{"id":4720,"date":"2024-07-15T12:27:33","date_gmt":"2024-07-15T12:27:33","guid":{"rendered":"https:\/\/sinovalveco.com\/product\/lubricated-plug-valve\/"},"modified":"2024-08-16T13:18:57","modified_gmt":"2024-08-16T13:18:57","slug":"lubricated-plug-valve","status":"publish","type":"product","link":"https:\/\/ntgdvalve.com\/pt\/lubricated-plug-valve\/","title":{"rendered":"V\u00e1lvula de plugue lubrificada"},"content":{"rendered":"<p><span style=\"font-size: 14pt;\">A v\u00e1lvula de plugue lubrificada pode ser dividida em v\u00e1lvulas de plugue lubrificadas convencionais e v\u00e1lvulas de plugue balanceadas por press\u00e3o. A graxa especial \u00e9 injetada da parte superior do corpo do plugue entre o orif\u00edcio do cone da v\u00e1lvula e o corpo do plugue, formando uma pel\u00edcula de \u00f3leo para reduzir o torque de abertura e fechamento da v\u00e1lvula, aumentar a veda\u00e7\u00e3o e a vida \u00fatil. A press\u00e3o operacional pode ser de at\u00e9 420 MPa, com uma temperatura operacional m\u00e1xima de 325 \u2103 e um tamanho m\u00e1ximo de 600 mm.<\/span><\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-post-1169 wp-image-1575 entered lazyloaded\" src=\"https:\/\/i0.wp.com\/www.ntgdvalve.com\/wp-content\/uploads\/2020\/07\/image007-1.png\" alt=\"V\u00e1lvula de plugue de equil\u00edbrio de press\u00e3o\" width=\"320\" height=\"343\" data-lazy-src=\"https:\/\/i0.wp.com\/www.ntgdvalve.com\/wp-content\/uploads\/2020\/07\/image007-1.png\" data-ll-status=\"loaded\" \/><\/p>\n<h4><\/h4>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabela de conte\u00fado\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Alternar<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #0a0a0a;color:#0a0a0a\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #0a0a0a;color:#0a0a0a\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/ntgdvalve.com\/pt\/lubricated-plug-valve\/#1_Conventional_oil_lubricated_plug_valve\" >1. V\u00e1lvula de buj\u00e3o convencional lubrificada a \u00f3leo<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/ntgdvalve.com\/pt\/lubricated-plug-valve\/#2_Pressure_balanced_lubricated_plug_valve\" >2. V\u00e1lvula de plugue lubrificada com balanceamento de press\u00e3o<\/a><\/li><\/ul><\/nav><\/div>\n<h4><span class=\"ez-toc-section\" id=\"1_Conventional_oil_lubricated_plug_valve\"><\/span><span id=\"1_Conventional_oil_lubricated_plug_valve\"><span style=\"font-size: 18pt;\"><strong><span style=\"color: #0000ff;\">1. V\u00e1lvula de buj\u00e3o convencional lubrificada a \u00f3leo<\/span><\/strong><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-size: 14pt;\">A. Para a v\u00e1lvula de plugue lubrificada com sede met\u00e1lica convencional, a posi\u00e7\u00e3o de instala\u00e7\u00e3o do cone do plugue \u00e9 positiva. Para reduzir o atrito entre o corpo da v\u00e1lvula e a superf\u00edcie de veda\u00e7\u00e3o do plugue, a v\u00e1lvula geralmente usa a estrutura de veda\u00e7\u00e3o da sede de lubrifica\u00e7\u00e3o com graxa de veda\u00e7\u00e3o. O \u00f3leo de veda\u00e7\u00e3o de alta press\u00e3o injetado pelo bocal de \u00f3leo de alta press\u00e3o forma um anel de veda\u00e7\u00e3o de alta press\u00e3o ao redor do plugue, ou seja, h\u00e1 uma camada de filme de \u00f3leo entre o corpo da v\u00e1lvula e a superf\u00edcie de veda\u00e7\u00e3o do cone do plugue, que pode ser vedado e lubrificado, e f\u00e1cil de abrir e fechar.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">B. Para reduzir ainda mais o torque de abertura e fechamento da v\u00e1lvula de plugue lubrificada, geralmente \u00e9 usado o m\u00e9todo de redu\u00e7\u00e3o do di\u00e2metro do plugue, portanto, a v\u00e1lvula de plugue lubrificada geralmente usa um caminho de fluxo retangular. Esse m\u00e9todo aumenta a resist\u00eancia do fluido da v\u00e1lvula de plugue e, ao mesmo tempo, reduz o torque de abertura e fechamento da v\u00e1lvula de plugue.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">C. A parte de veda\u00e7\u00e3o do cone do plugue \u00e9 soldada com material de liga STL ou adota a tecnologia de endurecimento de superf\u00edcie para aumentar a resist\u00eancia ao desgaste e \u00e0 corros\u00e3o da superf\u00edcie de veda\u00e7\u00e3o, e a vida \u00fatil \u00e9 longa.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">D. A superf\u00edcie do cone da torneira \u00e9 finamente retificada at\u00e9 a superf\u00edcie espelhada, e a superf\u00edcie de veda\u00e7\u00e3o do corpo da v\u00e1lvula \u00e9 retificada, o que reduz o torque de abertura e fechamento.<\/span><\/p>\n<h4><\/h4>\n<h4><span class=\"ez-toc-section\" id=\"2_Pressure_balanced_lubricated_plug_valve\"><\/span><span id=\"2_Pressure_balanced_lubricated_plug_valve\"><span style=\"font-size: 18pt;\"><strong><span style=\"color: #0000ff;\">2. V\u00e1lvula de plugue lubrificada com balanceamento de press\u00e3o<\/span><\/strong><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-size: 14pt;\">Para reduzir o torque das v\u00e1lvulas de plugue convencionais lubrificadas com sede met\u00e1lica, as v\u00e1lvulas de plugue lubrificadas com balanceamento de press\u00e3o s\u00e3o frequentemente usadas. Al\u00e9m das caracter\u00edsticas das v\u00e1lvulas de plugue lubrificadas a \u00f3leo convencionais, as v\u00e1lvulas de plugue balanceadas por press\u00e3o tamb\u00e9m t\u00eam as seguintes caracter\u00edsticas:<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">A. O cone do plugue da v\u00e1lvula de plugue com lubrifica\u00e7\u00e3o balanceada por press\u00e3o \u00e9 montado em uma posi\u00e7\u00e3o invertida. H\u00e1 uma v\u00e1lvula de reten\u00e7\u00e3o na parte superior do cone do plugue. Quando a v\u00e1lvula \u00e9 fechada, devido \u00e0 diferen\u00e7a na \u00e1rea de corte superior e inferior do cone do plugue, o \u00f3leo de veda\u00e7\u00e3o de alta press\u00e3o injetado faz com que o corpo do plugue seja levantado para cima, de modo que o corpo do plugue e a superf\u00edcie de veda\u00e7\u00e3o da v\u00e1lvula possam ser mais bem vedados.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">B. No momento em que a v\u00e1lvula \u00e9 aberta, a press\u00e3o na c\u00e2mara inferior do corpo da v\u00e1lvula \u00e9 equilibrada com a press\u00e3o m\u00e9dia na tubula\u00e7\u00e3o. O \u00f3leo de veda\u00e7\u00e3o de alta press\u00e3o na c\u00e2mara superior faz com que o corpo do plugue seja empurrado para baixo, e uma pequena folga aparece entre o cone do plugue e a superf\u00edcie de veda\u00e7\u00e3o do corpo da v\u00e1lvula, e o torque do corpo do plugue em rota\u00e7\u00e3o \u00e9 efetivamente reduzido.<\/span><\/p>\n<p><span style=\"font-size: 14pt;\">C. Em condi\u00e7\u00f5es de alta temperatura, a expans\u00e3o t\u00e9rmica do plugue pode ser absorvida por sua subida e descida. A v\u00e1lvula de plugue lubrificada a \u00f3leo, embora o uso de lubrifica\u00e7\u00e3o a \u00f3leo possa reduzir adequadamente o torque de abertura e fechamento, pode causar polui\u00e7\u00e3o do meio. Portanto, o lubrificante selado \u00e9 selecionado de acordo com as condi\u00e7\u00f5es reais de opera\u00e7\u00e3o.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>\u203b Lubrificado a \u00f3leo, balan\u00e7a de press\u00e3o<br \/>\n\u203b Faixa de tamanho: NPS 2 a NPS 32<br \/>\n\u203b Faixa de press\u00e3o: 150LB a 2500LB<br \/>\n\u203b Projeto STD: API599\/ API6D<br \/>\n\u203b V\u00e1lvula de plugue lubrificada Fabricante e fornecedor<\/p>","protected":false},"featured_media":6537,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_eb_attr":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[92],"product_tag":[],"class_list":["post-4720","product","type-product","status-publish","has-post-thumbnail","product_cat-plug-valve","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","featured","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/ntgdvalve.com\/pt\/wp-json\/wp\/v2\/product\/4720","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ntgdvalve.com\/pt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ntgdvalve.com\/pt\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/ntgdvalve.com\/pt\/wp-json\/wp\/v2\/comments?post=4720"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ntgdvalve.com\/pt\/wp-json\/wp\/v2\/media\/6537"}],"wp:attachment":[{"href":"https:\/\/ntgdvalve.com\/pt\/wp-json\/wp\/v2\/media?parent=4720"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ntgdvalve.com\/pt\/wp-json\/wp\/v2\/product_brand?post=4720"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ntgdvalve.com\/pt\/wp-json\/wp\/v2\/product_cat?post=4720"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ntgdvalve.com\/pt\/wp-json\/wp\/v2\/product_tag?post=4720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}