{"id":873,"date":"2021-06-25T18:33:30","date_gmt":"2021-06-25T21:33:30","guid":{"rendered":"https:\/\/centurytubos.com.br\/?p=873"},"modified":"2021-06-25T18:33:30","modified_gmt":"2021-06-25T21:33:30","slug":"roscas-bsp-e-npt","status":"publish","type":"post","link":"https:\/\/centurytubos.com.br\/blog\/artigos\/roscas-bsp-e-npt\/","title":{"rendered":"O que s\u00e3o roscas BSP e NPT e quais as suas diferen\u00e7as?"},"content":{"rendered":"

Quando pensamos em uma rede de tubos de condu\u00e7\u00e3o de flu\u00eddos, sejam eles l\u00edquidos ou gasosos, muitas vezes falamos de projetos grandiosos, com curvas, n\u00edveis distintos e grandes estruturas.<\/p>\n

Para que a condu\u00e7\u00e3o de qualquer flu\u00eddo seja feita de forma ininterrupta e correta, \u00e9 necess\u00e1rio contar com mais do que apenas bons tubos de condu\u00e7\u00e3o, mas tamb\u00e9m com roscas que far\u00e3o a jun\u00e7\u00e3o adequada entre eles. Para isso, existem as roscas BSP e NPT.<\/p>\n

O que s\u00e3o as roscas BSP e NPT?<\/h2>\n

Roscas s\u00e3o um conjunto de filetes em torno de uma superf\u00edcie cil\u00edndrica, que t\u00eam como fun\u00e7\u00e3o principal encaixar dois materiais atrav\u00e9s de um movimento helicoidal (giros repetidos em espiral em torno de um eixo).<\/p>\n

No caso das roscas BSP e NPT, elas realizam este trabalho em tubula\u00e7\u00f5es, impedindo vazamentos e dando sequ\u00eancia \u00e0 condu\u00e7\u00e3o dos flu\u00eddos por todo o sistema.<\/p>\n

O que \u00e9 rosca BSP?<\/h2>\n

A rosca BSP (British Standard Pipe) \u00e9 uma conex\u00e3o pr\u00f3pria para tubula\u00e7\u00f5es sobretudo em instala\u00e7\u00f5es domiciliares, prediais e industriais. \u00c9 bastante comum na Europa, \u00c1sia, Oceania e \u00c1frica do Sul.<\/p>\n

Tamb\u00e9m conhecida como \u201crosca paralela\u201d, ela obedece \u00e0s normas t\u00e9cnicas ISO 7\/1; NBR ISO 7.1; EN 10226; BS 21; BS EN 10226 e JIS B 0203, e adequa-se perfeitamente a tubos de condu\u00e7\u00e3o cujos di\u00e2metros estejam dentro da norma NBR 5580 (DIN 2440\/2441).<\/p>\n

O que \u00e9 rosca NPT?<\/h2>\n

Tamb\u00e9m chamada de rosca c\u00f4nica, a rosca NPT (National Pipe Thread) segue as normas ANSI B1.20.1 e NBR 12912, e adequa-se melhor a tubos de condu\u00e7\u00e3o dentro da norma NBR 5590 e seus di\u00e2metros espec\u00edficos.<\/p>\n

Muito popular nos EUA e no Canad\u00e1, \u00e9 mais usada em conex\u00f5es de tubula\u00e7\u00f5es mais robustas de \u00e1gua e g\u00e1s.<\/p>\n

Quais as diferen\u00e7as entre a rosca BSP e a rosca NPT?<\/h2>\n

Em ambas, a veda\u00e7\u00e3o ocorre pelo aperto dos filetes e eventual adi\u00e7\u00e3o de um vedante. Mas h\u00e1 diferen\u00e7as de aplica\u00e7\u00e3o que podem influir na seguran\u00e7a e qualidade da conex\u00e3o.<\/p>\n

A rosca BSP, por exemplo, pode ser rosqueada at\u00e9 o final de sua \u00e1rea desenvolvida durante sua fabrica\u00e7\u00e3o, mas em muitos casos \u00e9 necess\u00e1rio utilizar um veda-rosca ou anel de veda\u00e7\u00e3o.<\/p>\n

J\u00e1 a NPT funciona de acordo com o \u201cprinc\u00edpio do arredondamento\u201d. Conforme a conex\u00e3o vai sendo realizada, seu di\u00e2metro vai aumentando na mesma propor\u00e7\u00e3o at\u00e9 a veda\u00e7\u00e3o se completar e o sistema travar. Ela tamb\u00e9m \u00e9 mais robusta que a BSP e pode atender a requisitos mais elevados de press\u00e3o e confiabilidade<\/a>.<\/p>\n

Qual a rosca ideal para tubos de condu\u00e7\u00e3o?<\/h2>\n

Entre as mais variadas aplicabilidades, pode-se dizer que n\u00e3o existe uma rosca ideal, mas sim a que mais se adapta a cada projeto, e claro, a cada tipo de tubo e sua norma t\u00e9cnica.<\/p>\n

Independente de qual seja a mais indicada para o seu projeto, na Century Tubos voc\u00ea pode encontrar ambas. Entre em contato conosco<\/a> e solicite j\u00e1 um or\u00e7amento!<\/p>\n","protected":false},"excerpt":{"rendered":"

Quando pensamos em uma rede de tubos de condu\u00e7\u00e3o de flu\u00eddos, sejam eles l\u00edquidos ou gasosos, muitas vezes falamos de projetos grandiosos, com curvas, n\u00edveis…<\/p>\n","protected":false},"author":17,"featured_media":906,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[178,222],"tags":[],"class_list":["post-873","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-artigos","category-century-tubos-e-conexoes"],"acf":[],"yoast_head":"\nCentury Tubos | O que s\u00e3o roscas BSP e NPT e quais as suas diferen\u00e7as?<\/title>\n<meta name=\"description\" content=\"Para que a condu\u00e7\u00e3o de flu\u00eddos em tubos seja feita de forma correta, deve-se contar com as roscas BSP e NPT. 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