{"id":2442,"count":6,"description":"<!-- wp:heading -->\r\n<h2>\u00bfQu\u00e9 es una v\u00e1lvula de retenci\u00f3n Wafer?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLas v\u00e1lvulas antirretorno wafer son v\u00e1lvulas de tuber\u00eda en l\u00ednea que se utilizan para controlar la direcci\u00f3n del flujo de fluido y reducir o evitar por completo el posible reflujo dentro de los sistemas de fontaner\u00eda. Las v\u00e1lvulas de retenci\u00f3n wafer tambi\u00e9n se conocen como v\u00e1lvulas clack, v\u00e1lvulas de reflujo, v\u00e1lvulas antirretorno y v\u00e1lvulas unidireccionales. Este tipo de v\u00e1lvula se ha dise\u00f1ado para eliminar autom\u00e1ticamente el reflujo del caudal de fluido que puede producirse cada vez que se cierra un sistema de proceso. Estas v\u00e1lvulas disponen de un disco abisagrado en forma de aleta (la oblea) que se utiliza para permitir y restringir el flujo de l\u00edquido. Este disco s\u00f3lo se abre en una direcci\u00f3n y se cierra bajo contrapresi\u00f3n para sellar la v\u00e1lvula contra el flujo de fluido opuesto. Las v\u00e1lvulas de retenci\u00f3n Wafer requieren una cantidad m\u00ednima de presi\u00f3n de fluido del sistema para funcionar. La retenci\u00f3n se abre cuando la presi\u00f3n aguas arriba es mayor que la presi\u00f3n aguas abajo y se cierra cuando la presi\u00f3n aguas abajo es mayor que la presi\u00f3n aguas arriba. Las v\u00e1lvulas antirretorno wafer termopl\u00e1sticas s\u00f3lo son aceptables para aplicaciones de l\u00edquidos no compresibles y nunca deben utilizarse para situaciones de tipo neum\u00e1tico, gas o l\u00edquido compresible.<!-- \/wp:paragraph -->\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Ventajas de la v\u00e1lvula de retenci\u00f3n Wafer<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLa v\u00e1lvula de retenci\u00f3n wafer ZECO tiene un dise\u00f1o sencillo, ya que la conexi\u00f3n wafer se denomina as\u00ed y consta de componentes de cuerpo, disco, muelle y pasador de eje. Debido a la corta carrera de cierre de la v\u00e1lvula de retenci\u00f3n wafer y el cierre r\u00e1pido por el resorte, el impacto sobre el golpe de ariete puede reducirse significativamente. La v\u00e1lvula de retenci\u00f3n wafer tambi\u00e9n se puede dividir en v\u00e1lvula de retenci\u00f3n de elevaci\u00f3n tipo wafer, v\u00e1lvula de retenci\u00f3n de placa doble tipo wafer y v\u00e1lvula de retenci\u00f3n de placa simple tipo wafer.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li><strong>Alta resistencia<\/strong>\r\n<ul>\r\n \t<li>Aprovechando el an\u00e1lisis de tensiones, liberan a los usuarios de cualquier preocupaci\u00f3n sobre la resistencia de los controles de obleas fabricados con resina.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Alta resistencia a la corrosi\u00f3n<\/strong>\r\n<ul>\r\n \t<li>Todos los componentes en contacto con el fluido est\u00e1n fabricados con resinas. Adem\u00e1s, los muelles est\u00e1n recubiertos.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Ligero y compacto<\/strong>\r\n<ul>\r\n \t<li>Su peso oscila entre un tercio y un quinto del de las v\u00e1lvulas met\u00e1licas. Con interfaces peque\u00f1as, facilitan el trabajo en las tuber\u00edas.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Reducci\u00f3n de costes<\/strong>\r\n<ul>\r\n \t<li>No se necesitan juntas al entubar. Con tapones integrados, ayudan a reducir costes.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>V\u00e1lvula de retenci\u00f3n Wafer y v\u00e1lvula de retenci\u00f3n Flange, \u00bfcu\u00e1l es mejor?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLas v\u00e1lvulas de retenci\u00f3n Wafer utilizan un disco oscilante para permitir o bloquear el flujo. Su dise\u00f1o permite instalarlas en espacios extremadamente estrechos, donde no puede utilizarse la v\u00e1lvula de retenci\u00f3n con brida. Las v\u00e1lvulas de retenci\u00f3n wafer tienen cuerpos moldeados alrededor de la zona donde se abre el disco. \u00c9sta es la diferencia m\u00e1s importante entre los dos tipos de v\u00e1lvula anteriores.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nWhile at first glance this may just seem like a space issue, the presence of a valve body as opposed to the bare bones wafer check actually makes a big difference in the functionality of the valve. Because flanged check valves are flanged in place, there isn't much room for the disc to open in the pipe line. That means flow is often restricted within the check valve.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nPor el contrario, las v\u00e1lvulas de retenci\u00f3n Wafer tienen un cuerpo moldeado que deja espacio para que el disco se abra completamente, permitiendo as\u00ed el paso del caudal. Como puede imaginar, esto es muy importante si su aplicaci\u00f3n requiere un caudal total. Por este motivo, normalmente ofrecemos v\u00e1lvulas antirretorno wafer para aplicaciones en las que el caudal no es un problema, y v\u00e1lvulas antirretorno oscilantes cuando se requiere una v\u00e1lvula de paso total.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-wafer-check-valve-for-sale\">Venta de v\u00e1lvulas de retenci\u00f3n Wafer<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:columns -->\r\n<div class=\"wp-block-columns\">\r\n\r\n<!-- wp:column -->\r\n<div class=\"wp-block-column\">\r\n\r\n<!-- wp:image {\"align\":\"center\",\"id\":16568,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\r\n<figure class=\"wp-block-image aligncenter size-full\"><img class=\"wp-image-16568\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/wafer-dual-plate-check-valve.jpg\" alt=\"V\u00e1lvula de retenci\u00f3n de doble placa Wafer\" \/><figcaption><a href=\"https:\/\/zecovalve.com\/es\/products\/wafer-dual-plate-check-valve.html\/\">V\u00e1lvula de retenci\u00f3n de doble placa Wafer<em>\/ OBTENGA EL PRECIO DE LA V\u00c1LVULA DE RETENCI\u00d3N DE DOBLE PLACA WAFER &gt;<\/em><\/a><\/figcaption><\/figure>\r\n<!-- \/wp:image -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<a href=\"https:\/\/zecovalve.com\/es\/products\/wafer-dual-plate-check-valve.html\/\">V\u00e1lvula de Retenci\u00f3n de Placa Doble Wafer La estructura de la v\u00e1lvula de retenci\u00f3n de placa doble wafer ZECO es que el disco est\u00e1 junto con el pasador en la posici\u00f3n central del cuerpo para girar, dimensiones cortas de la estructura, peque\u00f1o volumen.<\/a> <a href=\"https:\/\/zecovalve.com\/es\/products\/wafer-dual-plate-check-valve.html\/\">OBTENER PRECIO DE V\u00c1LVULA &gt;<\/a>\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<\/div>\r\n<!-- \/wp:column -->\r\n\r\n<!-- wp:column -->\r\n<div class=\"wp-block-column\">\r\n\r\n<!-- wp:image {\"align\":\"center\",\"id\":16783,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\r\n<figure class=\"wp-block-image aligncenter size-full\"><img class=\"wp-image-16783\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/wafer-type-nrv-1.jpg\" alt=\"\" \/><figcaption><a href=\"https:\/\/zecovalve.com\/es\/products\/wafer-type-nrv.html\/\">Tipo de oblea Nrv<em>\/ OBTENER PRECIO DE V\u00c1LVULA DE RETENCI\u00d3N TIPO WAFER &gt;<\/em><\/a><\/figcaption><\/figure>\r\n<!-- \/wp:image -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<a href=\"https:\/\/zecovalve.com\/es\/products\/wafer-type-nrv.html\/\">NRV tipo wafer La NRV tipo wafer tiene una dimensi\u00f3n cara a cara m\u00e1s corta y un dise\u00f1o de placa doble, las opciones de conexi\u00f3n final incluyen tipo wafer, tipo lug y tipo brida doble, y est\u00e1n disponibles en tama\u00f1o de 2 a 60 y en clasificaciones de presi\u00f3n de ASME clase 150 a 2500. OBTENER PRECIO DE V\u00c1LVULA &gt;<\/a>\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<\/div>\r\n<!-- \/wp:column -->\r\n\r\n<\/div>\r\n<!-- \/wp:columns -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-specifications-of-wafer-check-valves\">Especificaciones de las v\u00e1lvulas antirretorno wafer<\/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>Tama\u00f1os<\/td>\r\n<td>1\" to 60\" (25mm to 1500mm)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Temperatura<\/td>\r\n<td>De criog\u00e9nico a alta temperatura (seg\u00fan el modelo seleccionado)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Presi\u00f3n de funcionamiento m\u00e1xima admisible<\/td>\r\n<td>API 594 (150, 300, 600, 900, 1500, 2500)\r\nASME (125, 150, 300)\r\nPN (10, 16, 25, 40)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Capacidad de cierre<\/td>\r\n<td>Cero fugas<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Materiales de la carrocer\u00eda<\/td>\r\n<td>ASTM A 126 CLB, ASTM A 395, ASTM A 216 WCB, ASTM A 351 CF8M, Titanio<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Materiales del asiento<\/td>\r\n<td>BUNA-N, EPDM, A240 - 304 (Inserted or Integral), PFTE, Viton<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Material del disco<\/td>\r\n<td>SS316 de serie (o de grado superior)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Estilo de carrocer\u00eda<\/td>\r\n<td>Oblea, Brida, RTJ<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Norma de dise\u00f1o<\/td>\r\n<td>API 594, ASME B16.34<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Cara a cara<\/td>\r\n<td>ANSI, API 594<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Norma de ensayo<\/td>\r\n<td>API 598, ASME B16.34<\/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 id=\"h-buy-featured-wafer-check-valve-from-zeco-valve\">Comprar V\u00e1lvula de retenci\u00f3n wafer destacada de ZECO Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nCuando ZECO ayude a los usuarios a elegir la v\u00e1lvula de retenci\u00f3n wafer para tuber\u00edas, les dar\u00e1 el esquema correspondiente. La v\u00e1lvula de retenci\u00f3n wafer se instala normalmente en la tuber\u00eda que puede producir un golpe de ariete. Debido a sus caracter\u00edsticas estructurales, la v\u00e1lvula de retenci\u00f3n wafer puede eliminar eficazmente el golpe de ariete generado por el contraflujo del medio. Otra caracter\u00edstica de la v\u00e1lvula de retenci\u00f3n wafer es que no necesita conexi\u00f3n de brida, ahorrando espacio de instalaci\u00f3n. S\u00f3lo necesita ser instalada en medio de dos bridas de tuber\u00eda, y luego fijada con pernos.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nZECO Valve is specialized in the wafer check valve manufacturers and carries on the design and production strictly in accordance with API 594 standard, the size range of products made from 1\/2 \"to 88\", nominal pressure from 150 lb to 2500 lb. Main valve material includes carbon steel, low-temperature steel, dual-phase steel, titanium alloy, aluminum bronze, Inconel, Monel alloy and other metal materials, products widely used in oil and gas, in the field of global energy, chemical and other industries.\r\n\r\n<!-- \/wp:paragraph -->","link":"https:\/\/zecovalve.com\/es\/categoria-de-productos\/check-valve\/wafer-check-valve","name":"V\u00e1lvula de retenci\u00f3n Wafer","slug":"wafer-check-valve","taxonomy":"product_cat","parent":2455,"meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Wafer Check Valve - Check Valve Wafer Ttype Manufacturers | 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\/categoria-de-productos\/check-valve\/wafer-check-valve\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Wafer Check Valve - Check Valve Wafer Ttype Manufacturers | ZECO\" \/>\n<meta property=\"og:description\" content=\"What is a Wafer Check Valve?  Wafer check valves are in-line piping valves used to control fluid flow direction and reduce or fully prevent possible back flow within plumbing systems. Wafer check valves are also known as clack valves, reflux valves, non return valves and one way valves. This valve type has been engineered to automatically eliminate the fluid flow reflux that can occur whenever a process system is shutdown. These valves feature a hinged, flap-like disk (the wafer) that is used to allow and restrict liquid flow. This disk only opens in one direction and closes shut under back pressure to seal the valve against opposing fluid flow. Wafer check valves require a minimum amount of system fluid pressure to operate. The check opens whenever upstream pressure is greater than downstream pressure and closes whenever downstream pressure exceeds upstream. Thermoplastic wafer check valves are acceptable for non compressible liquid applications only and should never be used for pneumatic, gas or compressible liquid type scenarios.  Advantages of Wafer Check Valve  ZECO wafer check valve is simple in design because the wafer connection is named and consists of body, disc, spring and shaft pin components. Due to the short closing stroke of the wafer check valve and the quick closing by the spring, the impact on the water hammer can be significantly reduced. The wafer check valve can also be divided into\u00a0wafer type\u00a0lifting check valve, wafer type dual plate check valve and wafer type single plate\u00a0check valve.  High strength Capitalizing on the stress analysis, they relieve users of any concerns about the strength of resin-made wafer checks.  High corrosion resistance All components contacting fluid are made of resins. In addition, springs are coated.  Lightweight and compact Their weights are about one third to one fifth those of metal valves. With small interfaces, they facilitate piping work.  Cost reduction No gaskets are needed when piping. With integrated stoppers, they help reduce costs.   Wafer Check Valve &amp; Flange Check Valve, Which is better?  Wafer check valves use a swinging disc to allow or block flow. Their design allows them to be fitted in extremely tight spaces \u2013 where the flanged check valve can not be used. The wafer check valves have molded bodies around the area where the disc opens up. This is the most important difference between the above two types of valve.  While at first glance this may just seem like a space issue, the presence of a valve body as opposed to the bare bones wafer check actually makes a big difference in the functionality of the valve. Because flanged check valves are flanged in place, there isn&#8217;t much room for the disc to open in the pipe line. That means flow is often restricted within the check valve.  Wafer check valves on the contrary have a molded body that creates room for the disc to swing open fully, thus allowing full flow. As you can imagine, this is very important if your application requires full flow. For this reason, we usually offer wafer check valves for applications where flow is not an issue, and swing check valves when a full port valve is required.  Wafer Check Valve for Sale    Wafer Dual Plate Check Valve\/ GET WAFER DUAL PLATE CHECK VALVE PRICE &gt;  Wafer Dual Plate Check Valve The structure of ZECO wafer dual plate check valve is that the disc is along with the pin at the center position of the body to swing, short structure dimensions, small volume. GET VALVE PRICE &gt;    Wafer Type Nrv\/ GET WAFER TYPE CHECK VALVE PRICE &gt;  Wafer Type Nrv Wafer type NRV has a shorter face-to-face dimension and dual plate design, the end connection options include wafer type, lug type and double-flange type, and are available in size from 2 to 60 and in pressure ratings from ASME class 150 through 2500. GET VALVE PRICE &gt;    Specifications of Wafer Check Valves    Size Range 1&#8243; to 60&#8243; (25mm to 1500mm)  Temperature Range Cryogenic to High Temperature (Pending Model Selected)  Maximum Allowable Operating Pressure API 594 (150, 300, 600, 900, 1500, 2500) ASME (125, 150, 300) PN (10, 16, 25, 40)  Shutoff Rating Zero Leakage  Body Materials ASTM A 126 CLB, ASTM A 395, ASTM A 216 WCB, ASTM A 351 CF8M, Titanium  Seat Materials BUNA-N, EPDM, A240 &#8211; 304 (Inserted or Integral), PFTE, Viton  Disc Material SS316 as standard (or Higher Grade)  Body Style Wafer, Flanged, RTJ  Design Standard API 594, ASME B16.34  Face to Face ANSI, API 594  Testing Standard API 598, ASME B16.34    Buy\u00a0Featured Wafer Check Valve from ZECO Valve  When ZECO helps users to choose the wafer check valve for pipelines, it will give the corresponding scheme. The wafer check valve is usually installed in the pipeline that may produce a water hammer. Because of its structural characteristics, the wafer check valve can effectively eliminate the water hammer generated by the counterflow of medium. Another feature of the wafer check valve is that it does not need flange connection, saving installation space. It only needs to be installed in the middle of two pipe flanges, and then fixed with bolts.  ZECO Valve is specialized in the wafer check valve manufacturers and carries on the design and production strictly in accordance with API 594 standard, the size range of products made from 1\/2 &#8220;to 88&#8221;, nominal pressure from 150 lb to 2500 lb. Main valve material includes carbon steel, low-temperature steel, dual-phase steel, titanium alloy, aluminum bronze, Inconel, Monel alloy and other metal materials, products widely used in oil and gas, in the field of global energy, chemical and other industries.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/es\/categoria-de-productos\/check-valve\/wafer-check-valve\" \/>\n<meta property=\"og:site_name\" content=\"ZECO Valve\" \/>\n<meta property=\"og:image\" content=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/wafer-dual-plate-check-valve.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\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\":\"CollectionPage\",\"@id\":\"https:\/\/zecovalve.com\/product-category\/check-valve\/wafer-check-valve#webpage\",\"url\":\"https:\/\/zecovalve.com\/product-category\/check-valve\/wafer-check-valve\",\"name\":\"Wafer Check Valve - Check Valve Wafer Ttype Manufacturers | ZECO\",\"isPartOf\":{\"@id\":\"https:\/\/zecovalve.com\/#website\"},\"breadcrumb\":{\"@id\":\"https:\/\/zecovalve.com\/product-category\/check-valve\/wafer-check-valve#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/zecovalve.com\/product-category\/check-valve\/wafer-check-valve\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/zecovalve.com\/product-category\/check-valve\/wafer-check-valve#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\/product-category\/check-valve\",\"url\":\"https:\/\/zecovalve.com\/product-category\/check-valve\",\"name\":\"Check Valve\"}},{\"@type\":\"ListItem\",\"position\":3,\"item\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/product-category\/check-valve\/wafer-check-valve\",\"url\":\"https:\/\/zecovalve.com\/product-category\/check-valve\/wafer-check-valve\",\"name\":\"Wafer Check Valve\"}}]}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","_links":{"self":[{"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/product_cat\/2442","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/product_cat"}],"about":[{"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/taxonomies\/product_cat"}],"up":[{"embeddable":true,"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/product_cat\/2455"}],"wp:post_type":[{"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/product?product_cat=2442"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}