{"id":1884,"count":8,"description":"\r\n\r\n\r\n\r\nOBTENER INFORMACI\u00d3N EN WIKIPEDIA DE LA V\u00c1LVULA DE COMPUERTA<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n

Construcci\u00f3n de v\u00e1lvulas de compuerta<\/h2>\r\n\r\n\r\n\r\n\r\nCommon gate valves are actuated by a threaded stem that connects the actuator (e.g. handwheel or motor) to the gate. They are characterized as having either a rising or a non-rising stem, depending on which end of the stem is threaded. Rising stems are fixed to the gate and rise and lower together as the valve is operated, providing a visual indication of valve position. The actuator is attached to a nut that is rotated around the threaded stem to move it. Non rising stem valves are fixed to, and rotate with, the actuator, and are threaded into the gate. They may have a pointer threaded onto the stem to indicate valve position since the gate's motion is concealed inside the valve. Non rising stems are used where vertical space is limited.\r\n\r\n\r\n\r\n\r\n\r\nLas v\u00e1lvulas de compuerta se pueden accionar manualmente (volante) o el\u00e9ctricamente utilizando un motor de alto torque.\r\n\r\n\r\n\r\n\r\n\r\nLa puerta corredera (disco) puede tener forma de cu\u00f1a (c\u00f3nica) o paralela. Los dise\u00f1os con forma de cu\u00f1a incluyen dise\u00f1os de cu\u00f1a s\u00f3lida, flexible y dividida.\r\n\r\n\r\n\r\n\r\n\r\nLos anillos de asiento se utilizan para facilitar la sustituci\u00f3n de un asiento desgastado o con fugas. Los anillos de asiento tienen una rosca en el reverso que se puede atornillar en el cuerpo de la v\u00e1lvula principal; la superficie plana en el lado opuesto es el \u00e1rea de la superficie de asiento que presiona contra el disco. Si no se utilizan anillos de asiento, es posible mecanizar un asiento plano en el propio cuerpo de la v\u00e1lvula principal; desafortunadamente, esto hace que el reemplazo del asiento sea imposible y el asiento s\u00f3lo se puede mecanizar unas pocas veces antes de que sea necesario reemplazar toda la v\u00e1lvula.\r\n\r\n\r\n\r\n\r\n\r\nLos casquetes de las v\u00e1lvulas de compuerta suelen estar construidos de hierro fundido. El hierro fundido es quebradizo y esto hace que el cap\u00f3 sea propenso a agrietarse. Se debe tener especial cuidado al manipular y mantener v\u00e1lvulas con casquetes de hierro fundido.\r\n\r\n\r\n\r\n\r\n\r\nA medida que el v\u00e1stago penetra a trav\u00e9s del casquete de la v\u00e1lvula, es necesario instalar un casquillo de sellado para evitar que se produzcan fugas a trav\u00e9s del espacio entre el v\u00e1stago y el casquete; El sellado generalmente se logra utilizando material de empaque fibroso.\r\n\r\n\r\n\r\n\r\n\r\nSe instalan bridas en el lado de succi\u00f3n y descarga de la v\u00e1lvula para que las tuber\u00edas se puedan conectar f\u00e1cilmente.\r\n\r\n\r\n\r\n\r\n

Tipos de v\u00e1lvulas de compuerta<\/h2>\r\n\r\n\r\n\r\n\r\nLa puerta viene en varios dise\u00f1os y tecnolog\u00edas para producir un sellado eficaz para diferentes aplicaciones.\r\n\r\n\r\n\r\n\r\n\r\nV\u00e1lvula de guillotina\r\n\r\n\r\n\r\n\r\n\r\nUna v\u00e1lvula de guillotina se utiliza para fluidos espesos y s\u00f3lidos secos a granel. La puerta es s\u00f3lo una pieza de metal, que normalmente tiene la punta de un cuchillo. Estas v\u00e1lvulas son autolimpiantes ya que pasan por los anillos del asiento cada vez que se abren y cierran.\r\n\r\n\r\n\r\n\r\n

V\u00e1lvula de compuerta de cu\u00f1a<\/h3>\r\n\r\n\r\n\r\n\r\nA wedge gate valve has a gate in the shape of a wedge that sits on two inclined seats. In addition to the primary force created by fluid pressure, a high wedging force on the seats created by the stem tightening assists with the sealing. The wedge-shaped gate does not stick to the seat in case of high fluid differential pressure and has an increased service life due to less \"rubbing\" on the seats. However, wedge-shaped gate valves have an additional compression load on the seats that may result in thermal binding and restricted valve opening due to expansion.\r\n\r\n\r\n\r\n\r\n

V\u00e1lvula de compuerta deslizante paralela<\/h3>\r\n\r\n\r\n\r\n\r\nUna v\u00e1lvula de compuerta deslizante paralela tiene una compuerta plana y asientos paralelos a ella. Las v\u00e1lvulas de compuerta corrediza paralela utilizan presi\u00f3n de l\u00ednea y posicionamiento para crear un sello herm\u00e9tico. Las puertas planas se componen de dos piezas y tienen un resorte en el medio. El resorte empuja las piezas hacia los asientos para mejorar el sellado. Debido a su dise\u00f1o inherente, las v\u00e1lvulas de compuerta paralela tienen una ventaja de seguridad en aplicaciones de mayor temperatura. Adem\u00e1s, dado que no hay acci\u00f3n de acu\u00f1amiento en las puertas paralelas, los pares de cierre son comparativamente m\u00e1s peque\u00f1os, lo que da como resultado actuadores m\u00e1s peque\u00f1os y menos costosos o menos esfuerzo manual. Las puertas paralelas, gracias a su deslizamiento, mantienen alejada la suciedad de las superficies de los asientos.\r\n\r\n\r\n\r\n\r\n

V\u00e1lvula de compuerta de losa<\/h3>\r\n\r\n\r\n\r\n\r\nLas compuertas de losa, tambi\u00e9n llamadas v\u00e1lvulas de compuerta pasante, son compuertas de una sola unidad que incluyen un orificio del tama\u00f1o de un orificio. En estado abierto, el orificio est\u00e1 alineado con los anillos de dos asientos. Esta alineaci\u00f3n crea un flujo suave con m\u00ednima turbulencia. Este dise\u00f1o \u00fanico permite una p\u00e9rdida m\u00ednima de presi\u00f3n en el sistema y es perfecto para el transporte de petr\u00f3leo crudo y l\u00edquidos de gas natural (NGL). Los asientos de las v\u00e1lvulas permanecen limpios. Sin embargo, la cavidad del disco puede capturar material extra\u00f1o. Por lo tanto, la cavidad normalmente tiene un tap\u00f3n incorporado con fines de mantenimiento para drenar el material extra\u00f1o acumulado.\r\n\r\n\r\n\r\n\r\n

V\u00e1lvula de compuerta de expansi\u00f3n paralela<\/h3>\r\n\r\n\r\n\r\n\r\nExpanding gate valves have two slab gates matched together that provide sealing through the mechanical expansion of the gate, as seen in Figure 5. When lifted, both of the slab gate's cavities allow the media to flow. The upward force on one slab and the stoppage of the second slab, by a step in the valve body, allows for outward mechanical expansion for a proper seal. When closed, the slab gates block the media flow, and the downward force (stem) on one slab and upward force (step in valve body) allows for outward mechanical expansion for a proper seal.\r\n\r\n\r\n\r\n\r\n\r\nEstas v\u00e1lvulas proporcionan un sello eficaz simult\u00e1neamente para los asientos aguas arriba y aguas abajo. Este sello los hace ideales para aplicaciones como v\u00e1lvulas de aislamiento en plantas de energ\u00eda, v\u00e1lvulas de bloqueo en sistemas de procesos y v\u00e1lvulas de alta temperatura en refiner\u00edas.\r\n\r\n\r\n\r\n\r\n

V\u00e1lvulas de compuerta con asiento met\u00e1lico versus v\u00e1lvulas con asiento el\u00e1stico<\/h2>\r\n\r\n\r\n\r\n\r\nAntes de que se introdujera en el mercado la v\u00e1lvula de compuerta con asiento el\u00e1stico, se usaban ampliamente v\u00e1lvulas de compuerta con una cu\u00f1a con asiento met\u00e1lico. El dise\u00f1o de cu\u00f1a c\u00f3nica y los dispositivos de sellado angulares de una cu\u00f1a con asiento met\u00e1lico requieren una depresi\u00f3n en el fondo de la v\u00e1lvula para asegurar un cierre herm\u00e9tico. Para ello se introduce arena y guijarros en el taladro. El sistema de tuber\u00edas nunca estar\u00e1 completamente libre de impurezas, independientemente de qu\u00e9 tan a fondo se lave la tuber\u00eda durante la instalaci\u00f3n o reparaci\u00f3n. Por lo tanto, cualquier cu\u00f1a de metal eventualmente perder\u00e1 su capacidad de ser herm\u00e9tica.\r\n\r\n\r\n\r\n\r\n\r\nUna v\u00e1lvula de compuerta con asiento el\u00e1stico tiene un fondo plano que permite el paso libre de arena y guijarros en la v\u00e1lvula. Si pasan impurezas cuando la v\u00e1lvula se cierra, la superficie de goma se cerrar\u00e1 alrededor de las impurezas mientras la v\u00e1lvula est\u00e1 cerrada. Un compuesto de caucho de alta calidad absorbe las impurezas cuando la v\u00e1lvula se cierra, y las impurezas se eliminar\u00e1n cuando la v\u00e1lvula se abra nuevamente. La superficie de goma recuperar\u00e1 su forma original asegurando un sellado herm\u00e9tico.\r\n\r\n\r\n\r\n\r\n\r\nLa gran mayor\u00eda de las v\u00e1lvulas de compuerta tienen asiento el\u00e1stico; sin embargo, en algunos mercados todav\u00eda se solicitan v\u00e1lvulas de compuerta con asiento met\u00e1lico, por lo que siguen formando parte de nuestra gama para el suministro de agua y el tratamiento de aguas residuales.\r\n\r\n","link":"https:\/\/zecovalve.com\/es\/tag\/gate-valve-wikipedia","name":"V\u00e1lvula de compuerta Wikipedia","slug":"gate-valve-wikipedia","taxonomy":"post_tag","meta":[],"yoast_head":"\nGate Valve Wikipedia - Gate Valve Suppliers | ZECO Valve<\/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\/tag\/gate-valve-wikipedia\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Gate Valve Wikipedia - Gate Valve Suppliers | ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"GET GATE VALVE WIKIPEDIA INFORMATION Construction of Gate Valves Common gate valves are actuated by a threaded stem that connects the actuator (e.g. handwheel or motor) to the gate. They are characterized as having either a rising or a non-rising stem, depending on which end of the stem is threaded. Rising stems are fixed to the gate and rise and lower together as the valve is operated, providing a visual indication of valve position. The actuator is attached to a nut that is rotated around the threaded stem to move it. Non rising stem valves are fixed to, and rotate with, the actuator, and are threaded into the gate. They may have a pointer threaded onto the stem to indicate valve position since the gate’s motion is concealed inside the valve. Non rising stems are used where vertical space is limited. Gate valves can be actuated manually (handwheel) or electrically using a high torque motor. The sliding gate (disc) can be wedge-shaped (tapered) or parallel-shaped. Wedge shape designs include solid, flexible, and split wedge designs. Seat rings are used to make the replacement of a worn\/leaking seat easier. Seat rings have a screw thread on the reverse side which can be screwed into the main valve body, the flat surface on the opposite side is the seating surface area that presses against the disc. If seat rings are not used, it is possible to machine a flat seat on the main valve body itself, unfortunately, this makes replacing the seat impossible and the seat can only be machined a few times before the entire valve must be replaced. Gate valve bonnets are often constructed of cast iron. Cast iron is brittle and this makes the bonnet prone to cracking. Special care should be taken when handling and maintaining valves with cast iron bonnets. As the stem penetrates through the valve bonnet, it is necessary to install a sealing gland to prevent leakage from occurring through the gap between the stem and bonnet; sealing is usually achieved using the fibrous packing material. Flanges are installed on the suction and discharge side of the valve so that piping can be easily connected. Gate Valve Types The gate comes in various designs and technologies to produce effective sealing for differing applications. Knife gate valve A knife gate valve is used for thick fluids and dry bulk solids. The gate is only one piece of metal, which is typically pointed like a knife. These valves are self-cleaning as they pass the seat rings every time they open and close. Wedge Gate Valve A wedge gate valve has a gate in the shape of a wedge that sits on two inclined seats. In addition to the primary force created by fluid pressure, a high wedging force on the seats created by the stem tightening assists with the sealing. The wedge-shaped gate does not stick to the seat in case of high fluid differential pressure and has an increased service life due to less “rubbing” on the seats. However, wedge-shaped gate valves have an additional compression load on the seats that may result in thermal binding and restricted valve opening due to expansion. Parallel Slide Gate Valve A parallel slide gate valve has a flat gate and seats parallel to it. Parallel slide gate valves use line pressure and positioning to make a tight seal. Flat gates consist of two pieces and have a spring in the middle. The spring pushes the pieces towards the seats for enhanced sealing. Due to their inherent design, parallel gate valves have a safety advantage in higher-temperature applications. Furthermore, since there is no wedging action in parallel gates, closing torques are comparatively smaller, resulting in smaller, less expensive actuators or less manual effort. Due to their sliding into position, parallel gates keep dirt away from the seating surfaces. Slab Gate Valve Slab gates, also called through-conduit gate valves, are one-unit gates that include a bore-size hole. The bore is in line with the two-seat rings in the open state. This alignment creates a smooth flow with minimal turbulence. This unique design allows for minimal pressure loss in the system and is perfect for the transportation of crude oil and natural gas liquids (NGLs). The valve seats remain clean. However, the disc cavity can capture foreign material. Therefore, the cavity typically has a built-in plug for maintenance purposes of draining the accumulated foreign material. Parallel Expanding Gate Valve Expanding gate valves have two slab gates matched together that provide sealing through the mechanical expansion of the gate, as seen in Figure 5. When lifted, both of the slab gate’s cavities allow the media to flow. The upward force on one slab and the stoppage of the second slab, by a step in the valve body, allows for outward mechanical expansion for a proper seal. When closed, the slab gates block the media flow, and the downward force (stem) on one slab and upward force (step in valve body) allows for outward mechanical expansion for a proper seal. These valves provide an effective seal simultaneously for both upstream and downstream seats. This seal makes them ideal for applications like isolation valves in power plants, block valves in process systems, and high-temperature valves in refineries. Metal seated vs Resilient Seated Gate Valves Before the resilient seated gate valve was introduced to the market, gate valves with a metal seated wedge were widely used. The conical wedge design and angular sealing devices of a metal seated wedge require a depression in the valve bottom to ensure a tight closure. Herewith, sand and pebbles are embedded in the bore. The pipe system will never be completely free from impurities regardless of how thoroughly the pipe is flushed upon installation or repair. Thus, any metal wedge will eventually lose its ability to be drop-tight. A resilient seated gate valve has a plain valve bottom allowing free passage for sand and pebbles in the valve. If impurities pass as the valve closes, the rubber surface will close around the impurities while the valve is closed. A high-quality rubber compound absorbs the impurities as the valve closes, and the impurities will be flushed away when the valve is opened again. The rubber surface will regain its original shape by securing a drop-tight sealing. The vast majority of gate valves are resilient seated, however, metal seated gate valves are still requested in some markets, so they are still part of our range for water supply and wastewater treatment.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/es\/tag\/gate-valve-wikipedia\" \/>\n<meta property=\"og:site_name\" content=\"ZECO Valve\" \/>\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\/tag\/gate-valve-wikipedia#webpage\",\"url\":\"https:\/\/zecovalve.com\/tag\/gate-valve-wikipedia\",\"name\":\"Gate Valve Wikipedia - Gate Valve Suppliers | ZECO Valve\",\"isPartOf\":{\"@id\":\"https:\/\/zecovalve.com\/#website\"},\"breadcrumb\":{\"@id\":\"https:\/\/zecovalve.com\/tag\/gate-valve-wikipedia#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/zecovalve.com\/tag\/gate-valve-wikipedia\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/zecovalve.com\/tag\/gate-valve-wikipedia#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\/tag\/gate-valve-wikipedia\",\"url\":\"https:\/\/zecovalve.com\/tag\/gate-valve-wikipedia\",\"name\":\"Gate Valve Wikipedia\"}}]}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","_links":{"self":[{"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/tags\/1884","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/tags"}],"about":[{"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/taxonomies\/post_tag"}],"wp:post_type":[{"href":"https:\/\/zecovalve.com\/es\/wp-json\/wp\/v2\/posts?tags=1884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}