{"id":16137,"date":"2022-06-19T14:02:17","date_gmt":"2022-06-19T14:02:17","guid":{"rendered":"https:\/\/zecovalve.com\/?p=16137"},"modified":"2022-08-11T12:26:52","modified_gmt":"2022-08-11T12:26:52","slug":"what-is-the-difference-between-knife-gate-valve-and-slab-gate-valve-in-structure-and-application","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/pt\/what-is-the-difference-between-knife-gate-valve-and-slab-gate-valve-in-structure-and-application.html","title":{"rendered":"V\u00e1lvula de faca vs v\u00e1lvula de gaveta, v\u00e1lvula de gaveta e aplica\u00e7\u00e3o de v\u00e1lvula de gaveta de laje"},"content":{"rendered":"<p>Grandes f\u00e1bricas geralmente adotam algumas ferramentas de corte grandes. Desde a d\u00e9cada de 1980, todos os tipos de v\u00e1lvulas gaveta se desenvolveram rapidamente em menos de 20 anos. Seu escopo de uso continua a se expandir para todas as esferas da vida. Agora pode ser visto em ind\u00fastrias como prepara\u00e7\u00e3o de carv\u00e3o, descarga de ganga e descarga de esc\u00f3ria. <\/p>\n\n\n\n<p>Ent\u00e3o, quais s\u00e3o as diferen\u00e7as entre a v\u00e1lvula guilhotina e a v\u00e1lvula guilhotina em estrutura e uso? Vamos aprender sobre isso.<\/p>\n\n\n\n\n\n<p>Este tipo de produto pertence ao tipo fechado, sua dire\u00e7\u00e3o de movimento \u00e9 perpendicular \u00e0 dire\u00e7\u00e3o do fluido, e a chave da v\u00e1lvula guilhotina \u00e9 basicamente a chave completa. Portanto, regular a rela\u00e7\u00e3o de fluxo \u00e9 o principal objetivo deste tipo de produto.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-a-knife-gate-valve\">O que \u00e9 uma <strong><mark style=\"background-color:var(--base)\" class=\"has-inline-color has-contrast-2-color\"><a href=\"https:\/\/zecovalve.com\/pt\/produto\/knife-gate-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">V\u00e1lvula de guilhotina<\/a><\/mark><\/strong>?<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"330\" height=\"300\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/knife-gate-valve.jpg\" alt=\"V\u00e1lvula de guilhotina\" class=\"wp-image-16924\" srcset=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/knife-gate-valve.jpg 330w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/knife-gate-valve-300x273.jpg 300w\" sizes=\"auto, (max-width: 330px) 100vw, 330px\" \/><\/figure>\n<\/div>\n\n\n<p>As v\u00e1lvulas guilhotina s\u00e3o projetadas principalmente para servi\u00e7os on-off e isolamento em sistemas com alto teor de s\u00f3lidos suspensos. As v\u00e1lvulas de guilhotina s\u00e3o especialmente ben\u00e9ficas para lidar com lama, al\u00e9m de meios viscosos, corrosivos e abrasivos. As v\u00e1lvulas t\u00eam uma queda de press\u00e3o minimizada na posi\u00e7\u00e3o totalmente aberta, s\u00e3o f\u00e1ceis de acionar, t\u00eam peso relativamente baixo e s\u00e3o econ\u00f4micas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-does-a-knife-gate-valve-work\">Como funciona uma v\u00e1lvula guilhotina?<\/h2>\n\n\n\n<p>Uma v\u00e1lvula guilhotina funciona permitindo que meios espessos fluam facilmente sobre veda\u00e7\u00f5es macias sem interfer\u00eancia. Eles funcionam cortando a m\u00eddia \u00e0 medida que ela passa pela v\u00e1lvula. Hoje, as v\u00e1lvulas guilhotina s\u00e3o usadas em in\u00fameras f\u00e1bricas de processamento em todo o mundo e v\u00eam em tamanhos grandes. Isso torna mais f\u00e1cil para a v\u00e1lvula lidar com fluxos espessos de m\u00eddia, incluindo graxa, \u00f3leos, lama, \u00e1guas residuais e polpa de papel. Devido a isso, as v\u00e1lvulas de guilhotina t\u00eam limita\u00e7\u00f5es de baixa press\u00e3o e s\u00e3o projetadas para assentar a l\u00e2mina em uma veda\u00e7\u00e3o macia sem interrup\u00e7\u00e3o.<\/p>\n\n\n\n<p>A comporta da v\u00e1lvula guilhotina pode completar seu trabalho e compensar o desvio do \u00e2ngulo da superf\u00edcie de veda\u00e7\u00e3o no processo de processamento. Esta porta \u00e9 chamada de porta el\u00e1stica. Somente quando a v\u00e1lvula guilhotina est\u00e1 fechada, a superf\u00edcie de veda\u00e7\u00e3o pode ser vedada apenas com press\u00e3o m\u00e9dia. E a maioria das v\u00e1lvulas de guilhotina adota uma veda\u00e7\u00e3o for\u00e7ada, ou seja, quando a v\u00e1lvula \u00e9 fechada, a guilhotina deve ser for\u00e7ada para a sede da v\u00e1lvula por uma for\u00e7a externa, de modo a fazer com que todas as v\u00e1lvulas de guilhotina sejam melhor aproveitadas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-a-knife-gate-valve-used-for\">Para que \u00e9 usada uma v\u00e1lvula guilhotina?<\/h2>\n\n\n\n<p>A v\u00e1lvula guilhotina \u00e9 usada principalmente em g\u00e1s natural, petr\u00f3leo, ind\u00fastria qu\u00edmica, prote\u00e7\u00e3o ambiental, gasoduto urbano, gasoduto e outros dutos de transmiss\u00e3o, sistema de ventila\u00e7\u00e3o e dispositivo de armazenamento de vapor, e os produtos aprimorados ser\u00e3o mais amplamente utilizados.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Minera\u00e7\u00e3o e processamento de minerais<\/li><li>Aplica\u00e7\u00f5es de celulose e papel<\/li><li>\u00c1gua e \u00c1guas Residuais<\/li><li>Plantas de areia e cascalho<\/li><li>Linhas de cauda<\/li><li>Materiais de pasta abrasiva<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-advantages-of-knife-gate-valves\">Vantagens das v\u00e1lvulas guilhotina<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Gaxeta da caixa de gaxeta e suporte usinado<\/li><li>F\u00e1cil manobra e baixo consumo de energia<\/li><li>Baixa manuten\u00e7\u00e3o atrav\u00e9s da orienta\u00e7\u00e3o do port\u00e3o atrav\u00e9s de trabalhos superiores est\u00e1veis<\/li><li>Design exclusivo do assento e material do assento para alto desempenho e baixo LCC<\/li><li>Sem restri\u00e7\u00e3o de fluxo totalmente aberto<\/li><li>Corpo fundido de uma s\u00f3 pe\u00e7a<\/li><li>Port\u00e3o de a\u00e7o inoxid\u00e1vel<\/li><li>Sistema robusto de gaxeta de caixa de gaxeta<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Aplica\u00e7\u00e3o de v\u00e1lvula guilhotina<\/h2>\n\n\n\n<p>As v\u00e1lvulas de guilhotina s\u00e3o normalmente encontradas em esta\u00e7\u00f5es de tratamento de \u00e1guas residuais, f\u00e1bricas de produtos qu\u00edmicos, minera\u00e7\u00e3o, f\u00e1bricas de cimento, bem como em muitas outras aplica\u00e7\u00f5es industriais, enquanto as v\u00e1lvulas de guilhotina s\u00e3o normalmente encontradas em redes de \u00e1gua pot\u00e1vel, redes de distribui\u00e7\u00e3o e esta\u00e7\u00f5es de bombeamento de \u00e1gua pot\u00e1vel.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-a-slab-gate-valve\">O que \u00e9 uma <strong><mark style=\"background-color:var(--base)\" class=\"has-inline-color has-contrast-2-color\"><a href=\"https:\/\/zecovalve.com\/pt\/produto\/slab-gate-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">V\u00e1lvula de porta de laje<\/a><\/mark><\/strong>?<\/h2>\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\/Through-Conduit-Gate-Valve-1.jpg\" alt=\"V\u00e1lvula de gaveta atrav\u00e9s de conduta\" class=\"wp-image-17929\" width=\"400\" height=\"300\" srcset=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/Through-Conduit-Gate-Valve-1.jpg 800w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/Through-Conduit-Gate-Valve-1-300x225.jpg 300w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/Through-Conduit-Gate-Valve-1-768x576.jpg 768w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/Through-Conduit-Gate-Valve-1-600x450.jpg 600w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure>\n<\/div>\n\n\n<p>As v\u00e1lvulas gaveta de laje atrav\u00e9s de condu\u00edte s\u00e3o projetadas e fabricadas de acordo com os padr\u00f5es API 6D e API 6A e especificamente para servi\u00e7os on-off. Esta v\u00e1lvula \u00e9 adequada para suportar todos os tipos de fluidos de processo, sob condi\u00e7\u00f5es de alta press\u00e3o e temperatura.<\/p>\n\n\n\n<p>O projeto da v\u00e1lvula inclui uma haste ascendente que acomoda os movimentos ascendentes e descendentes da comporta, permitindo que ela abra e feche sob a press\u00e3o da linha.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-does-a-slab-gate-valve-work\">Como funciona uma v\u00e1lvula gaveta de laje?<\/h2>\n\n\n\n<p>Na opera\u00e7\u00e3o normal, o fluido da linha enche a cavidade e a comporta \u00e9 elevada pela press\u00e3o gerada a partir do caminho do fluxo, auxiliando a mola do atuador a abrir a v\u00e1lvula, resultando em uma configura\u00e7\u00e3o de falha de abertura.<\/p>\n\n\n\n<p>As v\u00e1lvulas gaveta de laje atrav\u00e9s de condu\u00edte s\u00e3o pigg\u00e1veis na posi\u00e7\u00e3o totalmente aberta e geram queda de press\u00e3o atrav\u00e9s da v\u00e1lvula igual ao di\u00e2metro interno do tubo de conex\u00e3o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-advantages-of-slab-gate-valves\">Vantagens das v\u00e1lvulas gaveta de laje?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Design de assento de bloqueio duplo e sangria;<\/li><li>O torque operacional \u00e9 menor que a v\u00e1lvula gaveta normal;<\/li><li>Selos bidirecionais, sem limita\u00e7\u00e3o na dire\u00e7\u00e3o do fluxo;<\/li><li>Quando a v\u00e1lvula est\u00e1 na posi\u00e7\u00e3o totalmente aberta, as superf\u00edcies da sede ficam fora do fluxo de fluxo que est\u00e1 sempre em contato total com uma comporta que pode proteger as superf\u00edcies da sede e \u00e9 adequada para o <a href=\"https:\/\/zecovalve.com\/pt\/understanding-pigging-and-pig-valves-in-industrial-pipelines-zeco-valve-blog.html\/\" data-internallinksmanager029f6b8e52c=\"12\" title=\"pigmenta\u00e7\u00e3o\" target=\"_blank\" rel=\"noopener\">pigmenta\u00e7\u00e3o<\/a> gasoduto;<\/li><li>O design da haste n\u00e3o ascendente pode ser escolhido;<\/li><li>A embalagem com mola pode ser escolhida;<\/li><li>A embalagem de baixa emiss\u00e3o pode ser escolhida de acordo com os requisitos da ISO 15848;<\/li><li>O design estendido da haste pode ser escolhido;<\/li><li>Tipo normalmente aberto ou tipo normalmente fechado com design de condu\u00edte direto;<\/li><li>O projeto de condu\u00edte sem passagem tamb\u00e9m est\u00e1 dispon\u00edvel conforme solicita\u00e7\u00e3o do cliente<\/li><\/ul>\n\n\n\n<p>Quanto \u00e0 sele\u00e7\u00e3o adequada de materiais, aqueles com testes rigorosos, opera\u00e7\u00e3o leve e forte resist\u00eancia \u00e0 corros\u00e3o podem atender \u00e0s necessidades de todos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Aplica\u00e7\u00e3o de v\u00e1lvula gaveta de laje<\/h2>\n\n\n\n<p>Esta v\u00e1lvula gaveta de laje \u00e9 atrav\u00e9s de condu\u00edte, pig\u00e1vel e entrada superior. As aplica\u00e7\u00f5es incluem dutos de transporte de g\u00e1s, petr\u00f3leo bruto e produtos petrol\u00edferos. Dispon\u00edvel em uma variedade de materiais e configura\u00e7\u00f5es para atender aos requisitos espec\u00edficos do seu projeto. e baixo torque operacional.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-knife-valve-vs-gate-valve\">V\u00e1lvula de faca vs v\u00e1lvula de gaveta<\/h2>\n\n\n\n<p>As diferen\u00e7as entre eles s\u00e3o vastas. Em primeiro lugar, sim, a v\u00e1lvula guilhotina tem um disco afiado. O objetivo \u00e9 cortar quaisquer s\u00f3lidos rigorosos que possam impedir a v\u00e1lvula de fechar e causar vazamento. Mas h\u00e1 mais coisas que tornam seus designs bem diferentes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-different-design-standard\">Padr\u00e3o de design diferente<\/h3>\n\n\n\n<p>A maior diferen\u00e7a entre esses dois tipos de v\u00e1lvulas \u00e9 que as v\u00e1lvulas gaveta s\u00e3o constru\u00eddas de acordo com os padr\u00f5es ANSI, enquanto as v\u00e1lvulas guilhotina aderem aos padr\u00f5es TAPPI. Portanto, dimensionalmente a v\u00e1lvula gaveta \u00e9 mais larga, flangeada e com classifica\u00e7\u00e3o de press\u00e3o ANSI. Ele tamb\u00e9m possui padr\u00f5es de estanqueidade API que devem ser atendidos. Eles s\u00e3o bidirecionais e comumente usados em aplica\u00e7\u00f5es de vapor, bem como em aplica\u00e7\u00f5es de fluidos. A v\u00e1lvula gaveta est\u00e1 dispon\u00edvel apenas com sedes met\u00e1licas.<\/p>\n\n\n\n<p>Outra diferen\u00e7a significativa entre uma v\u00e1lvula gaveta ANSI e uma v\u00e1lvula guilhotina est\u00e1 na \u00e1rea da sobreposta. Uma v\u00e1lvula gaveta ter\u00e1 um conjunto de gaxetas de anel em V que veda o eixo preso \u00e0 guilhotina, enquanto uma v\u00e1lvula guilhotina possui uma gaxeta que veda ao redor da guilhotina.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-different-end-type\">Tipo final diferente<\/h3>\n\n\n\n<p>Um port\u00e3o de faca tem um perfil muito fino em compara\u00e7\u00e3o com sua contraparte mais volumosa. Tamb\u00e9m \u00e9 unidirecional (embora bidirecional seja uma op\u00e7\u00e3o em alguns) e vem em wafer ou corpo articulado, sem flanges. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-different-seat-structure\">Estrutura de assento diferente<\/h3>\n\n\n\n<p>As sedes da v\u00e1lvula guilhotina v\u00eam em tudo, desde metal at\u00e9 tipos resilientes. A v\u00e1lvula guilhotina possui um corte obl\u00edquo em forma de faca na parte inferior da placa da v\u00e1lvula, que tem a fun\u00e7\u00e3o de cortar o meio para que a v\u00e1lvula seja fechada sem ser bloqueada pelo meio.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-different-function\">Fun\u00e7\u00e3o diferente<\/h3>\n\n\n\n<p>A fun\u00e7\u00e3o da v\u00e1lvula guilhotina \u00e9 que ela s\u00f3 pode ser usada como fun\u00e7\u00e3o de corte e n\u00e3o pode ser usada como estrangulamento.<\/p>\n\n\n\n<p>A v\u00e1lvula gaveta pode ser usada para estrangulamento ou como interruptor.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-different-installation-operation-application\">Diferentes instala\u00e7\u00f5es, opera\u00e7\u00f5es e aplica\u00e7\u00f5es<\/h3>\n\n\n\n<p>Em compara\u00e7\u00e3o com as v\u00e1lvulas gaveta comuns, as v\u00e1lvulas guilhotina s\u00e3o de estrutura simples, tamanho pequeno, opera\u00e7\u00e3o flex\u00edvel, f\u00e1ceis de instalar e adequadas para meios com maior consist\u00eancia e part\u00edculas s\u00f3lidas.<\/p>\n\n\n\n<p>O projeto da v\u00e1lvula guilhotina de passagem total permite que a v\u00e1lvula seja usada em condi\u00e7\u00f5es sujas, e a sede e a gaxeta substitu\u00edveis facilitam a manuten\u00e7\u00e3o da v\u00e1lvula.<\/p>\n\n\n\n<p>Devido ao seu melhor desempenho, o pre\u00e7o das v\u00e1lvulas de guilhotina \u00e9 geralmente mais alto do que o das v\u00e1lvulas de guilhotina.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Aplica\u00e7\u00e3o de v\u00e1lvula gaveta<\/h4>\n\n\n\n<p>As v\u00e1lvulas gaveta s\u00e3o usadas em muitas aplica\u00e7\u00f5es industriais, incluindo a ind\u00fastria de petr\u00f3leo e g\u00e1s, farmac\u00eautica, manufatura, automotiva e mar\u00edtima. As v\u00e1lvulas de haste n\u00e3o ascendente s\u00e3o muito populares em navios, em aplica\u00e7\u00f5es subterr\u00e2neas ou onde o espa\u00e7o vertical \u00e9 limitado porque n\u00e3o ocupam espa\u00e7o extra.<\/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\/pt\/\">V\u00e1lvula ZECO<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/tag\/shanghai-pressure-reducing-valve-factory\/\">F\u00e1brica de v\u00e1lvulas redutoras de press\u00e3o de Xangai<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/gate-valve-problems.html\/\">Reparo de v\u00e1lvula gaveta<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/difference-between-gate-valves-and-ball-valves.html\/\">V\u00e1lvula de gaveta vs V\u00e1lvula de esfera<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/advantages-and-disadvantages-of-globe-valves.html\/\">O que \u00e9 uma v\u00e1lvula de globo?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/difference-between-gate-valve-and-butterfly-valve.html\/\">Diferen\u00e7a entre a v\u00e1lvula de gaveta e a v\u00e1lvula de borboleta<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/the-difference-between-globe-valve-and-ball-valve.html\/\">V\u00e1lvula de Globo vs V\u00e1lvula de Esfera<\/a>\n\n<\/div>\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\/pt\/\">V\u00e1lvula ZECO<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/difference-between-gate-valves-and-ball-valves.html\/\">V\u00e1lvula de gaveta vs V\u00e1lvula de esfera<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/introduction-of-epdm-nbr-butterfly-valve-seat-industrial-valve-information-news-zeco-valve.html\/\">V\u00e1lvula borboleta NBR<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/what-is-an-axial-flow-silent-check-valve.html\/\">O que \u00e9 uma v\u00e1lvula de reten\u00e7\u00e3o axial<\/a>\n\n<\/div>\n\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/gate-valve-problems.html\/\">Reparo de v\u00e1lvula gaveta<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/advantages-and-disadvantages-of-globe-valves.html\/\">O que \u00e9 uma v\u00e1lvula de globo?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/produto\/manual-gate-valve\/\">V\u00e1lvula de gaveta de acionamento manual Fabricante<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/the-function-of-globe-valve-in-pipeline-system.html\/\">O que s\u00e3o v\u00e1lvulas globo?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/difference-between-gate-valve-and-butterfly-valve.html\/\">Diferen\u00e7a entre a v\u00e1lvula de gaveta e a v\u00e1lvula de borboleta<\/a>\n\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Grandes f\u00e1bricas geralmente adotam algumas ferramentas de corte grandes. Desde a d\u00e9cada de 1980, todos os tipos de v\u00e1lvulas gaveta se desenvolveram rapidamente em menos de\u2026 <a title=\"V\u00e1lvula de faca vs v\u00e1lvula de gaveta, v\u00e1lvula de gaveta e aplica\u00e7\u00e3o de v\u00e1lvula de gaveta de laje\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/pt\/what-is-the-difference-between-knife-gate-valve-and-slab-gate-valve-in-structure-and-application.html\" aria-label=\"Mais em V\u00e1lvula de faca vs v\u00e1lvula de gaveta, v\u00e1lvula de gaveta e aplica\u00e7\u00e3o de v\u00e1lvula de gaveta de laje\">Ler mais<\/a><\/p>","protected":false},"author":2,"featured_media":16924,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1],"tags":[2800,2001,2754,2756,2753,2097,2755],"class_list":["post-16137","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-gate-valve-application","tag-knife-gate-valve","tag-knife-gate-valve-vs-gate-valve","tag-knife-gate-valves","tag-knife-valve-vs-gate-valve","tag-slab-gate-valve","tag-slab-gate-valves","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/knife-gate-valve.jpg",330,300,false],"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/pt\/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":2800,"name":"gate valve application","slug":"gate-valve-application","term_group":0,"term_taxonomy_id":2800,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2001,"name":"Knife Gate Valve","slug":"knife-gate-valve","term_group":0,"term_taxonomy_id":2001,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_853ad1-30\"} \/-->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-what-is-a-knife-gate-valve\">What is a Knife Gate Valve?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nKnife gate valves are engineered specifically for on-off and isolation operations in systems with a high dissolved solid particle. Knife gate valves are extremely useful when dealing with slurry, abrasive, corrosive, and viscous media. The valves have a low-pressure drop in the fully open position, are simple to operate, light in weight, and cost-effective.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nKnife gate valves are intended to work in the harshest conditions, with a sharpened blade to cut through heavy liquids.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThey are extremely helpful in wastewater applications where corrosion is a major concern. In addition to the valve design that is optimized for slurry media, having a knife gate valve composed of acid-proof stainless steel is advantageous because it is less vulnerable to corrosion damage and therefore requires less frequent maintenance or even replacements.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nKnife gate valves should always be used for applications that require a fully open or completely closed position and should not be used to regulate flow unless specifically designed for it. When fluid is pushed against a partly closed gate, a vibration occurs, gradually eroding the disc and seat. Furthermore, the knife gate valves are intended to open and close slowly to protect against the effects of the water hammer.\r\n\r\n<!-- \/wp:paragraph -->\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 KNIFE GATE VALVE PRICE<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Specifications of Knife Gate Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Available materials: WCB, WC6, WCC, LCB, LCC, Cast iron, Ductile Iron, SS316, SS304<\/li>\r\n \t<li>Size: 2\u2033 to 80\u2033<\/li>\r\n \t<li>Class: 150 to 300<\/li>\r\n \t<li>Nominal Pressure: PN6 to PN40<\/li>\r\n \t<li>Operation: Handwheel, Electric and Pneumatic Actuated, Gear operated<\/li>\r\n \t<li>Ends: Wafer, Lug, Flanged<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Types of Knife Gate Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Uni-directional Knife Gate Valve<\/li>\r\n \t<li>Bi-directional Knife Gate Valve<\/li>\r\n \t<li>Slurry Knife Gate Valve<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Where is a Knife Gate Valve used?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nKnife gate valves are commonly used in mining, power plants, and the paper, chemical, and food industries. They have the advantage of being very compact due to the linear movement of the shut-off damper (plate that blocks the flow of fluid in the closed position). The knife gate valve is mainly a shut-off valve, although it can be used as a control valve when the shutter is placed in the partially open position.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nKnife gate valves can be used for fluids loaded with solid particles such as wastewater or sludge. As a general rule, the knife gate valve is designed to be sealed on the upstream side of the circuit (on the fluid inlet side), but some valves are sealed on both sides, allowing them to be used regardless of the direction of fluid flow. In the open position, the head loss is very low because the valve does not cause a change in the fluid direction.\r\nThe closing and opening time can be very long, however, and you should consider regular maintenance to correct wear problems between the shutter and sealing elements.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Features of Knife Gate Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Reliability of operation<\/li>\r\n \t<li>The cast body of the valve is dust-tight assuring a clean operation<\/li>\r\n \t<li>Knife action to cut through a standing column of material<\/li>\r\n \t<li>Short opening and closing time<\/li>\r\n \t<li>Maintenance is easy with replaceable packing<\/li>\r\n \t<li>Modular design permitting upgrades to pack and operators<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>World's Largest Gate Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nTexas, the second largest state in the USA both in the area and population faces enormous demand for drinking water. Within Texas lies America's largest inland metropolitan area, Dallas \u2013 Fort Worth Metroplex (DFW) province which is the economic and cultural hub of North &amp; Central Texas.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe water in DFW is both sourced and managed by two major Texas water authorities, Tarrant Regional Water District (TRWD) &amp; Dallas Water Utilities (DWU). With the rapidly growing population in this area, it is expected that more than 13 million residents will need water by 2060 which is more than double the population served by the authorities today. As a result, they have partnered to execute the $2B Integrated Pipeline Project (IPL) which will enable them to increase the water supply by 350 million gallons per day (1.59 billion liters per day) meeting the ever-increasing demand in the long term.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Knife Valve Factory<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nWe specialize in custom knife gate valves from 2\" to 96\u201d and above, utilizing carbon steel to stainless steel and other weldable alloys. Our staff has many years of combined experience in building knife gate valves in particular.\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":7,"filter":"raw"},{"term_id":2754,"name":"knife gate valve vs gate valve","slug":"knife-gate-valve-vs-gate-valve","term_group":0,"term_taxonomy_id":2754,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2756,"name":"knife gate valves","slug":"knife-gate-valves","term_group":0,"term_taxonomy_id":2756,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"},{"term_id":2753,"name":"knife valve vs gate valve","slug":"knife-valve-vs-gate-valve","term_group":0,"term_taxonomy_id":2753,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2097,"name":"slab gate valve","slug":"slab-gate-valve","term_group":0,"term_taxonomy_id":2097,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"},{"term_id":2755,"name":"slab gate valves","slug":"slab-gate-valves","term_group":0,"term_taxonomy_id":2755,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}],"post_tag":[{"value":2800,"label":"gate valve application"},{"value":2001,"label":"Knife Gate Valve"},{"value":2754,"label":"knife gate valve vs gate valve"},{"value":2756,"label":"knife gate valves"},{"value":2753,"label":"knife valve vs gate valve"},{"value":2097,"label":"slab gate valve"},{"value":2755,"label":"slab gate valves"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Knife Valve vs Gate Valve, Knife Gate Valve &amp; Slab Gate Valve Application<\/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\/pt\/what-is-the-difference-between-knife-gate-valve-and-slab-gate-valve-in-structure-and-application.html\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Knife Valve vs Gate Valve, Knife Gate Valve &amp; Slab Gate Valve Application\" \/>\n<meta property=\"og:description\" content=\"Large factories usually adopt some large cutting tools. Since the 1980s, all kinds of gate valves have developed rapidly in less than ... 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