{"id":1050,"date":"2021-12-27T10:10:10","date_gmt":"2021-12-27T10:10:10","guid":{"rendered":"https:\/\/zecovalve.com\/bellow-seal-valvesgateglobe-valve.html"},"modified":"2022-11-05T09:31:19","modified_gmt":"2022-11-05T09:31:19","slug":"bellow-seal-valvesgateglobe-valve","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/pt\/bellow-seal-valvesgateglobe-valve.html","title":{"rendered":"V\u00e1lvulas de veda\u00e7\u00e3o de fole \u2013 V\u00e1lvula globo de veda\u00e7\u00e3o de fole | V\u00e1lvula de gaveta de veda\u00e7\u00e3o abaixo"},"content":{"rendered":"<p>A ZECO Valve fabrica v\u00e1lvulas globo seladas com fole de alta qualidade. A nossa empresa garante a qualidade e a perfeita estanqueidade das nossas v\u00e1lvulas de acordo com as normas EN<\/p>\n\n\n\n<p>Uma v\u00e1lvula com fole para vedar o inv\u00f3lucro da haste \u00e9 a escolha ideal sempre que o vazamento para a atmosfera for intoler\u00e1vel devido a toxicidade, corros\u00e3o qu\u00edmica, radioatividade ou outras raz\u00f5es ecol\u00f3gicas ou de sa\u00fade. Al\u00e9m disso, a soldagem da veda\u00e7\u00e3o da tampa do corpo torna a v\u00e1lvula hermeticamente vedada. O fole \u00e9 soldado \u00e0 haste e \u00e0 parte inferior do castelo.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-a-bellow-seal-valve\">O que \u00e9 uma v\u00e1lvula de veda\u00e7\u00e3o de fole?<\/h2>\n\n\n\n<p>A v\u00e1lvula de veda\u00e7\u00e3o de fole \u00e9 projetada com fole soldado no castelo e na haste, de modo que, quando a haste se desloca, conduza a expans\u00e3o ou descompress\u00e3o abaixo. Ele elimina inerentemente o projeto convencional de poss\u00edvel vazamento na gaxeta da haste. V\u00e1lvulas seladas por fole podem atingir vazamento verdadeiramente zero; ideal para aplica\u00e7\u00f5es rigorosas sem vazamentos, como servi\u00e7os t\u00f3xicos e inflam\u00e1veis. A v\u00e1lvula de veda\u00e7\u00e3o de fole \u00e9 a escolha ideal sempre que o vazamento para a atmosfera for intoler\u00e1vel devido a toxicidade, corros\u00e3o qu\u00edmica, radioatividade ou outras raz\u00f5es ecol\u00f3gicas ou de sa\u00fade. Al\u00e9m disso, a soldagem da veda\u00e7\u00e3o da tampa do corpo torna a v\u00e1lvula hermeticamente vedada.<span id=\"more-246\"><\/span> O fole \u00e9 soldado \u00e0 haste e \u00e0 parte inferior do castelo.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/DIN-Globe-Valve-1-1024x507.jpg\" alt=\"\" class=\"wp-image-20798\" width=\"768\" height=\"380\" srcset=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/DIN-Globe-Valve-1-1024x507.jpg 1024w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/DIN-Globe-Valve-1-300x149.jpg 300w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/DIN-Globe-Valve-1-768x381.jpg 768w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/DIN-Globe-Valve-1-1536x761.jpg 1536w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/DIN-Globe-Valve-1-2048x1015.jpg 2048w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/DIN-Globe-Valve-1-600x297.jpg 600w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Como funcionam as v\u00e1lvulas de veda\u00e7\u00e3o de fole?<\/h2>\n\n\n\n<p>Essas v\u00e1lvulas apresentam foles tipo acorde\u00e3o \u2013 ou seja, o componente do cartucho do fole, soldado \u00e0 haste e ao castelo da v\u00e1lvula. Durante o curso da v\u00e1lvula, o fole se comprime ou se expande junto com o movimento linear da haste deslizante, com pouco ou nenhum atrito.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Tipos de fole<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Fole formado<\/strong>: No projeto padr\u00e3o da Conval, o fole formado come\u00e7a como uma folha plana (folha de parede fina) enrolada em um tubo e soldada por fus\u00e3o longitudinalmente formando uma \u00fanica camada. Finas camadas de metal s\u00e3o combinadas para formar foles de m\u00faltiplas camadas. A for\u00e7a mec\u00e2nica ou hidrost\u00e1tica forma o fole com dobras arredondadas e bem espa\u00e7adas. A Conval forneceu foles com at\u00e9 6 camadas para aplica\u00e7\u00f5es de alta press\u00e3o.<\/li><li><strong>Fole soldado<\/strong>: Os foles soldados s\u00e3o fabricados soldando placas de metal fino semelhantes a arruelas em suas circunfer\u00eancias interna e externa.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Tipos de v\u00e1lvulas de veda\u00e7\u00e3o de fole<\/h2>\n\n\n\n<p>Inclui: V\u00e1lvulas de veda\u00e7\u00e3o de fole ANSI, V\u00e1lvulas de veda\u00e7\u00e3o de fole DIN e outras v\u00e1lvulas de veda\u00e7\u00e3o de fole padr\u00e3o, V\u00e1lvula de gaveta de veda\u00e7\u00e3o de fole, Veda\u00e7\u00e3o de fole <em><strong>V\u00e1lvula de globo<\/strong><\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00e1lvula de gaveta de veda\u00e7\u00e3o abaixo<\/h3>\n\n\n\n<p>V\u00e1lvula gaveta com veda\u00e7\u00e3o abaixo de acordo. para ANSI \u00e9 aplic\u00e1vel ao corte e conex\u00e3o de fluidos de tubula\u00e7\u00f5es. V\u00e1lvula de parada com veda\u00e7\u00e3o abaixo de acordo. para ANSI \u00e9 aplic\u00e1vel ao corte, troca e ajuste do meio. O meio que \u00e9 usado em diversas ind\u00fastrias, como petr\u00f3leo, ind\u00fastria qu\u00edmica, farm\u00e1cia, fertilizantes qu\u00edmicos, ind\u00fastria de energia el\u00e9trica, etc. sob press\u00e3o nominal de CLASS150-900LBS e temperatura de trabalho de -29 ~ 350 \u2103<br>Est\u00e1 dispon\u00edvel um plugue parab\u00f3lico para a chave e o ajuste do fluido.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Caracter\u00edsticas do produto da v\u00e1lvula de veda\u00e7\u00e3o de fole<\/h4>\n\n\n\n<ol class=\"wp-block-list\"><li>Este produto possui uma estrutura l\u00f3gica, veda\u00e7\u00e3o confi\u00e1vel, excelente desempenho e design agrad\u00e1vel.<\/li><li>A haste da v\u00e1lvula de veda\u00e7\u00e3o de fole \u00e9 temperada e revenida, e sua superf\u00edcie \u00e9 tratada por tratamento com nitrog\u00eanio, portanto possui boa resist\u00eancia \u00e0 corros\u00e3o e ao atrito.<\/li><li>A superf\u00edcie de veda\u00e7\u00e3o \u00e9 soldada com liga dura de Co, que \u00e9 resistente ao atrito, resistente \u00e0 corros\u00e3o, tem boa resist\u00eancia ao atrito e longa vida \u00fatil.<\/li><li>A haste pode mostrar a posi\u00e7\u00e3o do elevador, ficando mais clara.<\/li><li>A v\u00e1lvula de veda\u00e7\u00e3o abaixo tem capacidade de veda\u00e7\u00e3o dupla, portanto \u00e9 mais confi\u00e1vel.<\/li><li>O material da pe\u00e7a, o flange e a dimens\u00e3o da extremidade da solda de topo podem ser selecionados de acordo com as condi\u00e7\u00f5es operacionais atuais e os requisitos de uso, de modo que atendam aos requisitos de diversas engenharias.<\/li><li>Forma\u00e7\u00e3o estrutural: BB-BG-OS\ufe60Y<\/li><li>Maneira de dirigir: Operado manualmente, acionado eletricamente<\/li><\/ol>\n\n\n\n<h4 class=\"wp-block-heading\">Padr\u00e3o aplic\u00e1vel de v\u00e1lvula de veda\u00e7\u00e3o de fole<\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>Projeto: API 600, API 6D<\/li><li>Cara a cara: ASME B16.10<\/li><li>Extremidades do flange: ASME B16.5<\/li><li>Teste\ufe60inspe\u00e7\u00e3o:API 598,API 6D<\/li><\/ul>\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\/pt\/categoria-do-produto\/globe-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">V\u00e1lvula globo de veda\u00e7\u00e3o de fole<\/a><\/mark><\/strong><\/h3>\n\n\n\n<p>Uma v\u00e1lvula globo com veda\u00e7\u00e3o de fole \u00e9 uma estrutura compacta que \u00e9 uma esp\u00e9cie de v\u00e1lvula de controle que utiliza fole para vedar os componentes da haste da v\u00e1lvula. A v\u00e1lvula de fole possui um fole interno e a extremidade inferior do fole de a\u00e7o inoxid\u00e1vel \u00e9 soldada \u00e0 haste para evitar que o fluido do sistema corroa a haste.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Caracter\u00edsticas da v\u00e1lvula globo de veda\u00e7\u00e3o de fole<\/h4>\n\n\n\n<ol class=\"wp-block-list\"><li>A vantagem mais importante de qualquer v\u00e1lvula de fole \u00e9 o design de veda\u00e7\u00e3o dupla (fole + gaxeta). Assim, mesmo que o fole falhe, a gaxeta da haste evitar\u00e1 qualquer tipo de vazamento para atender aos padr\u00f5es internacionais de veda\u00e7\u00e3o.<\/li><li>Minimiza qualquer perda de fluido m\u00e9dio e garante seguran\u00e7a e prote\u00e7\u00e3o ambiental. Em \u00faltima an\u00e1lise, isto melhorar\u00e1 a seguran\u00e7a da planta onde a v\u00e1lvula de fole foi instalada.<\/li><li>Pode atuar como um economizador de energia, pois contribui para minimizar as perdas de energia devido a vazamentos.<\/li><li>Como o vazamento \u00e9 minimizado, evita a manuten\u00e7\u00e3o frequente da v\u00e1lvula. Portanto, isso leva a uma vida \u00fatil mais longa da v\u00e1lvula.<\/li><li>Devido \u00e0 maior vida \u00fatil, os custos de opera\u00e7\u00e3o e manuten\u00e7\u00e3o s\u00e3o consideravelmente reduzidos.<\/li><li>O design robusto da veda\u00e7\u00e3o do fole garante vazamento zero da haste da v\u00e1lvula, proporcionando assim condi\u00e7\u00f5es livres de manuten\u00e7\u00e3o.<\/li><li>A seguran\u00e7a do pessoal de trabalho \u00e9 melhorada com a instala\u00e7\u00e3o de uma v\u00e1lvula de fole, pois as emiss\u00f5es de produtos qu\u00edmicos inflam\u00e1veis, t\u00f3xicos e perigosos podem ser minimizadas.<\/li><\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Caracter\u00edsticas das v\u00e1lvulas de veda\u00e7\u00e3o de fole<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Cada v\u00e1lvula \u00e9 testada de acordo com API 598.<\/li><li>Cada conjunto abaixo \u00e9 testado contra vazamento de h\u00e9lio para garantir vazamento zero.<\/li><li>As hastes n\u00e3o rotativas evitam a tor\u00e7\u00e3o abaixo.<\/li><li>As veda\u00e7\u00f5es da haste secund\u00e1ria incluem:<ul><li>Banco traseiro da haste<\/li><li>Gaxeta de haste API 624<\/li><\/ul><\/li><li>Acess\u00f3rios lubrificantes para garantir a lubrifica\u00e7\u00e3o adequada da bucha da haste para abertura e fechamento eficientes.<\/li><li>V\u00e1rios materiais de fole est\u00e3o dispon\u00edveis: 316Ti, Hastelloy, Inconel, Monel, etc.<\/li><li>Todos os foles s\u00e3o hidroformados com no m\u00ednimo duas camadas.<\/li><li>Dispon\u00edvel nas classes de press\u00e3o 150-1500 (todos os materiais do corpo dispon\u00edveis)<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00e1lvula de veda\u00e7\u00e3o de fole vs v\u00e1lvulas embaladas<\/h2>\n\n\n\n<p>As v\u00e1lvulas vedadas requerem dois limites de veda\u00e7\u00e3o: uma veda\u00e7\u00e3o de 360\u00b0 na superf\u00edcie da haste e uma veda\u00e7\u00e3o de 360\u00b0 na parede da caixa de empanque. A v\u00e1lvula de veda\u00e7\u00e3o de fole Conval remove esses dois caminhos de vazamento. As v\u00e1lvulas de veda\u00e7\u00e3o de fole Conval s\u00e3o usadas quando as v\u00e1lvulas embaladas podem n\u00e3o conter de forma confi\u00e1vel gases leves ou fluidos de sistema perigosos. Em todas as aplica\u00e7\u00f5es, a veda\u00e7\u00e3o da haste com fole soldado Inconel de 6 camadas \u00e9 mais confi\u00e1vel do que as veda\u00e7\u00f5es deslizantes da haste.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Aplica\u00e7\u00f5es de v\u00e1lvulas de veda\u00e7\u00e3o de fole<\/h2>\n\n\n\n<p>Esses componentes cr\u00edticos s\u00e3o uma parte essencial da opera\u00e7\u00e3o segura do sistema de fluidos em uma ampla gama de ind\u00fastrias, incluindo as seguintes:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Aeroespacial<\/li><li>Biotecnologia<\/li><li>Processamento qu\u00edmico<\/li><li>Poder f\u00f3ssil<\/li><li>Poder nuclear<\/li><li>Petr\u00f3leo<\/li><li>Farmac\u00eautico<\/li><li>Fabrica\u00e7\u00e3o de semicondutores<\/li><li>V\u00e1cuo e ultra-alto v\u00e1cuo<\/li><\/ul>\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\/categoria-do-produto\/globe-valve\/\">Fabricante de v\u00e1lvula globo - V\u00e1rios tipos de v\u00e1lvula globo<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/categoria-do-produto\/gate-valve\/\">Fabricante de v\u00e1lvula gaveta - v\u00e1rios tipos de v\u00e1lvula gaveta<\/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<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/pt\/china-gate-valves-suppliersnon-rising-stem-gate-valvesks-gate-valves.html\/\">O que \u00e9 uma v\u00e1lvula de gaveta?<\/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\/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<p>Dez artigos antes e depois<\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/sgv-wedge-gate-valve.html\/\">V\u00e1lvula de gaveta ZECO<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/forged-steel-globe-valve.html\/\">V\u00e1lvula globo de a\u00e7o forjado<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/%d9%84%d9%88%d8%ad%d8%a9-%d9%85%d8%b2%d8%af%d9%88%d8%ac%d8%a9-%d8%a3%d9%88-%d8%aa%d8%ad%d9%82%d9%82-%d8%b3%d9%88%d9%8a%d9%86%d8%ba-%d9%81%d8%ad%d8%b5-%d8%b5%d9%85%d8%a7%d9%85-%d9%81%d8%b1%d8%a7%d8%b4.html\/\">\u0644\u0648\u062d\u0629 \u0645\u0632\u062f\u0648\u062c\u0629 \u0623\u0648 \u062a\u062d\u0642\u0642 \u0633\u0648\u064a\u0646\u063a \u0641\u062d\u0635 \u0635\u0645\u0627\u0645 \u0641\u0631\u0627\u0634\u0629 \u0646\u0648\u0639<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/working-principle-of-floating-ball-valve.html\/\">V\u00e1lvula de esfera flutuante-v\u00e1lvula de esfera flutuante<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/%d8%a7%d9%84%d8%b5%d9%81%d8%ad%d8%a9-%d8%a7%d9%84%d8%b1%d8%a6%d9%8a%d8%b3%d9%8a%d8%a9.html\/\">\u0627\u0644\u0635\u0641\u062d\u0629 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/distributors-wholesales-dealer-sales-representatives-wanted.html\/\">Procuram-se distribuidores\/revendedores atacadistas e representantes de vendas<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/china-valve-industry.html\/\">Ind\u00fastria de v\u00e1lvulas da China<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/100x-type-floating-ball-valve-product-installation-and-maintenance.html\/\">V\u00e1lvula Esfera Flutuante tipo 100X \u2013 Instala\u00e7\u00e3o e Manuten\u00e7\u00e3o do Produto<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/about-gate-valve.html\/\">Sobre v\u00e1lvula gaveta<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/din-valve-standarden-iso-part2.html\/\">Padr\u00e3o de v\u00e1lvula DIN (EN\/ISO)-parte2<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>A ZECO Valve fabrica v\u00e1lvulas globo seladas com fole de alta qualidade. A nossa empresa garante a qualidade e a perfeita estanqueidade das nossas v\u00e1lvulas de acordo com\u2026 <a title=\"V\u00e1lvulas de veda\u00e7\u00e3o de fole \u2013 V\u00e1lvula globo de veda\u00e7\u00e3o de fole | V\u00e1lvula de gaveta de veda\u00e7\u00e3o abaixo\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/pt\/bellow-seal-valvesgateglobe-valve.html\" aria-label=\"Mais em V\u00e1lvulas Bellow Seal \u2013 V\u00e1lvula Globo Bellows Seal | V\u00e1lvula de gaveta de veda\u00e7\u00e3o abaixo\">Ler mais<\/a><\/p>","protected":false},"author":2,"featured_media":20798,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1],"tags":[3108,2683,3556,3110,2684,2687,3557],"class_list":["post-1050","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-bellow-seal-gate-valve","tag-bellow-seal-globe-valve","tag-bellow-seal-valve","tag-bellows-seal-gate-valve","tag-bellows-seal-globe-valve","tag-china-bellows-seal-globe-valve","tag-steam-bellows-seal-globe-valve","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/DIN-Globe-Valve-1-1024x507.jpg",1024,507,true],"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":3108,"name":"bellow seal gate valve","slug":"bellow-seal-gate-valve","term_group":0,"term_taxonomy_id":3108,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"},{"term_id":2683,"name":"Bellow Seal Globe Valve","slug":"bellow-seal-globe-valve","term_group":0,"term_taxonomy_id":2683,"taxonomy":"post_tag","description":"","parent":0,"count":4,"filter":"raw"},{"term_id":3556,"name":"bellow seal valve","slug":"bellow-seal-valve","term_group":0,"term_taxonomy_id":3556,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":3110,"name":"Bellows Seal Gate Valve","slug":"bellows-seal-gate-valve","term_group":0,"term_taxonomy_id":3110,"taxonomy":"post_tag","description":"<!-- wp:paragraph -->\r\n\r\nIn particular chemical processes, the fluids in the pipes are often toxic, radioactive, and hazardous. Bellow sealed valves are used to prevent leakage of any toxic chemical into the atmosphere. The bellow can be supplied in different materials like 316Ti, 321, C276, or Alloy 625. Body material can be selected from all available materials.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLeakage at various points in pipelines found in chemical plants creates emissions. All such leakage points can be detected using various methods and instruments and should be noted by the plant engineer. Critical leakage points include flanged gasket joints and the Valve\/pump gland packing, etc. Today the chemical process industry is gearing itself towards safer technology for better environmental protection and it has become every process engineer's responsibility to design plants that limit damage to the environment through the prevention of leakage of any toxic chemicals.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_60ba43-05\"} \/-->\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 BELLOW SEAL 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 id=\"h-what-is-bellow-seal-gate-valve\">What is Bellow Seal Gate Valve?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA Bellow Seal Gate Valve is a specially designed valve suitable for use in industries dealing with a hazardous medium where even minute leakages can be extremely critical. With the exponential growth of new industries such as the chemical and nuclear industries, there is a growing abundance of flammable, hazardous, extremely poisonous, and toxic media flowing through the pipelines. This creates a high risk of leakage, explosion, and health hazards. So, the valves used in such pipes and systems have specific stringent leakage and sealing requirements.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Bellow Construction of Bellow Sealed Gate Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe bellow cartridge is welded to both the Valve Bonnet and the Valve stem. The bellow cartridge has a number of convolutions and these convolutions become compressed or expanded depending upon the movement of the Valve stem. (Scientifically speaking the bellow gets compressed when the Valve is in the open position and expanded when the Valve is in the closed condition). It is important to properly install the Valve bodies. The bellow can be sealed to the Valves in two different ways. Firstly, the bellow can be welded to the Valve stem at the top and the Valve body at the bottom. In this case, the process fluid is contained inside the bellow, or in the second method the bellow is welded to the Valve stem at the bottom and the body on the top. In this case, the process fluid is contained in the annular region between the Valve Bonnet and bellow (from the outside).\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe bellow is a critical component and forms the heart of the bellow seal Valves. To avoid any twisting of the bellow the Valve must have a stem with linear movement only. This can be achieved using a so-called sleeve nut at the Yoke portion of the Valve Bonnet. A handwheel is fitted onto the sleeve-nut which effectively transfers a rotary motion of the handwheel into a linear motion in the Valve stem.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Bellow types of Bellow Seal Gate Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThere are two main types of bellow.. the Forged Bellow and the Welded Bellow. Formed-type bellows are made by rolling a flat sheet (thin wall foil) into a tube which is then longitudinally fusion welded. This tube is subsequently mechanically or hydrostatically formed into a bellow with rounded and widely spaced folds. The welded leaf type bellow is made by welding washer-like plates of thin metal together at both the inner and outer circumference of the washers - like plates. A welded leaf bellow has more folds per unit length as compared to forged bellows. Thus, for the same stroke length, forged bellows are two to three times longer than their welded leaf counterparts.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nReportedly, mechanically forged bellows fail at random spots, while the welded leaf usually fails at or near a weld. To ensure full penetration of bellow ends and end coller welding it is advisable to fabricate using micro plasma welding.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Bellow Design of Bellows Seal Gate Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe multi-ply bellow design is preferred for handling higher-pressure fluids (generally two or three plies of the metal wall). A two-ply bellow can increase its pressure rating by 80% to 100% as compared to a single ply bellow of the same thickness. Alternatively, if a single ply bellow of a thickness equivalent to a pressure rating of a two-ply bellow is used, the stroke length is reduced. Thus, a multi-ply bellow design offers a distinct advantage over a single ply bellow. It is clear that the bellow is subject to metal fatigue and this fatigue can induce weld failure. The bellow fatigue life is affected by the material of construction, fabrication technique, stroke length, and stroke frequency, in addition to the usual parameters such as fluid temperature and pressure.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Specification of Bellow Seal Gate Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Design standard: ASME B16.34<\/li>\r\n \t<li>Face to face dimension: ASME B16.10<\/li>\r\n \t<li>Flanged ends: ASME B16.5<\/li>\r\n \t<li>Test &amp; inspection: API 598<\/li>\r\n \t<li>Nominal Size: NPS 1\/2\uff5e16<\/li>\r\n \t<li>Pressure Rating: CL.150\uff5eCL.1500<\/li>\r\n \t<li>End Connection: RF\/RTJ\/BW\/SW<\/li>\r\n \t<li>Body Material: Casting &amp; Forging(Carbon Steel, SS, Duplex, Hastelloy)<\/li>\r\n \t<li>Trim Material: As per standard or order requirement<\/li>\r\n \t<li>Bellow Material\uff1a304\/304L\/316\/316L\/Inconel600\/625\/718<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Features of Bellows Seal Gate Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Long cycle life bellows (3000 cycles): Designed and qualification tested for high pressure\/temperature service.<\/li>\r\n \t<li>Bellows monitoring port (optional): A plug can be connected to the space above the bellows to monitor performance.<\/li>\r\n \t<li>Two secondary stem seals: a) Backseat in an open position; b) Graphite packing.<\/li>\r\n \t<li>Superior seating faces: Seats CoCr alloy hardfaced and the wedge is solid CoCr alloy.<\/li>\r\n \t<li>Each valve is tested per API 598.<\/li>\r\n \t<li>Every bellow assembly is helium leak-tested to assure zero leakage.<\/li>\r\n \t<li>Non-rotating stems prevent torsion of bellow.<\/li>\r\n \t<li>Secondary stem seals include:<\/li>\r\n \t<li>Stem backseat<\/li>\r\n \t<li>API 624 stem packing<\/li>\r\n \t<li>Lubricant fittings to ensure proper lubrication of stem bushing for efficient opening and closing.<\/li>\r\n \t<li>Multiple bellows materials are available: 316Ti, Hastelloy, Inconel, Monel, etc.<\/li>\r\n \t<li>All bellows are hydroformed with a minimum of two layers.<\/li>\r\n \t<li>Available in pressure classes 150-1500 (All body materials available)<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Applications of Bellow Sealed Gate Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe hot oil system, steam system, hot and cold water system, etc.\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":5,"filter":"raw"},{"term_id":2684,"name":"Bellows Seal Globe Valve","slug":"bellows-seal-globe-valve","term_group":0,"term_taxonomy_id":2684,"taxonomy":"post_tag","description":"","parent":0,"count":4,"filter":"raw"},{"term_id":2687,"name":"China Bellows Seal Globe Valve","slug":"china-bellows-seal-globe-valve","term_group":0,"term_taxonomy_id":2687,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_3a9674-b3\"} \/-->\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 BELLOW SEAL GLOBE VALVE 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-bellow-seal-globe-valve\">What is Bellow Seal Globe Valve?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA Bellows Valve is a specially designed valve suitable for use in industries dealing with a hazardous medium where even minute leakages can be extremely critical. With the exponential growth of new industries such as the chemical and nuclear industries, there is a growing abundance of flammable, hazardous, extremely poisonous, and toxic media flowing through the pipelines. This creates a high risk of leakage, explosion, and health hazards. So, the valves used in such pipes and systems have specific stringent leakage and sealing requirements.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe need for a completely different approach required for the desired sealing &amp; redundancy has led to the development of Bellow seal globe Valves.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Features of Bellow Seal Globe Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul><!-- wp:list-item -->\r\n \t<li>Long cycle life bellows (10,000 cycles): Designed and qualification tested for high pressure\/temperature applications.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Bellows monitoring port (optional): A plug can be connected to the space above the bellows to monitor performance.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Two secondary stem seals: a) Backseat in an open position; b) Graphite packing.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Superior seating faces: Seats hard faced with CoCr alloy, and the disc is solid CoCr alloy.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Technical Specifications of Bellow Seal Globe Valve<\/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>TYPE OF DISC<\/td>\r\n<td>Plug\r\nNeedle\r\nSwivel\r\nRegulating Disc<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>CONSTRUCTION<\/td>\r\n<td>Bolted\r\nWelded\r\nExtended\r\nPressure Seal Bonnet<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>PATTERN<\/td>\r\n<td>Straight\r\nAngle\r\nY-type<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>END CONNECTIONS<\/td>\r\n<td>Flanged\r\nBW\r\nSW\r\nTHR<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>OPTIONS<\/td>\r\n<td>Extended Bonnet\r\nBellow Sealed\r\nHeating Jacket\r\nScrew-Down\/Non-Return<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>OPERATED<\/td>\r\n<td>Handwheel\r\nActuator Operated\r\nBare Stem<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>BELLOW SEAL MATERIALS<\/td>\r\n<td>304\r\n321\r\n316Ti\r\nAlloy 625\r\nC276<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>DESIGN &amp; TESTING<\/td>\r\n<td>All available international standards according to API, EN, ISO\r\nFire safe design<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>SIZE &amp; BORE<\/td>\r\n<td>ANSI 1\/4 \u2013 16\u201d\r\nDN 6 \u2013 DN 400<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>PRESSURE RANGE<\/td>\r\n<td>ANSI 125 \u2013 4,500 lbs.\r\nDIN PN 10 \u2013 PN 400<\/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>Applications of Bellows Seal Globe Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nBellow sealed globe valves can be deployed for a wide variety of applications in the oil &amp; gas and petrochemical industries when high quality, reliable valves are required. A few example applications include:\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul><!-- wp:list-item -->\r\n \t<li>High-temperature services<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>High-cycle and switching services<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Emergency shutdown valves<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>High-integrity pressure protection system<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>High-pressure oxygen, nitrogen, or hydrogen<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Solids handling (powders, fines, dust, and catalysts)<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Polyethylene or polypropylene<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Coal conversion, and gasification<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Thermal fluids<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Separator, filter, and drying systems<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Compressor stations<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>On\/off isolation service<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- wp:list-item -->\r\n<ul>\r\n \t<li style=\"list-style-type: none\">\r\n<ul>\r\n \t<li>Oil &amp; gas manifolds<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list-item -->\r\n\r\n<!-- \/wp:list -->","parent":0,"count":5,"filter":"raw"},{"term_id":3557,"name":"steam bellows seal globe valve","slug":"steam-bellows-seal-globe-valve","term_group":0,"term_taxonomy_id":3557,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}],"post_tag":[{"value":3108,"label":"bellow seal gate valve"},{"value":2683,"label":"Bellow Seal Globe Valve"},{"value":3556,"label":"bellow seal valve"},{"value":3110,"label":"Bellows Seal Gate Valve"},{"value":2684,"label":"Bellows Seal Globe Valve"},{"value":2687,"label":"China Bellows Seal Globe Valve"},{"value":3557,"label":"steam bellows seal globe valve"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bellow Seal Valves - Bellows Seal Globe Valve | Bellow Seal Gate Valve | 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\/pt\/bellow-seal-valvesgateglobe-valve.html\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bellow Seal Valves - Bellows Seal Globe Valve | Bellow Seal Gate Valve | ZECO\" \/>\n<meta property=\"og:description\" content=\"ZECO Valve manufactures high-quality bellows sealed globe valves. 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