{"id":5438,"date":"2025-08-20T17:33:35","date_gmt":"2025-08-20T09:33:35","guid":{"rendered":"https:\/\/www.airbag.cc\/?p=5438"},"modified":"2025-10-14T15:47:22","modified_gmt":"2025-10-14T07:47:22","slug":"yokohama-fenders-50-kpa-vs-80-kpa","status":"publish","type":"post","link":"https:\/\/www.airbag.cc\/es\/yokohama-fenders-50-kpa-vs-80-kpa\/","title":{"rendered":"Defensas Yokohama: 50 kPa vs 80 kPa"},"content":{"rendered":"<p>Si alguna vez ha buscado <strong>Guardabarros Yokohama<\/strong>probablemente haya notado dos clasificaciones comunes: <strong>50 kPa<\/strong> y <strong>80 kPa<\/strong>. A primera vista, parecen iguales. Ambas son defensas neum\u00e1ticas, ambas est\u00e1n dise\u00f1adas para proteger a los buques durante el atraque o las transferencias de buque a buque (STS), y ambas cumplen la normativa <strong><a href=\"https:\/\/www.iso.org\/standard\/59873.html\">ISO 17357 1:2014<\/a><\/strong> y <strong><a href=\"https:\/\/www.iso.org\/standard\/59874.html\">ISO 17357 2:2014<\/a><\/strong> normas.<\/p>\n\n\n\n<p>\u00bfPor qu\u00e9 hay dos clases de presi\u00f3n? \u00bfY cu\u00e1l es la m\u00e1s adecuada para su proyecto? Vamos a explicarlo de forma sencilla.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"670\" src=\"https:\/\/www.airbag.cc\/wp-content\/uploads\/2025\/06\/Nanhai-pneumatic-fender-in-use-114-\u62f7\u8d1d.webp\" alt=\"Defensas neum\u00e1ticas NANHAI en uso\" class=\"wp-image-4735\" srcset=\"https:\/\/www.airbag.cc\/wp-content\/uploads\/2025\/06\/Nanhai-pneumatic-fender-in-use-114-\u62f7\u8d1d.webp 1000w, https:\/\/www.airbag.cc\/wp-content\/uploads\/2025\/06\/Nanhai-pneumatic-fender-in-use-114-\u62f7\u8d1d-300x201.webp 300w, https:\/\/www.airbag.cc\/wp-content\/uploads\/2025\/06\/Nanhai-pneumatic-fender-in-use-114-\u62f7\u8d1d-768x515.webp 768w, https:\/\/www.airbag.cc\/wp-content\/uploads\/2025\/06\/Nanhai-pneumatic-fender-in-use-114-\u62f7\u8d1d-112x75.webp 112w, https:\/\/www.airbag.cc\/wp-content\/uploads\/2025\/06\/Nanhai-pneumatic-fender-in-use-114-\u62f7\u8d1d-480x322.webp 480w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1000px) 100vw, 1000px\" \/><\/figure>\n<\/div>\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Cuadro comparativo r\u00e1pido<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Par\u00e1metro<\/strong><\/th><th><strong>50 kPa yokohama Guardabarros<\/strong>s<\/th><th><strong>80 kPa yokohama Guardabarros<\/strong><\/th><th><strong>Qu\u00e9 significa<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>Absorci\u00f3n de energ\u00eda<\/strong><\/td><td>Baja<\/td><td>M\u00e1s alto<\/td><td>80 kPa maneja m\u00e1s energ\u00eda por tama\u00f1o<\/td><\/tr><tr><td><strong>Fuerza de reacci\u00f3n<\/strong><\/td><td>Baja<\/td><td>M\u00e1s alto<\/td><td>Comprobar los l\u00edmites de presi\u00f3n del casco<\/td><\/tr><tr><td><strong>Tama\u00f1o para el mismo EA<\/strong><\/td><td>M\u00e1s grande<\/td><td>M\u00e1s peque\u00f1o<\/td><td>80 kPa puede reducir el di\u00e1metro del guardabarros<\/td><\/tr><tr><td><strong>Peso y manejo<\/strong><\/td><td>M\u00e1s pesado (si se aumenta de tama\u00f1o)<\/td><td>M\u00e1s ligero (si se reduce)<\/td><td>La log\u00edstica puede cambiar en funci\u00f3n de la elecci\u00f3n<\/td><\/tr><tr><td><strong>Coste<\/strong><\/td><td>Normalmente inferior<\/td><td>M\u00e1s por adelantado<\/td><td>Pero el menor tama\u00f1o puede compensar el coste<\/td><\/tr><tr><td><strong>Mantenimiento<\/strong><\/td><td>M\u00e1s f\u00e1cil<\/td><td>Ligeramente m\u00e1s estricto<\/td><td>80 kPa necesita controles de presi\u00f3n m\u00e1s frecuentes<\/td><\/tr><tr><td><strong>Mejores casos de uso<\/strong><\/td><td>Amarres protegidos, operaciones STQ<\/td><td>Transbordos STS, GNL, VLCC<\/td><td>Adecuar la clasificaci\u00f3n al entorno<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfQu\u00e9 significa \"kPa\"?<\/h2>\n\n\n\n<p>El <strong>kPa nominal<\/strong> le indica la <strong>presi\u00f3n interna inicial<\/strong> de la <strong><a href=\"https:\/\/www.airbag.cc\/es\/pneumatic-fender\/\">guardabarros neum\u00e1tico<\/a><\/strong>. A <strong>Un guardabarros Yokohama de 50 kPa empieza con 50 kilopascales en el interior, mientras que un guardabarros Yokohama de 80 kPa<\/strong> empieza en 80.<\/p>\n\n\n\n<p>Una presi\u00f3n m\u00e1s alta hace que el guardabarros <strong>absorci\u00f3n de energ\u00eda (EA)<\/strong> y <strong>estabilidad de forma<\/strong>. Sin embargo, tambi\u00e9n conduce a una <strong>mayor fuerza de reacci\u00f3n<\/strong> tanto en el barco como en la estructura del puesto de atraque. Por eso, su elecci\u00f3n debe coincidir siempre con su <strong>energ\u00eda de atraque<\/strong> c\u00e1lculos y l\u00edmites de presi\u00f3n del casco.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Diferencias de rendimiento que notar\u00e1<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. Absorci\u00f3n de energ\u00eda (EA)<\/h3>\n\n\n\n<p>Esta es la mayor diferencia. Con el mismo tama\u00f1o, un <strong>80 kPa guardabarros<\/strong> puede absorber <strong>m\u00e1s energ\u00eda<\/strong> que un modelo de 50 kPa. Eso significa que si tus barcos son pesados o tus velocidades de aproximaci\u00f3n son altas, 80 kPa es m\u00e1s seguro.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Fuerza de reacci\u00f3n<\/h3>\n\n\n\n<p>Una mayor presi\u00f3n interna tambi\u00e9n significa <strong>m\u00e1s resistencia<\/strong>. Si la estructura del muelle o el revestimiento del casco tienen l\u00edmites de presi\u00f3n estrictos, una defensa de 50 kPa puede ser m\u00e1s segura.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Tama\u00f1o del guardabarros<\/h3>\n\n\n\n<p>Esta es la parte interesante: para el <strong>mismo requisito EA<\/strong>a menudo puede <strong>reducir<\/strong> si elige 80 kPa. Las defensas m\u00e1s peque\u00f1as son m\u00e1s f\u00e1ciles de manejar y a veces m\u00e1s baratas de enviar.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Coste, log\u00edstica y mantenimiento<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Coste inicial<\/strong> \u2192 Los modelos de 80 kPa suelen <strong>m\u00e1s caro<\/strong>pero puede que necesites un <strong>menor tama\u00f1o<\/strong>que puede compensar el coste.<\/li>\n\n\n\n<li><strong>Manejo de<\/strong> \u2192 Reducir un guardabarros yokohama de 80 kPa lo hace m\u00e1s ligero y f\u00e1cil de mover, pero por lo dem\u00e1s, hay poca diferencia en la instalaci\u00f3n.<\/li>\n\n\n\n<li><strong>Mantenimiento<\/strong> \u2192 Ambos necesitan controles de presi\u00f3n, pero <strong>80 kPa guardabarros yokohama<\/strong> son menos indulgentes si te los saltas. Los cheques mensuales son una buena regla general.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Cu\u00e1ndo elegir 50 kPa frente a 80 kPa<\/h2>\n\n\n\n<p><strong>Elija 50 kPa si:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Est\u00e1s manejando <strong>buques de carga general<\/strong>graneleros o portacontenedores<\/li>\n\n\n\n<li>El amarre est\u00e1 en un <strong>puerto protegido<\/strong> con condiciones mar\u00edtimas suaves<\/li>\n\n\n\n<li><strong>El presupuesto es una preocupaci\u00f3n<\/strong><\/li>\n\n\n\n<li>Quieres <strong>fuerza de reacci\u00f3n inferior<\/strong> en estructuras de atraque<\/li>\n<\/ul>\n\n\n\n<p><strong>Elija 80 kPa si:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Est\u00e1s haciendo <strong>Transferencias STS<\/strong> con <strong>Grandes petroleros<\/strong>, buques de transporte de GNL u operaciones en alta mar<\/li>\n\n\n\n<li>La litera da a <strong>fuertes olas o corrientes<\/strong><\/li>\n\n\n\n<li>El espacio es reducido y quiere un <strong>guardabarros m\u00e1s peque\u00f1o con el mismo EA<\/strong><\/li>\n\n\n\n<li>Necesita mejores <strong>estabilidad de forma<\/strong> bajo cargas pesadas<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">La seguridad y las normas son importantes<\/h2>\n\n\n\n<p>No todas las defensas de goma neum\u00e1ticas son iguales. P\u00eddalos siempre:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Certificaci\u00f3n ISO 17357-1:2014<\/strong><\/li>\n\n\n\n<li><strong>Curvas de rendimiento<\/strong> para valores nominales de 50 kPa y 80 kPa<\/li>\n\n\n\n<li><strong>Informes de inspecci\u00f3n de terceros<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Y recuerda: <strong>no infle en exceso un guardabarros de 50 kPa a 80 kPa<\/strong>. El dise\u00f1o de la capa, el refuerzo y los factores de seguridad son diferentes.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Proceso de selecci\u00f3n de guardabarros paso a paso<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Comprenda su escenario<\/strong> \u2192 STS o STQ? Tipos de buque?<\/li>\n\n\n\n<li><strong>Calcular la energ\u00eda de atraque<\/strong> \u2192 En funci\u00f3n del tama\u00f1o del barco, la velocidad y la marea.<\/li>\n\n\n\n<li><strong>Compruebe los l\u00edmites del casco y del amarre<\/strong> \u2192 Empareja cuidadosamente EA y fuerza de reacci\u00f3n.<\/li>\n\n\n\n<li><strong>Elija la clase de presi\u00f3n<\/strong> \u2192 Decide entre 50 kPa y 80 kPa en funci\u00f3n de las condiciones.<\/li>\n\n\n\n<li><strong>Elija el tama\u00f1o del guardabarros<\/strong> \u2192 Utilice tablas de rendimiento certificadas.<\/li>\n\n\n\n<li><strong>Seleccionar accesorios<\/strong> \u2192 Redes, cadenas, eslabones giratorios: aseg\u00farate de que las clasificaciones coincidan.<\/li>\n\n\n\n<li><strong>Mantenimiento del plan<\/strong> \u2192 Establezca un calendario de inspecciones peri\u00f3dicas.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Errores comunes que hay que evitar<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Inflar un guardabarros de 50 kPa a 80 kPa (inseguro).<\/li>\n\n\n\n<li>Ignorar la fuerza de reacci\u00f3n al aumentar el tama\u00f1o o cambiar de clase de presi\u00f3n.<\/li>\n\n\n\n<li>Utilizando <strong>defensas no certificadas<\/strong> sin informes de pruebas.<\/li>\n\n\n\n<li>Omitir las comprobaciones peri\u00f3dicas de la presi\u00f3n, especialmente en las unidades de 80 kPa.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Ejemplos reales<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Transferencia de GNL STS:<\/strong> Se prefieren las defensas de 80 kPa debido a <strong>alta energ\u00eda de atraque<\/strong> y <strong>estrechos l\u00edmites de separaci\u00f3n<\/strong>.<\/li>\n\n\n\n<li><strong>Atraque de contenedores en un puerto protegido:<\/strong> 50 kPa suele ser m\u00e1s que suficiente.<\/li>\n\n\n\n<li><strong>Atraque expuesto en alta mar:<\/strong> 80 kPa proporciona mejores <strong>estabilidad de forma<\/strong> durante las marejadas.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Preguntas frecuentes<\/h2>\n\n\n\n<p><strong>Q1. \u00bfPuedo utilizar un guardabarros de 50 kPa a 80 kPa?<\/strong><br>No. Est\u00e1n dise\u00f1ados de forma diferente y es inseguro.<\/p>\n\n\n\n<p><strong>Q2. \u00bfSon siempre mejores los resultados de 80 kPa?<\/strong><br>No siempre. Es \"mejor\" para <strong>alta energ\u00eda<\/strong> escenarios, pero viene con una mayor fuerza de reacci\u00f3n y un mantenimiento m\u00e1s estricto.<\/p>\n\n\n\n<p><strong>Q3. \u00bfReducir\u00e1n 80 kPa el tama\u00f1o de mi guardabarros?<\/strong><br>S\u00ed, a menudo se puede elegir un <strong>di\u00e1metro menor<\/strong> para alcanzar la misma absorci\u00f3n de energ\u00eda.<\/p>\n\n\n\n<p><strong>Q4. \u00bfCon qu\u00e9 frecuencia debo comprobar la presi\u00f3n?<\/strong><br>Por lo menos <strong>una vez al mes<\/strong> o antes de operaciones STS importantes.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Reflexiones finales<\/h2>\n\n\n\n<p>Cuando se trata de <strong><a href=\"https:\/\/www.airbag.cc\/es\/pneumatic-fender\/\">Guardabarros Yokohama<\/a><\/strong>no existe una opci\u00f3n universal \"mejor\" entre <strong>50 kPa<\/strong> y <strong>80 kPa<\/strong>. La elecci\u00f3n correcta depende de su <strong>tama\u00f1o del barco<\/strong>, <strong>energ\u00eda de atraque<\/strong>, <strong>medio ambiente<\/strong>y <strong>presupuesto<\/strong>.<\/p>\n\n\n\n<p>Si no est\u00e1 seguro, pregunte siempre a su proveedor de guardabarros por <strong>Curvas de rendimiento con certificaci\u00f3n ISO<\/strong> y d\u00e9jese guiar por los n\u00fameros. Una elecci\u00f3n equivocada puede suponer mayores costes o, lo que es peor, da\u00f1os estructurales.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-vivid-red-background-color has-background wp-element-button\" href=\"https:\/\/www.airbag.cc\/es\/contact-and-support\/\">consulta gratuita<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>If you\u2019ve ever searched for Yokohama fenders, you\u2019ve probably noticed two common ratings: 50 kPa and 80 kPa. At first glance, they look the same. Both<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5438","post","type-post","status-publish","format-standard","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.7.1 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Yokohama Fenders: 50 kPa vs 80 kPa - pneumatic fenders_yokohama fender_vessel fender-NanHai Groups Marine<\/title>\n<meta name=\"description\" content=\"Yokohama fenders 50 kPa vs 80 kPa: key differences in energy absorption, reaction force, size, cost, and best uses.\" \/>\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.airbag.cc\/es\/yokohama-fenders-50-kpa-vs-80-kpa\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Yokohama Fenders: 50 kPa vs 80 kPa\" \/>\n<meta property=\"og:description\" content=\"Yokohama fenders 50 kPa vs 80 kPa: key differences in energy absorption, reaction force, size, cost, and best uses.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.airbag.cc\/es\/yokohama-fenders-50-kpa-vs-80-kpa\/\" \/>\n<meta property=\"og:site_name\" content=\"pneumatic fenders_yokohama fender_vessel fender-NanHai Groups Marine\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/nanhaimarine\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-20T09:33:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-14T07:47:22+00:00\" \/>\n<meta name=\"author\" content=\"a2\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"a2\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.airbag.cc\\\/yokohama-fenders-50-kpa-vs-80-kpa\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.airbag.cc\\\/yokohama-fenders-50-kpa-vs-80-kpa\\\/\"},\"author\":{\"name\":\"a2\",\"@id\":\"https:\\\/\\\/www.airbag.cc\\\/#\\\/schema\\\/person\\\/e807cba4e19b01b05fe0ace0a5ee9219\"},\"headline\":\"Yokohama Fenders: 50 kPa vs 80 kPa\",\"datePublished\":\"2025-08-20T09:33:35+00:00\",\"dateModified\":\"2025-10-14T07:47:22+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.airbag.cc\\\/yokohama-fenders-50-kpa-vs-80-kpa\\\/\"},\"wordCount\":836,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.airbag.cc\\\/#organization\"},\"articleSection\":[\"News\"],\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.airbag.cc\\\/yokohama-fenders-50-kpa-vs-80-kpa\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.airbag.cc\\\/yokohama-fenders-50-kpa-vs-80-kpa\\\/\",\"url\":\"https:\\\/\\\/www.airbag.cc\\\/yokohama-fenders-50-kpa-vs-80-kpa\\\/\",\"name\":\"Yokohama Fenders: 50 kPa vs 80 kPa - 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