Adjustable inlet valve with air gap

E - Fixed Constructions – 03 – C

Patent

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Details

E03C 1/10 (2006.01) E03D 1/32 (2006.01) F16K 31/30 (2006.01)

Patent

CA 2540069

A valve arrangement for use in the cistern (8) of a toilet is described having an inlet valve (20) operated by a float (46) such that when the level of water in the cistern reaches a threshold amount, the float operates the inlet valve to substantially instantaneously close the supply of incoming water. The inlet valve of the valve arrangement is provided with an air gap or clearance (51) to eliminate, prevent or reduce siphoning of water from the cistern into the water supply when the valve is in the fully closed position. The air gap allows water within the inlet valve to drain into the cistern so as to form the air gap.

L'invention concerne un agencement clapet que l'on utilise dans le réservoir (8) d'un WC présentant un clapet d'entrée (20) commandé par un flotteur (46) de manière que, lorsque le niveau de l'eau contenue dans le réservoir atteint un seuil, le flotteur met en marche le clapet d'entrée pour fermer sensiblement de manière instantanée l'administration d'eau entrante. Le clapet d'entrée de l'agencement clapet est doté d'un espace d'air (51) permettant d'éliminer, d'éviter ou de réduire le siphonnement de l'eau depuis le réservoir jusque dans l'administration d'eau lorsque le clapet est dans la position complètement fermée. L'espace d'air permet à l'eau contenue dans le clapet d'entrée d'être purgée dans le réservoir de manière à former un espace d'air.

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