Flush valve flow control refill ring

E - Fixed Constructions – 03 – D

Patent

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Details

E03D 3/12 (2006.01) E03D 3/06 (2006.01) F16K 31/385 (2006.01)

Patent

CA 2121515

A flush valve for use with toilet devices such as urinals and water closets includes a body having an inlet and an outlet. There is a valve seat between the inlet and outlet and a barrel connects the valve seat with the outlet. A diaphragm assembly is positioned within the flush valve and movable toward and away from a closing position on the valve seat to control the flow of water to the outlet. The diaphragm assembly includes a diaphragm peripherally clamped within the flush valve housing and a refill ring extending downstream from the diaphragm. The refill ring has a plurality of circumferentially disposed passages connecting the inlet and outlet when the diaphragm assembly is away from the valve seat. The size of the passages in the refill ring determines the volume of water flow during operation of the flush valve.

Cette invention concerne un robinet de chasse pour appareils sanitaires, urinoirs et toilettes par exemple, qui comprend un corps ayant un orifice d'admission et un orifice de sortie. Entre les deux orifices est prévu un siège de soupape et entre celui-ci et l'orifice de sortie, un manchon. l'intérieur du robinet de chasse se trouve une membrane mobile entre une position fermée en appui sur le siège de soupape et une position ouverte en retrait de celui-ci, membrane qui règle le débit d'eau de chasse par l'orifice de sortie. La membrane est maintenue en place dans le robinet de chasse par son pourtour qui est pincé entre le corps du robinet et un anneau de refoulement disposé en aval. Cet anneau comporte une série de passages ménagés dans son pourtour pour établir la communication entre l'entrée et la sortie du robinet lorsque la membrane est soulevée du siège de soupape. La section de ces passages détermine le volume d'eau débité à la manoeuvre du robinet.

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