{"id":1037,"date":"2021-12-27T10:09:13","date_gmt":"2021-12-27T10:09:13","guid":{"rendered":"https:\/\/zecovalve.com\/thermoplastic-materials-as-valve-seat.html"},"modified":"2022-10-17T06:11:34","modified_gmt":"2022-10-17T06:11:34","slug":"thermoplastic-materials-as-valve-seat","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/es\/thermoplastic-materials-as-valve-seat.html","title":{"rendered":"Materiales termopl\u00e1sticos como asiento de v\u00e1lvula de bola"},"content":{"rendered":"<p>Se ofrece un gran n\u00famero de materiales termopl\u00e1sticos en v\u00e1lvulas, principalmente como opciones de asiento blando para aplicaciones de v\u00e1lvulas de bola. Tambi\u00e9n v\u00e1lvulas revestidas como v\u00e1lvula de mariposa revestida, v\u00e1lvula de globo revestida, v\u00e1lvula antirretorno revestida. <\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Asiento de v\u00e1lvula de bola<\/h2>\n\n\n\n<p>Las v\u00e1lvulas de bola desempe\u00f1an un papel fundamental en el control del flujo de fluido y la presi\u00f3n dentro de una tuber\u00eda, pero su eficacia y seguridad dependen del material del asiento utilizado. En esta entrada del blog, vamos a repasar los aspectos b\u00e1sicos de los cinco materiales de asiento de v\u00e1lvulas de bola m\u00e1s utilizados.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><mark style=\"background-color:var(--base)\" class=\"has-inline-color has-contrast-2-color\"><a href=\"https:\/\/zecovalve.com\/es\/categoria-de-productos\/ball-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">V\u00e1lvulas de bola<\/a><\/mark><\/strong><\/h3>\n\n\n\n<p>Tanto si se encuentran en una aplicaci\u00f3n petroqu\u00edmica, donde una fuga podr\u00eda ser devastadora para el medio ambiente, como en un laboratorio farmac\u00e9utico, donde la limpieza y el saneamiento son fundamentales, los asientos de las v\u00e1lvulas de bola deben ser fiables y robustos. Una v\u00e1lvula de bola est\u00e1 formada por el cuerpo de la v\u00e1lvula, la tapa del cuerpo, el v\u00e1stago, la bola s\u00f3lida y el asiento redondo de la v\u00e1lvula de bola.<\/p>\n\n\n\n<p>El asiento de la v\u00e1lvula de bola se encarga de sellar el fluido en su interior y de distribuir uniformemente la tensi\u00f3n de asiento. En los dise\u00f1os de v\u00e1lvulas de bola de asiento blando, se utiliza un elast\u00f3mero o un pol\u00edmero como junta y se inserta en un anillo de asiento met\u00e1lico. Este enfoque, a diferencia de las v\u00e1lvulas de bola de asiento duro, es popular porque proporciona una buena acci\u00f3n de sellado, es m\u00e1s ligero y m\u00e1s rentable.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Propiedades clave de los materiales de los asientos de las v\u00e1lvulas de bola<\/h3>\n\n\n\n<p>A la hora de elegir un material polim\u00e9rico para el asiento de una v\u00e1lvula de bola, intervienen numerosos factores. Las propiedades clave del material incluyen...<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Suficiente ductilidad para proporcionar un sellado fiable<\/li><li>Estabilidad dimensional para garantizar que el asiento de la v\u00e1lvula de bola mantenga su forma para un sellado y un rendimiento fiables.<\/li><li>Muy baja fricci\u00f3n para mantener el par del v\u00e1stago al m\u00ednimo<\/li><li>Bajo coeficiente de dilataci\u00f3n t\u00e9rmica para que el asiento de la v\u00e1lvula de bola conserve su forma cuando se producen cambios de temperatura<\/li><li>Excelente resistencia al desgaste para una larga vida \u00fatil<\/li><li>Compatibilidad qu\u00edmica con todos los medios implicados<\/li><li>En algunos entornos operativos, tambi\u00e9n es importante que los materiales de los asientos de las v\u00e1lvulas de bola presenten estas propiedades:<\/li><li>Baja absorci\u00f3n de humedad para evitar cambios dimensionales en presencia de agua o humedad elevada<\/li><li>Mantener el rendimiento con esterilizaciones repetidas que pueden incluir agua caliente, vapor y productos qu\u00edmicos de limpieza agresivos.<\/li><li>Buen rendimiento en presencia de descompresiones repentinas (es decir, ca\u00eddas de presi\u00f3n superiores a 650 psi).<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Materiales recomendados para los asientos de las v\u00e1lvulas de bola<\/h3>\n\n\n\n<p>Hay varios materiales que funcionan bien como asientos de v\u00e1lvulas de bola, como el acetal, el PEEK, el PTFE, el TFM y el UHMW-PE.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Asientos de v\u00e1lvulas de bola PEEK<\/h4>\n\n\n\n<p>Gama de temperaturas: -50 \u00b0F a 550 \u00b0F<\/p>\n\n\n\n<p>Presi\u00f3n m\u00e1xima a temperatura ambiente: 6000 psi<\/p>\n\n\n\n<p>Color: Beige<\/p>\n\n\n\n<p>El PEEK ofrece una excelente resistencia qu\u00edmica, muy baja fricci\u00f3n, autolubricaci\u00f3n y es ign\u00edfugo, adem\u00e1s de poseer una amplia gama de temperaturas de funcionamiento (de -70\u00b0F a 550\u00b0F). Puede soportar aplicaciones muy agresivas y funciona bien cuando es necesario exponerlo a agua caliente y vapor, pero no funciona bien en presencia de \u00e1cido sulf\u00farico.<\/p>\n\n\n\n<p>Adem\u00e1s, el PEEK se adapta muy bien a las aplicaciones nucleares y est\u00e1 disponible en grados aprobados por la FDA, as\u00ed como en grados rellenos con propiedades de desgaste mejoradas y mejor conductividad t\u00e9rmica. Tenga en cuenta que el PEEK suele elegirse para los asientos de las v\u00e1lvulas de bola cuando el rango de temperaturas de funcionamiento est\u00e1 fuera del del PTFE.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/PEEK.png\" alt=\"\" class=\"wp-image-15947\" width=\"500\" height=\"300\"\/><figcaption>PEEK<\/figcaption><\/figure>\n<\/div>\n\n\n<h4 class=\"wp-block-heading\">Asientos de v\u00e1lvulas de bola de PTFE<\/h4>\n\n\n\n<p>Temperatura de funcionamiento: -50\u00b0F a 400\u00b0F<\/p>\n\n\n\n<p>Presi\u00f3n m\u00e1xima a temperatura ambiente: 1000 psi<\/p>\n\n\n\n<p>Color: Blanco<\/p>\n\n\n\n<p>El PTFE (tambi\u00e9n conocido por su nombre comercial, tefl\u00f3n) tiene muchas de las mismas propiedades que el PEEK, pero implica una fricci\u00f3n a\u00fan menor, capacidad de funcionamiento en seco y una compatibilidad qu\u00edmica m\u00e1s amplia. Al igual que el PEEK, est\u00e1 disponible en grados aprobados por la FDA y puede soportar temperaturas criog\u00e9nicas de hasta -50 \u00b0F y altas temperaturas de hasta 550 \u00b0F, as\u00ed como presiones de hasta 5.000 psi.<\/p>\n\n\n\n<p>Al igual que el PEEK, el PTFE puede seguir funcionando incluso cuando se expone repetidamente a agua caliente y vapor. Sin embargo, hay que tener en cuenta que el PTFE no funciona bien en presencia de fl\u00faor o \u00e1lcalis. El PTFE tambi\u00e9n es muy f\u00e1cil de limpiar y est\u00e1 disponible en grados reforzados con fibra de vidrio o carbono que pueden ofrecer mejores caracter\u00edsticas de desgaste, menor propensi\u00f3n a la fluencia en fr\u00edo y menor conductividad t\u00e9rmica.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/PTFE.png\" alt=\"\" class=\"wp-image-15948\" width=\"500\" height=\"300\"\/><figcaption>PTFE<\/figcaption><\/figure>\n<\/div>\n\n\n<h4 class=\"wp-block-heading\">Asientos de v\u00e1lvulas de bola de RPTFE<\/h4>\n\n\n\n<p>Temperatura de funcionamiento: -50\u00b0F a 450\u00b0F<\/p>\n\n\n\n<p>Presi\u00f3n m\u00e1xima a temperatura ambiente: 2000 psi<\/p>\n\n\n\n<p>Color: Blanco<\/p>\n\n\n\n<p>El RTFE ha mejorado la resistencia al desgaste y a la abrasi\u00f3n con respecto al PTFE, al tiempo que mantiene su compatibilidad qu\u00edmica. Sus vers\u00e1tiles caracter\u00edsticas de temperatura permiten utilizar el RTFE en aplicaciones de vapor saturado. RTFE es el material de asiento est\u00e1ndar para la mayor\u00eda de las v\u00e1lvulas de bola flotante Zeco. Este asiento no debe utilizarse en servicio c\u00e1ustico (hidr\u00f3xido de sodio, hidr\u00f3xido de potasio, etc.).<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/RTFE.png\" alt=\"\" class=\"wp-image-15949\" width=\"500\" height=\"300\"\/><\/figure>\n<\/div>\n\n\n<h4 class=\"wp-block-heading\">Asientos de v\u00e1lvulas de bola TFM<\/h4>\n\n\n\n<p>Temperatura de funcionamiento: -75\u00b0F a 500\u00b0F<\/p>\n\n\n\n<p>Presi\u00f3n m\u00e1xima a temperatura ambiente: 2000 psi<\/p>\n\n\n\n<p>Color: Blanco transparente<\/p>\n\n\n\n<p>El TFM (a veces conocido por la marca Dyneon) es un material de PTFE de segunda generaci\u00f3n que combina las mejores propiedades del PTFE (baja fricci\u00f3n, resistencia qu\u00edmica, rendimiento a altas temperaturas) con una mejor recuperaci\u00f3n de tensiones y la capacidad de soportar presiones m\u00e1s elevadas. Tambi\u00e9n es m\u00e1s el\u00e1stico y resistente que el PTFE. La temperatura de funcionamiento del TFM oscila entre -100\u00b0F y 450\u00b0F y se adapta bien a aplicaciones con vapor y fluidos t\u00e9rmicos.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/TFM.png\" alt=\"\" class=\"wp-image-15950\" width=\"500\" height=\"300\" srcset=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/TFM.png 793w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/TFM-600x361.png 600w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/TFM-300x180.png 300w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/TFM-768x462.png 768w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption>TFM<\/figcaption><\/figure>\n<\/div>\n\n\n<h4 class=\"wp-block-heading\">Juntas de v\u00e1lvula de bola de UHMW-PE<\/h4>\n\n\n\n<p>Temperatura de funcionamiento: -40\u00b0F a 180\u00b0F<\/p>\n\n\n\n<p>Presi\u00f3n m\u00e1xima a temperatura ambiente: 2000 psi<\/p>\n\n\n\n<p>Color: Blanco transparente<\/p>\n\n\n\n<p>El UHMW-PE, que significa polietileno de peso molecular ultra alto, tiene un bajo coeficiente de fricci\u00f3n, una temperatura de funcionamiento que oscila entre -70\u00b0 F y 200\u00b0F, buena resistencia qu\u00edmica, buena estabilidad dimensional y buena resistencia a la abrasi\u00f3n. En general, los asientos de v\u00e1lvulas de bola fabricados con UHMW-PE pueden soportar presiones de hasta 1.500 psi y pueden soportar niveles bajos a medios de exposici\u00f3n a la radiaci\u00f3n.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Asientos de v\u00e1lvulas de bola de Delrin<\/h4>\n\n\n\n<p>Temperatura de funcionamiento: -40\u00b0F a 180\u00b0F<\/p>\n\n\n\n<p>Presi\u00f3n m\u00e1xima a temperatura ambiente: 6000 psi<\/p>\n\n\n\n<p>Color: Blanco<\/p>\n\n\n\n<p>Cuando se trata de entornos agresivos, se suele utilizar el acetal (tambi\u00e9n conocido como delrin). El acetal ofrece una excelente resistencia al desgaste, es muy r\u00edgido, tiene buena tenacidad y es resistente a la fluencia en fr\u00edo. Aunque su rango de temperatura de funcionamiento no es muy amplio (-70\u00b0F a 180\u00b0F), puede soportar presiones de hasta 5.000 psi. El acetal tambi\u00e9n funciona bien en entornos radiactivos, pero no debe utilizarse con flujo de ox\u00edgeno.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/UHMWPE.png\" alt=\"\" class=\"wp-image-15951\" width=\"500\" height=\"300\"\/><figcaption>UHMW-PE\/DELRIN<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong><mark style=\"background-color:var(--base)\" class=\"has-inline-color has-contrast-2-color\"><a href=\"https:\/\/zecovalve.com\/es\/categoria-de-productos\/butterfly-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">V\u00e1lvula de mariposa<\/a><\/mark><\/strong><\/h2>\n\n\n\n<p>Disponemos de distintos tipos de v\u00e1lvulas de mariposa para diversas aplicaciones. El tipo de junta de v\u00e1lvula de mariposa utilizada depende de las condiciones de la aplicaci\u00f3n: temperatura, presi\u00f3n y tipo de medio. Para obtener m\u00e1s informaci\u00f3n sobre la presi\u00f3n y la temperatura que puede tolerar una v\u00e1lvula, consulte las especificaciones publicadas por el fabricante.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Asientos de v\u00e1lvulas de mariposa BUNA-N (B)<\/h3>\n\n\n\n<p>BUNA-N es otro nombre para el nitrilo, que es un copol\u00edmero de caucho sint\u00e9tico de acrilonitrilo (ACN) y butadieno. Por su resistencia a la abrasi\u00f3n, a la tracci\u00f3n y a la compresi\u00f3n, este caucho es un elast\u00f3mero muy utilizado en la industria de las juntas.<\/p>\n\n\n\n<p>BUNA-N es muy resistente a los fluidos hidr\u00e1ulicos, el agua, los alcoholes, los \u00e1cidos, los aceites derivados del petr\u00f3leo, los combustibles, las grasas de silicona, etc. Sin embargo, lo que lo hace fuerte tambi\u00e9n lo hace inflexible. La temperatura nominal de BUNA es de 0\u00b0F a 180\u00b0F y es resistente al calor hasta 225\u00b0F.<\/p>\n\n\n\n<p>Este material se utiliza en algunas aplicaciones de automoci\u00f3n. Sin embargo, BUNA-N no es adecuado para aplicaciones en las que intervengan acetonas, cetonas, hidrocarburos clorados, nitrohidrocarburos u ozono.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Asientos de v\u00e1lvulas de mariposa de EPDM (E)<\/h3>\n\n\n\n<p>Clasificado para temperaturas de -30\u00b0F a 250\u00b0F. EPDM es la abreviatura de un compuesto llamado mon\u00f3mero de etileno propileno dieno. Tambi\u00e9n se denomina com\u00fanmente EPT, Nordel y EPR. El EPDM se utiliza mucho en el sector de la climatizaci\u00f3n debido a su resistencia a compuestos polares como el agua, los fosfatos, los \u00e9steres, las cetonas, los alcoholes y los glicoles. El material EPDM tambi\u00e9n es aplicable para manipular \u00e1cido sulf\u00farico concentrado, 20% hipoclorito s\u00f3dico (lej\u00eda), agua clorada para piscinas y otras soluciones alcalinas. El EPDM no es resistente a los disolventes y aceites de hidrocarburos, hidrocarburos clorados, aguarr\u00e1s o cualquier otro aceite derivado del petr\u00f3leo.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Asientos de v\u00e1lvulas de mariposa de PTFE (P)<\/h3>\n\n\n\n<p>PTFE es la abreviatura del t\u00e9rmino politetrafluoroetileno y se conoce com\u00fanmente como tefl\u00f3n. Este fluoropol\u00edmero termopl\u00e1stico tiene cualidades de baja fricci\u00f3n, resistencia qu\u00edmica y resistencia al fuego. El tefl\u00f3n se utiliza para crear algunas v\u00e1lvulas de mariposa de asiento el\u00e1stico.<\/p>\n\n\n\n<p>El PTFE es un material rentable en aplicaciones como el procesamiento qu\u00edmico o el petr\u00f3leo y el gas. Por su calidad aislante, es compatible con aplicaciones el\u00e9ctricas. Sin embargo, no debe utilizarse en condiciones de alta presi\u00f3n. La temperatura nominal del PTFE oscila entre -50\u00b0F y 400\u00b0F.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">VITON (V) Asientos de v\u00e1lvulas de mariposa<\/h3>\n\n\n\n<p>VITON es una marca registrada de un elast\u00f3mero de fluorocarbono fabricado por Dupont. La versi\u00f3n de 3M de este material se conoce como Flour. Este elast\u00f3mero ofrece resistencia t\u00e9rmica y qu\u00edmica.<\/p>\n\n\n\n<p>VITON es resistente a los \u00e1cidos minerales y a los productos de hidrocarburos concentrados o diluidos. La temperatura nominal de VITON oscila entre -20 \u00b0F y 300 \u00b0F.<\/p>\n\n\n\n<p>El fluorocarbono se utiliza en aplicaciones que implican aceites de petr\u00f3leo, hidrocarburos clorados, soluciones salinas y \u00e1cidos minerales. Debido a su tolerancia al calor y a su resistencia a la corrosi\u00f3n, el VITON se utiliza en la fabricaci\u00f3n de asientos de v\u00e1lvulas como las de guillotina. Sin embargo, esta v\u00e1lvula no es compatible con procesos que impliquen agua o vapor.<\/p>\n\n\n\n<p>A continuaci\u00f3n se describen algunos aspectos fundamentales de las propiedades, capacidades y aplicaciones de estos materiales.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Tipos de material<\/h2>\n\n\n\n<p>La Tabla 1 muestra los tipos de pol\u00edmeros utilizados en aplicaciones de v\u00e1lvulas, junto con las abreviaturas y nombres comerciales comunes de los materiales mencionados en estas directrices.<span id=\"more-292\"><\/span><\/p>\n\n\n\n<p>Tabla 1 Materiales termopl\u00e1sticos para asientos blandos<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2021\/12\/20211227100912-61c990c8af69b.jpg\" alt=\"\" class=\"wp-image-295\" title=\"Materiales termopl\u00e1sticos de asiento blando -SGV\"\/><\/figure>\n<\/div>\n\n\n<p>Tipo de pol\u00edmero Abreviatura Nombres comerciales comunes<br>Politetrafluoroetileno ,PTFE Tefl\u00f3n, Hostafl\u00f3n, Flu\u00f3n<br>Etileno tetrafluoroetileno, ETFE Tefzel<br>Policlorotrifluoretileno, PCTFE Kel-F, Aclon<br>Etileno Clorotrifluoroetileno, ECTFE Halar<br>Perfluoroalcoxi, PFA Tefl\u00f3n<br>Etileno propileno perfluorado, FEP Tefl\u00f3n, Neofl\u00f3n<br>Poliamida - Nylon PAM Ultramid, Maranyl, Nylatron<br>Poliamida imida, PAI Torlon, Vespel<br>Poli\u00e9ter \u00e9ter cetona, PEEK Victrex, Arlon<br>Sulfuro de polifenileno, PPS Ryton, Fortron, Supec<br>Poli\u00e9ter sulfona, PES, Victrex<br>Polioximetileno acetal copol\u00edmero, POM Kemetal, Delrin, Ultraform<br>Polietileno de peso molecular ultra alto, UHMWPE, Hostalen<\/p>\n\n\n\n<p>En general, estos materiales pueden dividirse en varias agrupaciones gen\u00e9ricas: Fluoropol\u00edmeros - Pol\u00edmeros como PTFE, PCTFE, ECTFE, etc. se basan en pol\u00edmeros de cadenas de hidrocarburos fluorados, derivados principalmente del tetrafluoroetileno y diversos derivados clorados.<\/p>\n\n\n\n<p>Pol\u00edmeros derivados del fenol - Los pol\u00edmeros lineales como PEEK, PES y PPS incorporan grupos fenileno, junto con ox\u00edgeno, azufre y carbono.<\/p>\n\n\n\n<p>Poliamidas - Pol\u00edmeros, como los nilones y la PAI, que incorporan el grupo -NH-(C=O)-. \uf0b7 Poliolefinas - Pol\u00edmeros de cadena hidrocarbonada, como el polietileno y el polipropileno.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-mechanical-properties\"><strong>Propiedades mec\u00e1nicas &nbsp;<\/strong><\/h2>\n\n\n\n<p>Los materiales termopl\u00e1sticos se diferencian fundamentalmente de los elast\u00f3meros en que tienen capacidades el\u00e1sticas muy reducidas y sufren deformaciones permanentes cuando se someten a deformaciones superiores a 5 a 10% aproximadamente (v\u00e9ase el alargamiento de los cauchos, que puede estar entre 70 y 700%).<\/p>\n\n\n\n<p>Las propiedades mec\u00e1nicas de estos materiales var\u00edan considerablemente, y su aplicaci\u00f3n satisfactoria depende de la selecci\u00f3n adecuada de los materiales. En esencia, el nivel de propiedades mec\u00e1nicas de un material rige la presi\u00f3n a la que dicho material puede emplearse con \u00e9xito. Dado que las propiedades de resistencia disminuyen invariablemente con la temperatura, la presi\u00f3n nominal de un material de asiento blando en una aplicaci\u00f3n de v\u00e1lvula tambi\u00e9n se reducir\u00e1 a medida que aumente la temperatura.<\/p>\n\n\n\n<p>Para ampliar las capacidades de presi\u00f3n de los termopl\u00e1sticos a temperaturas elevadas, a menudo se mezclan con cargas de refuerzo, como fibra de vidrio o de carbono, para mejorar su resistencia y rigidez. Pueden a\u00f1adirse otras cargas, como grafito, MoS2 o PTFE, para reducir la fricci\u00f3n y controlar el par de la v\u00e1lvula.<\/p>\n\n\n\n<p>La tabla 2 muestra las propiedades mec\u00e1nicas t\u00edpicas de los pol\u00edmeros termopl\u00e1sticos v\u00edrgenes y rellenos, utilizados como asientos blandos de v\u00e1lvulas.<\/p>\n\n\n\n<p>Tabla 2 Propiedades mec\u00e1nicas de los materiales termopl\u00e1sticos para asientos de v\u00e1lvulas<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2021\/12\/20211227100912-61c990c8b44c2.jpg\" alt=\"\" class=\"wp-image-294\" title=\"Propiedades mec\u00e1nicas de los materiales termopl\u00e1sticos para asientos de v\u00e1lvulas-SGV\"\/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong>Resistencia qu\u00edmica<\/strong><\/h2>\n\n\n\n<p>En general, los materiales termopl\u00e1sticos presentan una excelente resistencia qu\u00edmica. Sin embargo, existe un equilibrio entre el grado de inercia qu\u00edmica y las propiedades mec\u00e1nicas: una puede mejorarse a expensas de la otra; por ejemplo, el PTFE es el m\u00e1s inerte qu\u00edmicamente de todos, pero sus propiedades mec\u00e1nicas son bastante inferiores.<\/p>\n\n\n\n<p>Hay otros puntos a tener en cuenta. Mientras que los materiales de fluorocarbono tienen una absorci\u00f3n de agua muy baja, varios de los otros materiales, en particular los nilones, absorben cantidades bastante grandes de humedad. Tambi\u00e9n hay ciertos tipos qu\u00edmicos que atacan a determinados materiales: los \u00e1cidos afectan al PEEK y al POM; los arom\u00e1ticos al ECTFE; los \u00e9teres y \u00e9steres al ECTFE y al PCTFE; los \u00e1lcalis a la PAI y al POM.<\/p>\n\n\n\n<p>El cuadro 3 es un resumen de las caracter\u00edsticas m\u00e1s destacadas de cada uno de los materiales termopl\u00e1sticos utilizados como asientos blandos.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2021\/12\/20211227100912-61c990c8b7fd9.jpg\" alt=\"\" class=\"wp-image-293\" title=\"Comparaci\u00f3n de materiales termopl\u00e1sticos-SGV\"\/><\/figure>\n<\/div>\n\n\n<p>Pol\u00edmero Ventajas Desventajas<br>PTFE Extraordinaria resistencia qu\u00edmica Baja fricci\u00f3n Alta Tm\u00e1x operativa Baja rigidez, resistencia y dureza<br>ETFE Buenas propiedades de fluencia, tracci\u00f3n y desgaste Caro Atacado por: \u00e9steres, arom\u00e1ticos<br>PCTFE M\u00e1s r\u00edgido que el PTFE Muy caro Atacan: \u00e9steres, \u00e9teres e hidrocarburos halogenados<br>ECTFE Buenas propiedades de fluencia, tracci\u00f3n y desgaste Caro Atacado por: \u00e9steres, arom\u00e1ticos<br>PFA Tm\u00e1x m\u00e1s alta de los fluoropl\u00e1sticos Muy caro Baja rigidez, resistencia y dureza<br>FEP Buena resistencia qu\u00edmica Baja rigidez, resistencia y dureza<br>PAM 6, 6\/6, &amp; 6\/12 Buena resistencia a la abrasi\u00f3n Buena resistencia Alta adsorci\u00f3n de agua<br>PAM 11 y 12 Menor adsorci\u00f3n de agua Menor fuerza y resistencia al calor que los 6's PAI Pl\u00e1stico sin relleno m\u00e1s fuerte Buena resistencia al desgaste Muy caro Atacado por \u00e1lcalis<br>PEEK Alta Tm\u00e1x Buena resistencia qu\u00edmica Muy caro Atacado por \u00e1cidos<br>PPS Alta Tm\u00e1x Buena resistencia qu\u00edmica<br>PES Alta Tm\u00e1x Alta adsorci\u00f3n de agua<br>POM Duro y r\u00edgido Buena resistencia a la abrasi\u00f3n, a la fluencia y a los productos qu\u00edmicos Atacado por \u00e1cidos y \u00e1lcalis<br>UHMWPE Buena resistencia a la abrasi\u00f3n y a los productos qu\u00edmicos Baja Tma<\/p>\n\n\n\n<!-- Andy:h-related-tags -->\n<h2 id=\"h-related-tags\">Etiquetas relacionadas :<\/h2>\n<!-- \/Andy:h-related-tags -->\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/\">V\u00e1lvula ZECO<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/difference-between-gate-valves-and-ball-valves.html\/\">V\u00e1lvula de compuerta frente a v\u00e1lvula de bola<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/introduction-of-epdm-nbr-butterfly-valve-seat-industrial-valve-information-news-zeco-valve.html\/\">V\u00e1lvula de mariposa de NBR<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/advantages-and-disadvantages-of-globe-valves.html\/\">\u00bfQu\u00e9 es una v\u00e1lvula de globo?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/gate-valve-problems.html\/\">Reparaci\u00f3n de v\u00e1lvulas de compuerta<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/what-is-an-axial-flow-silent-check-valve.html\/\">Qu\u00e9 es una v\u00e1lvula antirretorno axial<\/a>\n\n<\/div>\n\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/producto\/manual-gate-valve\/\">v\u00e1lvula de compuerta de accionamiento manual Fabricantes<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/the-function-of-globe-valve-in-pipeline-system.html\/\">\u00bfQu\u00e9 son las v\u00e1lvulas de globo?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/es\/difference-between-gate-valve-and-butterfly-valve.html\/\">Diferencia entre v\u00e1lvula de compuerta y v\u00e1lvula de mariposa<\/a>\n\n<\/div>\n\n\n\n<p>Diez art\u00edculos antes y despu\u00e9s<\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/es\/ip-code-ingress-protection-ratingsvalve-actuator.html\/\">C\u00f3digo IP - Grado de protecci\u00f3n (actuador de v\u00e1lvula)<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/es\/wafer-type-double-disc-piston-lift-check-valve-installation-operation-and-maintenance-manual.html\/\">V\u00e1lvula de retenci\u00f3n de doble disco\/elevaci\u00f3n de pist\u00f3n tipo wafer-Manual de instalaci\u00f3n, funcionamiento y mantenimiento<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/es\/valve-price-doesnt-mean-everything.html\/\">El precio de una v\u00e1lvula no lo es todo<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/es\/aker-solutions-wins-heidrun-platform-equipment-frame-agreement.html\/\">Aker Solutions se adjudica el contrato marco de equipos para plataformas Heidrun<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/es\/china-and-main-country-valve-welding-materialelectrode-for-sealing-surface.html\/\">China y pa\u00eds principal Material de soldadura de v\u00e1lvulas (electrodo) para la superficie de sellado<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/es\/globe-valve-installationoperation-and-maintenance-manual.html\/\">Manual de instalaci\u00f3n, funcionamiento y mantenimiento de v\u00e1lvulas de globo<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/es\/ball-valves-installation-operation-and-maintenance-manual.html\/\">Manual de instalaci\u00f3n, funcionamiento y mantenimiento de v\u00e1lvulas de bola<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/es\/gate-valves.html\/\">V\u00e1lvulas de compuerta<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/es\/application-of-advanced-technology-in-the-domestic-large-pipeline-valveall-welded-ball-valve.html\/\">Aplicaci\u00f3n de tecnolog\u00eda avanzada en la v\u00e1lvula de tuber\u00eda de gran tama\u00f1o nacional: v\u00e1lvula de bola totalmente soldada<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/es\/butterfly-valve-specification.html\/\">Especificaci\u00f3n de la v\u00e1lvula de mariposa<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Se ofrece una gran cantidad de materiales termopl\u00e1sticos en v\u00e1lvulas, principalmente como opciones de asiento blando para aplicaciones de v\u00e1lvulas de bola. Tambi\u00e9n v\u00e1lvulas revestidas como... <a title=\"Materiales termopl\u00e1sticos como asiento de v\u00e1lvula de bola\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/es\/thermoplastic-materials-as-valve-seat.html\" aria-label=\"M\u00e1s en Materiales termopl\u00e1sticos como asiento de v\u00e1lvula de bola\">Leer m\u00e1s<\/a><\/p>","protected":false},"author":2,"featured_media":15947,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1],"tags":[1994,1957,1814,1997,1998,1995,1993,1996,1999,3235],"class_list":["post-1037","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-ball-valve-seat","tag-butterfly-valve","tag-butterfly-valve-seat","tag-pctfe-valve-seat","tag-pctfe-valve-seat-manufacturer","tag-peek-valve-seat-material","tag-valve-seat","tag-valve-seat-material","tag-valve-seat-materials","tag-valve-seat-rings","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/PEEK.png",884,606,false],"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/es\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":1,"name":"Uncategorized","slug":"uncategorized","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":452,"filter":"raw","cat_ID":1,"category_count":452,"category_description":"","cat_name":"Uncategorized","category_nicename":"uncategorized","category_parent":0}],"tag_info":[{"term_id":1994,"name":"ball valve seat","slug":"ball-valve-seat","term_group":0,"term_taxonomy_id":1994,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":1957,"name":"butterfly valve","slug":"butterfly-valve","term_group":0,"term_taxonomy_id":1957,"taxonomy":"post_tag","description":"","parent":0,"count":30,"filter":"raw"},{"term_id":1814,"name":"butterfly valve seat","slug":"butterfly-valve-seat","term_group":0,"term_taxonomy_id":1814,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"},{"term_id":1997,"name":"PCTFE Valve Seat","slug":"pctfe-valve-seat","term_group":0,"term_taxonomy_id":1997,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_9e7b7b-8a\"} \/-->\r\n\r\n<!-- wp:generateblocks\/button-container {\"uniqueId\":\"6d8495a3\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"3d442e11\",\"hasUrl\":true,\"target\":true,\"backgroundColor\":\"#0366d6\",\"textColor\":\"#ffffff\",\"backgroundColorHover\":\"#222222\",\"textColorHover\":\"#ffffff\",\"paddingTop\":\"15\",\"paddingRight\":\"20\",\"paddingBottom\":\"15\",\"paddingLeft\":\"20\"} -->\r\n<a class=\"gb-button gb-button-3d442e11 gb-button-text\" href=\"mailto:commercial@zecovalve.com\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET PCTFE VALVE SEAT PRICE<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-what-is-pctfe-material\">What is PCTFE Material?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nPCTFE (Polychlorotrifluoroethylene) PCTFE (Polychlorotrifluoroethylene) is a homopolymer of Chlorotrifluoroethylene. PCTFE is a unique fluoropolymer that is capable of maintaining its physical properties at exceptionally low operating temperatures.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nPCTFE has excellent chemical resistance, radiation resistance, and flammability characteristics. The material has a useful temperature range of -400\u00b0F to 380\u00b0F. PCTFE is resistant to cold flow and it has the lowest coefficient of thermal expansion of any unfilled fluoropolymer. These characteristics make it an excellent choice when dimensional stability is critical.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nPCTFE is often used for aerospace applications when chemical resistance, a broad operating temperature range, and low flammability are required. It is also extensively used for cryogenic valve applications.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Key Properties of PCTFE Material<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Dimensionally stable, rigid, and resistant to cold flow<\/li>\r\n \t<li>Very low gas permeation and outgassing<\/li>\r\n \t<li>Near zero moisture absorption<\/li>\r\n \t<li>Excellent chemical resistance<\/li>\r\n \t<li>High compression strength<\/li>\r\n \t<li>Low deformation under load<\/li>\r\n \t<li>Non-flammable<\/li>\r\n \t<li>Temperature range: -400\u00b0 to 380\u00b0F<\/li>\r\n \t<li>Radiation Resistance<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:table {\"className\":\"is-style-stripes\"} -->\r\n<figure class=\"wp-block-table is-style-stripes\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td>Property<\/td>\r\n<td>Value<\/td>\r\n<td>Units<\/td>\r\n<td>Method<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Tensile Strength<\/td>\r\n<td>4860 - 5710\r\n34 - 39<\/td>\r\n<td>psi\r\nMPa<\/td>\r\n<td>D 638<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Elongation<\/td>\r\n<td>100 - 250<\/td>\r\n<td>%<\/td>\r\n<td>D 638<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Flexural Strength, 73\u00b0F<\/td>\r\n<td>9570 - 10300\r\n66 - 71<\/td>\r\n<td>psi\r\nMPa<\/td>\r\n<td><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Flex Modulus<\/td>\r\n<td>200 \u2013 243 x 103\r\n1.4 \u2013 1.7<\/td>\r\n<td>psi\r\nMPa<\/td>\r\n<td><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Impact Strength, Izod, 23 deg C<\/td>\r\n<td>2.5 \u2013 3.5<\/td>\r\n<td>ft-lb\/in<\/td>\r\n<td>D 256<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Compressive Stress at 1% deformation,<\/td>\r\n<td>1570 \u2013 1860\r\n11 - 13<\/td>\r\n<td>psi\r\nMPa<\/td>\r\n<td>D 695<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Density<\/td>\r\n<td>2.10 to 2.17<\/td>\r\n<td>gm\/cu.cm<\/td>\r\n<td><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Coefficient of Linear Expansion<\/td>\r\n<td>7 x 10-5<\/td>\r\n<td>K-1<\/td>\r\n<td><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Melting Point<\/td>\r\n<td>410 -414\r\n210 - 212<\/td>\r\n<td>deg F\r\ndeg C<\/td>\r\n<td><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Thermal Conductivity<\/td>\r\n<td>1.45\r\n0.84<\/td>\r\n<td>Btu\u00b7in\/h\u00b7ft2\u00b7\u00b0F\r\nW\/m\u00b7K<\/td>\r\n<td>ASTM C 177<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Specific Heat<\/td>\r\n<td>0.22\r\n0.92<\/td>\r\n<td>Btu\/lb\/deg F\r\nkJ\/Kg\/deg K<\/td>\r\n<td><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Heat Distortion Temperature, 66 lb\/sq.in (0.455 MPa)<\/td>\r\n<td>259\r\n126<\/td>\r\n<td>deg F\r\ndeg C<\/td>\r\n<td>D 648<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Processing Temperature<\/td>\r\n<td>620\r\n327<\/td>\r\n<td>deg F\r\ndeg C<\/td>\r\n<td><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Dielectric Strength, short time, 0.004\u201d<\/td>\r\n<td>3000<\/td>\r\n<td>Volt\/mil<\/td>\r\n<td>D 149<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Arc-Resistance<\/td>\r\n<td>360<\/td>\r\n<td>sec<\/td>\r\n<td>D 495<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Volume Resistivity, @ 50% RH<\/td>\r\n<td>2 x 1017<\/td>\r\n<td>ohm-cm<\/td>\r\n<td>D 257<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Surface Resistivity, @ 100% RH<\/td>\r\n<td>1 x 1015<\/td>\r\n<td>Ohm sq-1<\/td>\r\n<td>D 257<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Dielectric Constant, 1 kHz<\/td>\r\n<td>2.6<\/td>\r\n<td>\u03b5<\/td>\r\n<td>D150-81<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Dissipation Factor, @ 1 kHz<\/td>\r\n<td>0.02<\/td>\r\n<td><\/td>\r\n<td>D150-81<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Water Absorption<\/td>\r\n<td>0.00<\/td>\r\n<td>% increase in weight<\/td>\r\n<td>D570-81<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Flame Rating+<\/td>\r\n<td>Non-flammable<\/td>\r\n<td><\/td>\r\n<td>D 635<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Coefficient of friction<\/td>\r\n<td><\/td>\r\n<td><\/td>\r\n<td>D 1894<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Specific Gravity<\/td>\r\n<td>2.10 to 2.17<\/td>\r\n<td><\/td>\r\n<td>D792<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Moisture Permeability Constant<\/td>\r\n<td>0.2<\/td>\r\n<td>g\/m, 24 hours<\/td>\r\n<td><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>O2\u00a0Permeability<\/td>\r\n<td>1.5 x 10-10<\/td>\r\n<td>Cc, cm\/sq.cm, sec, atm<\/td>\r\n<td><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>N2\u00a0Permeability<\/td>\r\n<td>0.18 x 10-10<\/td>\r\n<td>Cc, cm\/sq.cm, sec, atm<\/td>\r\n<td><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>CO2\u00a0Permeability<\/td>\r\n<td>2.9 x 10-10<\/td>\r\n<td>Cc, cm\/sq.cm, sec, atm<\/td>\r\n<td><\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n<!-- \/wp:table -->\r\n\r\n<!-- wp:heading -->\r\n<h2>PCTFE Valve Seat<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nBall valve seats that show signs of swelling, blistering, or \u201cpopcorning\u201d have been permeated at a molecular level. Needless to say, this can cause some serious issues such as leaks and catastrophic failure. The solution is to find a ball valve seat material that is highly resistant to permeation and an excellent choice would be PCTFE. In this week\u2019s blog post, we will talk about PCTFE Ball Valve Seats and how they are used in Low Permeation Applications.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nOne of the best materials for a ball valve seat application where permeability is a problem would be PCTFE (Polychlorotrifluoroethylene), a thermoplastic chlorofluoropolymer. PCTFE is sometimes referred to as Modified PTFE or PCTFE, as well as by trade names Kel-F, Voltalef, and Neoflon. PCTFE is often thought of as a second-generation PTFE material that maintains the chemical and thermal resistance of PTFE along with its low friction. It is also similar to other fluoropolymers such as PFA or FEP.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nOne of the defining characteristics of PCTFE is that it has a much more dense molecular structure and a low void and micro-porosity content when compared to similar ball valve seat materials. This gives it a very low permeability coefficient, which means that the likelihood of it swelling or popcorning is far lower than other materials. For example, its permeability for O2, N2, CO2, and H2 are 1.5 x 10-10, 0.18 x 10-10, 2.9 x 10-10, and 56.4 x 10-10 darcy, respectively.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nPCTFE also provides improved toughness and strength along with good deformation recovery and excellent creep and cold-flow resistance. In addition, it has a wide operating temperature range of -100\u00b0F to 500\u00b0F. In fact, it performs extremely well at cryogenic temperatures. Because of its low friction, it also results in a very low ball valve operating torque. PCTFE also exhibits zero moisture absorption and is non-wetting.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nPCTFE works well in operating environments where other polymers may fail. For example, it is well adapted to nuclear service that may involve high radiation exposure, is non-flammable (D 635), and is resistant to attack by the vast majority of chemicals and oxidizing agents. The only chemicals that might lead to slight swelling are ethers, esters, aromatic solvents, and halocarbon compounds.\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":4,"filter":"raw"},{"term_id":1998,"name":"PCTFE Valve Seat Manufacturer","slug":"pctfe-valve-seat-manufacturer","term_group":0,"term_taxonomy_id":1998,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_7bd7e9-a7\"} \/-->\r\n\r\n<!-- wp:generateblocks\/button-container {\"uniqueId\":\"6d8495a3\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"3d442e11\",\"hasUrl\":true,\"target\":true,\"backgroundColor\":\"#0366d6\",\"textColor\":\"#ffffff\",\"backgroundColorHover\":\"#222222\",\"textColorHover\":\"#ffffff\",\"paddingTop\":\"15\",\"paddingRight\":\"20\",\"paddingBottom\":\"15\",\"paddingLeft\":\"20\"} -->\r\n<a class=\"gb-button gb-button-3d442e11 gb-button-text\" href=\"mailto:commercial@zecovalve.com\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET PCTFE VALVE SEAT PRICE<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-what-is-pctfe\">What is PCTFE?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nPCTFE(Polychlorotrifluoroethylene) is a fluorocarbon-based polymer. It offers a unique combination of physical and mechanical properties, nonflammability, and low permeation capability to moisture and steam atmosphere compared to other plastics. The heat resistance and chemical resistance capability are less than PFA and FEP, however, mechanical characteristics(especially hardness) are superior. It is suitable for utilizing in the temperature range of -200\u2103\uff5e150\u2103, especially for cryogenic applications such as oxygen, hydrogen, nitrogen, and more. PCTFE has a very strong resistance performance to low temperatures.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Property List of PCTFE<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:table {\"className\":\"is-style-stripes\"} -->\r\n<figure class=\"wp-block-table is-style-stripes\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td><strong>Item<\/strong><\/td>\r\n<td><strong>Color<\/strong><\/td>\r\n<td><strong>Density<\/strong><\/td>\r\n<td><strong>Hardness<\/strong><\/td>\r\n<td><strong>Compressive strength<\/strong><\/td>\r\n<td><strong>Long-term Temp.<\/strong><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Units<\/td>\r\n<td><\/td>\r\n<td>g\/cm3<\/td>\r\n<td>Shore D<\/td>\r\n<td>Mpa<\/td>\r\n<td>\u2103<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Value<\/td>\r\n<td>Translucent<\/td>\r\n<td>2.13<\/td>\r\n<td>75-85<\/td>\r\n<td>80<\/td>\r\n<td>-80~115<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n<!-- \/wp:table -->\r\n\r\n<!-- wp:heading -->\r\n<h2><strong><a href=\"https:\/\/zecovalve.com\/product-category\/ball-valve\"><mark class=\"has-inline-color has-contrast-2-color\" style=\"background-color: var(--base)\">Ball Valve<\/mark><\/a><\/strong> Seats<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nSeats and inserts, which are important components in the valve industry, are critical components, PTFE is very often chosen as the raw material. PTFE provides a low-friction seat, with excellent media compatibility. Filled grades provide wear resistance and can support seating loads of the higher class of valves.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2><strong><mark class=\"has-inline-color has-contrast-2-color\" style=\"background-color: var(--base)\"><a href=\"https:\/\/zecovalve.com\/product-category\/butterfly-valve\">Butterfly Valve<\/a><\/mark><\/strong> Seats<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nPTFE is one of the Butterfly Valve Seat Materials. PTFE Butterfly Valve Seats Are Available in Pure or Reinforced PTFE to Meet Specific Requirements for Different Working Environments.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nPTFE Seats' Excellent Chemical Resistance, High-Temperature Resistance, Self-lubrication, and Low Friction Properties of PTFE Make It a General Material for Valve Seats.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>VALVE SEAT MATERIAL SELECTION<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:table {\"className\":\"is-style-stripes\"} -->\r\n<figure class=\"wp-block-table is-style-stripes\">\r\n<table>\r\n<thead>\r\n<tr>\r\n<th class=\"has-text-align-center\" data-align=\"center\">Material Name<\/th>\r\n<th>Main Properties<\/th>\r\n<th>Notes<\/th>\r\n<th>Temperature Range<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">VIRGIN PTFE<\/td>\r\n<td>Very low coefficient of friction and excellent chemical resistance.<\/td>\r\n<td>FDA approved<\/td>\r\n<td>-40\u00b0C to 260\u00b0C<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">15% Glass Filled PTFE<\/td>\r\n<td>Decreased compressive strength and lower deformation under load than virgin PTFE.<\/td>\r\n<td>Abrasive material<\/td>\r\n<td>-40\u00b0C to 260\u00b0C<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">25% Glass Filled PTFE<\/td>\r\n<td>Similar to 15% Glass better wear resistance, higher compressive strength, and lower deformation under load.<\/td>\r\n<td>Abrasive material<\/td>\r\n<td>-40\u00b0C to 260\u00b0C<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Stainless Steel Filled PTFE<\/td>\r\n<td>Extremely hard-wearing. Excellent strength and stability under extreme loads and elevated temperatures.<\/td>\r\n<td>Can be used in steam and thermal fluid applications<\/td>\r\n<td>-40\u00b0C to 260\u00b0C<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">TFM<\/td>\r\n<td>Much denser polymer structure than Virgin PTFE. Displays better stress recovery.<\/td>\r\n<td>Modified TFE Polymer<\/td>\r\n<td>-40\u00b0C to 260\u00b0C<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Carbon Graphite filled TFM<\/td>\r\n<td>Lower thermal expansion-contraction rate than conventional TFM.<\/td>\r\n<td>Ideal for use in steam and thermal fluid applications<\/td>\r\n<td>-40\u00b0C to 260\u00b0C and even 320\u00b0C on Thermal Fluid applications<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">UHMWPE<\/td>\r\n<td>Highly resistant to corrosive chemicals, with the exception of oxidizing acids and organic solvents.<\/td>\r\n<td>Also known as High Modulus Polyethylene (HMPE) or High-Performance Polyethylene (HPPE)<\/td>\r\n<td>-40\u00b0C to +80\u00b0C<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">PCTFE<\/td>\r\n<td>Excellent for cryogenic and Oxygen use.<\/td>\r\n<td>A homo-polymer of Chlorotrifluoroethylene<\/td>\r\n<td>-270\u00b0C to 260\u00b0C<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Virgin PEEK 450G<\/td>\r\n<td>Excellent chemical resistance and mechanical properties at elevated temperatures.<\/td>\r\n<td>An organic polymer thermoplastic<\/td>\r\n<td>-40\u00b0C to 260\u00b0C<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Carbon Filled PEEK<\/td>\r\n<td>Many similar properties to Virgin PEEK. Particularly suitable for elevated temperatures and high-load situations.<\/td>\r\n<td>Low coefficient of friction and suitable for many extremely corrosive applications<\/td>\r\n<td>-40\u00b0C to 260\u00b0C<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">PEEK HT<\/td>\r\n<td>Retains all key features and benefits of PEEK 450G but retains physical properties to a higher temperature.<\/td>\r\n<td>Can be supplied in both virgins unfilled or as-filled compounded material<\/td>\r\n<td>up to 260\u00b0C<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Acetal and Delrin<\/td>\r\n<td>Displays good resistance to wear and deformation under load.<\/td>\r\n<td>Excellent for valve seat applications<\/td>\r\n<td>up to 80\u00b0C<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n<!-- \/wp:table -->","parent":0,"count":5,"filter":"raw"},{"term_id":1995,"name":"peek valve seat material","slug":"peek-valve-seat-material","term_group":0,"term_taxonomy_id":1995,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":1993,"name":"valve seat","slug":"valve-seat","term_group":0,"term_taxonomy_id":1993,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":1996,"name":"valve seat material","slug":"valve-seat-material","term_group":0,"term_taxonomy_id":1996,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":1999,"name":"valve seat materials","slug":"valve-seat-materials","term_group":0,"term_taxonomy_id":1999,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":3235,"name":"Valve Seat Rings","slug":"valve-seat-rings","term_group":0,"term_taxonomy_id":3235,"taxonomy":"post_tag","description":"<!-- wp:paragraph -->\r\n\r\nThe Valve seat or seat ring is used to support the valve plug or disc in a fully closed position and to form a sealing part. Usually, the valve seat diameter is the maximum flow diameter of the valve. The seat material is very wide, all kinds of rubber, plastic, and metal materials can be used as seat material, such as EPDM, NBR, NR, PTF.E, PEEK, PFA, SS315, STELLITE, and so on\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_6f889b-ad\"} \/-->\r\n\r\n<!-- wp:generateblocks\/button-container {\"uniqueId\":\"6d8495a3\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"3d442e11\",\"hasUrl\":true,\"target\":true,\"backgroundColor\":\"#0366d6\",\"textColor\":\"#ffffff\",\"backgroundColorHover\":\"#222222\",\"textColorHover\":\"#ffffff\",\"paddingTop\":\"15\",\"paddingRight\":\"20\",\"paddingBottom\":\"15\",\"paddingLeft\":\"20\"} -->\r\n<a class=\"gb-button gb-button-3d442e11 gb-button-text\" href=\"mailto:commercial@zecovalve.com\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET VALVE SEAT RINGS PRICE<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nFor the butterfly valve, the seat material usually are rubbers, such as EPDM, NBR, NR (Natural hard rubber)\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nFor the ball valve and plug valve the seat material usually is plastics, such as PTFE, PEEK, and so on.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nFor the globe valve and gate valve the seat material usually is metal to metal.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nFor valves using soft seat material, their shut-off performance is great and even can reach zero bubble seat tightness. while the disadvantaged part is they can not resist high temperature and high-pressure applications.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nOn the other hand, those valve's seat material is metal to metal therefore they can stand with high-pressure ratings up to 2500LB.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-types-of-seat-rings\">Types of Seat Rings<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Soft Seat (Nonmetallic Seat Ring)<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe majority of valves have soft seat inserts and elastomer or polymer seals. The nonmetallic seat ring is made from e.g. Teflon. The ring is held against the ball by an insert. For fire-safe service, a secondary metal-to-metal seating arrangement is required to omit leakage in the event that the soft seat material is lost during a fire. Soft seated valves are recommended for clean service only and are unsuitable for dirty\/abrasive service or high temperatures.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Double Beveled Sealing Ring<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe structure design of a double-beveled sealing ring has been adopted to reduce the friction between the ball and the sealing ring to achieve lower operating torque. When the medium pressure is low, the ball has a smaller contacting surface with a sealing ring, which introduces higher sealing pressure to ensure the sealing reliability. When the medium pressure gets higher, the contacting area between the ball and the sealing ring increases accordingly. A larger contact area reduces the sealing pressure to avoid the deformation of the sealing ring.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Cantilevered lips seat rings<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nSeat rings with cantilevered lips are designed so that the ball contacts initially only the tip of the lip. As the upstream and downstream seats are pre-stressed on an assembly against the ball, the lips de\ufb02ect and put the seat rings into a torsion. When the valve is being closed against the line pressure, the lip of the downstream seat de\ufb02ects still further until \ufb01nally the entire seat surface matches the ball. By this design, the seats have some spring action that promotes good sealing action also at low \ufb02uid pressures. Furthermore, the resilient construction keeps the seats from being crushed at high \ufb02uid loads\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Pressure equalizing slots<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe seat ring shown is provided with peripheral slots, which are known as pressure-equalizing slots. During the closing of the valve, the maximum surge pressure occurs, during which the downstream seat can be forced to intrude into the ball port and the valve can become inoperative. The pressure equalizing slots prevents this potential failure. When pressure causes the upstream seat to move against the ball and the ball moves downstream, the pressure simply leaks into the valve body cavity through the relief slots. The upstream seat ring becomes pressure balanced. Downstream sealing prevents seat damage and lowers operating torque while providing full bidirectional capability. The seats with pressure equalizing slots also permit the valve to operate at a higher pressure differential with lower torques than double sealing valves in which there is sealing between both seats and the ball.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Soft Seat (Metallic Seat Ring)<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe metallic seat ring, containing a nonmetallic insert, usually requires spring force to achieve a tight seal. Due to springs, this design is not used in corrosive service. Even though this seat has a metal seat ring, it is categorized as a soft seated ball valve due to its use of soft material insert, which is in contact with the ball.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Metal to Metal Seats<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nFor services unsuitable for soft seating, metal and ceramic seating are being used. In general practice, hard metal seated ball valves (typically stellite) are only used in severe service conditions such as high temperature, high erosion, corrosion or abrasion, slurry, etc. Metal seats are generally not bubble tight. Metal seats and balls are typically lapped in matching sets resulting in perfect roundness and fitness to ensure smooth operation and tight shut-off and achieving \u2018Zero Leakage\u2019. Metal seats come in different classes of Shut Off including Class IV, V, and VI. Metal Seat and Ball are fabricated from base metals coated with hard chrome, tungsten carbide, and Stellite.\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":5,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}],"post_tag":[{"value":1994,"label":"ball valve seat"},{"value":1957,"label":"butterfly valve"},{"value":1814,"label":"butterfly valve seat"},{"value":1997,"label":"PCTFE Valve Seat"},{"value":1998,"label":"PCTFE Valve Seat Manufacturer"},{"value":1995,"label":"peek valve seat material"},{"value":1993,"label":"valve seat"},{"value":1996,"label":"valve seat material"},{"value":1999,"label":"valve seat materials"},{"value":3235,"label":"Valve Seat Rings"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Thermoplastic Materials as Ball Valve Seat &amp; Butterfly Valve Seat | ZECO<\/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:\/\/zecovalve.com\/es\/thermoplastic-materials-as-valve-seat.html\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Thermoplastic Materials as Ball Valve Seat &amp; Butterfly Valve Seat | ZECO\" \/>\n<meta property=\"og:description\" content=\"A large number of thermoplastic materials are offered in valves, mainly as soft-seat options for ball valve applications. Also lined valves like ... Leer m\u00e1s\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/es\/thermoplastic-materials-as-valve-seat.html\" \/>\n<meta property=\"og:site_name\" content=\"ZECO Valve\" \/>\n<meta property=\"article:published_time\" content=\"2021-12-27T10:09:13+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-10-17T06:11:34+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/PEEK.png\" \/>\n\t<meta property=\"og:image:width\" content=\"884\" \/>\n\t<meta property=\"og:image:height\" content=\"606\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\">\n\t<meta name=\"twitter:data1\" content=\"Jerry\">\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\">\n\t<meta name=\"twitter:data2\" content=\"9 minutos\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/zecovalve.com\/#website\",\"url\":\"https:\/\/zecovalve.com\/\",\"name\":\"ZECO Valve\",\"description\":\"Industrial Ball Valve, Gate Valve and Globe Valve Manufacturer\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/zecovalve.com\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"es\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/zecovalve.com\/thermoplastic-materials-as-valve-seat.html#primaryimage\",\"inLanguage\":\"es\",\"url\":\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/PEEK.png\",\"width\":884,\"height\":606,\"caption\":\"Ball Valve Seats\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/thermoplastic-materials-as-valve-seat.html#webpage\",\"url\":\"https:\/\/zecovalve.com\/thermoplastic-materials-as-valve-seat.html\",\"name\":\"Thermoplastic Materials as Ball Valve Seat & Butterfly Valve Seat | ZECO\",\"isPartOf\":{\"@id\":\"https:\/\/zecovalve.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/zecovalve.com\/thermoplastic-materials-as-valve-seat.html#primaryimage\"},\"datePublished\":\"2021-12-27T10:09:13+00:00\",\"dateModified\":\"2022-10-17T06:11:34+00:00\",\"author\":{\"@id\":\"https:\/\/zecovalve.com\/#\/schema\/person\/f65555145e0ef282ff87649309aba6a3\"},\"breadcrumb\":{\"@id\":\"https:\/\/zecovalve.com\/thermoplastic-materials-as-valve-seat.html#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/zecovalve.com\/thermoplastic-materials-as-valve-seat.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/zecovalve.com\/thermoplastic-materials-as-valve-seat.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"item\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/\",\"url\":\"https:\/\/zecovalve.com\/\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"position\":2,\"item\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/thermoplastic-materials-as-valve-seat.html\",\"url\":\"https:\/\/zecovalve.com\/thermoplastic-materials-as-valve-seat.html\",\"name\":\"Thermoplastic materials as Ball Valve Seat\"}}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/zecovalve.com\/#\/schema\/person\/f65555145e0ef282ff87649309aba6a3\",\"name\":\"Jerry\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","_links":{"self":[{"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/posts\/1037","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/comments?post=1037"}],"version-history":[{"count":0,"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/posts\/1037\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/media\/15947"}],"wp:attachment":[{"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/media?parent=1037"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/categories?post=1037"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/tags?post=1037"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}