{"id":2702,"date":"2021-12-29T04:04:30","date_gmt":"2021-12-29T04:04:30","guid":{"rendered":"https:\/\/zecovalve.com\/pros-and-cons-of-diaphragm-valve-and-globe-valve-zeco-valve.html"},"modified":"2022-10-31T07:46:27","modified_gmt":"2022-10-31T07:46:27","slug":"pros-and-cons-of-diaphragm-valve-and-globe-valve-zeco-valve","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/pt\/pros-and-cons-of-diaphragm-valve-and-globe-valve-zeco-valve.html","title":{"rendered":"Tudo o que voc\u00ea precisa saber sobre a v\u00e1lvula de diafragma \u2013 Fun\u00e7\u00e3o da v\u00e1lvula de diafragma"},"content":{"rendered":"<p>As v\u00e1lvulas de diafragma consistem em um corpo de v\u00e1lvula com duas ou mais portas, um diafragma e uma \u201crepresa ou sela\u201d ou sede sobre a qual o diafragma fecha a v\u00e1lvula. A v\u00e1lvula diafragma foi inicialmente desenvolvida para aplica\u00e7\u00f5es industriais e \u00f3rg\u00e3os de tubos. Mais tarde, o design foi adaptado para uso na ind\u00fastria biofarmac\u00eautica, utilizando materiais compat\u00edveis que podem resistir a m\u00e9todos de higieniza\u00e7\u00e3o e esteriliza\u00e7\u00e3o. Al\u00e9m disso, as v\u00e1lvulas de diafragma sanit\u00e1rias s\u00e3o especialmente projetadas com os mais altos padr\u00f5es para aplica\u00e7\u00f5es na fabrica\u00e7\u00e3o de medicamentos e alimentos.<\/p>\n\n\n\n\n\n<h2 class=\"gb-headline gb-headline-4f68b528 gb-headline-text\">O que \u00e9 uma v\u00e1lvula de diafragma?<\/h2>\n\n\n\n<p>As v\u00e1lvulas de diafragma s\u00e3o v\u00e1lvulas aceleradoras bidirecionais liga-desliga. Eles s\u00e3o usados para controlar o fluxo de fluido regulando a \u00e1rea com a qual o meio pode entrar e sair da v\u00e1lvula, alterando efetivamente sua velocidade e velocidade. S\u00e3o chamadas de v\u00e1lvulas de \u201cdiafragma\u201d porque uma membrana fina e flex\u00edvel \u00e9 usada para controlar a abertura e o fechamento da v\u00e1lvula. Eles podem ser feitos de metal como a\u00e7o inoxid\u00e1vel, pl\u00e1stico e at\u00e9 materiais descart\u00e1veis. As v\u00e1lvulas de diafragma s\u00e3o como v\u00e1lvulas de mangote, mas usam um compressor linear que empurra o diafragma fino em contato com o corpo da v\u00e1lvula. Eles oferecem controle de press\u00e3o discreto e vari\u00e1vel e podem ser acionados manual e automaticamente. As v\u00e1lvulas de diafragma s\u00e3o v\u00e1lvulas limpas, \u00e0 prova de vazamentos, f\u00e1ceis de manter, seguras e eficazes, mais adequadas para aplica\u00e7\u00f5es de press\u00e3o e temperatura moderadas que exigem controle de fluido de parada\/partida.<\/p>\n\n\n\n<h2 class=\"gb-headline gb-headline-696d6810 gb-headline-text\">Como funciona uma v\u00e1lvula de diafragma?<\/h2>\n\n\n\n<p>Sua opera\u00e7\u00e3o n\u00e3o \u00e9 diferente de controlar o fluxo de \u00e1gua atrav\u00e9s de uma mangueira flex\u00edvel apertando a mangueira. Essas v\u00e1lvulas s\u00e3o adequadas para fluxos contendo part\u00edculas s\u00f3lidas, como lamas, embora possa ser dif\u00edcil conseguir um estrangulamento preciso devido \u00e0 elasticidade do diafragma.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"618\" height=\"248\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/diaphragm-valvesad2dd694715949b6a6c1358071f855ab.webp\" alt=\"\" class=\"wp-image-17980\"\/><\/figure>\n<\/div>\n\n\n<h2 class=\"gb-headline gb-headline-fb2b7231 gb-headline-text\">Tipos de v\u00e1lvulas de diafragma<\/h2>\n\n\n\n<h3 class=\"gb-headline gb-headline-744f92a9 gb-headline-text\">V\u00e1lvula de diafragma tipo fio<\/h3>\n\n\n\n<p>Os projetos dispon\u00edveis mais comuns s\u00e3o a v\u00e1lvula de diafragma do tipo vertedor. A configura\u00e7\u00e3o de l\u00e1bio\/sela elevado para controle de fluxo limitado \u00e9 idealmente adequada e vaza com seguran\u00e7a gra\u00e7as \u00e0 tampa sobre o diafragma e o atuador. Este design \u00e9 adequado para gases e l\u00edquidos nocivos ou corrosivos, pois esta tampa evita qualquer ruptura da membrana. Como elemento integrado do corpo da v\u00e1lvula, \u00e9 fornecido um a\u00e7ude. O vertedouro serve como sede da v\u00e1lvula para comprimir o diafragma e evitar o surto. O corpo inclinado muitas vezes drena naturalmente esta v\u00e1lvula, embora possa ocorrer em ambas as dire\u00e7\u00f5es e com certos usos, o que pode n\u00e3o ser desej\u00e1vel. Geralmente, este tipo de v\u00e1lvula diafragma \u00e9 fabricada em tamanhos grandes. O a\u00e7ude elevado diminui a quantidade de movimento do diafragma da posi\u00e7\u00e3o completamente aberta para a posi\u00e7\u00e3o completamente fechada, diminuindo assim a quantidade de deforma\u00e7\u00e3o e tens\u00e3o no diafragma. Para fluidos suaves e homog\u00eaneos, a v\u00e1lvula do tipo vertedor \u00e9 frequentemente usada, pois lamas viscosas e sedimentos podem se acumular em ambos os lados da sela. Em processos como alimentos\/produtos qu\u00edmicos, processamento de g\u00e1s, aplica\u00e7\u00f5es corrosivas e de \u00e1gua, eles s\u00e3o mais comumente encontrados.<\/p>\n\n\n\n<h3 class=\"gb-headline gb-headline-8b081bcd gb-headline-text\">V\u00e1lvula de diafragma direta<\/h3>\n\n\n\n<p>A v\u00e1lvula de diafragma direta \u00e9 semelhante em apar\u00eancia \u00e0s do tipo vertedor; mas n\u00e3o inclui a sela t\u00edpica e, em vez disso, tem uma pista reta. Normalmente suas membranas s\u00e3o mais compactas e permitem uma passagem maior, j\u00e1 que o fundo da v\u00e1lvula deve ser tocado. Quando a v\u00e1lvula direta est\u00e1 aberta, para fluxo aerodin\u00e2mico m\u00e1ximo em qualquer dire\u00e7\u00e3o, o diafragma sobe alto. Quando a v\u00e1lvula est\u00e1 fechada, mesmo com material grosso ou fibroso na linha, o diafragma veda hermeticamente para uma veda\u00e7\u00e3o positiva. Estas v\u00e1lvulas tamb\u00e9m devem ser reparadas porque, devido \u00e0s suas membranas mais compactas, a sua vida \u00fatil \u00e9 normalmente menor do que os projetos do tipo vertedor. Para lamas, \u00f3leos viscosos e outras condi\u00e7\u00f5es, onde o bloqueio deve ser minimizado, s\u00e3o frequentemente utilizadas v\u00e1lvulas de diafragma de passagem direta. Na ind\u00fastria de bebidas, o tipo de v\u00e1lvula de passagem total \u00e9 mais comumente usado. Permite a limpeza com escova esf\u00e9rica, sem abrir ou retirar a v\u00e1lvula da linha, com vapor ou soda c\u00e1ustica. Eles tamb\u00e9m s\u00e3o adequados para regimes de fluxo bidirecionais, uma vez que n\u00e3o h\u00e1 sela para evitar a transi\u00e7\u00e3o repentina da entrada para a sa\u00edda.<\/p>\n\n\n\n<h2 class=\"gb-headline gb-headline-03dcf478 gb-headline-text\">Fun\u00e7\u00e3o da v\u00e1lvula de diafragma<\/h2>\n\n\n\n<p>O diafragma \u00e9 conectado a um compressor por um pino moldado no diafragma. Para iniciar ou aumentar o fluxo, o compressor \u00e9 movido pela haste da v\u00e1lvula. Para interromper ou diminuir o fluxo, o compressor \u00e9 abaixado e o diafragma \u00e9 pressionado contra a parte inferior da v\u00e1lvula. As v\u00e1lvulas diafragma s\u00e3o excelentes para controlar o fluxo de fluidos contendo s\u00f3lidos em suspens\u00e3o e oferecem a flexibilidade de serem instaladas em qualquer posi\u00e7\u00e3o. As v\u00e1lvulas de diafragma do tipo Weir s\u00e3o melhores no estrangulamento do que as v\u00e1lvulas de diafragma retas porque a grande \u00e1rea de fechamento do projeto ao longo da sede confere-lhe as caracter\u00edsticas de uma v\u00e1lvula de abertura r\u00e1pida. O diafragma atua como gaxeta da v\u00e1lvula para vedar vazamentos entre o corpo e a tampa do castelo.<\/p>\n\n\n\n<p>As v\u00e1lvulas de diafragma usam um corpo de v\u00e1lvula de revestimento resistente \u00e0 corros\u00e3o e um diafragma resistente \u00e0 corros\u00e3o para substituir os componentes do obturador da v\u00e1lvula e controlar o meio movendo o diafragma. Quando o diafragma \u00e9 levantado, a passagem se abre; quando o diafragma \u00e9 abaixado, ele \u00e9 pressionado contra o corpo da v\u00e1lvula e a v\u00e1lvula \u00e9 fechada.<\/p>\n\n\n\n<figure class=\"wp-block-image\" id=\"attachment_283\"><img decoding=\"async\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2021\/12\/20211229040429-61cbde4d9a953.gif\" alt=\"como funciona a v\u00e1lvula diafragma\" class=\"wp-image-283\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-advantages-of-diaphragm-valve\">Vantagens da v\u00e1lvula de diafragma<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>1) Estrutura simples, composta por apenas tr\u00eas partes: corpo da v\u00e1lvula, diafragma e tampa<\/li><li>2) Durante a opera\u00e7\u00e3o, o meio entra em contato apenas com o diafragma, portanto a v\u00e1lvula n\u00e3o \u00e9 facilmente contaminada.<\/li><li>3) Adequado para transportar l\u00edquidos corrosivos e viscosos<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-disadvantages-of-diaphragm-valve\">Desvantagens da v\u00e1lvula de diafragma<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>1) N\u00e3o \u00e9 adequado para di\u00e2metros de tubos maiores<\/li><li>2) Fraca resist\u00eancia \u00e0 press\u00e3o e resist\u00eancia \u00e0 temperatura<\/li><\/ul>\n\n\n\n<h2 class=\"gb-headline gb-headline-7399b883 gb-headline-text\">Material de constru\u00e7\u00e3o do diafragma<\/h2>\n\n\n\n<p>Os diafragmas podem ser feitos de uma variedade de materiais. A escolha do material \u00e9 baseada na natureza do material manuseado, temperatura, press\u00e3o e frequ\u00eancia de opera\u00e7\u00e3o. Os materiais elastom\u00e9ricos do diafragma s\u00e3o altamente resistentes a produtos qu\u00edmicos em altas temperaturas. No entanto, as propriedades mec\u00e2nicas dos materiais elastom\u00e9ricos ser\u00e3o enfraquecidas a uma temperatura mais elevada (acima de 150\u00b0F). A alta press\u00e3o tamb\u00e9m pode destruir o diafragma. Outro fator que pode afetar a fun\u00e7\u00e3o do diafragma \u00e9 a concentra\u00e7\u00e3o do meio que ele ir\u00e1 manipular. O material pode apresentar resist\u00eancia \u00e0 corros\u00e3o satisfat\u00f3ria a certos corrosivos at\u00e9 uma concentra\u00e7\u00e3o e\/ou temperatura espec\u00edfica. Exemplos de materiais de diafragma e suas especifica\u00e7\u00f5es podem ser vistos na tabela abaixo.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Material<\/strong><\/td><td><strong>Tamanho<\/strong><\/td><td>&nbsp;<\/td><td><strong>Temperatura<\/strong><\/td><td>&nbsp;<\/td><td><strong>Formul\u00e1rios<\/strong><\/td><\/tr><tr><td>&nbsp;<\/td><td>polegadas<\/td><td>mil\u00edmetros<\/td><td>\u00b0F<\/td><td>\u00baC<\/td><td>&nbsp;<\/td><\/tr><tr><td>Borracha but\u00edlica<\/td><td>0.6 - 14<\/td><td>15 - 350<\/td><td>\u2013 22 a 134<\/td><td>\u2013 30 a 90<\/td><td>\u00c1cidos e \u00e1lcalis<\/td><\/tr><tr><td>Borracha nitr\u00edlica<\/td><td>0.6 - 14<\/td><td>15 - 350<\/td><td>14 a 134<\/td><td>-10 a 90<\/td><td>\u00d3leos, gorduras e combust\u00edveis<\/td><\/tr><tr><td>Neoprene<\/td><td>0.6 - 14<\/td><td>15 - 350<\/td><td>\u2013 4 a 134<\/td><td>\u2013 20 a 90<\/td><td>\u00d3leos, graxas, ar e fluidos radioativos<\/td><\/tr><tr><td>Borracha natural\/sint\u00e9tica<\/td><td>0.6 - 14<\/td><td>15 - 350<\/td><td>\u2013 40 a 134<\/td><td>\u2013 40 a 90<\/td><td>Abrasivos, cerveja e \u00e1cidos minerais dilu\u00eddos<\/td><\/tr><tr><td>Borracha natural branca<\/td><td>0.6 - 5<\/td><td>15 - 125<\/td><td>\u2013 31 a 134<\/td><td>\u2013 35 a 90<\/td><td>Alimentos e produtos farmac\u00eauticos<\/td><\/tr><tr><td>Butil branco<\/td><td>0.6 - 6<\/td><td>15 - 150<\/td><td>\u2013 22 a 212<\/td><td>\u2013 30 a 100<\/td><td>Cor natural, alimentos, pl\u00e1sticos e produtos farmac\u00eauticos<\/td><\/tr><tr><td>Viton<\/td><td>0.6 - 14<\/td><td>15 - 350<\/td><td>41 a 284<\/td><td>5 a 140<\/td><td>Aplica\u00e7\u00f5es de \u00e1cidos hidrocarbonados, enxofre e cloro<\/td><\/tr><tr><td>Hipalon<\/td><td>0.6 - 14<\/td><td>15 - 350<\/td><td>32 a 134<\/td><td>0 a 90<\/td><td>Resistente a \u00e1cidos e oz\u00f4nio<\/td><\/tr><tr><td>Borracha but\u00edlica<\/td><td>0.6 - 14<\/td><td>15 - 350<\/td><td>\u2013 4 a 248<\/td><td>\u2013 20 a 120<\/td><td>Servi\u00e7os de \u00e1gua quente e vapor intermitente, refino de a\u00e7\u00facar<\/td><\/tr><\/tbody><\/table><\/figure>\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\/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\/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\/history-of-automatic-control-valve-zeco-valve-industrial-valve-manufacturer.html\/\">O que s\u00e3o v\u00e1lvulas de controlo autom\u00e1ticas?<\/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<p>Dez artigos antes e depois<\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/an-overview-of-sanitary-control-valve.html\/\">V\u00e1lvulas Sanit\u00e1rias para Fabrica\u00e7\u00e3o de Perfumes Industriais<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/how-to-maintain-the-sanitary-diaphragm-valves-zeco-valve.html\/\">Como fazer a manuten\u00e7\u00e3o das v\u00e1lvulas de diafragma sanit\u00e1rias? \u2013 V\u00e1lvula Zeco<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/press-drop-an-important-selection-criteria-for-choosing-control-valves-zeco-valve.html\/\">Press Drop: um importante crit\u00e9rio de sele\u00e7\u00e3o para a escolha de v\u00e1lvulas de controle \u2013 Zeco Valve<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/maintenance-of-sanitary-pneumatic-ball-valve-zeco-valve.html\/\">Manuten\u00e7\u00e3o de V\u00e1lvula Esfera Pneum\u00e1tica Sanit\u00e1ria \u2013 V\u00e1lvula Zeco<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/how-does-sanitary-ball-valve-work-zeco-valve.html\/\">Como funciona a v\u00e1lvula de esfera sanit\u00e1ria? \u2013 V\u00e1lvula Zeco<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/sanitary-ball-valve-image-gallery-zeco-valve.html\/\">Galeria de imagens de v\u00e1lvulas de esfera sanit\u00e1ria - V\u00e1lvula Zeco<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/categories-of-pressure-relief-valves-and-their-applications-zeco-valve.html\/\">Categorias de v\u00e1lvulas de al\u00edvio de press\u00e3o e suas aplica\u00e7\u00f5es \u2013 V\u00e1lvula Zeco<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/differences-between-sanitary-valves-and-industrial-valves.html\/\">Diferen\u00e7as entre v\u00e1lvulas sanit\u00e1rias e v\u00e1lvulas industriais<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/sanitary-diaphragm-valve-image-gallery-zeco-valve.html\/\">Galeria de imagens da v\u00e1lvula de diafragma sanit\u00e1ria - V\u00e1lvula Zeco<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/zecovalve.com\/pt\/4-metrics-for-the-quality-of-sanitary-pneumatic-ball-valves-zeco-valve.html\/\">4 M\u00e9tricas para Qualidade de V\u00e1lvulas Esfera Pneum\u00e1ticas Sanit\u00e1rias \u2013 V\u00e1lvula Zeco<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>As v\u00e1lvulas de diafragma consistem em um corpo de v\u00e1lvula com duas ou mais portas, um diafragma e uma \u201crepresa ou sela\u201d ou sede sobre\u2026 <a title=\"Tudo o que voc\u00ea precisa saber sobre a v\u00e1lvula de diafragma \u2013 Fun\u00e7\u00e3o da v\u00e1lvula de diafragma\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/pt\/pros-and-cons-of-diaphragm-valve-and-globe-valve-zeco-valve.html\" aria-label=\"Mais em Tudo o que voc\u00ea precisa saber sobre v\u00e1lvula de diafragma \u2013 Fun\u00e7\u00e3o da v\u00e1lvula de diafragma\">Ler mais<\/a><\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1],"tags":[2702,2704,2703,3205],"class_list":["post-2702","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-diaphragm-valve","tag-diaphragm-valve-diagram","tag-diaphragm-valve-function","tag-diaphragm-valve-manufacturers","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":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":2702,"name":"Diaphragm Valve","slug":"diaphragm-valve","term_group":0,"term_taxonomy_id":2702,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"},{"term_id":2704,"name":"diaphragm valve diagram","slug":"diaphragm-valve-diagram","term_group":0,"term_taxonomy_id":2704,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"},{"term_id":2703,"name":"Diaphragm Valve Function","slug":"diaphragm-valve-function","term_group":0,"term_taxonomy_id":2703,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_7d0b55-1a\"} \/-->\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=\"https:\/\/zecovalve.com\/contact\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET DIAPHRAGM VALVE DIAGRAM INFORMATION<\/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-a-diaphragm-valve\">What is a Diaphragm Valve?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nDiaphragm valves get their name from a flexible disc that comes into contact with a seat at the top of the valve body to form a seal. A diaphragm is a flexible, pressure-responsive element that transmits force to open, close, or control a valve. Diaphragm valves are related to pinch valves, but use an elastomeric diaphragm, instead of an elastomeric liner in the valve body, to separate the flow stream from the closure element.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:image {\"align\":\"center\",\"id\":19395,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\r\n<figure class=\"wp-block-image aligncenter size-full\"><img class=\"wp-image-19395\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/20220708083634-62c7ec92aba44.jpg\" alt=\"\" \/><\/figure>\r\n<!-- \/wp:image -->\r\n\r\n<!-- wp:heading -->\r\n<h2>How do Diaphragm Valves Work?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nDiaphragm valves are simple in construction and operation. A valve actuator is in contact with the inner membrane (or \u201cdiaphragm\u201d) of the valve in its open position. When the user desires the valve to be shut, the actuator is pressed and\/or turned and the membrane is pushed into the edge of the solid damn, closing the valve. Certain diaphragm valves can also have half open\/restricted positions where the membrane is partially closed, allowing a throttled flow through the valve. In the next section, we will examine the broad categories of diaphragm valves and where they are most useful.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Types of Diaphragm Valves<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Weir-Type Diaphragm Valves<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe weir-type diaphragm valve is one of the most common designs available and is what is shown in Figure 2, above. The raised lip\/saddle design is best suited for small flow control and is kept leak-proof thanks to the bonnet over the diaphragm and actuator. This design is optimal for dangerous or corrosive liquid and gas, as any failure with the membrane will be kept contained by this bonnet. Also, the sloped body makes this valve inherently self-draining, but this draining can happen in both valve directions which may not be optimal for some applications. The weir-type valve is mostly specified for clean, homogenous fluids, as viscous slurries and sediments may build up on either side of the saddle. They are most often found in processes such as food\/chemical, gas production, corrosive, and water applications.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Straight Through Type Diaphragm Valves<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe straight-through diaphragm valve is structurally similar to weir-types; however, it does not contain the characteristic saddle and instead has a completely straight pathway. Their membranes are typically more flexible and allow for farther travel distance, as it must touch the very bottom of the valve. These valves must often be serviced\/replaced, as their lifespan is typically less than weir-type designs due to their more flexible membranes. Straight-through diaphragm valves are used for slurries, viscous fluids, and other applications where blocking must be reduced. They are also useful for bi-directional flow regimes, as there is no saddle to impede swift changing from inlet to outlet.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Diaphragm Valve Parts<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe components of diaphragm valves are the following:\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Diaphragm Valve Bonnet<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe bonnet serves as the top cover and is bolted to the valve body. It protects the compressor, stem, diaphragm, and other non-wetted components of the diaphragm valve.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Diaphragm Valve Body<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe valve body is the component directly connected to the pipeline wherein the fluid passes. The flow area inside the valve body depends on the type of diaphragm valve.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nBoth the valve body and bonnet are constructed from strong, rigid, and corrosive resistant materials.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Diaphragm Valve Diaphragm<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe diaphragm is made from a highly elastic polymeric disc that moves down to touch the bottom of the valve body to limit or obstruct the passage of fluid. The diaphragm lifts if the fluid flow rate is to be increased or the valve is to be fully opened. The fluid flows underneath the diaphragm. However, this component limits the valve\u2019s operating temperature and pressure due to the diaphragm\u2019s material and structure. It must also be replaced periodically since its mechanical properties degrade during usage.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe diaphragm isolates the non-wetted components (compressor, stem, and actuator) from the flowing media. Therefore, solids and viscous fluids are less likely to interfere with the operating mechanism of the diaphragm valve. This also protects the non-wetted components from corrosion. Conversely, the fluid in the pipeline will not be contaminated with the lubricant used in operating the valve.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":4} -->\r\n<h4>Material of Diaphragm Valve Diaphragm<\/h4>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<strong>Unlined or Rubber Lined Type<\/strong>\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>NR\/Natural Rubber<\/li>\r\n \t<li>NBR\/Nitrile\/Buna-N<\/li>\r\n \t<li>EPDM<\/li>\r\n \t<li>FKM\/Viton<\/li>\r\n \t<li>BUNA-N<\/li>\r\n \t<li>SI\/Silicone rubber<\/li>\r\n \t<li>Leather<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\n<strong>Fluorine Plastic Type<\/strong>\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>FEP, with EPDM backing<\/li>\r\n \t<li>PTFE, with EPDM backing<\/li>\r\n \t<li>PFA, with EPDM backing<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Diaphragm Valve Compressor<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe compressor is a disc that lies between the valve stem and the diaphragm. It supports the diaphragm valve and distributes the forces from the stem during linear movement. The compressor design is optimized to provide better flow throttling and control.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Diaphragm Valve Stem<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe stem is a vertical shaft connected to the compressor that exerts linear motion to move both compressor and diaphragm, thus operating the diaphragm valve. It transmits the motion exerted by the actuator. Diaphragm valves can either have piston- or threaded-type stems. As the name implies, piston-type valves are moved by a piston assembly inside the bonnet, with the valve stem likely acting as the piston rod. This type requires linear force exerted by fluid pressure. Threaded stem valves have a matching stem nut. This type requires torque to linearly move the stem, as well as lubrication for smooth motion.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe threaded stems of diaphragm valves can have a rising or non-rising mechanism:\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li><strong>Rising Stem<\/strong>: Rising stems or indicating stems extend their length up to the handwheel. As the handwheel is turned, the stem rises or descends to open or close the valve, respectively. Hence, it is easier to determine the extent to which the valve is opened by looking at the amount of stem exposed. However, rising stems take up more space than non-rising stems.<\/li>\r\n \t<li><strong>Non-Rising Stem:<\/strong> Non-rising stems or non-indicating stems are rotated to open or close the valve, but it does not cause the stem to move up or down. Non-rising stem valves are used in limited spaces, such as in underground piping systems.<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Advantages and Disadvantages of Diaphragm Valves<\/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><strong>Advantages<\/strong><\/td>\r\n<td><strong>Disadvantages<\/strong><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Extremely clean<\/td>\r\n<td>Can only be used at moderate temperatures (-60 to 450\u00baF)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Leak proof seal<\/td>\r\n<td>Can only be used in moderate pressures (approximately 300psi)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Tight shut-off<\/td>\r\n<td>Cannot be used in multi-turn operations<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Easy maintenance<\/td>\r\n<td>No industry standard face-to-face dimensions<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Repairs can be made without interrupting the pipeline<\/td>\r\n<td>The body must be made of corrosive resistant material<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Reduce leakage to the environment<\/td>\r\n<td><\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n<!-- \/wp:table -->","parent":0,"count":2,"filter":"raw"},{"term_id":3205,"name":"Diaphragm Valve Manufacturers","slug":"diaphragm-valve-manufacturers","term_group":0,"term_taxonomy_id":3205,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_e83080-b5\"} \/-->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nZECO Valves is a High-Quality Diaphragm Valves Manufacturer in China. We are a leading manufacturer of Diaphragm Valves. Our Diaphragm Valves are manufactured according to International ASTM ANSI Standards, ASTM API Standards, and ASTM DIN Standards in India. Mail us for Easy and Quick Quotes at Factory Prices.\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 DIAPHRAGM VALVE MANUFACTURERS INFORMATION<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Description of Diaphragm Valves<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nDiaphragm Valves consist of a Valves body with two or more ports, a diaphragm, and a \"weir or saddle\" or seat upon which the Diaphragm closes the valve. The basic construction of the Diaphragm Valves is quite simple. It is composed of three principal units called Body, Bonnet, and Diaphragm.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nDiaphragm Valves are particularly designed for handling Corrosive, Abrasives, Viscous or Fibrous Fluids.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Advantages of Diaphragm Valves<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>The most economical corrosion-free and resisting Valves available today.<\/li>\r\n \t<li>Adaptable Body and Diaphragm materials.<\/li>\r\n \t<li>Permanent air tightness against fiber and gases Resilient closure.<\/li>\r\n \t<li>No contamination. The most suitable for Nuclear &amp; Food Services.<\/li>\r\n \t<li>No Gland packing.<\/li>\r\n \t<li>Simple in-line maintenance.<\/li>\r\n \t<li>Easy dismantling and assembly are possible without removing the body from the pipeline.<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Specifications of Diaphragm Valves<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Flange Drilling : ANSI B 16.5 \/ BS 10 Table \/ DIN \/ JIS<\/li>\r\n \t<li>Butt Weld End: ANSI B16.25<\/li>\r\n \t<li>SW Ends: ANSI B 16.11<\/li>\r\n \t<li>Testing: BS 6755-1<\/li>\r\n \t<li>Pressure -Temperature Rating: ASTM B 16.34<\/li>\r\n \t<li>Size : 1\" - 10\" (25mm - 250mm)<\/li>\r\n \t<li>Desige Code : BS 5156<\/li>\r\n \t<li>Pressure Rating: PN 6 - PN 16<\/li>\r\n \t<li>MAT. OF CON. : CI \/ CS \/ SS \/ Alloys \/ Monel \/ Hastelloy MOC<\/li>\r\n \t<li>Actuation: Handle Wheel, Pneumatic Cylinder<\/li>\r\n \t<li>Body Lining : EPDM \/ Ebonite \/ Neoprene \/ FRP \/ PTFE<\/li>\r\n \t<li>Body Diaphragm : EPDM \/ Ebonite \/ Neoprene \/ FRP \/ PTFE<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Maintenance of Diaphragm Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nMaintenance of Diaphragm Valves is very simple. By dismantling the Bonnet from the Body, the whole Trim Assembly can be taken out for cleaning and maintenance while the Body will remain in the Pipeline. Hence the design allows maintenance to save time and energy. Its linear flow characteristics make it perfect for throttling or modulating operations. On\/off and control, automation is supplied with Pneumatic Actuators or Cylinders.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Diaphragm Valve Manufacturers<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Burkert Fluid Control Systems<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nBurkert Fluid Control Systems is a global process supplier of high-quality customized fluid control systems and products, including diaphragm valves. Some of our products include dual weirs, zero static tee valves, and more. For additional information, please visit our website. Burkert is one of the world's top companies for measurement, control, and regulation technology.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>International Polymer Solutions<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nWe make a wide range of products that are engineered solutions for you! Our diaphragm valves are number one in the industry when it comes to quality and production time. Our objective is to make sure that you have a versatile product to get the job done. All of our products are guaranteed high quality!\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Yamada America, Inc.<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nYamada\u00ae Corporation has been a leading producer of fluid-handling products for over 60 years. As a leader in pneumatic pumping technology, Yamada\u00ae is known in industries worldwide for its innovative products, superior quality, and unmatched reliability. Yamada\u2019s ISO 9001 certification ensures quality procedures for manufacturing bellows pumps, dampeners, and more.\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":3,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}],"post_tag":[{"value":2702,"label":"Diaphragm Valve"},{"value":2704,"label":"diaphragm valve diagram"},{"value":2703,"label":"Diaphragm Valve Function"},{"value":3205,"label":"Diaphragm Valve Manufacturers"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>All You Need to Know About Diaphragm valve - Diaphragm Valve Function<\/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\/pros-and-cons-of-diaphragm-valve-and-globe-valve-zeco-valve.html\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"All You Need to Know About Diaphragm valve - Diaphragm Valve Function\" \/>\n<meta property=\"og:description\" content=\"Diaphragm valves consists of a valve body with two or more ports, a diaphragm, and a \u201cweir or saddle\u201d or seat upon ... 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