{"id":6940,"date":"2026-09-02T08:00:00","date_gmt":"2026-09-02T00:00:00","guid":{"rendered":"https:\/\/www.onerovalve.com\/?p=6940"},"modified":"2026-09-02T09:16:35","modified_gmt":"2026-09-02T01:16:35","slug":"duplex-stainless-steel-ball-valve-corrosive","status":"publish","type":"post","link":"https:\/\/www.onerovalve.com\/es\/blog\/application\/duplex-stainless-steel-ball-valve-corrosive\/","title":{"rendered":"V\u00e1lvula de bola d\u00faplex de acero inoxidable para servicio corrosivo"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Respuesta r\u00e1pida:<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El uso de un<strong> <\/strong><a href=\"https:\/\/www.onerovalve.com\/es\/product\/trunnion-ball-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">v\u00e1lvula de bola d\u00faplex de acero inoxidable<\/a> en aplicaciones corrosivas debido a su alta resistencia y excelente resistencia a la corrosi\u00f3n por picaduras de cloruro, agrietamiento por corrosi\u00f3n bajo tensi\u00f3n y medios de proceso agresivos, debido a su estructura de austenita y ferrita. Duplex 2205 es ideal para diversas aplicaciones en qu\u00edmica, <a href=\"https:\/\/www.onerovalve.com\/es\/blog\/application\/industrial-ball-valves-in-oil-gas-industry\/\" target=\"_blank\" rel=\"noreferrer noopener\">petr\u00f3leo y gas<\/a>, y en la industria del agua, pero el superd\u00faplex 2507 ofrece mayor resistencia en agua de mar y cloruros. ONERO ofrece opciones de v\u00e1lvulas de bola d\u00faplex para sistemas industriales exigentes.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/www.onerovalve.com\/wp-content\/uploads\/2026\/09\/image4-1200x675.webp\" alt=\"V\u00e1lvula de bola d\u00faplex de acero inoxidable para servicio corrosivo con brida F304 de 6 pulgadas y 300 lb.\" class=\"wp-image-6943\" srcset=\"https:\/\/www.onerovalve.com\/wp-content\/uploads\/2026\/09\/image4-1200x675.webp 1200w, https:\/\/www.onerovalve.com\/wp-content\/uploads\/2026\/09\/image4-500x281.webp 500w, https:\/\/www.onerovalve.com\/wp-content\/uploads\/2026\/09\/image4-300x169.webp 300w, https:\/\/www.onerovalve.com\/wp-content\/uploads\/2026\/09\/image4-768x432.webp 768w, https:\/\/www.onerovalve.com\/wp-content\/uploads\/2026\/09\/image4-1536x864.webp 1536w, https:\/\/www.onerovalve.com\/wp-content\/uploads\/2026\/09\/image4-18x10.webp 18w, https:\/\/www.onerovalve.com\/wp-content\/uploads\/2026\/09\/image4-133x75.webp 133w, https:\/\/www.onerovalve.com\/wp-content\/uploads\/2026\/09\/image4-480x270.webp 480w, https:\/\/www.onerovalve.com\/wp-content\/uploads\/2026\/09\/image4-800x450.webp 800w, https:\/\/www.onerovalve.com\/wp-content\/uploads\/2026\/09\/image4.webp 1672w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfQu\u00e9 diferencia al acero inoxidable d\u00faplex?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A diferencia del acero inoxidable convencional, el acero d\u00faplex posee estructuras de austenita y ferrita. Esta combinaci\u00f3n le confiere una alta resistencia y le proporciona resistencia a la corrosi\u00f3n por picaduras, grietas y corrosi\u00f3n bajo tensi\u00f3n por cloruros. Por ello, el acero d\u00faplex puede utilizarse donde los aceros convencionales no son adecuados.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sin embargo, la elecci\u00f3n de este material tambi\u00e9n depende de la temperatura, el contenido de cloruros, la presi\u00f3n y el fluido del proceso. El acero en s\u00ed mismo no garantiza su aplicabilidad.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfC\u00f3mo se comparan los a\u00f1os 2205 y 2507?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Los aceros 2205 y 2507 se clasifican como diferentes clases de acero d\u00faplex. La principal diferencia radica en la composici\u00f3n de la aleaci\u00f3n y la resistencia a la corrosi\u00f3n.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Propiedad<\/strong><\/td><td><strong>D\u00faplex 2205<\/strong><\/td><td><strong>Super Duplex 2507<\/strong><\/td><\/tr><tr><td>PREN t\u00edpico<\/td><td>Aproximadamente 35<\/td><td>Aproximadamente 40+<\/td><\/tr><tr><td>Cromo<\/td><td>Acerca de 22%<\/td><td>Acerca de 25%<\/td><\/tr><tr><td>Molibdeno<\/td><td>Aproximadamente 3.2%<\/td><td>Acerca de 4%<\/td><\/tr><tr><td>CPT t\u00edpico<\/td><td>Aproximadamente de 48 a 55 \u00b0C<\/td><td>Aproximadamente de 83 a 87 \u00b0C<\/td><\/tr><tr><td>Uso t\u00edpico<\/td><td>Servicio general contra la corrosi\u00f3n<\/td><td>Servicio severo de cloruro<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">PREN y resistencia a la corrosi\u00f3n por picaduras<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">El \u00edndice PRE indica la resistencia del acero a la corrosi\u00f3n por cloruros. Una f\u00f3rmula com\u00fan incluye el contenido de cromo, molibdeno y nitr\u00f3geno. Seg\u00fan Alleima, el \u00edndice PRE del acero 2205 es de aproximadamente 35. El acero Super Duplex 2507 suele alcanzar valores superiores a 40.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Temperatura cr\u00edtica de picadura<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La temperatura cr\u00edtica de picadura (TCP) indica la facilidad con la que se produce la picadura en determinadas condiciones. Algunos estudios proporcionan valores aproximados de TCP entre 48 y 55 \u00b0C para la aleaci\u00f3n 2205. Los valores de TCP para la aleaci\u00f3n 2507 se sit\u00faan aproximadamente entre 83 y 87 \u00b0C.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Control de la composici\u00f3n mediante calentamiento por calentamiento<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La composici\u00f3n qu\u00edmica es importante en el acero d\u00faplex. Con un espectr\u00f3metro, se puede medir la composici\u00f3n de la aleaci\u00f3n de cada colada antes de pasar a la siguiente etapa de fabricaci\u00f3n. Esto ayuda a garantizar que todos los componentes requeridos se mantengan dentro del rango de grado especificado.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfPor qu\u00e9 se utiliza el sistema d\u00faplex para el servicio de gas \u00e1cido?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El sulfuro de hidr\u00f3geno provoca agrietamiento en materiales susceptibles. La norma NACE MR0175, tambi\u00e9n conocida como ISO 15156, define los requisitos de los materiales en condiciones de producci\u00f3n de petr\u00f3leo y gas. Tanto el acero inoxidable 2205 como el 2507 cumplen con los requisitos de la norma NACE MR0175.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La aceptaci\u00f3n depende de factores como la dureza, la temperatura, el tratamiento t\u00e9rmico y la presi\u00f3n del sulfuro de hidr\u00f3geno. Esta es una de las razones por las que se requiere una especificaci\u00f3n para servicio corrosivo en v\u00e1lvulas de bola de acero inoxidable d\u00faplex.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfD\u00f3nde se utilizan habitualmente las v\u00e1lvulas de bola d\u00faplex?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Una aplicaci\u00f3n corrosiva en una v\u00e1lvula de bola de acero d\u00faplex puede implicar diversos fluidos y entornos exigentes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Las aplicaciones comunes incluyen:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.onerovalve.com\/es\/blog\/ball-valves-for-water-treatment-plants\/\" target=\"_blank\" rel=\"noreferrer noopener\">Sistemas de desalinizaci\u00f3n y agua de mar<\/a><\/li>\n\n\n\n<li>Equipos de desulfuraci\u00f3n de gases de combusti\u00f3n<\/li>\n\n\n\n<li>Servicio de petr\u00f3leo y gas \u00e1cido<\/li>\n\n\n\n<li>Procesamiento qu\u00edmico<\/li>\n\n\n\n<li>Sistemas de refrigeraci\u00f3n en alta mar<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.onerovalve.com\/es\/product\/ultra-low-temperature-ball-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">Superd\u00faplex 2507<\/a> Es especialmente adecuado para aplicaciones ricas en cloruros, como la refrigeraci\u00f3n y la desalinizaci\u00f3n con agua de mar.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfQu\u00e9 hace que la soldadura d\u00faplex sea m\u00e1s dif\u00edcil?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La soldadura d\u00faplex requiere un control t\u00e9rmico preciso. Un calor excesivo o insuficiente puede alterar el equilibrio entre la ferrita y la austenita. Por lo tanto, el procedimiento de soldadura debe controlar el aporte t\u00e9rmico y el intervalo entre pasadas.<a href=\"https:\/\/www.onerovalve.com\/es\/blog\/applicable-temperature-industrial-ball-valves\/\" target=\"_blank\" rel=\"noreferrer noopener\"> temperatura<\/a>, gas de protecci\u00f3n y condiciones de refrigeraci\u00f3n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En la producci\u00f3n de v\u00e1lvulas, estos controles son especialmente importantes en las zonas que contienen presi\u00f3n. La inspecci\u00f3n posterior a la soldadura permite verificar la calidad de la soldadura y el estado del material.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfQu\u00e9 especificaciones ofrece ONERO?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.onerovalve.com\/es\/manufacturing\/\" target=\"_blank\" rel=\"noreferrer noopener\">Fabricaci\u00f3n de ONERO<\/a> ofrece configuraciones de v\u00e1lvulas d\u00faplex para aplicaciones industriales exigentes, incluyendo dise\u00f1os con capacidad nominal de hasta <a href=\"https:\/\/www.onerovalve.com\/es\/product\/top-entry-ball-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">2500 libras<\/a>. Las especificaciones del proyecto pueden incluir el grado de d\u00faplex requerido, la clase de presi\u00f3n, el di\u00e1metro interior, el tipo de conexi\u00f3n, el material del asiento y los requisitos de prueba.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La selecci\u00f3n final debe coincidir con el fluido, la temperatura, la presi\u00f3n y la norma de materiales aplicable.<\/p>\n\n\n\n<style>\n  .single-card-wrapper {\n    display: flex;\n    justify-content: center;\n    padding: 40px 5vw;\n    background-color: transparent;\n    box-sizing: border-box;\n  }\n  .single-card-wrapper .hero-card {\n    width: 100%;\n    max-width: 480px;\n    border: 1px solid #e0e0e0;\n    border-radius: 8px;\n    overflow: hidden;\n    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);\n    transition: transform 0.2s ease;\n    background: #fff;\n    display: flex;\n    flex-direction: column;\n    box-sizing: border-box;\n  }\n  .single-card-wrapper .hero-card:hover {\n    transform: translateY(-4px);\n  }\n  .single-card-wrapper .hero-card img {\n    width: 100%;\n    height: auto;\n    display: block;\n  }\n  .single-card-wrapper .hero-card-content {\n    padding: 16px;\n    flex-grow: 1;\n    display: flex;\n    flex-direction: column;\n    justify-content: space-between;\n    box-sizing: border-box;\n  }\n  .single-card-wrapper .hero-card-content .card-title {\n    font-size: 18px;\n    color: #1569AE;\n    font-weight: bold;\n    margin: 0 0 10px 0;\n  }\n  .single-card-wrapper .hero-card-content p {\n    font-size: 14px;\n    color: #333;\n    margin: 0 0 12px 0;\n    line-height: 1.4;\n  }\n  .single-card-wrapper .hero-card-content a {\n    display: inline-block;\n    padding: 8px 16px;\n    background-color: #1569AE;\n    color: #fff;\n    font-size: 13px;\n    text-decoration: none;\n    border-radius: 4px;\n    text-align: center;\n    transition: background-color 0.2s ease;\n  }\n  .single-card-wrapper .hero-card-content a:hover {\n    background-color: #125a96;\n  }\n<\/style>\n\n<div class=\"single-card-wrapper\">\n  <div class=\"hero-card\">\n    <a href=\"https:\/\/www.onerovalve.com\/es\/product\/floating-ball-valve\/\" target=\"_blank\">\n      <img decoding=\"async\" src=\"https:\/\/www.onerovalve.com\/wp-content\/uploads\/2024\/08\/Web-1920-%E2%80%93-11.jpg\" alt=\"V\u00e1lvula de bola flotante\">\n    <\/a>\n    <div class=\"hero-card-content\">\n      <div class=\"card-title\">V\u00e1lvula de bola flotante<\/div>\n      <p>Dise\u00f1o flotante sencillo para un sellado herm\u00e9tico. Econ\u00f3mico, bajo par de apriete. 2\u2033\u201342\u2033, Clase 150-2500LB.<\/p>\n      <a href=\"https:\/\/www.onerovalve.com\/es\/product\/floating-ball-valve\/\" target=\"_blank\">Ver producto<\/a>\n    <\/div>\n  <\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Preguntas frecuentes sobre la v\u00e1lvula de bola d\u00faplex de acero inoxidable<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u00bfPara qu\u00e9 se utiliza una v\u00e1lvula de bola d\u00faplex 2205?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Una v\u00e1lvula de bola d\u00faplex 2205 se usa com\u00fanmente para agua con cloruros, procesamiento qu\u00edmico, petr\u00f3leo y gas, y otros. <a href=\"https:\/\/www.onerovalve.com\/es\/blog\/ball-valve-material-for-corrosive-fluids\/\" target=\"_blank\" rel=\"noreferrer noopener\">servicios corrosivos<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. D\u00faplex 2205 vs 316: \u00bfcu\u00e1l es mejor para el servicio con cloruros?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">En general, el acero inoxidable 2205 ofrece mayor resistencia al agrietamiento por corrosi\u00f3n bajo tensi\u00f3n por cloruros y mayor resistencia a la corrosi\u00f3n por picaduras que el acero inoxidable 316L.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u00bfEl acero inoxidable d\u00faplex cumple con la norma NACE MR0175?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ciertos grados de acero d\u00faplex pueden cumplir con los requisitos de la norma NACE MR0175 bajo condiciones de servicio definidas. Se debe verificar el estado completo del material.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u00bfCu\u00e1l es el PREN de una v\u00e1lvula de bola superd\u00faplex 2507?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">El acero Super Duplex 2507 suele tener un \u00edndice PREN superior a 40. Su mayor contenido en cromo, molibdeno y nitr\u00f3geno le confiere una mayor resistencia a la corrosi\u00f3n por picaduras.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u00bfPuede una v\u00e1lvula de bola de acero d\u00faplex manejar agua de mar?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u00ed, algunos grados de acero d\u00faplex se utilizan en aplicaciones con agua de mar. El acero Super Duplex 2507 se suele especificar para sistemas exigentes de agua de mar y desalinizaci\u00f3n.<\/p>\n\n\n\n<style>\n    \/* \u6837\u5f0f\u9694\u79bb\uff1a\u9632\u6b62\u5f71\u54cd\u6574\u7ad9\u5176\u4ed6\u5143\u7d20 *\/\n    .valve-nav-banner {\n        position: relative;\n        width: 100%;\n        max-width: 900px;\n        min-height: 280px;\n        margin: 40px auto;\n        border-radius: 12px;\n        overflow: hidden;\n        display: flex;\n        flex-direction: column;\n        align-items: center;\n        justify-content: center;\n        text-align: center;\n        padding: 40px 20px;\n        box-sizing: border-box;\n        font-family: 'Poppins', Arial, sans-serif;\n        background-image: url('https:\/\/onerovalve.b-cdn.net\/wp-content\/uploads\/2024\/08\/banner-2.jpg');\n        background-size: cover;\n        background-position: center;\n    }\n\n    \/* \u9ed1\u8272\u534a\u900f\u660e\u906e\u7f69\u5c42\uff0c\u786e\u4fdd\u767d\u8272\u6587\u5b57\u5728\u590d\u6742\u80cc\u666f\u56fe\u4e0a\u4f9d\u7136\u6e05\u6670\u53ef\u8bfb *\/\n    .valve-nav-banner::before {\n        content: '';\n        position: absolute;\n        top: 0;\n        left: 0;\n        width: 100%;\n        height: 100%;\n        background: rgba(0, 0, 0, 0.55); \n        z-index: 1;\n    }\n\n    .valve-nav-content {\n        position: relative;\n        z-index: 2;\n        max-width: 750px;\n    }\n\n    \/* \u52a0\u7c97\u7684\u6807\u9898\u6837\u5f0f *\/\n    .valve-nav-title {\n        color: #ffffff;\n        font-size: 26px;\n        line-height: 1.4;\n        margin: 0 0 25px 0;\n    }\n\n    \/* CTA \u6309\u94ae\u6837\u5f0f\uff1a\u5df2\u9002\u914d Onero Valve \u54c1\u724c\u4e13\u5c5e\u84dd #1569AE *\/\n    .valve-cta-btn {\n        display: inline-block;\n        background-color: #1569AE;\n        color: #ffffff !important;\n        font-size: 16px;\n        font-weight: 600;\n        text-decoration: none !important;\n        padding: 14px 36px;\n        border-radius: 6px;\n        transition: all 0.3s ease;\n        border: 2px solid #1569AE;\n    }\n\n    \/* \u4ea4\u4e92\u8272\uff1a\u60ac\u505c\u65f6\u80cc\u666f\u53d8\u767d\uff0c\u6587\u5b57\u53d8\u4e3b\u9898\u8272 *\/\n    .valve-cta-btn:hover {\n        background-color: #ffffff;\n        color: #1569AE !important;\n        border-color: #ffffff;\n    }\n\n    @media (max-width: 600px) {\n        .valve-nav-title {\n            font-size: 20px;\n        }\n        .valve-nav-banner {\n            min-height: 220px;\n        }\n    }\n<\/style>\n\n<div class=\"valve-nav-banner\">\n    <div class=\"valve-nav-content\">\n        <p class=\"valve-nav-title\"><strong>V\u00e1lvulas industriales de alto rendimiento. Descubra nuestra gama completa de productos.<\/strong><\/p>\n        <a href=\"https:\/\/www.onerovalve.com\/es\/products\/\" target=\"_blank\" class=\"valve-cta-btn\">Ver todos los productos<\/a>\n    <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Quick Answer: The use of a duplex stainless ball valve in corrosive applications is because of its high strength and excellent resistance to chloride pitting, stress<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":6943,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[61],"tags":[],"class_list":["post-6940","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-application"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Duplex Stainless Ball Valve 2205 vs 2507 Guide | ONERO<\/title>\n<meta name=\"description\" content=\"Compare duplex 2205 and super duplex 2507 ball valves for corrosive service. Learn about PREN, CPT, NACE MR0175 compliance, and key application areas.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.onerovalve.com\/es\/blog\/application\/duplex-stainless-steel-ball-valve-corrosive\/\" \/>\n<meta property=\"og:locale\" content=\"es_MX\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Duplex Stainless Ball Valve 2205 vs 2507 Guide | ONERO\" \/>\n<meta property=\"og:description\" content=\"Compare duplex 2205 and super duplex 2507 ball valves for corrosive service. 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