{"id":4462,"date":"2026-03-25T03:26:15","date_gmt":"2026-03-25T03:26:15","guid":{"rendered":"https:\/\/hydrathpower.com\/?p=4462"},"modified":"2026-03-25T03:26:15","modified_gmt":"2026-03-25T03:26:15","slug":"identificacion-de-roscas-hidraulicas-bsp-vs-npt-vs-metrica","status":"publish","type":"post","link":"https:\/\/hydrathpower.com\/es\/hydraulic-threads-bsp-vs-npt-vs-metric-identification\/","title":{"rendered":"Roscas hidr\u00e1ulicas: Identificaci\u00f3n BSP vs NPT vs M\u00e9trica"},"content":{"rendered":"<article>\n<h2><span style=\"font-size: 1.7em;\">Definici\u00f3n<\/span><\/h2>\n<section id=\"definition-en\">Las roscas son ranuras helicoidales que se utilizan para ensamblar y sellar componentes. En hidr\u00e1ulica, las roscas aparecen en racores y puertos; proporcionan sujeci\u00f3n mec\u00e1nica y, con el perfil o elemento de sellado adecuado, consiguen conexiones estancas bajo presi\u00f3n.<\/section>\n<h2>C\u00f3mo identificar<\/h2>\n<ol>\n<li>Medici\u00f3n del di\u00e1metro: utilice calibres para medir el di\u00e1metro mayor\/menor (OD\/ID), mantenga las unidades coherentes (mm o pulgadas).<\/li>\n<li>Determinar el paso: utilizar un calibre de paso de rosca; distinguir TPI (imperial) frente a mm (m\u00e9trico).<\/li>\n<li>Compruebe la direcci\u00f3n: derecha frente a izquierda; considere las aplicaciones de carga inversa.<\/li>\n<li>Identifique la conicidad frente a la paralelismo: mida el di\u00e1metro exterior en varias crestas; un di\u00e1metro exterior cambiante indica conicidad; un di\u00e1metro exterior constante indica paralelismo.<\/li>\n<li>Mapa de normas y sellado: <a href=\"https:\/\/cdn.standards.iteh.ai\/samples\/33777\/842b7c5409454ceba69c7dad9c308be1\/ISO-228-1-2000.pdf\">BSPP (ISO 228-1)<\/a> paralelo utiliza arandelas\/juntas pegadas; BSPT (ISO 7-1)\/NPT (ASME B1.20.1) c\u00f3nico necesita sellador; M\u00e9trico (ISO 261\/724\/965) y SAE O-ring ports (ISO 11926\/SAE J1926) utilizan juntas t\u00f3ricas.<br \/>\n<img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/measure-thread-pitch-_-TPI-vs-mm-300x202.jpg\" class=\"alignnone wp-image-4465 lazyload\" alt=\"medir el paso de rosca _ TPI vs mm\" width=\"175\" height=\"118\"><noscript><img decoding=\"async\" class=\"alignnone wp-image-4465\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/measure-thread-pitch-_-TPI-vs-mm-300x202.jpg\" alt=\"medir el paso de rosca _ TPI vs mm\" width=\"175\" height=\"118\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/measure-thread-pitch-_-TPI-vs-mm-300x202.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/measure-thread-pitch-_-TPI-vs-mm-768x518.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/measure-thread-pitch-_-TPI-vs-mm-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/measure-thread-pitch-_-TPI-vs-mm.jpg 869w\" sizes=\"(max-width: 175px) 100vw, 175px\" \/><\/noscript> <img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/left\u2011hand-threads-usage-300x202.jpg\" class=\"alignnone wp-image-4467 lazyload\" alt=\"uso de la rosca izquierda\" width=\"195\" height=\"131\"><noscript><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4467\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/left\u2011hand-threads-usage-300x202.jpg\" alt=\"uso de la rosca izquierda\" width=\"195\" height=\"131\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/left\u2011hand-threads-usage-300x202.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/left\u2011hand-threads-usage-768x518.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/left\u2011hand-threads-usage-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/left\u2011hand-threads-usage.jpg 869w\" sizes=\"(max-width: 195px) 100vw, 195px\" \/><\/noscript> <img loading=\"lazy\" decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/identify-taper-vs-parallel-threads-300x202.jpg\" class=\"alignnone wp-image-4466 lazyload\" alt=\"identificar roscas c\u00f3nicas frente a roscas paralelas\" width=\"154\" height=\"104\"><noscript><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4466\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/identify-taper-vs-parallel-threads-300x202.jpg\" alt=\"identificar roscas c\u00f3nicas frente a roscas paralelas\" width=\"154\" height=\"104\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/identify-taper-vs-parallel-threads-300x202.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/identify-taper-vs-parallel-threads-768x518.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/identify-taper-vs-parallel-threads-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/identify-taper-vs-parallel-threads.jpg 869w\" sizes=\"(max-width: 154px) 100vw, 154px\" \/><\/noscript><\/li>\n<\/ol>\n<section id=\"how-to-identify-cn\"><\/section>\n<section id=\"profiles\">\n<h2>Perfiles<\/h2>\n<ul>\n<li>Perfil en V: Buena resistencia y versatilidad; muy utilizado en fijaciones y accesorios hidr\u00e1ulicos en general.<\/li>\n<li>Cuadrado: Baja fricci\u00f3n, alta capacidad de carga; se encuentra com\u00fanmente en transmisiones\/tornillos de cabeza.<\/li>\n<li>Acme: M\u00e1s f\u00e1cil de fabricar; compromiso entre capacidad de carga y fricci\u00f3n.<\/li>\n<li>Contrafuerte: Adecuado para aplicaciones con gran fuerza axial en una direcci\u00f3n.<\/li>\n<li>Rosca c\u00f3nica: Consigue una estanqueidad resistente a la presi\u00f3n (<a href=\"https:\/\/www.ralstoninst.com\/news\/story\/the-difference-between-npt-bspp-and-bspt-seals\">BSPT\/NPT<\/a>) a trav\u00e9s del cono y el sellador.<img loading=\"lazy\" decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/types-of-threads-300x202.jpg\" class=\"alignnone size-medium wp-image-4464 lazyload\" style=\"font-style: inherit; font-weight: inherit;\" alt=\"tipos de rosca\" width=\"300\" height=\"202\"><noscript><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-4464\" style=\"font-style: inherit; font-weight: inherit;\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/types-of-threads-300x202.jpg\" alt=\"tipos de rosca\" width=\"300\" height=\"202\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/types-of-threads-300x202.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/types-of-threads-768x518.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/types-of-threads-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/types-of-threads.jpg 869w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/noscript><\/li>\n<\/ul>\n<\/section>\n<section id=\"codes-pairing-en\">\n<h2>C\u00f3digos y emparejamiento<\/h2>\n<ul>\n<li>BSP (55\u00b0): BSPP\/G roscas paralelas no estancas; serie R roscas estancas<\/li>\n<li>Rp: hembra paralela; Rc: hembra c\u00f3nica (1:16); R1: macho c\u00f3nico para Rp; R2: macho c\u00f3nico para Rc.<\/li>\n<li>Emparejamiento: Rp+R1 para estanqueidad general; Rc+R2 para mayor presi\u00f3n; utilizar sellador, evitar pegar en exceso.<\/li>\n<li>ANSI (60\u00b0): NPT cierre c\u00f3nico (1:16); NPTF cierre en seco; NPS recto (NPSM mec\u00e1nico, NPSF combustible, NPSH manguera) requiere juntas auxiliares.<\/li>\n<li>M\u00e9trico (60\u00b0): Las roscas paralelas a m\u00e1quina M requieren arandelas\/anillos; variante c\u00f3nica aeroespacial MJ<\/li>\n<li>Cartograf\u00eda JIS\/DIN: JIS PT\u2248Rc; JIS PF\u2248G; DIN 2999 con la serie R; DIN 3852 para racores m\u00e9tricos tipo mordaza.<\/li>\n<li>Puertos y caras: SAE J514 ORB, JIC 37\u00b0, SAE 45\u00b0, junta t\u00f3rica plana ORFS<\/li>\n<\/ul>\n<\/section>\n<section id=\"codes-pairing-cn\"><\/section>\n<section id=\"comparison-en\">\n<h2>BSPP vs BSPT vs NPT vs M\u00e9trico<\/h2>\n<table>\n<thead>\n<tr>\n<th>Caracter\u00edstica<\/th>\n<th>BSPP (ISO 228-1)<\/th>\n<th>BSPT (ISO 7-1)<\/th>\n<th><a href=\"https:\/\/www.armechalloys.com\/pdf\/ansi-b1-20-1.pdf\">NPT (ASME B1.20.1)<\/a><\/th>\n<th>Sistema m\u00e9trico (ISO 261\/724\/965)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Forma del hilo<\/td>\n<td>Paralelo (G)<\/td>\n<td>C\u00f3nico (R)<\/td>\n<td>C\u00f3nico<\/td>\n<td>En paralelo<\/td>\n<\/tr>\n<tr>\n<td>M\u00e9todo de sellado<\/td>\n<td>Arandela\/Sello adherido\/Anillo frontal<\/td>\n<td>Sellador de roscas<\/td>\n<td>Sellador de roscas<\/td>\n<td>Puerto arandela\/anillo<\/td>\n<\/tr>\n<tr>\n<td>Uso t\u00edpico<\/td>\n<td>Conexiones hidr\u00e1ulicas<\/td>\n<td>Conexiones de tuber\u00edas<\/td>\n<td>Conexiones de tuber\u00edas<\/td>\n<td>Racores y roscas para m\u00e1quinas<\/td>\n<\/tr>\n<tr>\n<td>Precauci\u00f3n al mezclar<\/td>\n<td>No mezclar con NPT<\/td>\n<td>No mezclar con NPT\/BSPP<\/td>\n<td>No mezclar con BSP<\/td>\n<td>Adaptaci\u00f3n y tolerancia<\/td>\n<\/tr>\n<tr>\n<td>Identificaci\u00f3n<\/td>\n<td>OD constante a lo largo de la longitud<\/td>\n<td>Cambios de OD (conicidad)<\/td>\n<td>Cambios de OD (conicidad)<\/td>\n<td>OD constante; paso m\u00e9trico<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n<section id=\"comparison-cn\"><\/section>\n<section id=\"pros-cons-en\">\n<h2>Ventajas e inconvenientes<\/h2>\n<ul>\n<li>Ventajas: pasos de identificaci\u00f3n claros, reducci\u00f3n de las fugas gracias a una elecci\u00f3n adecuada del sellado, conversiones entre normas m\u00e1s seguras.<\/li>\n<li>Inconvenientes: los errores de medici\u00f3n provocan desajustes; la mezcla de patrones provoca fugas o da\u00f1os.<\/li>\n<\/ul>\n<\/section>\n<section id=\"pros-cons-cn\"><\/section>\n<section id=\"faq\">\n<h2>PREGUNTAS FRECUENTES<\/h2>\n<details>\n<summary>\u00bfC\u00f3mo distinguir BSP de NPT?<\/summary>\n<p>BSP utiliza un perfil de 55\u00b0; NPT utiliza 60\u00b0. BSPP es paralelo; BSPT\/NPT son c\u00f3nicos. Medir el OD a lo largo de varias crestas y verificar el paso; no mezclar.<\/p>\n<\/details>\n<details>\n<summary>\u00bfSellan las roscas paralelas sin sellador?<\/summary>\n<p>S\u00ed, con junta\/arandela adherida o cara de junta t\u00f3rica (por ejemplo, puertos BSPP). El sellado se produce en la cara, no en las roscas.<\/p>\n<\/details>\n<details>\n<summary>Paso m\u00e9trico frente a paso imperial: \u00bfc\u00f3mo medir?<\/summary>\n<p>Utilice un calibre de paso; el sistema m\u00e9trico indica mm por rosca; el imperial indica TPI. Convierta de forma coherente y verifique con calibradores y tablas.<\/p>\n<\/details>\n<details>\n<summary>\u00bfCu\u00e1ndo utilizar roscas a la izquierda?<\/summary>\n<p>Utilizar cuando las roscas derechas puedan aflojarse bajo rotaci\u00f3n o carga inversa.<\/p>\n<\/details>\n<\/section>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>Definition Threads are helical grooves used to assemble and seal components. In hydraulics, threads appear on fittings and ports; they [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4463,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"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":"","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 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-4)","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-4)","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-4)","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-4462","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Hydraulic Threads: BSP vs NPT vs Metric Identification - Hydrath Power<\/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:\/\/hydrathpower.com\/es\/identificacion-de-roscas-hidraulicas-bsp-vs-npt-vs-metrica\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hydraulic Threads: BSP vs NPT vs Metric Identification - Hydrath Power\" \/>\n<meta property=\"og:description\" content=\"Definition Threads are helical grooves used to assemble and seal components. 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