{"id":4415,"date":"2026-03-18T07:42:05","date_gmt":"2026-03-18T07:42:05","guid":{"rendered":"https:\/\/hydrathpower.com\/?p=4415"},"modified":"2026-03-18T07:42:05","modified_gmt":"2026-03-18T07:42:05","slug":"purge-du-cylindre-hydraulique","status":"publish","type":"post","link":"https:\/\/hydrathpower.com\/fr\/bleed-hydraulic-cylinder\/","title":{"rendered":"Purge d'un v\u00e9rin hydraulique sans vanne de purge : Guide \u00e9tape par \u00e9tape"},"content":{"rendered":"<section id=\"what-is-air\">\n<h3>Qu'est-ce que l'air dans un cylindre hydraulique ?<\/h3>\n<p>La contamination de l'air r\u00e9duit l'efficacit\u00e9 et provoque des mouvements irr\u00e9guliers, du bruit, de la chaleur et une usure pr\u00e9matur\u00e9e. L'\u00e9limination de l'air r\u00e9tablit le bon fonctionnement et prot\u00e8ge les composants.<\/p>\n<div id='gallery-1' class='gallery galleryid-4415 gallery-columns-5 gallery-size-medium'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/hydrathpower.com\/fr\/bleed-hydraulic-cylinder\/air-in-the-hydraulic-oil\/'><img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/air-in-the-hydraulic-oil-300x200.jpg\" class=\"attachment-medium size-medium\" alt=\"air dans l&#039;huile hydraulique\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/air-in-the-hydraulic-oil-300x200.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/air-in-the-hydraulic-oil-1024x683.jpg 1024w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/air-in-the-hydraulic-oil-768x512.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/air-in-the-hydraulic-oil-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/air-in-the-hydraulic-oil.jpg 1200w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/hydrathpower.com\/fr\/bleed-hydraulic-cylinder\/hydraulic-piston-rod-wear\/'><img decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Hydraulic-piston-rod-wear-300x200.jpg\" class=\"attachment-medium size-medium\" alt=\"Usure de la tige du piston hydraulique\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Hydraulic-piston-rod-wear-300x200.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Hydraulic-piston-rod-wear-1024x683.jpg 1024w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Hydraulic-piston-rod-wear-768x512.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Hydraulic-piston-rod-wear-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/Hydraulic-piston-rod-wear.jpg 1200w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/hydrathpower.com\/fr\/bleed-hydraulic-cylinder\/damage-of-air-for-hydraulic-cylinder\/'><img decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/damage-of-air-for-hydraulic-cylinder-300x200.jpg\" class=\"attachment-medium size-medium\" alt=\"\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/damage-of-air-for-hydraulic-cylinder-300x200.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/damage-of-air-for-hydraulic-cylinder-1024x683.jpg 1024w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/damage-of-air-for-hydraulic-cylinder-768x512.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/damage-of-air-for-hydraulic-cylinder-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/damage-of-air-for-hydraulic-cylinder.jpg 1200w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<\/section>\n<section id=\"safety-tools\">\n<h3>S\u00e9curit\u00e9 et outils<\/h3>\n<ul>\n<li>EPI : lunettes de s\u00e9curit\u00e9, gants<\/li>\n<li>Outils : jeu de cl\u00e9s, tampons absorbants, r\u00e9cipient propre, huile hydraulique fra\u00eeche<\/li>\n<li>Pr\u00e9paration : d\u00e9gager la zone de travail ; verrouiller\/\u00e9tiqueter ; v\u00e9rifier que la charge est s\u00e9curis\u00e9e ; rel\u00e2cher la pression avant de desserrer les raccords.<\/li>\n<\/ul>\n<\/section>\n<section id=\"detect-air\">\n<h3>Comment d\u00e9tecter l'air dans un cylindre<\/h3>\n<ul>\n<li>Mouvements lents ou irr\u00e9guliers<\/li>\n<li>Vibrations ou secousses<\/li>\n<li>Bruits de claquement ou de sifflement<\/li>\n<li>Augmentation de la temp\u00e9rature de l'huile au-del\u00e0 de la normale<\/li>\n<li>Bulles visibles ou liquide laiteux<\/li>\n<\/ul>\n<\/section>\n<section id=\"procedure-with-bleeder\">\n<h3>Proc\u00e9dure A : Purge \u00e0 l'aide d'un robinet de purge<\/h3>\n<ol>\n<li>Positionner le cylindre de mani\u00e8re \u00e0 ce que le purgeur soit au point le plus haut.<\/li>\n<li>Appliquez une l\u00e9g\u00e8re pression et faites pivoter le purgeur d'un demi-tour.<\/li>\n<li>Effectuer un cycle lent d'extension et de r\u00e9traction pour pousser l'air jusqu'au point de purge.<\/li>\n<li>Surveiller l'\u00e9coulement jusqu'\u00e0 ce que l'huile soit exempte de bulles, puis fermer fermement le robinet.<\/li>\n<li>Remplir le r\u00e9servoir et v\u00e9rifier qu'il n'y a pas de fuites ; tester \u00e0 faible vitesse.<\/li>\n<\/ol>\n<\/section>\n<section id=\"procedure-without-bleeder\">\n<h3>Proc\u00e9dure B : Purge sans vanne de purge<\/h3>\n<ol>\n<li>Les raccords doivent \u00eatre plac\u00e9s au point le plus haut de l'installation ou \u00e0 proximit\u00e9 de celui-ci. <a href=\"\/hydraulic-cylinders\/\">cylindre<\/a>.<\/li>\n<li>Desserrer l\u00e9g\u00e8rement le raccord en rel\u00e2chant la pression ; le prot\u00e9ger \u00e0 l'aide de tampons ou d'un r\u00e9cipient.<\/li>\n<li>Faites tourner le cylindre progressivement pour d\u00e9placer l'air vers le raccord desserr\u00e9.<\/li>\n<li>Contr\u00f4ler les <a href=\"\/hydraulic-tank\/\">r\u00e9servoir<\/a>; ajouter de l'huile si n\u00e9cessaire pour \u00e9viter les appels d'air.<\/li>\n<li>Ajuster l'angle de mani\u00e8re \u00e0 ce que l'air emprisonn\u00e9 migre vers le haut ; tapoter doucement le corps du cylindre pour d\u00e9loger les bulles.<\/li>\n<li>Lorsque l'\u00e9coulement est clair, serrer le raccord ; tester lentement et v\u00e9rifier que le mouvement est r\u00e9gulier.<\/li>\n<li>Inspecter les joints et les raccords c\u00f4t\u00e9 aspiration afin d'\u00e9viter toute r\u00e9introduction.<\/li>\n<\/ol>\n<\/section>\n<section id=\"single-double\">\n<h3>Consid\u00e9rations sur le simple ou le double effet<\/h3>\n<ul>\n<li><a href=\"\/single-acting-hydraulic-cylinder\/\">Simple effet<\/a>La saign\u00e9e se concentre sur le c\u00f4t\u00e9 pression et les points hauts.<\/li>\n<li><a href=\"\/double-acting-hydraulic-cylinder\/\">Double effet<\/a>Les deux c\u00f4t\u00e9s sont purg\u00e9s ; l'abaissement contr\u00f4l\u00e9 am\u00e9liore l'\u00e9vacuation de l'air et la stabilit\u00e9.<\/li>\n<li><a href=\"\/telescopic-hydraulic-cylinder\/\">T\u00e9lescopique :<\/a> une autosaigne peut se produire apr\u00e8s un cycle ; suivre les conseils du fabricant pour les v\u00e9rifications de la s\u00e9quence.<br \/>\n<div id='gallery-2' class='gallery galleryid-4415 gallery-columns-3 gallery-size-medium'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/hydrathpower.com\/fr\/bleed-hydraulic-cylinder\/single-acting-hydraulic-cylinder-3\/'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/single-acting-hydraulic-cylinder-300x200.jpg\" class=\"attachment-medium size-medium\" alt=\"v\u00e9rin hydraulique \u00e0 simple effet\" aria-describedby=\"gallery-2-4417\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/single-acting-hydraulic-cylinder-300x200.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/single-acting-hydraulic-cylinder-1024x683.jpg 1024w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/single-acting-hydraulic-cylinder-768x512.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/single-acting-hydraulic-cylinder-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/single-acting-hydraulic-cylinder.jpg 1200w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-4417'>\n\t\t\t\tV\u00e9rin hydraulique \u00e0 simple effet\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/hydrathpower.com\/fr\/bleed-hydraulic-cylinder\/double-acting-hydraulic-cylinder-4\/'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/double-acting-hydraulic-cylinder-300x200.jpg\" class=\"attachment-medium size-medium\" alt=\"Cylindre hydraulique \u00e0 double effet\" aria-describedby=\"gallery-2-4418\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/double-acting-hydraulic-cylinder-300x200.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/double-acting-hydraulic-cylinder-1024x683.jpg 1024w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/double-acting-hydraulic-cylinder-768x512.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/double-acting-hydraulic-cylinder-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/double-acting-hydraulic-cylinder.jpg 1200w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-4418'>\n\t\t\t\tCylindre hydraulique \u00e0 double effet\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n<\/li>\n<\/ul>\n<\/section>\n<section id=\"comparison\">\n<h3>Comparaison : Avec ou sans vanne de purge<\/h3>\n<table>\n<thead>\n<tr>\n<th>Aspect<\/th>\n<th>Avec vanne de purge<\/th>\n<th>Sans vanne de purge<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Vitesse de r\u00e9glage<\/td>\n<td>Plus rapide<\/td>\n<td>Plus lent<\/td>\n<\/tr>\n<tr>\n<td>Contr\u00f4le<\/td>\n<td>Point de purge pr\u00e9cis<\/td>\n<td>Utiliser des raccords, des angles et des taraudages<\/td>\n<\/tr>\n<tr>\n<td>Risque de d\u00e9versement<\/td>\n<td>Plus bas<\/td>\n<td>Plus \u00e9lev\u00e9 ; utiliser des tampons et un r\u00e9cipient<\/td>\n<\/tr>\n<tr>\n<td>Meilleure utilisation<\/td>\n<td>Des syst\u00e8mes faciles \u00e0 entretenir<\/td>\n<td>Assemblages anciens ou compacts<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Conclusion : Pr\u00e9f\u00e9rer les vannes de purge lorsqu'elles sont disponibles ; en l'absence de vannes, proc\u00e9der lentement et g\u00e9rer avec soin le niveau du r\u00e9servoir et les points hauts.<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/hydraulic-sealing-rubber-300x200.jpg\" class=\"alignnone  wp-image-4422 lazyload\" alt=\"caoutchouc d&#039;\u00e9tanch\u00e9it\u00e9 hydraulique\" width=\"203\" height=\"135\"><noscript><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-4422\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/hydraulic-sealing-rubber-300x200.jpg\" alt=\"caoutchouc d&#039;\u00e9tanch\u00e9it\u00e9 hydraulique\" width=\"203\" height=\"135\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/hydraulic-sealing-rubber-300x200.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/hydraulic-sealing-rubber-1024x683.jpg 1024w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/hydraulic-sealing-rubber-768x512.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/hydraulic-sealing-rubber-18x12.jpg 18w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/03\/hydraulic-sealing-rubber.jpg 1200w\" sizes=\"(max-width: 203px) 100vw, 203px\" \/><\/noscript><\/p>\n<\/section>\n<section id=\"prevention\">\n<h3>Meilleures pratiques de pr\u00e9vention<\/h3>\n<ul>\n<li>Int\u00e9grit\u00e9 des joints : inspecter les tuyaux et les raccords, en particulier les raccords du c\u00f4t\u00e9 de l'aspiration.<\/li>\n<li>Remplissage correct : ajouter l'huile correctement pour \u00e9viter d'entra\u00eener de l'air ; utiliser des r\u00e9cipients propres.<\/li>\n<li>Service et temp\u00e9rature : surveiller la chaleur ; planifier les cycles de refroidissement et de repos<\/li>\n<li>Gestion du r\u00e9servoir : maintenir le niveau de liquide dans les sp\u00e9cifications ; s'assurer que le reniflard fonctionne.<\/li>\n<li>Cycle p\u00e9riodique : apr\u00e8s l'entretien, effectuer un cycle pour purger l'air r\u00e9siduel.<\/li>\n<\/ul>\n<\/section>\n<section id=\"faqs\">\n<h3>Questions fr\u00e9quemment pos\u00e9es<\/h3>\n<h4>\u00c0 quelle fr\u00e9quence dois-je purger le cylindre ?<\/h4>\n<p>La purge doit \u00eatre effectu\u00e9e apr\u00e8s l'entretien, la remise en \u00e9tat ou l'apparition de sympt\u00f4mes. Certains syst\u00e8mes n\u00e9cessitent des cycles p\u00e9riodiques pour purger l'air r\u00e9siduel.<\/p>\n<h4>La perte de liquide est-elle normale en cas de saignement ?<\/h4>\n<p>Des pertes mineures peuvent se produire. Recueillir le fluide, remplir le r\u00e9servoir et v\u00e9rifier l'absence de fuites apr\u00e8s avoir serr\u00e9 les raccords.<\/p>\n<h4>De quel c\u00f4t\u00e9 dois-je purger un v\u00e9rin \u00e0 double effet ?<\/h4>\n<p>Purgez les deux c\u00f4t\u00e9s ; gardez les points hauts en haut et effectuez un cycle pour d\u00e9placer l'air vers l'emplacement de la purge.<\/p>\n<h4>Quelle huile dois-je utiliser ?<\/h4>\n<p>Utiliser l'huile hydraulique sp\u00e9cifi\u00e9e ; adapter la viscosit\u00e9 \u00e0 la plage de temp\u00e9rature et v\u00e9rifier la compatibilit\u00e9 des joints.<\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>What is \u201cair in a hydraulic cylinder\u201d? Air contamination reduces efficiency and causes irregular movement, noise, heat, and premature wear. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4416,"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-4415","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>Bleeding a Hydraulic Cylinder Without a Bleeder Valve: Step\u2011by\u2011Step Guide - Hydrath Power<\/title>\n<meta name=\"description\" content=\"Clear, safe procedures to remove air from hydraulic cylinders with and without a bleeder valve. 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