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Sans traitement, les raccords en fonte sont idéaux pour les réseaux de chauffage, mais ne peuvent pas être utilisés pour la distribution d’eau potable. En effet, contrairement aux raccords... Lire la suite
À partir de 10,90 € 9,08 € HT
3 versions
À partir de 3,00 € 2,50 € HT
6 versions
Sans traitement, les raccords en fonte sont idéaux pour les réseaux de chauffage, mais ne peuvent pas être utilisés pour la distribution d’eau potable. En effet, contrairement aux raccords galvanisés, ils ne disposent pas d’une couche protectrice de zinc, ce qui les rend moins résistants à la corrosion, mais ils offrent une excellente résistance aux pressions et aux températures élevées. Ils se distinguent aussi par leur durabilité et leur capacité à maintenir une étanchéité parfaite, ce qui est essentiel pour éviter les fuites et les ruptures de conduite. En outre, les raccords en fonte non traités sont plus économiques que leurs homologues galvanisés, ce qui est particulièrement intéressant pour des projets à budget limité.
Si le terme de « fonte » est souvent utilisé pour désigner des raccords en fonte noire ou en acier noir, elle correspond à un produit spécifique privilégié pour des applications précises. En effet, tout comme l’acier, la fonte est un mélange de fer et de carbone, mais contrairement à l’acier, elle contient plus de 2 % de carbone (généralement entre 2 et 4 %, voire plus pour la fonte hypereutectique). Cette plus haute teneur la rend plus dure et plus cassante que l’acier, mais lui offre aussi une excellente résistance à la pression, à la dilatation et à l’usure. Dans certains environnements, la fonte malléable offre aussi une meilleure résistance à la corrosion. Pour toutes ces qualités, elle est très utilisée pour la fabrication de pièces de machines, de disques de frein et de radiateurs de chauffage. Ses propriétés sont aussi parfaites pour les réseaux de canalisation et notamment pour la conception des raccords. Voici quelques informations qui expliquent pourquoi ils sont encore très utilisé en plomberie.
Les raccords en fonte se déclinent en plusieurs types, chacun adapté à des applications spécifiques. Les plus courants sont les coudes, utilisés pour changer la direction des conduites, les tés, pour diviser ou combiner des flux, et les manchons, pour relier deux sections de tuyau. Mais il existe aussi des bobines, des bouchons, des réductions, des unions et des modèles associant plusieurs fonctions comme des tés avec réduction, par exemple. Disponibles en plusieurs tailles, avec des filetages de différentes dimensions et de nombreuses combinaisons de réduction, ils permettent une grande flexibilité d’utilisation et répondent à tous les besoins pour la réparation d’un réseau existant. À visser, ils s’installent et se remplacent avec une grande facilité et sont idéaux dans les installations où l’accessibilité est primordiale.
Besoin de plus de détails sur ces raccords ou spécifiquement sur une référence en vente (filetage, gamme, joint ...) ? Nos conseillers sont là pour vous aider. N'hésitez pas à les contacter par téléphone ou directement via le chat.
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