{"id":16058,"date":"2025-05-27T07:36:45","date_gmt":"2025-05-27T07:36:45","guid":{"rendered":"https:\/\/hydraflu.com\/?p=16058"},"modified":"2025-05-27T07:36:45","modified_gmt":"2025-05-27T07:36:45","slug":"proportional-valves-and-their-importance-in-hydraulic-systems","status":"publish","type":"post","link":"https:\/\/hydraflu.com\/pt\/valvulas-proporcionais-e-sua-importancia-em-sistemas-hidraulicos\/","title":{"rendered":"V\u00e1lvulas proporcionais e sua import\u00e2ncia em sistemas hidr\u00e1ulicos"},"content":{"rendered":"<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Operar m\u00e1quinas hidr\u00e1ulicas pode coloc\u00e1-lo em diversas situa\u00e7\u00f5es que exigem controle preciso. Uma dessas situa\u00e7\u00f5es envolve o levantamento de m\u00e1quinas e mercadorias sens\u00edveis que requerem controle de movimento extremamente preciso (em cent\u00edmetros e mil\u00edmetros). As v\u00e1lvulas hidr\u00e1ulicas proporcionais ajudam a regular o movimento nesse n\u00edvel de precis\u00e3o. Essas v\u00e1lvulas proporcionam um movimento bastante preciso, convertendo sinais de entrada digitais (el\u00e9tricos) em movimento mec\u00e2nico proporcional do elemento da v\u00e1lvula.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">O componente fundamental dessas v\u00e1lvulas \u00e9 um atuador eletromagn\u00e9tico, que posiciona com precis\u00e3o o filamento ou disco da v\u00e1lvula atrav\u00e9s do sinal recebido. Isso permite ao usu\u00e1rio alternar indefinidamente entre uma posi\u00e7\u00e3o totalmente fechada e uma totalmente aberta.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Princ\u00edpio de funcionamento das v\u00e1lvulas proporcionais<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">A etapa crucial na utiliza\u00e7\u00e3o da v\u00e1lvula proporcional \u00e9 a conex\u00e3o da v\u00e1lvula ao sistema de controle que ser\u00e1 operado. Esse sistema precisa enviar um sinal de opera\u00e7\u00e3o para abrir ou fechar a v\u00e1lvula. Al\u00e9m disso, a v\u00e1lvula deve ser instalada na orienta\u00e7\u00e3o correta para garantir o fluxo adequado e a posi\u00e7\u00e3o de montagem correta; caso contr\u00e1rio, ela n\u00e3o funcionar\u00e1 como esperado.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ensure that the control signal is calibrated to correspond with the valve&#8217;s specifications and that the electrical connections are secure. The valve&#8217;s control electronics analyse the input signal you provide and adjust the actuator&#8217;s current accordingly. This generates a magnetic force within the valve, which opposes a spring force and propels the valve element (as illustrated in the image below).<img data-dominant-color=\"ddd8d7\" data-has-transparency=\"false\" style=\"--dominant-color: #ddd8d7;\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16060 not-transparent\" src=\"https:\/\/hydraflu.com\/wp-content\/uploads\/2025\/05\/Counter-Balance-Valve.png\" alt=\"V\u00e1lvula proporcional\" width=\"500\" height=\"371\" srcset=\"https:\/\/hydraflu.com\/wp-content\/uploads\/2025\/05\/Counter-Balance-Valve.png 500w, https:\/\/hydraflu.com\/wp-content\/uploads\/2025\/05\/Counter-Balance-Valve-16x12.png 16w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/span><\/p>\n<p><span style=\"font-weight: 400;\">Essa fun\u00e7\u00e3o proporciona um controle preciso da posi\u00e7\u00e3o. Esse era o princ\u00edpio de funcionamento das v\u00e1lvulas proporcionais b\u00e1sicas, mas tamb\u00e9m existem v\u00e1lvulas proporcionais avan\u00e7adas.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Uma dessas v\u00e1lvulas avan\u00e7adas \u00e9 chamada de controle de malha fechada e \u00e9 respons\u00e1vel por monitorar e ajustar continuamente a posi\u00e7\u00e3o da v\u00e1lvula para manter a sa\u00edda desejada. Mesmo em diversas condi\u00e7\u00f5es do sistema, isso garante que o desempenho seja mantido com precis\u00e3o e consist\u00eancia. O uso de solenoides proporcionais que reagem a sinais el\u00e9tricos vari\u00e1veis, sejam eles de tens\u00e3o ou corrente, tamb\u00e9m contribui para que essas v\u00e1lvulas sejam superiores \u00e0 variante b\u00e1sica. Para um controle de fluxo preciso, isso permite aplicar for\u00e7a vari\u00e1vel para mover o carretel contra uma mola.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Aprimoramentos de design<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Muitos fabricantes incluem pequenos entalhes em V no carretel para reduzir o atraso do fluxo. Esses entalhes garantem um melhor funcionamento, permitindo que o fluido comece a fluir imediatamente assim que o carretel se move. Com o posicionamento infinito do carretel, voc\u00ea pode alterar infinitamente os volumes de fluxo, pois n\u00e3o h\u00e1 um limite fixo de entrada que leve a um volume de sa\u00edda fixo.<\/span><\/p>\n<p><img data-dominant-color=\"dedbda\" data-has-transparency=\"false\" style=\"--dominant-color: #dedbda;\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16061 not-transparent\" src=\"https:\/\/hydraflu.com\/wp-content\/uploads\/2025\/05\/Counter-Balance-Valve-2.png\" alt=\"V\u00e1lvula proporcional \" width=\"500\" height=\"500\" srcset=\"https:\/\/hydraflu.com\/wp-content\/uploads\/2025\/05\/Counter-Balance-Valve-2.png 500w, https:\/\/hydraflu.com\/wp-content\/uploads\/2025\/05\/Counter-Balance-Valve-2-150x150.png 150w, https:\/\/hydraflu.com\/wp-content\/uploads\/2025\/05\/Counter-Balance-Valve-2-12x12.png 12w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<h2><span style=\"font-weight: 400;\">Procedimentos de Instala\u00e7\u00e3o e Configura\u00e7\u00e3o da V\u00e1lvula Proporcional<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Instalando um <\/span><a href=\"https:\/\/en.wikipedia.org\/wiki\/Proportioning_valve\"><span style=\"font-weight: 400;\">v\u00e1lvula proporcional<\/span><\/a><span style=\"font-weight: 400;\"> A instala\u00e7\u00e3o \u00e9 um pouco t\u00e9cnica devido \u00e0s suas conex\u00f5es de controle. Primeiramente, as necessidades de press\u00e3o e vaz\u00e3o do sistema determinar\u00e3o o tipo e o tamanho da v\u00e1lvula a ser utilizada. Para iniciar o processo de instala\u00e7\u00e3o, a v\u00e1lvula deve ser posicionada em um local apropriado dentro do sistema, geralmente um ponto onde a press\u00e3o possa exceder os limites aceit\u00e1veis. A instala\u00e7\u00e3o de v\u00e1lvulas operadas por piloto \u00e9 mais complexa, incluindo a configura\u00e7\u00e3o de linhas piloto externas e a garantia de que as conex\u00f5es de controle estejam firmemente fixadas.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A v\u00e1lvula deve ser testada ap\u00f3s a instala\u00e7\u00e3o e calibra\u00e7\u00e3o para garantir seu funcionamento correto sob press\u00e3o. Normalmente, isso consiste em pressurizar o sistema e observar a resposta da v\u00e1lvula \u00e0s varia\u00e7\u00f5es de press\u00e3o.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Aplica\u00e7\u00f5es e limita\u00e7\u00f5es das v\u00e1lvulas proporcionais<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">As v\u00e1lvulas proporcionais s\u00e3o adequadas para aplica\u00e7\u00f5es em que a press\u00e3o de sa\u00edda varia, seja de forma cont\u00ednua ou em etapas. Por exemplo, a press\u00e3o de sa\u00edda em etapas ocorre quando a press\u00e3o \u00e9 mantida em um valor antes de ser elevada para outro.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Em contrapartida, a press\u00e3o de sa\u00edda constante \u00e9 o processo pelo qual a press\u00e3o aumenta sempre a uma taxa predefinida. Essa caracter\u00edstica distingue as v\u00e1lvulas proporcionais das demais e, portanto, lhes confere aplica\u00e7\u00f5es especiais, como em sistemas de freios ABS. Entre as diversas aplica\u00e7\u00f5es t\u00edpicas, podemos citar:<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Sistemas hidr\u00e1ulicos<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">O controle da press\u00e3o e do fluxo hidr\u00e1ulicos \u00e9 realizado por meio de v\u00e1lvulas proporcionais, que garantem o funcionamento suave e eficaz de m\u00e1quinas como prensas e escavadeiras.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Sistemas Pneum\u00e1ticos<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">As v\u00e1lvulas proporcionais s\u00e3o utilizadas em aplica\u00e7\u00f5es como linhas de montagem automatizadas para regular o fluxo de ar, pois permitem que os atuadores pneum\u00e1ticos sejam ajustados em termos de velocidade e for\u00e7a.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Controle de Processos<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Para controlar as taxas de fluxo e garantir a dosagem adequada ou o gerenciamento da press\u00e3o, as v\u00e1lvulas proporcionais s\u00e3o utilizadas em ind\u00fastrias como a de processamento qu\u00edmico e a de tratamento de \u00e1gua.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Ind\u00fastria Automotiva (Utiliza\u00e7\u00e3o de V\u00e1lvulas Proporcionais em Sistemas de Frenagem ABS)<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Em autom\u00f3veis, as v\u00e1lvulas proporcionais s\u00e3o utilizadas para gerenciar com efic\u00e1cia os sistemas de freio e alterar as caracter\u00edsticas da suspens\u00e3o em tempo real. As v\u00e1lvulas proporcionais foram usadas em <\/span><a href=\"https:\/\/en.wikipedia.org\/wiki\/Anti-lock_braking_system\"><span style=\"font-weight: 400;\">Sistemas de freio antibloqueio<\/span><\/a><span style=\"font-weight: 400;\"> (ABS) e a HCU, como mencionado acima. O recurso de controle por etapas os tornou uma op\u00e7\u00e3o confi\u00e1vel para uso em ABS. No entanto, agora est\u00e3o sendo substitu\u00eddos por sistemas eletr\u00f4nicos, e sistemas hidr\u00e1ulicos est\u00e3o sendo usados em aplica\u00e7\u00f5es de servi\u00e7o pesado.\u00a0<\/span><\/p>\n<p><img data-dominant-color=\"efeeef\" data-has-transparency=\"false\" style=\"--dominant-color: #efeeef;\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16063 not-transparent\" src=\"https:\/\/hydraflu.com\/wp-content\/uploads\/2025\/05\/2.png\" alt=\"v\u00e1lvula de propor\u00e7\u00e3o de frenagem\" width=\"482\" height=\"266\" srcset=\"https:\/\/hydraflu.com\/wp-content\/uploads\/2025\/05\/2.png 482w, https:\/\/hydraflu.com\/wp-content\/uploads\/2025\/05\/2-18x10.png 18w\" sizes=\"auto, (max-width: 482px) 100vw, 482px\" \/><\/p>\n<h3><span style=\"font-weight: 400;\">Outros usos da v\u00e1lvula proporcional<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">As v\u00e1lvulas proporcionais de controle de fluxo s\u00e3o normalmente usadas em sistemas de pulveriza\u00e7\u00e3o de tinta, sistemas de enchimento, distribui\u00e7\u00e3o de fluidos ou controle de fluxo em tanques. As v\u00e1lvulas proporcionais de controle de press\u00e3o s\u00e3o usadas em sistemas de frenagem pneum\u00e1tica, mancais de ar ou moldagem por sopro.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Esses exemplos destacam a flexibilidade das v\u00e1lvulas proporcionais em setores que necessitam de precis\u00e3o, efici\u00eancia e corre\u00e7\u00f5es em tempo real.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Os sistemas de circuito aberto geralmente apresentam v\u00e1lvulas proporcionais para posicionar cilindros com precis\u00e3o ou para acelerar ou desacelerar motores hidr\u00e1ulicos de forma suave. No entanto, eles apresentam algumas desvantagens, incluindo histerese de comuta\u00e7\u00e3o, tempos de resposta relativamente lentos e maior consumo de energia el\u00e9trica.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Qual a diferen\u00e7a entre uma v\u00e1lvula moduladora e uma v\u00e1lvula proporcional?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">O controle de posicionamento de n\u00edvel superior \u00e9 o modulador ou proporcional. A sa\u00edda do controle modulador\/proporcional varia continuamente e n\u00e3o se limita a estar aberta ou fechada. Proporcional implica que a magnitude da sa\u00edda depende da magnitude do comando de entrada. O erro detectado pelo controlador \u00e9 operacionalizado para ser eliminado e garantir um fluxo cont\u00ednuo, permitindo assim uma a\u00e7\u00e3o consistente.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Como realizar a manuten\u00e7\u00e3o e solucionar problemas em v\u00e1lvulas proporcionais<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Para garantir a longevidade e a efic\u00e1cia das v\u00e1lvulas proporcionais, \u00e9 necess\u00e1rio realizar a manuten\u00e7\u00e3o de rotina das mesmas:<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Verifique se h\u00e1 desgaste e deteriora\u00e7\u00e3o, especialmente em veda\u00e7\u00f5es, atuadores e sistemas de feedback.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Mantenha a v\u00e1lvula e a \u00e1rea ao redor limpas para evitar problemas.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Impulsos flutuantes podem causar a\u00e7\u00f5es imprevis\u00edveis nas v\u00e1lvulas, portanto, mantenha os sinais de controle est\u00e1veis e dentro da faixa apropriada.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Lubrifique as partes m\u00f3veis e expostas da v\u00e1lvula de forma adequada e regular para garantir um funcionamento suave, utilizando o \u00f3leo lubrificante recomendado pelo fabricante.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If the valve isn&#8217;t working properly, check for typical faults, including electrical signal errors, valve obstructions, or incorrect calibration.<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\"><img data-dominant-color=\"ebe9e9\" data-has-transparency=\"false\" style=\"--dominant-color: #ebe9e9;\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16064 not-transparent\" src=\"https:\/\/hydraflu.com\/wp-content\/uploads\/2025\/05\/4.png\" alt=\"s\u00edmbolo da v\u00e1lvula proporcional\" width=\"500\" height=\"286\" srcset=\"https:\/\/hydraflu.com\/wp-content\/uploads\/2025\/05\/4.png 500w, https:\/\/hydraflu.com\/wp-content\/uploads\/2025\/05\/4-18x10.png 18w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/span><\/p>\n<p><span style=\"font-weight: 400;\">Seguindo esses passos de manuten\u00e7\u00e3o, voc\u00ea poder\u00e1 prolongar a vida \u00fatil da v\u00e1lvula e garantir seu bom funcionamento.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Considera\u00e7\u00f5es de seguran\u00e7a para v\u00e1lvulas proporcionais<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Muitos ambientes industriais dependem de v\u00e1lvulas proporcionais; no entanto, \u00e9 fundamental seguir os protocolos de seguran\u00e7a adequados para evitar acidentes. Estas s\u00e3o algumas das principais preocupa\u00e7\u00f5es de seguran\u00e7a:<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Sempre alivie a press\u00e3o do sistema antes de trabalhar na v\u00e1lvula para evitar ferimentos acidentais causados por fluido pressurizado.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u00c9 imprescind\u00edvel garantir que os componentes el\u00e9tricos estejam devidamente aterrados e isolados.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Os componentes das v\u00e1lvulas podem apresentar mau funcionamento em circunst\u00e2ncias de press\u00e3o ou temperatura elevadas.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Para evitar les\u00f5es, \u00e9 crucial monitorar a temperatura do sistema com frequ\u00eancia.\u00a0<\/span><\/li>\n<\/ol>\n<h2><span style=\"font-weight: 400;\">Conclus\u00e3o<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">As v\u00e1lvulas proporcionais s\u00e3o um tipo de v\u00e1lvula hidr\u00e1ulica precisa e exata para controlar o movimento em um sistema hidr\u00e1ulico. Com aplica\u00e7\u00f5es que v\u00e3o da ind\u00fastria automotiva \u00e0 qu\u00edmica, essas v\u00e1lvulas oferecem muitas vantagens em rela\u00e7\u00e3o a outros tipos de v\u00e1lvulas. Voc\u00ea pode explorar mais v\u00e1lvulas hidr\u00e1ulicas em [link para o site]. <\/span><a href=\"https:\/\/hydraflu.com\/pt\/\"><span style=\"font-weight: 400;\">Hydraflu<\/span><\/a><span style=\"font-weight: 400;\">. A Hydraflu \u00e9 uma das empresas com a mais alta classifica\u00e7\u00e3o de qualidade na fabrica\u00e7\u00e3o e fornecimento de <\/span><a href=\"https:\/\/hydraflu.com\/pt\/valvula-hidraulica\/\"><span style=\"font-weight: 400;\">v\u00e1lvulas hidr\u00e1ulicas<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/hydraflu.com\/pt\/unidade-hidraulica\/pacote-de-energia-para-plataforma-elevatoria-traseira\/\"><span style=\"font-weight: 400;\">portas de eleva\u00e7\u00e3o<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/hydraflu.com\/pt\/motor-ca\/\"><span style=\"font-weight: 400;\">Motores CA<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/hydraflu.com\/pt\/motor-cc\/\"><span style=\"font-weight: 400;\">motores CC<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/hydraflu.com\/pt\/bomba-hidraulica\/\"><span style=\"font-weight: 400;\">bombas hidr\u00e1ulicas<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/hydraflu.com\/pt\/unidade-hidraulica\/mini-unidade-hidraulica\/\"><span style=\"font-weight: 400;\">unidades hidr\u00e1ulicas<\/span><\/a><span style=\"font-weight: 400;\"> e todos os demais componentes hidr\u00e1ulicos.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Sinta-se \u00e0 vontade para <\/span><a href=\"https:\/\/hydraflu.com\/pt\/contate-nos\/\"><span style=\"font-weight: 400;\">entre em contato<\/span><\/a><span style=\"font-weight: 400;\"> Envie uma solicita\u00e7\u00e3o para obter um pedido personalizado ou informa\u00e7\u00f5es sobre pre\u00e7os.\u00a0<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>&nbsp; Operating hydraulic machines can put you in several control-based circumstances. One such situation involves lifting sensitive machinery and goods that require very accurate (inch-by-inch [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-16058","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Proportional Valves and Their Importance in Hydraulic Systems - Hydraflu Hydraulic CO.<\/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:\/\/hydraflu.com\/pt\/valvulas-proporcionais-e-sua-importancia-em-sistemas-hidraulicos\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Proportional Valves and Their Importance in Hydraulic Systems - Hydraflu Hydraulic CO.\" \/>\n<meta property=\"og:description\" content=\"&nbsp; Operating hydraulic machines can put you in several control-based circumstances. 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