Float valve

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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Details

F16K 31/34 (2006.01) E03D 5/02 (2006.01) F16K 31/40 (2006.01)

Patent

CA 2264503

A unitary valve apparatus (200) for use in controlling the filling and the release of fluids from a fluids storage vessel comprises an outlet valve means (212) for controlling release of fluid from said vessel, a filling valve means (254) carried by or on said outlet valve means for controlling filling of said vessel and float means (282) carried by or on one of said outlet valve means or said filling valve means for detecting the level of fluid in said vessel. Each said valve means has or is associated with a respective chamber containing a respective member having a first side and a second side, each of which sides is exposed, in use, to a pressurised fluid. Each said member is independently moveable to open the respective said valve means (212, 254) by the said pressurised fluid acting on the second said side thereof when the said pressurised fluid acting on the first said side thereof is released.

La présente invention a pour objet un appareil à une seule soupape (200) servant à contrôler le remplissage et le vidage des fluides contenus dans une cuve de stockage de fluides. Cet appareil comprend une soupape de déchargement (212) qui commande le déchargement du fluide provenant de ladite cuve, une soupape de remplissage (254) portée par ou sur ladite soupape de déchargement et commandant le remplissage de ladite cuve et un flotteur (282) porté par ou sur la soupape de déchargement ou la soupape de remplissage et servant à détecter le niveau du fluide contenu dans ladite cuve. Chaque soupape possède sa propre chambre contenant chacune un élément doté d'un premier côté et d'un deuxième, chacun de ces côtés étant exposé, en cours d'utilisation, à un fluide pressurisé. Chacun de ces éléments peut être déplacé indépendamment pour permettre l'ouverture desdites soupapes respectives (212, 254). le fluide pressurisé agissant sur le deuxième côté dudit élément lorsque celui qui agit sur le premier côté est libéré.

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