Lavatory service shut-off valve

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

Patent

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F16K 31/08 (2006.01) F16K 15/18 (2006.01) F16K 21/18 (2006.01)

Patent

CA 2447989

A shut off valve (10) is provided for use in an aiarcraft lavatory system (70) during maintenance sanitizing operations. The shut off valve includes an inlet passage (20) in intermittent fluid communication with an outlet passage (30) and a magnetic flapper body (40) movable between a rest position and a seal position between said inlet passage and said outlet passage. The flapper body is moved by a magnetic actuator (60) whereby upon placing said magnetic actuator within the proximity of the flapper body, the flapper body is moved form the rest position and, with the assistance of fluid flow within the valve, into the seal position, thus preventing fluid communication between the inlet passage and the outlet passage.

Cette invention se rapporte à un robinet de fermeture (10), conçu pour être utilisé dans un système de toilettes d'avion (70) pendant les opérations de désinfection de maintenance. Ce robinet de fermeture comprend un passage d'entrée (20) en communication intermittente avec un passage de sortie (30) et un corps à clapet magnétique (40) pouvant se déplacer entre une position de repos et une position d'étanchéité, entre le passage d'entrée et le passage de sortie. Ce corps à clapet est déplacé par un actuateur magnétique (60), de telle sorte que, en plaçant l'actuateur magnétique à proximité du corps à clapet, celui-ci passe de la position de repos à la position d'étanchéité, avec l'assistance de l'écoulement fluide à l'intérieur du robinet, empêchant ainsi toute communication de fluide entre le passage d'entrée et le passage de sortie.

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