{"id":27325,"date":"2024-06-08T12:27:54","date_gmt":"2024-06-08T04:27:54","guid":{"rendered":"https:\/\/sam-uk.com\/?p=27325"},"modified":"2024-06-29T10:29:43","modified_gmt":"2024-06-29T02:29:43","slug":"acessorios-para-tubos-de-pvc-5","status":"publish","type":"post","link":"https:\/\/www.sam-uk.com\/pt\/acessorios-para-tubos-de-pvc-5","title":{"rendered":"A diferen\u00e7a entre tubo de PVC NPT e BSPT e encaixe de tubo"},"content":{"rendered":"<p>Na compra de produtos com rosca <strong>tubos de pvc<\/strong> e <strong>acess\u00f3rios para tubos de pvc<\/strong>, muitos clientes n\u00e3o sabem muitas vezes como escolher. <strong>NPT<\/strong> ou <strong>BSPT<\/strong>? S\u00e3o iguais? Qual deles pode satisfazer as minhas necessidades? Quais s\u00e3o as diferen\u00e7as? Hoje vamos contar-lhe.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 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\">CONTE\u00daDO DO ARTIGO<\/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 o \u00edndice\"><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:\/\/www.sam-uk.com\/pt\/acessorios-para-tubos-de-pvc-5\/#Standard_definition_difference\" >Diferen\u00e7a de defini\u00e7\u00e3o standard<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sam-uk.com\/pt\/acessorios-para-tubos-de-pvc-5\/#Same_aspects\" >Os mesmos aspectos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sam-uk.com\/pt\/acessorios-para-tubos-de-pvc-5\/#The_difference_between_threaded_pipes_for_different_purposes\" >A diferen\u00e7a entre tubos roscados para diferentes fins<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Standard_definition_difference\"><\/span>Diferen\u00e7a de defini\u00e7\u00e3o standard<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>NPT<\/strong>(Nacional(Americana) <strong>Tubo de PVC<\/strong> Thread) \u00e9 definido por <strong>ANSI\/ASME<\/strong> padr\u00e3o enquanto <strong>BSPT<\/strong>(Padr\u00e3o Brit\u00e2nico <strong>Tubo de PVC<\/strong> Thread) segundo a norma brit\u00e2nica. S\u00e3o semelhantes, exceto por uma diferen\u00e7a importante. O \u00e2ngulo entre os flancos das roscas (se cortar o acess\u00f3rio ao meio ao comprido e medir o \u00e2ngulo da raiz \u00e0 crista e \u00e0 raiz) para NPT \u00e9 de 60 graus em vez de 55 graus como \u00e9 para BSPT. Assim, as roscas NPT t\u00eam picos e vales achatados, enquanto as roscas BSPT t\u00eam picos e vales redondos. Mas os tamanhos normalmente utilizados de <strong>NPT<\/strong> e <strong>BSPT<\/strong> <strong>tubos de pvc<\/strong> e <strong>acess\u00f3rios para tubos de pvc<\/strong> ambos s\u00e3o 1\/8\u2033, 1\/4\u2033, 3\/8\u2033, 1\/2\u2033, 3\/4\u2033, 1\u2033, 11\/4\u2033, 11\/2\u2033 e 2\u2033.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-27927\" src=\"https:\/\/sam-uk.com\/wp-content\/uploads\/2024\/06\/taperedL-and-straightR-fitting-examples-1320x459.jpg\" alt=\"NPT ou BSPT Diferen\u00e7a de defini\u00e7\u00e3o padr\u00e3o\" width=\"600\" height=\"209\" srcset=\"https:\/\/www.sam-uk.com\/wp-content\/uploads\/2024\/06\/taperedL-and-straightR-fitting-examples-1320x459.jpg 1320w, https:\/\/www.sam-uk.com\/wp-content\/uploads\/2024\/06\/taperedL-and-straightR-fitting-examples-150x52.jpg 150w, https:\/\/www.sam-uk.com\/wp-content\/uploads\/2024\/06\/taperedL-and-straightR-fitting-examples-18x6.jpg 18w, https:\/\/www.sam-uk.com\/wp-content\/uploads\/2024\/06\/taperedL-and-straightR-fitting-examples-1536x535.jpg 1536w, https:\/\/www.sam-uk.com\/wp-content\/uploads\/2024\/06\/taperedL-and-straightR-fitting-examples.jpg 1589w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Same_aspects\"><\/span>Os mesmos aspectos<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Ambos <strong>NPT<\/strong> e <strong>BSPT<\/strong> As roscas pertencem \u00e0 rosca c\u00f3nica. O cone pode permitir que as roscas formem uma veda\u00e7\u00e3o quando apertadas, uma vez que os seus flancos se comprimem um contra o outro. Os acess\u00f3rios de rosca c\u00f3nica e os acess\u00f3rios de compress\u00e3o op\u00f5em-se aos paralelos\/rectos, em que as roscas se limitam a manter as pe\u00e7as juntas e n\u00e3o proporcionam a veda\u00e7\u00e3o. Como o corpo da rosca \u00e9 afunilado (0,75 in\/ft ou 62,5mm\/m), um di\u00e2metro maior continua a comprimir-se num di\u00e2metro mais pequeno e, finalmente, forma uma veda\u00e7\u00e3o (n\u00e3o fica espa\u00e7o entre as cristas e as ra\u00edzes das roscas devido ao afunilamento). Isto significa que os acess\u00f3rios de rosca c\u00f3nica n\u00e3o devem ter rebarbas e devem ser lubrificados com um material lubrificante, como pasta ou fita lubrificante. A utiliza\u00e7\u00e3o de fita adesiva tamb\u00e9m ajuda a limitar a corros\u00e3o nas roscas, o que, de outra forma, pode tornar a desmontagem futura quase imposs\u00edvel.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-27928\" src=\"https:\/\/sam-uk.com\/wp-content\/uploads\/2024\/06\/BSP-vs-NPT-fittings-which-one-do-you-need-800x385-1.jpg\" alt=\"NPT ou BSPT Mesmos aspectos\" width=\"600\" height=\"193\" srcset=\"https:\/\/www.sam-uk.com\/wp-content\/uploads\/2024\/06\/BSP-vs-NPT-fittings-which-one-do-you-need-800x385-1.jpg 600w, https:\/\/www.sam-uk.com\/wp-content\/uploads\/2024\/06\/BSP-vs-NPT-fittings-which-one-do-you-need-800x385-1-150x48.jpg 150w, https:\/\/www.sam-uk.com\/wp-content\/uploads\/2024\/06\/BSP-vs-NPT-fittings-which-one-do-you-need-800x385-1-18x6.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_difference_between_threaded_pipes_for_different_purposes\"><\/span>A diferen\u00e7a entre tubos roscados para diferentes fins<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Os sistemas de press\u00e3o na ind\u00fastria de processamento utilizam diferentes formas de veda\u00e7\u00e3o, dependendo de muitos factores, como a regi\u00e3o geogr\u00e1fica, a dimens\u00e3o do sistema de press\u00e3o e o ambiente. Os tubos roscados podem proporcionar uma veda\u00e7\u00e3o eficaz para tubos que transportam l\u00edquidos, gases, vapor e fluido hidr\u00e1ulico. Estas roscas s\u00e3o agora utilizadas noutros materiais para al\u00e9m do a\u00e7o e do lat\u00e3o, incluindo PTFE, PVC, nylon, bronze e ferro fundido. Existem diferen\u00e7as regionais nos tipos de veda\u00e7\u00e3o, bem como prefer\u00eancias industriais, pelo que s\u00e3o sempre utilizados diferentes tipos de rosca em diferentes regi\u00f5es.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-27926\" src=\"https:\/\/sam-uk.com\/wp-content\/uploads\/2024\/06\/Merit-Brass-Pipe-Nipple-Product-Offering-Cover-Photo-1.jpg\" alt=\"Tubos roscados de diferentes materiais\" width=\"600\" height=\"126\" srcset=\"https:\/\/www.sam-uk.com\/wp-content\/uploads\/2024\/06\/Merit-Brass-Pipe-Nipple-Product-Offering-Cover-Photo-1.jpg 600w, https:\/\/www.sam-uk.com\/wp-content\/uploads\/2024\/06\/Merit-Brass-Pipe-Nipple-Product-Offering-Cover-Photo-1-150x32.jpg 150w, https:\/\/www.sam-uk.com\/wp-content\/uploads\/2024\/06\/Merit-Brass-Pipe-Nipple-Product-Offering-Cover-Photo-1-18x4.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>Quando compram tubos de pvc roscados e acess\u00f3rios para tubos de pvc, muitos clientes n\u00e3o sabem muitas vezes como escolher. NPT ou BSPT? S\u00e3o iguais? Qual deles pode satisfazer as minhas necessidades? Quais s\u00e3o as diferen\u00e7as? Hoje vamos contar-lhe. Diferen\u00e7a de defini\u00e7\u00e3o padr\u00e3o A NPT (National (American) PVC Pipe Thread) \u00e9 definida pela norma ANSI\/ASME, enquanto a BSPT (British Standrad PVC Pipe...<\/p>","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[427],"tags":[],"class_list":["post-27325","post","type-post","status-publish","format-standard","hentry","category-technical-guidance"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.sam-uk.com\/pt\/wp-json\/wp\/v2\/posts\/27325","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sam-uk.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sam-uk.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sam-uk.com\/pt\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sam-uk.com\/pt\/wp-json\/wp\/v2\/comments?post=27325"}],"version-history":[{"count":0,"href":"https:\/\/www.sam-uk.com\/pt\/wp-json\/wp\/v2\/posts\/27325\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.sam-uk.com\/pt\/wp-json\/wp\/v2\/media?parent=27325"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sam-uk.com\/pt\/wp-json\/wp\/v2\/categories?post=27325"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sam-uk.com\/pt\/wp-json\/wp\/v2\/tags?post=27325"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}