{"id":3970,"date":"2026-02-09T14:34:19","date_gmt":"2026-02-09T13:34:19","guid":{"rendered":"https:\/\/www.ets-giroud.fr\/?post_type=product&p=3970"},"modified":"2026-02-09T14:34:19","modified_gmt":"2026-02-09T13:34:19","slug":"reservoir-sur-pieds-v-200-varem","status":"publish","type":"product","link":"https:\/\/www.ets-giroud.fr\/index.php\/produit\/reservoir-sur-pieds-v-200-varem\/","title":{"rendered":"R\u00e9servoir sur pieds V 200 VAREM"},"content":{"rendered":"

Expansion<\/strong>
\nMaintien sous pression de circuits soumis \u00e0 variations de t\u00b0 par compensation de la dilatation d\u2019eau.
\n\u2022 Pour circuits ferm\u00e9s de chauffage central, de r\u00e9frig\u00e9ration et de conditionnement d\u2019air.<\/p>\n

Surpression<\/strong>
\n\u2022 Maintien de pression
\nAvec r\u00e9servoir de petite capacit\u00e9, maintenant la pression dans l\u2019installation lorsqu\u2019aucun d\u00e9bit n\u2019est sollicit\u00e9 et prot\u00e9geant les organes de commande contre les variations de pression et de dilatation.
\n\u2022 Classique
\nAvec r\u00e9servoir de grande capacit\u00e9 \u00e0 r\u00e9serve d\u2019eau utile importante, couvrant les faibles d\u00e9bits demand\u00e9s sur le r\u00e9seau.<\/p>\n

Principes de fonctionnement du r\u00e9servoir \u00e0 membrane<\/strong>
\n\u2022 Avant mise en temp\u00e9rature, la pression \u00e0 l\u2019int\u00e9rieur du vase \u00e9quilibre la pression statique de l\u2019installation.
\n\u2022 L\u2019azote occupe enti\u00e8rement le volume du vase. La membrane reste plaqu\u00e9e contre la paroi.
\n\u2022 Pendant la mise en temp\u00e9rature, le volume d\u2019eau dans le circuit augmente sous l\u2019effet de la dilatation et comprime la membrane. Le volume d\u2019azote diminue et la pression dans l\u2019installation augmente.
\n\u2022 Apr\u00e8s la mise en temp\u00e9rature, la pression finale avoisine la pression de tarage de la soupape de s\u00e9curit\u00e9.
\n\u2022 A l\u2019arr\u00eat de la chaudi\u00e8re, l\u2019eau du circuit se refroidit et la pression dans l\u2019installation diminue. L\u2019eau contenue dans le vase retourne dans le r\u00e9seau pour r\u00e9tablir la pression, et le volume d\u2019eau.
\n\u2022 Dans les installations de r\u00e9frig\u00e9ration et de conditionnement d\u2019air :
\n– Au refroidissement du r\u00e9seau, le volume de l\u2019eau diminue; le vase d\u2019expansion renvoit l\u2019eau
\ndans le circuit pour maintenir la pression.
\n– A l\u2019arr\u00eat, l\u2019eau \u00e0 temp\u00e9rature ambiante se dilate, le volume d\u2019eau dilat\u00e9 p\u00e9n\u00e8tre dans le vase
\net comprime la membrane.<\/p>\n","protected":false},"excerpt":{"rendered":"

R\u00e9f\u00e9rence : X7A1080 \/\/ Code article : 3400.200<\/p>\n","protected":false},"featured_media":3968,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[86],"product_cat":[87],"product_tag":[],"class_list":{"0":"post-3970","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-pedrollo","7":"product_cat-reservoirs","9":"first","10":"instock","11":"taxable","12":"shipping-taxable","13":"product-type-simple"},"yoast_head":"\nR\u00e9servoir sur pieds V 200 VAREM -<\/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:\/\/www.ets-giroud.fr\/index.php\/produit\/reservoir-sur-pieds-v-200-varem\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"R\u00e9servoir sur pieds V 200 VAREM -\" \/>\n<meta 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