{"id":1000773,"date":"2026-09-13T22:21:57","date_gmt":"2026-09-13T22:21:57","guid":{"rendered":"https:\/\/omnivapipe.com\/?post_type=product&#038;p=1000773"},"modified":"2026-10-20T13:57:42","modified_gmt":"2026-10-20T13:57:42","slug":"exhaust-valve","status":"publish","type":"product","link":"https:\/\/omnivapipe.com\/fr\/product\/exhaust-valve\/","title":{"rendered":"Ventouse (purgeur d'air)"},"content":{"rendered":"<p>La ventouse est un purgeur d'air automatique \u00e0 brides install\u00e9 aux points hauts des conduites d'eau. Un flotteur ferme l'orifice lorsque la vanne est pleine d'eau et descend pour l'ouvrir d\u00e8s que de l'air s'accumule, \u00e9vacuant automatiquement l'air pi\u00e9g\u00e9. L'\u00e9limination des poches d'air \u00e9vite les restrictions de d\u00e9bit, les erreurs de comptage, la corrosion et les surpressions dans le r\u00e9seau.<\/p>\n<h5><strong>Sp\u00e9cifications techniques :<\/strong><\/h5>\n<ul>\n<li><strong>Classe de pression :<\/strong> PN10 \/ PN16<\/li>\n<li><strong>Plage de diam\u00e8tres :<\/strong> DN25 \u2013 DN200<\/li>\n<li><strong>Fluide admissible :<\/strong> Eau, eaux us\u00e9es (mod\u00e8le sp\u00e9cial), liquides neutres<\/li>\n<li><strong>Temp\u00e9rature de service :<\/strong> 0\u00b0C to 80\u00b0C<\/li>\n<\/ul>\n<h5><strong>Main Parts and Materials:<\/strong><\/h5>\n<table cellspacing=\"0\">\n<tbody>\n<tr>\n<td><strong>D\u00e9signation des pi\u00e8ces<\/strong><\/td>\n<td><strong>Mat\u00e9riaux<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Corps, couvercle<\/td>\n<td>Fonte ductile QT450-10 \/ fonte grise HT200<\/td>\n<\/tr>\n<tr>\n<td>Flotteur<\/td>\n<td>Acier inoxydable 304<\/td>\n<\/tr>\n<tr>\n<td>Joint \/ si\u00e8ge<\/td>\n<td>EPDM \/ NBR<\/td>\n<\/tr>\n<tr>\n<td>M\u00e9canisme \u00e0 levier<\/td>\n<td>Acier inoxydable<\/td>\n<\/tr>\n<tr>\n<td>Joint<\/td>\n<td>NBR<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5><strong>Principales caract\u00e9ristiques :<\/strong><\/h5>\n<ol>\n<li><strong>Purge d'air automatique :<\/strong> \u00c9vacue l'air en continu pendant que la conduite est sous pression.<\/li>\n<li><strong>Protection contre le vide :<\/strong> Admet de l'air lors de la vidange pour \u00e9viter l'\u00e9crasement de la conduite (type combin\u00e9).<\/li>\n<li><strong>Flotteur en inox :<\/strong> Flotteur inoxydable pour un service long et fiable.<\/li>\n<li><strong>\u00c9tanch\u00e9it\u00e9 goutte \u00e0 goutte :<\/strong> Le si\u00e8ge en \u00e9lastom\u00e8re se ferme sans fuite \u00e0 basse comme \u00e0 haute pression.<\/li>\n<li><strong>R\u00e9duction des surpressions :<\/strong> L'\u00e9limination des poches d'air contribue \u00e0 limiter les coups de b\u00e9lier.<\/li>\n<\/ol>\n<h5><strong>Applications :<\/strong><\/h5>\n<p>Id\u00e9al pour <strong>les conduites de transport d'eau<\/strong>, <strong>les conduites de refoulement de pompes<\/strong>, <strong>les syst\u00e8mes de chauffage<\/strong>, et <strong>les r\u00e9seaux d'irrigation<\/strong>. Particuli\u00e8rement adapt\u00e9 aux points hauts et aux longues conduites o\u00f9 l'accumulation d'air r\u00e9duit l'efficacit\u00e9.<\/p>\n<div style=\"display: none;\"><\/div>\n<div class=\"cbu-aibuy-login\"><\/div>\n<div class=\"1688-aibuy-drawer\"><\/div>\n<div class=\"1688-aibuy-search-icon\" style=\"display: none;\">\n<div class=\"cbu-aibuy-trigger-btn-container\">\n<div class=\"cbu-aibuy--dropdown-trigger aibuy-trigger-btn-wrapper\"><img decoding=\"async\" src=\"chrome-extension:\/\/ecpkhbhhpfjkkcedaejmpaabpdgcaegc\/assets\/search-image-icon.png\" alt=\"\" \/><\/div>\n<\/div>\n<\/div>\n<div class=\"1688-aibuy-screenshot\"><\/div>","protected":false},"excerpt":{"rendered":"<h5>Exigences techniques :<\/h5>\n<ol>\n<li><strong>Conception et fabrication :<\/strong> CJ\/T 217<\/li>\n<li><strong>\u00c9cartement entre faces :<\/strong> Norme du fabricant<\/li>\n<li><strong>Brides d'extr\u00e9mit\u00e9 :<\/strong> GB\/T 17241.6<\/li>\n<li><strong>Inspection et essais :<\/strong> CJ\/T 217 \/ GB\/T 13927<\/li>\n<\/ol>\n<div style=\"display: none;\"><\/div>\n<div class=\"cbu-aibuy-login\"><\/div>\n<div class=\"1688-aibuy-drawer\"><\/div>\n<div class=\"1688-aibuy-search-icon\" style=\"display: none;\">\n<div class=\"cbu-aibuy-trigger-btn-container\">\n<div class=\"cbu-aibuy--dropdown-trigger aibuy-trigger-btn-wrapper\"><img decoding=\"async\" src=\"chrome-extension:\/\/ecpkhbhhpfjkkcedaejmpaabpdgcaegc\/assets\/search-image-icon.png\" alt=\"\" \/><\/div>\n<\/div>\n<\/div>\n<div class=\"1688-aibuy-screenshot\"><\/div>","protected":false},"featured_media":1001424,"template":"","meta":[],"product_brand":[],"product_cat":[270,15,246,239,332],"product_tag":[95,222,346,229,345,344],"class_list":["post-1000773","product","type-product","status-publish","has-post-thumbnail","product_cat-gb-cast-iron-air-valve","product_cat-uncategorized","product_cat-gb-cast-iron","product_cat-gb-standard","product_cat-water-valves","product_tag-cast-iron-valves","product_tag-chinese-standard","product_tag-solution-environmental","product_tag-exhaust-valve","product_tag-solution-municipal","product_tag-solution-water-conservancy","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/omnivapipe.com\/fr\/wp-json\/wp\/v2\/product\/1000773","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/omnivapipe.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/omnivapipe.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/omnivapipe.com\/fr\/wp-json\/wp\/v2\/media\/1001424"}],"wp:attachment":[{"href":"https:\/\/omnivapipe.com\/fr\/wp-json\/wp\/v2\/media?parent=1000773"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/omnivapipe.com\/fr\/wp-json\/wp\/v2\/product_brand?post=1000773"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/omnivapipe.com\/fr\/wp-json\/wp\/v2\/product_cat?post=1000773"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/omnivapipe.com\/fr\/wp-json\/wp\/v2\/product_tag?post=1000773"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}