{"id":15531,"date":"2026-08-06T01:46:06","date_gmt":"2026-08-06T01:46:06","guid":{"rendered":"https:\/\/npt-lok.com\/?p=15531"},"modified":"2026-08-13T05:09:42","modified_gmt":"2026-08-13T05:09:42","slug":"tipos-de-niples-sextavados-materiais-roscas-tamanhos","status":"publish","type":"post","link":"https:\/\/npt-lok.com\/pt\/hex-nipple-types\/","title":{"rendered":"Tipos de niples sextavados: materiais, roscas e dimens\u00f5es"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Obtendo o <\/span><a href=\"https:\/\/npt-lok.com\/pt\/conexoes-para-tubos-de-instrumentacao\/mamilo-hexagonal\/\"><span style=\"font-weight: 400;\">mamilo hexagonal<\/span><\/a><span style=\"font-weight: 400;\"> Uma conex\u00e3o incorreta pode causar incompatibilidade de rosca, vazamentos ou falhas prematuras. Portanto, \u00e9 fundamental escolher o tipo certo para suas necessidades. Este guia explica os tipos de niples sextavados, materiais, op\u00e7\u00f5es de rosca, tamanhos e como selecionar o niple sextavado adequado para sua aplica\u00e7\u00e3o.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13455\" src=\"https:\/\/npt-lok.com\/wp-content\/uploads\/2024\/07\/Hex-nipple-banner-e1785980101263.jpg\" alt=\"Faixa de mamilo hexagonal\" width=\"1010\" height=\"472\" srcset=\"https:\/\/npt-lok.com\/wp-content\/uploads\/2024\/07\/Hex-nipple-banner-e1785980101263.jpg 1010w, https:\/\/npt-lok.com\/wp-content\/uploads\/2024\/07\/Hex-nipple-banner-e1785980101263-768x359.jpg 768w, https:\/\/npt-lok.com\/wp-content\/uploads\/2024\/07\/Hex-nipple-banner-e1785980101263-18x8.jpg 18w\" sizes=\"auto, (max-width: 1010px) 100vw, 1010px\" \/><\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabela de conte\u00fado\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Alternar<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/npt-lok.com\/pt\/hex-nipple-types\/#What_is_a_Hex_Nipple\" >O que \u00e9 um niple hexagonal?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/npt-lok.com\/pt\/hex-nipple-types\/#Hex_Nipple_Types\" >Tipos de bicos hexagonais<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/npt-lok.com\/pt\/hex-nipple-types\/#Standard_Hex_Nipple_%E2%80%93_HN_Series\" >Niple sextavado padr\u00e3o \u2013 S\u00e9rie HN<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/npt-lok.com\/pt\/hex-nipple-types\/#Long_Hex_Nipple_%E2%80%93_HL_Series\" >Niple hexagonal longo \u2013 S\u00e9rie HL<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/npt-lok.com\/pt\/hex-nipple-types\/#Reducing_Hex_Nipple\" >Niple hexagonal redutor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/npt-lok.com\/pt\/hex-nipple-types\/#Special_Pipe_Nipples_%E2%80%93_SPN_Series\" >Niples Especiais para Tubos \u2013 S\u00e9rie SPN<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/npt-lok.com\/pt\/hex-nipple-types\/#Hex_Nipple_Materials\" >Materiais para Niples Hexagonais<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/npt-lok.com\/pt\/hex-nipple-types\/#Hex_Nipple_Thread_Options\" >Op\u00e7\u00f5es de rosca sextavada para niples<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/npt-lok.com\/pt\/hex-nipple-types\/#Selection_Guide\" >Guia de Sele\u00e7\u00e3o<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/npt-lok.com\/pt\/hex-nipple-types\/#Step_1_Confirm_Material\" >Passo 1: Confirmar o material<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/npt-lok.com\/pt\/hex-nipple-types\/#Step_2_Confirm_Thread_Standard_Size\" >Passo 2: Confirme o padr\u00e3o e o tamanho da rosca.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/npt-lok.com\/pt\/hex-nipple-types\/#Step_3_Verify_Working_Pressure\" >Etapa 3: Verificar a press\u00e3o de trabalho<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/npt-lok.com\/pt\/hex-nipple-types\/#Part_Number_Naming_Rule\" >Regra de nomenclatura de n\u00fameros de pe\u00e7as<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/npt-lok.com\/pt\/hex-nipple-types\/#FAQ\" >Perguntas frequentes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/npt-lok.com\/pt\/hex-nipple-types\/#Contact_Us\" >Contate-nos<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_a_Hex_Nipple\"><\/span><span style=\"font-weight: 400;\">O que \u00e9 um niple hexagonal?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Um niple hexagonal \u00e9 uma conex\u00e3o curta para tubos com roscas macho em ambas as extremidades e uma se\u00e7\u00e3o central hexagonal (de seis lados) entre as extremidades roscadas.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Recurso<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Valor pr\u00e1tico<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Centro hexagonal para fixa\u00e7\u00e3o com chave.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">O torque \u00e9 aplicado nas faces sextavadas, n\u00e3o nas roscas de veda\u00e7\u00e3o.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Rosca macho em ambas as extremidades<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Conex\u00e3o direta entre duas portas com rosca f\u00eamea \u2013 sem necessidade de adaptadores adicionais.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">furo interno reto<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Minimiza a restri\u00e7\u00e3o de fluxo em compara\u00e7\u00e3o com conex\u00f5es com restri\u00e7\u00e3o interna.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Se\u00e7\u00f5es separadas para hex\u00e1gonos e roscas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ajuda a reduzir danos \u00e0 rosca durante a instala\u00e7\u00e3o e manuten\u00e7\u00e3o.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">O principal diferencial est\u00e1 nas faces sextavadas. Durante a instala\u00e7\u00e3o, a chave se encaixa nas faces sextavadas em vez das extremidades roscadas, reduzindo o risco de danos \u00e0 rosca e facilitando a instala\u00e7\u00e3o ou remo\u00e7\u00e3o da conex\u00e3o durante a manuten\u00e7\u00e3o.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Hex_Nipple_Types\"><\/span><span style=\"font-weight: 400;\">Tipos de bicos hexagonais<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Os principais tipos incluem niples sextavados padr\u00e3o, niples sextavados longos, niples sextavados redutores e niples especiais para tubos.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Standard_Hex_Nipple_%E2%80%93_HN_Series\"><\/span><span style=\"font-weight: 400;\">Niple sextavado padr\u00e3o \u2013 S\u00e9rie HN<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-15345 alignleft\" src=\"https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/06\/Hex-nipples.png\" alt=\"Hex nipples\" width=\"191\" height=\"186\" srcset=\"https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/06\/Hex-nipples.png 191w, https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/06\/Hex-nipples-12x12.png 12w\" sizes=\"auto, (max-width: 191px) 100vw, 191px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">A s\u00e9rie HN \u00e9 o niple sextavado padr\u00e3o. Ambas as extremidades possuem rosca macho. Elas podem ter o mesmo tamanho ou tamanhos diferentes, dependendo das suas necessidades de conex\u00e3o. A se\u00e7\u00e3o sextavada \u00e9 dimensionada para proporcionar uma boa fixa\u00e7\u00e3o com chave, sem adicionar volume desnecess\u00e1rio. \u00c9 ideal para a maioria das instala\u00e7\u00f5es de tubula\u00e7\u00e3o em geral.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A s\u00e9rie HN est\u00e1 dispon\u00edvel em diversas configura\u00e7\u00f5es de rosca, incluindo combina\u00e7\u00f5es NPT \u00d7 NPT, NPT \u00d7 ISO C\u00f4nica (RT), NPT \u00d7 ISO Paralela (RS), NPT \u00d7 SAE e NPT \u00d7 M\u00e9trica. Os tamanhos padr\u00e3o variam de 1\/8\u2033 a 2\u2033 NPT.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Press\u00e3o de trabalho (a\u00e7o inoxid\u00e1vel 316, temperatura ambiente):<\/span><\/p>\n<p><span style=\"font-weight: 400;\">1\/8\u2033 NPT: 10.000 psig<\/span><\/p>\n<p><span style=\"font-weight: 400;\">1\/4\u2033 NPT: 8.000 psig<\/span><\/p>\n<p><span style=\"font-weight: 400;\">3\/8\u2033 NPT: 7.800 psig<\/span><\/p>\n<p><span style=\"font-weight: 400;\">1\/2\u2033 NPT: 7.700 psig<\/span><\/p>\n<p><span style=\"font-weight: 400;\">3\/4\u2033 NPT: 7.300 psig<\/span><\/p>\n<p><span style=\"font-weight: 400;\">1\u2033 NPT: 5.300 psig<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Long_Hex_Nipple_%E2%80%93_HL_Series\"><\/span><a href=\"https:\/\/npt-lok.com\/pt\/conexoes-para-tubos-de-instrumentacao\/mamilo-longo-hexagonal\/\"><span style=\"font-weight: 400;\">Niple hexagonal longo<\/span><\/a><span style=\"font-weight: 400;\"> \u2013 S\u00e9rie HL<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-15534 size-full\" src=\"https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/08\/hex-long-nipple-e1785980599890.png\" alt=\"mamilo longo hexagonal\" width=\"191\" height=\"135\" \/>A se\u00e7\u00e3o hexagonal central da s\u00e9rie HL \u00e9 mais longa do que a da s\u00e9rie padr\u00e3o, proporcionando uma \u00e1rea de contato maior para a chave. Esse design \u00e9 particularmente \u00fatil em aplica\u00e7\u00f5es de instala\u00e7\u00e3o que exigem alto torque. A face hexagonal estendida oferece melhor alavancagem e uma pegada mais segura para a chave. Tamb\u00e9m permite que a chave se aproxime da junta a partir de uma gama maior de \u00e2ngulos em espa\u00e7os confinados.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Comprimentos padr\u00e3o dispon\u00edveis: 1,5\u2033, 2\u2033, 2,5\u2033, 3\u2033, 4\u2033 e 6\u2033<\/span><\/p>\n<p><span style=\"font-weight: 400;\">S\u00e3o \u00fateis para conex\u00f5es de antepara em paredes espessas, transi\u00e7\u00f5es entre flanges e tubula\u00e7\u00f5es, ou qualquer aplica\u00e7\u00e3o de alto torque onde um niple sextavado padr\u00e3o n\u00e3o oferece ader\u00eancia suficiente.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Reducing_Hex_Nipple\"><\/span><a href=\"https:\/\/npt-lok.com\/pt\/mamilo-redutor-hexagonal\/\"><span style=\"font-weight: 400;\">Niple hexagonal redutor<\/span><\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Os niples sextavados redutores possuem roscas de tamanhos diferentes em cada extremidade, permitindo a conex\u00e3o direta entre duas portas com di\u00e2metros diferentes sem a necessidade de adaptadores adicionais.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Nossa s\u00e9rie HN suporta configura\u00e7\u00f5es de redu\u00e7\u00e3o. Basta especificar tamanhos de rosca diferentes para cada extremidade. Por exemplo, SS-HN-MN8-MN4 oferece 1\/2\u2033 NPT em uma extremidade e 1\/4\u2033 NPT na outra.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Aplica\u00e7\u00f5es comuns: conex\u00e3o de tubos de grande di\u00e2metro a equipamentos de pequeno di\u00e2metro, liga\u00e7\u00f5es de man\u00f4metros ou qualquer transi\u00e7\u00e3o entre diferentes tamanhos de tubula\u00e7\u00e3o.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Special_Pipe_Nipples_%E2%80%93_SPN_Series\"><\/span><span style=\"font-weight: 400;\">Niples Especiais para Tubos \u2013 S\u00e9rie SPN<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-15535 alignleft\" src=\"https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/08\/special-nipple-e1785980630289.png\" alt=\"special pipe nipple\" width=\"191\" height=\"116\" \/>Para aplica\u00e7\u00f5es que exigem comprimentos personalizados ou configura\u00e7\u00f5es n\u00e3o padronizadas, al\u00e9m das op\u00e7\u00f5es de niples padr\u00e3o, longos e curtos, a s\u00e9rie SPN oferece flexibilidade para projetos de tubula\u00e7\u00e3o especializados onde niples convencionais n\u00e3o se encaixam. Comprimentos personalizados e configura\u00e7\u00f5es n\u00e3o padronizadas est\u00e3o dispon\u00edveis.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Hex_Nipple_Materials\"><\/span><span style=\"font-weight: 400;\">Materiais para Niples Hexagonais<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><b>A\u00e7o inoxid\u00e1vel 316<\/b><span style=\"font-weight: 400;\"> Oferece a melhor resist\u00eancia \u00e0 corros\u00e3o. O teor de molibd\u00eanio resiste \u00e0 corros\u00e3o por pites e frestas. Pode ser usado em ambientes qu\u00edmicos, marinhos, de \u00e1gua salgada e em meios agressivos. <\/span><\/p>\n<p><b>A\u00e7o inoxid\u00e1vel 304<\/b><span style=\"font-weight: 400;\"> Custa menos, mas ainda assim \u00e9 adequado para uso industrial geral, processamento de alimentos e condi\u00e7\u00f5es atmosf\u00e9ricas limpas.<\/span><b> <\/b><\/p>\n<p><b>A\u00e7o carbono<\/b><span style=\"font-weight: 400;\"> Possui alta resist\u00eancia \u00e0 tra\u00e7\u00e3o para tubula\u00e7\u00f5es estruturais e de uso geral \u2014 zincado para prote\u00e7\u00e3o contra ferrugem.<\/span><\/p>\n<p><a href=\"https:\/\/npt-lok.com\/pt\/conexoes-para-tubos-de-instrumentacao\/bico-sextavado-de-latao\/\"><b>Lat\u00e3o<\/b><\/a><span style=\"font-weight: 400;\"> N\u00e3o produz fa\u00edscas \u2014 ideal para sistemas pneum\u00e1ticos, tubula\u00e7\u00f5es de \u00e1gua e ambientes explosivos.<\/span> <b>Alum\u00ednio <\/b><span style=\"font-weight: 400;\">\u00c9 indicado para aplica\u00e7\u00f5es leves e especiais.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Material<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00f3digo<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Padr\u00e3o de barras de estoque<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Padr\u00e3o de forjamento<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">A\u00e7o inoxid\u00e1vel 316<\/span><\/td>\n<td><span style=\"font-weight: 400;\">SS<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASTM A276<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASTM A182<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">A\u00e7o inoxid\u00e1vel 304<\/span><\/td>\n<td><span style=\"font-weight: 400;\">S4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASTM A276<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASTM A182<\/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;\">C<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASTM A108<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASTM A105<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Lat\u00e3o<\/span><\/td>\n<td><span style=\"font-weight: 400;\">B<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASTM B16\/B453<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASTM B283<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Alum\u00ednio<\/span><\/td>\n<td><span style=\"font-weight: 400;\">AL<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASTM B211<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASTM B247<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Hex_Nipple_Thread_Options\"><\/span><span style=\"font-weight: 400;\">Op\u00e7\u00f5es de rosca sextavada para niples<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Os cinco padr\u00f5es de rosca listados abaixo abrangem a grande maioria dos sistemas de tubula\u00e7\u00e3o globais.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Padr\u00e3o de rosca<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Especifica\u00e7\u00e3o<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Mercado prim\u00e1rio<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/npt-lok.com\/pt\/conexoes-para-tubos-de-instrumentacao\/conexoes-npt\/\"><span style=\"font-weight: 400;\">TNP<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">ASME B1.20.1, SAE AS71051<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Am\u00e9rica do Norte<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">ISO C\u00f4nico \/ BSPT<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ISO 7\/1, BS EN 10226-1, JIS B0203<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Europa, \u00c1sia<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">ISO Paralelo \/ BSPP<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ISO 228, JIS B0202<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Instrumenta\u00e7\u00e3o europeia<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">SAE (Unificado)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">ASME B1.1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Hidr\u00e1ulica, automotiva<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">M\u00e9trica<\/span><\/td>\n<td><span style=\"font-weight: 400;\">DIN \/ JIS<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Regi\u00f5es do sistema m\u00e9trico<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><b>Combina\u00e7\u00f5es comuns<\/b><span style=\"font-weight: 400;\">:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">NPT \u00d7 NPT \u2013 Sistemas de tubula\u00e7\u00e3o padr\u00e3o norte-americanos<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Conex\u00f5es c\u00f4nicas NPT \u00d7 ISO \u2013 Conex\u00f5es padr\u00e3o cruzado (equipamentos dos EUA \u00d7 tubula\u00e7\u00f5es europeias)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">NPT \u00d7 ISO Paralelo \u2013 Rosca americana \u00d7 Veda\u00e7\u00e3o com rosca reta europeia<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">NPT \u00d7 M\u00e9trico \u2013 Sistemas dos EUA \u00d7 interfaces de equipamentos m\u00e9tricos<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Sistema m\u00e9trico \u00d7 Sistema m\u00e9trico \u2013 Sistemas m\u00e9tricos completos<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Selection_Guide\"><\/span><span style=\"font-weight: 400;\">Guia de Sele\u00e7\u00e3o<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Selecionar o niple hexagonal correto para o seu projeto pode ser dividido em tr\u00eas etapas simples.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Step_1_Confirm_Material\"><\/span><span style=\"font-weight: 400;\">Passo 1: Confirmar o material<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Baseie a sua escolha de materiais nas condi\u00e7\u00f5es de opera\u00e7\u00e3o.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A\u00e7o inoxid\u00e1vel 316: meios corrosivos, \u00e1gua salgada, alta temperatura.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A\u00e7o inoxid\u00e1vel 304: uso industrial geral, processamento de alimentos, ambientes limpos<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A\u00e7o carbono: estrutural, tubula\u00e7\u00e3o em geral (zincado)<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Lat\u00e3o: pneum\u00e1tico, tubula\u00e7\u00f5es de \u00e1gua, anti-fa\u00edsca<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Alum\u00ednio: leve, especial<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Step_2_Confirm_Thread_Standard_Size\"><\/span><span style=\"font-weight: 400;\">Passo 2: Confirme o padr\u00e3o e o tamanho da rosca.<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Verifique a porta de acoplamento em seu equipamento ou tubula\u00e7\u00e3o:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Equipamentos norte-americanos \/ Projetos nos EUA \u2192 NPT<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Equipamentos europeus \/ Projetos europeus \u2192 BSPT (ISO C\u00f4nico) ou BSPP (ISO Paralelo)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Equipamentos japoneses \u2192 JIS (Sistema M\u00e9trico)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Equipamento alem\u00e3o \u2192 DIN (M\u00e9trico)<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Verifique tamb\u00e9m se ambas as extremidades t\u00eam o mesmo tamanho (niple reto) ou tamanhos diferentes (niple redutor). Em caso de d\u00favida, consulte a documenta\u00e7\u00e3o do fabricante do equipamento ou utilize um calibrador de rosca para confirmar.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Me\u00e7a o comprimento de ponta a ponta. Isso inclui ambas as partes roscadas e o centro hexagonal. N\u00e3o me\u00e7a apenas a parte roscada. O comprimento total (L) determina a dist\u00e2ncia entre as duas portas conectadas. Se for muito curto, voc\u00ea n\u00e3o conseguir\u00e1 alcan\u00e7ar. Se for muito longo, n\u00e3o caber\u00e1.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Step_3_Verify_Working_Pressure\"><\/span><span style=\"font-weight: 400;\">Etapa 3: Verificar a press\u00e3o de trabalho<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Ap\u00f3s selecionar o material e a configura\u00e7\u00e3o da rosca, confirme se a press\u00e3o de trabalho nominal excede a press\u00e3o m\u00e1xima de opera\u00e7\u00e3o do seu sistema.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Algumas regras de press\u00e3o a serem lembradas: tamanho menor significa press\u00e3o maior \u2013 uma conex\u00e3o de 1\/8\u2033 NPT em a\u00e7o inoxid\u00e1vel 316 suporta 10.000 psig, enquanto uma de 1\u2033 NPT suporta cerca de 5.300 psig. A capacidade de press\u00e3o do a\u00e7o inoxid\u00e1vel 316 \u00e9 aproximadamente o dobro da do lat\u00e3o. A capacidade de press\u00e3o do a\u00e7o carbono e do lat\u00e3o \u00e9 aproximadamente 50% maior que a do a\u00e7o inoxid\u00e1vel 316. A temperatura reduz a capacidade de press\u00e3o \u2013 para servi\u00e7os com vapor ou \u00f3leo quente, use a\u00e7o inoxid\u00e1vel e ajuste a capacidade de acordo.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Sempre considere uma margem de seguran\u00e7a razo\u00e1vel entre a press\u00e3o nominal e a press\u00e3o real do seu sistema.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Part_Number_Naming_Rule\"><\/span><span style=\"font-weight: 400;\">Regra de nomenclatura de n\u00fameros de pe\u00e7as<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Breve explica\u00e7\u00e3o de como decodificar os n\u00fameros de pe\u00e7a NPTLOK.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-15536\" src=\"https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/08\/discrimination.png\" alt=\"Regra de nomenclatura de n\u00fameros de pe\u00e7as\" width=\"775\" height=\"255\" srcset=\"https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/08\/discrimination.png 775w, https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/08\/discrimination-768x253.png 768w, https:\/\/npt-lok.com\/wp-content\/uploads\/2026\/08\/discrimination-18x6.png 18w\" sizes=\"auto, (max-width: 775px) 100vw, 775px\" \/><\/p>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Segmento de c\u00f3digo<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Significado<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Op\u00e7\u00f5es<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Material<\/span><\/td>\n<td><span style=\"font-weight: 400;\">C\u00f3digo do material<\/span><\/td>\n<td><span style=\"font-weight: 400;\">SS = A\u00e7o inoxid\u00e1vel 316, S4 = A\u00e7o inoxid\u00e1vel 304, C = A\u00e7o carbono, B = Lat\u00e3o, AL = Alum\u00ednio<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">S\u00e9rie<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Fam\u00edlia de produtos<\/span><\/td>\n<td><span style=\"font-weight: 400;\">HN = Niple Hexagonal, HL = Niple Hexagonal Longo, CN = Niple Fechado, SPN = Niple Especial para Tubos<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Fio<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Tipo de rosca<\/span><\/td>\n<td><span style=\"font-weight: 400;\">MN = Rosca NPT macho, RT = Rosca c\u00f4nica ISO, RS = Rosca paralela ISO<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Tamanho<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Designador de tamanho<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2 = 1\/8\u2033, 4 = 1\/4\u2033, 6 = 3\/8\u2033, 8 = 1\/2\u2033, 12 = 3\/4\u2033, 16 = 1\u2033<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"FAQ\"><\/span><span style=\"font-weight: 400;\">Perguntas frequentes<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">P1. Qual \u00e9 exatamente a diferen\u00e7a entre um nipple fechado e um nipple hexagonal? Qual deles devo usar?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Um niple curto n\u00e3o possui se\u00e7\u00e3o hexagonal \u2014 voc\u00ea precisa segurar a rosca diretamente com uma chave de cano. Isso danifica a rosca. Um niple hexagonal oferece um centro hexagonal para segurar a chave, de modo que a rosca permane\u00e7a intacta. Use um niple hexagonal para instrumenta\u00e7\u00e3o, alta press\u00e3o ou qualquer conex\u00e3o que possa precisar ser desmontada posteriormente. Use um niple curto apenas para instala\u00e7\u00f5es permanentes de baixa press\u00e3o onde o espa\u00e7o \u00e9 extremamente limitado.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Q2. Qual a press\u00e3o m\u00e1xima que uma conex\u00e3o hexagonal pode suportar?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Depende do material e do tamanho. Classifica\u00e7\u00f5es do a\u00e7o inoxid\u00e1vel 316 (temperatura ambiente):<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Tamanho<\/span><\/td>\n<td><span style=\"font-weight: 400;\">A\u00e7o inoxid\u00e1vel 316<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Lat\u00e3o<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1\/8&#8243; NPT<\/span><\/td>\n<td><span style=\"font-weight: 400;\">10,000 psig<\/span><\/td>\n<td><span style=\"font-weight: 400;\">5,000 psig<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1\/4&#8243; NPT<\/span><\/td>\n<td><span style=\"font-weight: 400;\">8,000 psig<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4,000 psig<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1\/2&#8243; NPT<\/span><\/td>\n<td><span style=\"font-weight: 400;\">7,700 psig<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3,800 psig<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1&#8243; NPT<\/span><\/td>\n<td><span style=\"font-weight: 400;\">5,300 psig<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2,600 psig<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Q3. Can the length be customized?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Yes. Standard lengths: 1.5&#8243;, 2&#8243;, 2.5&#8243;, 3&#8243;, 4&#8243;, 6&#8243;. Custom lengths available. MOQ: 10 pieces. Contact us with your requirements.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Contact_Us\"><\/span><a href=\"https:\/\/npt-lok.com\/pt\/contato-para-um-orcamento\/\"><span style=\"font-weight: 400;\">Contate-nos<\/span><\/a><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">NPTLOK is a precision pipe fitting manufacturer serving instrumentation, hydraulic systems, chemical processing, oil &amp; gas, and power generation industries worldwide.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Our manufacturing facility is ISO 9001:2015 certified, and we operate both bar-stock and forging production lines to ensure full in-house quality control. Critical products undergo 100% pressure testing before shipment. Every fitting is marked with the NPTLOK manufacturer name for full traceability, and all male threads are capped for protection during shipping and storage.<\/span><\/p>\n<p>All external threads on NPTLOK hexagonal fittings are NPT standard rolled threads.<\/p>\n<p><span style=\"font-weight: 400;\">Download\u00a0 Our <a href=\"https:\/\/npt-lok.com\/wp-content\/uploads\/2022\/12\/Catalog-of-Pipe-Fittings-NPTLOK.pdf\">Catalog<\/a><\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Getting the hex nipple wrong means thread mismatch, leaks, or a fitting that fails sooner than it should. Therefore, it is very essential to choose the right type for your needs. This guide explains hex nipple types, materials, thread options, sizes, and how to select the right hex nipple for your application. What is a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","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":"","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-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":"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":""},"mobile":{"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":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-15531","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Hex Nipple Types: Materials, Threads &amp; Sizing - NPTLOK Instrumentation Tube Fittings and Valves<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/npt-lok.com\/pt\/tipos-de-mamilo-hexagonal\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hex Nipple Types: Materials, Threads &amp; Sizing - NPTLOK Instrumentation Tube Fittings and Valves\" \/>\n<meta property=\"og:description\" content=\"Getting the hex nipple wrong means thread mismatch, leaks, or a fitting that fails sooner than it should. 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