{"id":694,"date":"2011-05-04T18:35:56","date_gmt":"2011-05-04T23:35:56","guid":{"rendered":"https:\/\/www.parrinst.com\/?page_id=694"},"modified":"2018-11-02T11:33:38","modified_gmt":"2018-11-02T16:33:38","slug":"design-features","status":"publish","type":"page","link":"https:\/\/www.parrinst.com\/es\/products\/sample-preparation\/acid-digestion\/design-features\/","title":{"rendered":"Caracter\u00edsticas de Dise\u00f1o"},"content":{"rendered":"<h2>Estilos con Chaqueta de Metal y de Microondas<\/h2>\n\n\t\t\t<div id='694-1' class='gallery gallery-694 gallery-columns-1 gallery-size-medium' itemscope itemtype='http:\/\/schema.org\/ImageGallery'>\n\t\t\t\t<div class='gallery-row gallery-col-1 gallery-clear'>\n\t\t\t\t\t<figure class='gallery-item col-1' itemprop='associatedMedia' itemscope itemtype='http:\/\/schema.org\/ImageObject'>\n\t\t\t\t\t\t<div class='gallery-icon portrait'><a href=\"https:\/\/i0.wp.com\/www.parrinst.com\/es\/wp-content\/uploads\/sites\/7\/2011\/05\/4749_Acid-Digestion_23mL-GP_CrossSection.png?ssl=1\" itemprop=\"contentURL\"><img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"300\" src=\"https:\/\/i0.wp.com\/www.parrinst.com\/es\/wp-content\/uploads\/sites\/7\/2011\/05\/4749_Acid-Digestion_23mL-GP_CrossSection.png?fit=230%2C300&amp;ssl=1\" class=\"attachment-medium size-medium\" alt=\"4749 Acid Digestion Vessel with A280AC PTFE Liner and Flanged Closure\" srcset=\"https:\/\/i0.wp.com\/www.parrinst.com\/es\/wp-content\/uploads\/sites\/7\/2011\/05\/4749_Acid-Digestion_23mL-GP_CrossSection.png?w=513&amp;ssl=1 513w, https:\/\/i0.wp.com\/www.parrinst.com\/es\/wp-content\/uploads\/sites\/7\/2011\/05\/4749_Acid-Digestion_23mL-GP_CrossSection.png?resize=230%2C300&amp;ssl=1 230w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" itemprop=\"thumbnail\" \/><\/a><\/div>\n\t\t\t\t\t<\/figure>\n\t\t\t\t<\/div>\n\t\t\t\t<div class='gallery-row gallery-col-1 gallery-clear'>\n\t\t\t\t\t<figure class='gallery-item col-1' itemprop='associatedMedia' itemscope itemtype='http:\/\/schema.org\/ImageObject'>\n\t\t\t\t\t\t<div class='gallery-icon portrait'><a href=\"https:\/\/i0.wp.com\/www.parrinst.com\/es\/wp-content\/uploads\/sites\/7\/2011\/05\/4745_Acid-Digestion_23mL-GP_CrossSection.png?ssl=1\" itemprop=\"contentURL\"><img loading=\"lazy\" decoding=\"async\" width=\"211\" height=\"300\" src=\"https:\/\/i0.wp.com\/www.parrinst.com\/es\/wp-content\/uploads\/sites\/7\/2011\/05\/4745_Acid-Digestion_23mL-GP_CrossSection.png?fit=211%2C300&amp;ssl=1\" class=\"attachment-medium size-medium\" alt=\"4745 Acid Digestion Vessel with A255AC Teflon Liner and long, tapered closure\" srcset=\"https:\/\/i0.wp.com\/www.parrinst.com\/es\/wp-content\/uploads\/sites\/7\/2011\/05\/4745_Acid-Digestion_23mL-GP_CrossSection.png?w=480&amp;ssl=1 480w, https:\/\/i0.wp.com\/www.parrinst.com\/es\/wp-content\/uploads\/sites\/7\/2011\/05\/4745_Acid-Digestion_23mL-GP_CrossSection.png?resize=211%2C300&amp;ssl=1 211w\" sizes=\"auto, (max-width: 211px) 100vw, 211px\" itemprop=\"thumbnail\" \/><\/a><\/div>\n\t\t\t\t\t<\/figure>\n\t\t\t\t<\/div>\n\t\t\t<\/div><!-- .gallery -->\n\n<p><strong>Las recipientes de digesti\u00f3n \u00e1cida con revestimiento de PTFE de Parr<\/strong> se hacen en dos estilos diferentes: Hay una l\u00ednea de recipientes con chaqueta de metal que pueden ser calentadas en horno, ba\u00f1o de arena, aceite o agua y en otros medios convencionales, y una nueva l\u00ednea de recipientes de digesti\u00f3n desarrollada espec\u00edficamente para calentamiento r\u00e1pido en un horno de microondas. Ambos estilos est\u00e1n hechos en varios tama\u00f1os, ofreciendo una amplia selecci\u00f3n de recipientes que van desde Modelos econ\u00f3micos para las pruebas de rutina a estilos masivos para procedimientos que involucran condiciones extremas o muestras potencialmente peligrosas. Cada una de estas recipientes tiene un revestimiento de pared gruesa de PTFE que a\u00edsla completamente la carga del cuerpo de soporte. Estos revestimientos son desmontables y se pueden cargar o vaciar mientras est\u00e1n fuera de la recipiente para eliminar cualquier posible contaminaci\u00f3n por contacto \u00e1cido con piezas de metal. Pueden sustituirse si se da\u00f1an o contaminan.<\/p>\n<h4><a title=\"The Nature of PTFE\" href=\"https:\/\/www.parrinst.com\/es\/products\/sample-preparation\/acid-digestion\/design-features\/the-nature-of-ptfe\/\">La Naturaleza del PTFE<\/a><\/h4>\n<h4>Cierres \u00danicos<\/h4>\n<p>Varios dise\u00f1os se usan para mantener las recipientes de digesti\u00f3n \u00e1cida Parr selladas herm\u00e9ticamente durante ciclos de calentamiento y enfriamiento consecutivos, en los cuales los sellos convencionales pueden filtrar. Uno de estos dise\u00f1os utiliza un cierre c\u00f3nico de PTFE entre la copa y la tapa con una superficie de sellado inusualmente larga que tiende a ser auto-sellante. Este largo camino tambi\u00e9n minimiza la tendencia de la migraci\u00f3n de \u00e1cido a trav\u00e9s de la articulaci\u00f3n. Las recipientes que usan este dise\u00f1o se pueden sellar con s\u00f3lo girar una tapa estriada con la mano sin necesidad de usar una llave. Para aplicaciones que requieren temperaturas y presiones altas, los revestimientos de PTFE se hacen con un cierre amplio, con bridas y sellado apretando la tapa de la recipiente con una llave o, en un dise\u00f1o m\u00e1s grande, mediante el uso de tornillos para desarrollar la fuerza de sellado. Los Cierres para la Copa de PTFE en recipientes para Microondas Parr se establecen y mantienen con junta t\u00f3ricas de PTFE.<\/p>\n<h4>Sellos de Resorte<\/h4>\n<p>Debido a que el PTFE tiene un coeficiente mucho mayor de expansi\u00f3n t\u00e9rmica que los materiales dentro de los cuales est\u00e1 encerrado un revestimiento, un revestimiento de PTFE se expandir\u00e1 y se contraer\u00e1 m\u00e1s que su recinto cuando estas recipientes se calientan y se enfr\u00edan. Para compensar esta diferencia y para mantener una carga constante en el sello de PTFE, todas las recipientes de digesti\u00f3n \u00e1cida Parr tienen cierres de resorte, que continuar\u00e1n manteniendo la presi\u00f3n en el sello del revestimiento durante todo el ciclo de operaci\u00f3n, y particularmente durante el enfriamiento cuando las partes de PTFE de otro modo se relajar\u00edan y fugar\u00edan.<\/p>\n<h4>Discos de Desviaci<strong>\u00f3<\/strong>n de Seguridad<\/h4>\n<p>La mayor\u00eda de los recipientes de digesti\u00f3n \u00e1cida Parr son suministrados con sistemas de seguridad de desviaci\u00f3n para proteger el recipiente y al operador de los peligros por presiones internas altas o inesperadas. La caracter\u00edstica de desviaci\u00f3n consiste en un \u00e1rea con una estructura d\u00e9bil deliberadamente que permite que el recipiente falle de una manera predecible y razonablemente segura en caso de que se sobre presurice. La presi\u00f3n de ruptura en cada instalaci\u00f3n se establece mediante un disco de metal frangible situado como un s\u00e1ndwich con un disco interno que sirve como barrera contra la corrosi\u00f3n para proteger el disco principal de vapor corrosive.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Estilos con Chaqueta de Metal y de Microondas Las recipientes de digesti\u00f3n \u00e1cida con revestimiento de PTFE de Parr se hacen en dos estilos diferentes: Hay una l\u00ednea de recipientes con chaqueta de metal que pueden ser calentadas en horno, ba\u00f1o de arena, aceite o agua y en otros medios convencionales, y una nueva l\u00ednea [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":37722,"parent":292,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"general-tabs.php","meta":{"_acf_changed":false,"footnotes":"","_links_to":"","_links_to_target":""},"class_list":["post-694","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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