e3o m\u00e1xima que uma flange pode suportar e funcionar em seguran\u00e7a. A sele\u00e7\u00e3o de flanges com a classifica\u00e7\u00e3o de press\u00e3o adequada \u00e9 necess\u00e1ria para garantir a integridade e a seguran\u00e7a do sistema de tubagem em condi\u00e7\u00f5es de funcionamento. Para determinar a classifica\u00e7\u00e3o de press\u00e3o da flange, \u00e9 necess\u00e1rio ter em conta o seu material e as normas de fabrico, entre outros aspectos.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-cost-and-availability\">Custo e disponibilidade<\/h3>\n\n\n\n<p>As flanges de alta qualidade e duradouras podem implicar custos elevados, uma vez que oferecem desempenho e fiabilidade a longo prazo. Pelo contr\u00e1rio, reduzem significativamente o risco de repara\u00e7\u00f5es dispendiosas e de tempo de inatividade. Al\u00e9m disso, para evitar atrasos nos projectos, as flanges escolhidas devem estar prontamente dispon\u00edveis e ser provenientes de fornecedores reputados.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-manufacturing-methods\">M\u00e9todos de fabrico<\/h3>\n\n\n\n<p>As diferentes t\u00e9cnicas de fabrico de flanges conferem-lhes carater\u00edsticas distintas. Os dois principais m\u00e9todos utilizados s\u00e3o a fundi\u00e7\u00e3o e o forjamento.  O forjamento proporciona mais resist\u00eancia e durabilidade, enquanto a fundi\u00e7\u00e3o produz flanges com um processo de maquinagem mais suave.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-installation-and-maintenance-considerations\">Considera\u00e7\u00f5es sobre instala\u00e7\u00e3o e manuten\u00e7\u00e3o<\/h3>\n\n\n\n<p>A instala\u00e7\u00e3o e manuten\u00e7\u00e3o corretas das flanges garantem liga\u00e7\u00f5es duradouras, eficientes e seguras.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-applications-and-uses-of-flanges\">Aplica\u00e7\u00f5es e utiliza\u00e7\u00f5es dos flanges<\/h2>\n\n\n\n<p><strong>Ind\u00fastrias transformadoras<\/strong>: Por exemplo, a presen\u00e7a de flanges nas m\u00e1quinas de moldagem por inje\u00e7\u00e3o desempenha um papel vital no processo de fabrico de moldes. Proporcionam liga\u00e7\u00f5es seguras nas articula\u00e7\u00f5es de equipamentos como sistemas hidr\u00e1ulicos e pneum\u00e1ticos e fixa\u00e7\u00e3o de moldes. As liga\u00e7\u00f5es adequadas permitem o controlo e facilitam alinhamentos precisos, entre outros factores.<\/p>\n\n\n\n<p><strong>Produ\u00e7\u00e3o de energia<\/strong>:  Nas instala\u00e7\u00f5es de produ\u00e7\u00e3o de energia, como as centrais hidroel\u00e9ctricas e as centrais el\u00e9ctricas, as flanges t\u00eam uma fun\u00e7\u00e3o cr\u00edtica. Garantem liga\u00e7\u00f5es fortes e seguras nas juntas de bombas, turbinas e outras m\u00e1quinas dispon\u00edveis.<\/p>\n\n\n\n<p><strong>Tratamento de \u00e1gua e de \u00e1guas residuais:<\/strong> As flanges s\u00e3o muito utilizadas nos sistemas de esgotos e nas esta\u00e7\u00f5es de tratamento de \u00e1gua. Estabelecem liga\u00e7\u00f5es entre bombas, tubagens e outros equipamentos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\">Conclus\u00e3o<\/h2>\n\n\n\n<p>Em geral, as flanges s\u00e3o amplamente utilizadas em v\u00e1rios locais e, em todos estes sectores, s\u00e3o consideradas como um componente cr\u00edtico do sistema. Em conclus\u00e3o, compreender os diferentes tipos de flanges e as suas aplica\u00e7\u00f5es \u00e9 essencial para fazer selec\u00e7\u00f5es informadas que conduzam a aplica\u00e7\u00f5es industriais mais eficientes.<\/p>","protected":false},"excerpt":{"rendered":"<p>Explore os diferentes tipos de flanges, as suas utiliza\u00e7\u00f5es e vantagens. Saiba como escolher a flange correcta para as suas necessidades industriais.<\/p>","protected":false},"author":5,"featured_media":22857,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[48],"tags":[54],"class_list":["post-22842","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tips","tag-product-design"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Types of Flanges and Their Applications<\/title>\n<meta name=\"description\" content=\"Explore different flange types, their uses, and benefits. 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