{"id":4624,"date":"2026-05-06T06:53:58","date_gmt":"2026-05-06T06:53:58","guid":{"rendered":"https:\/\/hydrathpower.com\/?p=4624"},"modified":"2026-06-05T02:13:05","modified_gmt":"2026-06-05T02:13:05","slug":"resultats-de-lessai-dhysteresis-de-la-vanne-dequilibrage-analyse-du-chemin-decoulement-dans-trois-etats-de-fonctionnement","status":"publish","type":"post","link":"https:\/\/hydrathpower.com\/fr\/counterbalance-valve-hysteresis-test-results-flow-path-analysis-across-three-operating-states\/","title":{"rendered":"R\u00e9sultats des tests d'hyst\u00e9r\u00e9sis des soupapes de contrepoids : Analyse du chemin d'\u00e9coulement \u00e0 travers trois \u00e9tats de fonctionnement"},"content":{"rendered":"<h2>Qu'est-ce qu'une vanne \u00e0 contrepoids ?<\/h2>\n<p>A <a href=\"\/counterbalance-valve\/\">vanne de contrepoids<\/a>, Le distributeur, parfois appel\u00e9 distributeur de surcentrage, est install\u00e9 en aval d'un actionneur pour maintenir une pression fixe sur une charge. Lorsqu'un v\u00e9rin supporte une charge mont\u00e9e verticalement et que son distributeur se d\u00e9place pour abaisser la charge, celle-ci pourrait sinon pousser le fluide hors du v\u00e9rin et tomber de mani\u00e8re incontr\u00f4l\u00e9e en raison de son poids.<\/p>\n<div class=\"highlight-box\">\n<p>Les normes industrielles guident les d\u00e9cisions en mati\u00e8re de conception hydraulique. Selon les <a href=\"https:\/\/www.iso.org\/standard\/53564.html\" target=\"_blank\" rel=\"nofollow noopener\">ISO 4413:2010<\/a>, Les concepteurs doivent tenir compte de la pression et de la temp\u00e9rature maximales lorsqu'ils dimensionnent les composants. Cela permet de garantir un fonctionnement s\u00fbr et une longue dur\u00e9e de vie.<\/p>\n<\/div>\n<p>Les vannes \u00e0 contrepoids utilisent des signaux de pilotage, g\u00e9n\u00e9ralement \u00e0 partir de l'entr\u00e9e du v\u00e9rin, pour aider \u00e0 surmonter le ressort. L'assistance du pilote rend l'\u00e9quilibrage plus efficace et r\u00e9duit les besoins en \u00e9nergie et la production de chaleur dans le syst\u00e8me. Pour les d\u00e9bits extr\u00eamement faibles, les vannes \u00e0 contrepoids fonctionnent \u00e9galement comme des soupapes de d\u00e9charge thermique.<\/p>\n<figure id=\"attachment_4626\" aria-describedby=\"caption-attachment-4626\" style=\"width: 469px\" class=\"wp-caption alignnone\"><img fetchpriority=\"high\" decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Hysteresis-test-results-for-four-counterbalance-valves.-The-test-demonstrates-how-dynamic-seals-introduce-friction-causing-lag-and-pressure-overshoot-in-valve-response-300x202.jpg\" class=\"wp-image-4626 lazyload\" alt=\"R\u00e9sultats du test d&#039;hyst\u00e9r\u00e9sis pour quatre vannes \u00e0 contrepoids. Le test d\u00e9montre comment les joints dynamiques introduisent des frottements, provoquant un d\u00e9calage et un d\u00e9passement de la pression dans la r\u00e9ponse de la vanne.\" width=\"469\" height=\"316\"><figcaption id=\"caption-attachment-4626\" class=\"wp-caption-text\"><noscript><img decoding=\"async\" class=\"wp-image-4626\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Hysteresis-test-results-for-four-counterbalance-valves.-The-test-demonstrates-how-dynamic-seals-introduce-friction-causing-lag-and-pressure-overshoot-in-valve-response-300x202.jpg\" alt=\"R\u00e9sultats du test d&#039;hyst\u00e9r\u00e9sis pour quatre vannes \u00e0 contrepoids. Le test d\u00e9montre comment les joints dynamiques introduisent des frottements, provoquant un d\u00e9calage et un d\u00e9passement de la pression dans la r\u00e9ponse de la vanne.\" width=\"469\" height=\"316\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Hysteresis-test-results-for-four-counterbalance-valves.-The-test-demonstrates-how-dynamic-seals-introduce-friction-causing-lag-and-pressure-overshoot-in-valve-response-300x202.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Hysteresis-test-results-for-four-counterbalance-valves.-The-test-demonstrates-how-dynamic-seals-introduce-friction-causing-lag-and-pressure-overshoot-in-valve-response-768x518.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Hysteresis-test-results-for-four-counterbalance-valves.-The-test-demonstrates-how-dynamic-seals-introduce-friction-causing-lag-and-pressure-overshoot-in-valve-response-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Hysteresis-test-results-for-four-counterbalance-valves.-The-test-demonstrates-how-dynamic-seals-introduce-friction-causing-lag-and-pressure-overshoot-in-valve-response.jpg 869w\" sizes=\"(max-width: 469px) 100vw, 469px\" \/><\/noscript> R\u00e9sultats du test d'hyst\u00e9r\u00e9sis pour quatre vannes \u00e0 contrepoids. Le test d\u00e9montre comment les joints dynamiques introduisent des frottements, provoquant un d\u00e9calage et un d\u00e9passement de la pression dans la r\u00e9ponse de la vanne.<\/figcaption><\/figure>\n<h2>Qu'est-ce que l'hyst\u00e9r\u00e9sis dans les vannes \u00e0 contrepoids ?<\/h2>\n<p>L'hyst\u00e9r\u00e9sis d\u00e9signe le d\u00e9calage ou le retard dans la r\u00e9ponse de la vanne. La plupart des vannes \u00e0 contrepoids comportent un \u00e0 trois joints dynamiques, qui introduisent un frottement. Ce frottement provoque le blocage de la soupape, ce qui entra\u00eene une surpression. La vanne se d\u00e9place alors pour se corriger et compenser le d\u00e9ficit.<\/p>\n<p>Les cons\u00e9quences de l'hyst\u00e9r\u00e9sis sont les suivantes :<\/p>\n<ul>\n<li><strong>Chocs de pression<\/strong><\/li>\n<li><strong>Vibrations fortes<\/strong><\/li>\n<li><strong>Grincement \u00e0 haute fr\u00e9quence<\/strong><\/li>\n<\/ul>\n<div class=\"warning-box\">\n<p>Ce claquement est parfois caus\u00e9 par <a href=\"\/hydraulic-cylinders\/\">cylindre<\/a> plut\u00f4t que la vanne \u00e0 contrepoids elle-m\u00eame. Plus il y a de joints dynamiques \u00e0 l'int\u00e9rieur d'un robinet \u00e0 contrepoids, plus l'hyst\u00e9r\u00e9sis est importante. S'il est caus\u00e9 par le cylindre, aucun robinet \u00e0 contrepoids au monde ne peut \u00e9liminer ce broutage.<\/p>\n<\/div>\n<h2>Soupape \u00e0 contrepoids et soupape de d\u00e9charge conventionnelle<\/h2>\n<table>\n<thead>\n<tr>\n<th>Fonctionnalit\u00e9<\/th>\n<th>Valve de contrepoids<\/th>\n<th>Soupape de s\u00fbret\u00e9 conventionnelle<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Fonction principale<\/td>\n<td>Maintien de la charge + abaissement contr\u00f4l\u00e9<\/td>\n<td>Protection contre la surpression<\/td>\n<\/tr>\n<tr>\n<td>Assistance au pilotage<\/td>\n<td>Oui, \u00e0 partir de l'orifice du cylindre<\/td>\n<td>Non<\/td>\n<\/tr>\n<tr>\n<td>Nombre de scell\u00e9s<\/td>\n<td>1-3 joints dynamiques (typiques)<\/td>\n<td>1 joint (typique)<\/td>\n<\/tr>\n<tr>\n<td>Risque d'hyst\u00e9r\u00e9sis<\/td>\n<td>Plus \u00e9lev\u00e9<\/td>\n<td>Plus bas<\/td>\n<\/tr>\n<tr>\n<td>Vitesse de r\u00e9ponse<\/td>\n<td>Plus lent en raison du frottement<\/td>\n<td>Plus rapide<\/td>\n<\/tr>\n<tr>\n<td>Production de chaleur<\/td>\n<td>Plus \u00e9lev\u00e9<\/td>\n<td>Plus bas<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Avantages et inconv\u00e9nients des diff\u00e9rents ratios de pilotage<\/h2>\n<p>La plupart des vannes \u00e0 contrepoids offrent des rapports de pilotage allant de <strong>1,75:1 \u00e0 12,0:1<\/strong>.<\/p>\n<h3>Avantages du rapport de pilotage r\u00e9glable<\/h3>\n<ul>\n<li>Peut r\u00e9pondre \u00e0 des exigences sp\u00e9cifiques en mati\u00e8re d'\u00e9quipement<\/li>\n<li>Peut r\u00e9soudre les probl\u00e8mes d'instabilit\u00e9 dans certains cas<\/li>\n<li>Flexibilit\u00e9 pour diff\u00e9rentes applications<\/li>\n<\/ul>\n<h3>Inconv\u00e9nients du rapport de pilotage r\u00e9glable<\/h3>\n<ul>\n<li>La s\u00e9lection par essais et erreurs prend du temps<\/li>\n<li>Un mauvais rapport amplifie les probl\u00e8mes d'hyst\u00e9r\u00e9sis<\/li>\n<li>Augmentation de la consommation d'\u00e9nergie<\/li>\n<\/ul>\n<div class=\"highlight-box\">\n<p><strong>Pratique recommand\u00e9e :<\/strong> Sur la base de l'exp\u00e9rience acquise sur le terrain, un <strong>Rapport pilote 4:1<\/strong> r\u00e9pond \u00e0 la plupart des exigences des applications sans avoir \u00e0 essayer plusieurs rapports.<\/p>\n<figure id=\"attachment_4629\" aria-describedby=\"caption-attachment-4629\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Cross-section-view-of-a-counterbalance-valve-showing-flow-paths-in-three-operating-states.-Flow-paths-are-determined-by-pressure-at-ports-1-2-and-3-acting-on-the-pilot-valve-spool-blue-and-che-300x202.jpg\" class=\"size-medium wp-image-4629 lazyload\" alt=\"Vue en coupe d&#039;une vanne \u00e0 contrepoids montrant les voies d&#039;\u00e9coulement dans trois \u00e9tats de fonctionnement. Les voies d&#039;\u00e9coulement sont d\u00e9termin\u00e9es par la pression aux orifices 1, 2 et 3 agissant sur le tiroir de la vanne pilote (bleu) et la che\" width=\"300\" height=\"202\"><figcaption id=\"caption-attachment-4629\" class=\"wp-caption-text\"><noscript><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-4629\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Cross-section-view-of-a-counterbalance-valve-showing-flow-paths-in-three-operating-states.-Flow-paths-are-determined-by-pressure-at-ports-1-2-and-3-acting-on-the-pilot-valve-spool-blue-and-che-300x202.jpg\" alt=\"Vue en coupe d&#039;une vanne \u00e0 contrepoids montrant les voies d&#039;\u00e9coulement dans trois \u00e9tats de fonctionnement. Les voies d&#039;\u00e9coulement sont d\u00e9termin\u00e9es par la pression aux orifices 1, 2 et 3 agissant sur le tiroir de la vanne pilote (bleu) et la che\" width=\"300\" height=\"202\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Cross-section-view-of-a-counterbalance-valve-showing-flow-paths-in-three-operating-states.-Flow-paths-are-determined-by-pressure-at-ports-1-2-and-3-acting-on-the-pilot-valve-spool-blue-and-che-300x202.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Cross-section-view-of-a-counterbalance-valve-showing-flow-paths-in-three-operating-states.-Flow-paths-are-determined-by-pressure-at-ports-1-2-and-3-acting-on-the-pilot-valve-spool-blue-and-che-768x518.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Cross-section-view-of-a-counterbalance-valve-showing-flow-paths-in-three-operating-states.-Flow-paths-are-determined-by-pressure-at-ports-1-2-and-3-acting-on-the-pilot-valve-spool-blue-and-che-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Cross-section-view-of-a-counterbalance-valve-showing-flow-paths-in-three-operating-states.-Flow-paths-are-determined-by-pressure-at-ports-1-2-and-3-acting-on-the-pilot-valve-spool-blue-and-che.jpg 869w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/noscript> Vue en coupe d'une vanne \u00e0 contrepoids montrant les voies d'\u00e9coulement dans trois \u00e9tats de fonctionnement. Les voies d'\u00e9coulement sont d\u00e9termin\u00e9es par la pression aux orifices 1, 2 et 3 agissant sur le tiroir de la vanne pilote (bleu) et la che<\/figcaption><\/figure>\n<\/div>\n<h2>Comment diagnostiquer l'hyst\u00e9r\u00e9sis d'une vanne de contrepoids ?<\/h2>\n<div class=\"checklist\">\n<ol>\n<li><strong>V\u00e9rifier l'absence de chocs de pression<\/strong> pendant l'abaissement de la charge<\/li>\n<li><strong>\u00c9couter les vibrations ou les grincements<\/strong> pr\u00e8s de la vanne<\/li>\n<li><strong>Mesurer le d\u00e9lai de r\u00e9ponse<\/strong> entre le signal du pilote et le fonctionnement de la vanne<\/li>\n<li><strong>Contr\u00f4ler l'\u00e9tat des joints<\/strong> si accessible<\/li>\n<li><strong>Essai avec diff\u00e9rents ratios de pilotage<\/strong> pour confirmer l'origine du cylindre ou de la valve<\/li>\n<\/ol>\n<\/div>\n<h2>Comment r\u00e9duire ou \u00e9liminer l'hyst\u00e9r\u00e9sis ?<\/h2>\n<h3>M\u00e9thodes de traitement des sympt\u00f4mes (solutions temporaires)<\/h3>\n<ol>\n<li><strong>R\u00e9gler le rapport de pilotage<\/strong> pour s'adapter \u00e0 un \u00e9quipement sp\u00e9cifique<\/li>\n<li><strong>Utiliser des soupapes \u00e0 course courte ou r\u00e9glable<\/strong> restreindre le d\u00e9bit jusqu'\u00e0 ce qu'il soit stable (augmentation de la consommation d'\u00e9nergie)<\/li>\n<li><strong>Installer un petit orifice ou un volume d'accumulation<\/strong> dans la ligne pilote pour amortir la r\u00e9ponse (sensible \u00e0 la viscosit\u00e9 du fluide ; la vanne peut devenir paresseuse \u00e0 basse temp\u00e9rature)<\/li>\n<\/ol>\n<p>Ces solutions rapides s'attaquent aux sympt\u00f4mes mais ne traitent pas la cause profonde.<\/p>\n<h3>Solution \u00e0 la cause premi\u00e8re : \u00c9liminer les joints dynamiques<\/h3>\n<p>Pour \u00e9liminer l'hyst\u00e9r\u00e9sis d'une vanne \u00e0 contrepoids, il faut retirer tous les joints dynamiques. Les vannes \u00e0 contrepoids sans joints dynamiques n'ont pratiquement pas d'hyst\u00e9r\u00e9sis. La vitesse de la vanne est suffisamment rapide pour suivre n'importe quel signal d'entr\u00e9e, ce qui \u00e9limine les rebonds, les bruits forts et les grincements \u00e0 haute fr\u00e9quence.<\/p>\n<p>Comme le piston pilote n'a pas de joints, une petite quantit\u00e9 d'huile hydraulique s'\u00e9chappe du piston pilote, purgeant l'air des conduites pilotes et assurant une circulation d'huile lubrifiante chaude. Le distributeur est ainsi extr\u00eamement r\u00e9actif. La position optimale de montage du distributeur sur le v\u00e9rin est la vis de r\u00e9glage orient\u00e9e vers le bas pour une purge rapide de l'air des conduites pilotes et de la chambre du ressort.<\/p>\n<p>Comme pour toutes les vannes \u00e0 contrepoids standard, la rotation de la vis de r\u00e9glage dans le sens des aiguilles d'une montre augmente la pression, tandis que la rotation dans le sens inverse des aiguilles d'une montre la diminue.<\/p>\n<h2>Questions fr\u00e9quemment pos\u00e9es<\/h2>\n<div class=\"faq-item\">\n<p><strong>Q : Quelle est la cause de l'hyst\u00e9r\u00e9sis dans les valves \u00e0 contrepoids ?<\/strong>R : Les joints dynamiques cr\u00e9ent des frottements, ce qui fait que la soupape se bloque et r\u00e9agit lentement. Il en r\u00e9sulte un d\u00e9passement de la pression et un d\u00e9calage.<\/p>\n<\/div>\n<div class=\"faq-item\">\n<p><strong>Q : L'hyst\u00e9r\u00e9sis peut-elle \u00eatre compl\u00e8tement \u00e9limin\u00e9e ?<\/strong>R : Oui, en utilisant des vannes \u00e0 contrepoids sans joints dynamiques. Ces conceptions \u00e9liminent le frottement \u00e0 la source.<\/p>\n<\/div>\n<div class=\"faq-item\">\n<p><strong>Q : Quel ratio de pilotage dois-je choisir ?<\/strong>R : Un rapport de pilotage de 4:1 r\u00e9pond \u00e0 la plupart des exigences des applications. Des rapports plus \u00e9lev\u00e9s permettent d'obtenir une force de maintien plus importante, mais peuvent augmenter le d\u00e9lai de r\u00e9ponse.<\/p>\n<\/div>\n<div class=\"faq-item\">\n<p><strong>Q : Le broutage est-il toujours caus\u00e9 par la soupape d'\u00e9quilibrage ?<\/strong>R : Non. Parfois, la conception du cylindre est \u00e0 l'origine du broutage. Aucune vanne de contrepoids ne peut rem\u00e9dier au broutage caus\u00e9 par des probl\u00e8mes de cylindre.<\/p>\n<\/div>\n<div class=\"faq-item\">\n<p><strong>Q : Quelle est la diff\u00e9rence entre un robinet \u00e0 contrepoids et un robinet de centrage ?<\/strong>R : Il n'y a pas de diff\u00e9rence. Il s'agit du m\u00eame composant avec des noms diff\u00e9rents.<\/p>\n<\/div>\n<h2>Conclusion<\/h2>\n<p>L'hyst\u00e9r\u00e9sis est en effet le pire ennemi de la vanne \u00e0 contrepoids. Les joints dynamiques cr\u00e9ent des frottements qui entra\u00eenent des d\u00e9passements de pression, des vibrations et du bruit. Bien que des solutions temporaires telles que l'ajustement des rapports de pilotage puissent rem\u00e9dier aux sympt\u00f4mes, la v\u00e9ritable solution consiste \u00e0 \u00e9liminer compl\u00e8tement les joints dynamiques.<\/p>\n<p>Pour les applications n\u00e9cessitant un contr\u00f4le pr\u00e9cis de la charge, il convient d'envisager des vannes \u00e0 contrepoids con\u00e7ues sans joints dynamiques. Elles offrent une r\u00e9ponse plus rapide, une r\u00e9duction du bruit et un meilleur rendement \u00e9nerg\u00e9tique.<\/p>","protected":false},"excerpt":{"rendered":"<p>What is a Counterbalance Valve? A counterbalance valve, sometimes called an overcenter valve, is installed downstream of an actuator to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4747,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"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":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-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":"","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-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4624","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Counterbalance Valve Hysteresis Test Results: Flow Path Analysis Across Three Operating States - Hydrath Power<\/title>\n<meta name=\"description\" content=\"Explore counterbalance valve hysteresis test results showing flow paths in three operating states. Learn how dynamic seal friction affects pilot valve spool and check seat performance.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hydrathpower.com\/fr\/resultats-de-lessai-dhysteresis-de-la-vanne-dequilibrage-analyse-du-chemin-decoulement-dans-trois-etats-de-fonctionnement\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Counterbalance Valve Hysteresis Test Results: Flow Path Analysis Across Three Operating States - Hydrath Power\" \/>\n<meta property=\"og:description\" content=\"Explore counterbalance valve hysteresis test results showing flow paths in three operating states. 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