Anti-siphon device for a flush valve

E - Fixed Constructions – 03 – C

Patent

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Details

E03C 1/10 (2006.01) F16K 15/00 (2006.01) F16K 24/04 (2006.01)

Patent

CA 2654612

An anti-siphon device for a flush valve comprises an air-inlet sealing diaphragm (2), a diaphragm bracket (3) with an air inlet (8), a flex sleeve (4), a venting bracket (5), and an offsetting spring (6). The deformation power of the air- inlet sealing diaphragm is comparatively small. When compared with existing anti-siphon reflux devices, this anti-siphon device has a very low current pressure loss and can prevent leaking. When the anti-siphon device is applied in heating and plumbing devices, such as a flush valve, the current pressure can be retained and thus satisfactory flush effect is achieved.

L'invention concerne un dispositif anti-siphonnement destiné à un robinet de chasse comportant un diaphragme de fermeture hermétique d'admission d'air, un support de diaphragme avec une admission d'air, une gaine flexible, un support d'évacuation, et un ressort de décalage. La puissance de déformation du diaphragme de fermeture hermétique d'admission d'air est comparativement faible. Par comparaison avec les dispositifs de reflux anti-siphonnement, ce dispositif anti-siphonnement a une perte de pression du courant très faible et peut empêcher les fuites. Lorsque le dispositif anti-siphonnement est utilisé dans des dispositifs de chauffage et de plomberie, tel qu'un robinet de chasse, la pression du courant peut être maintenue et donc un effet de chasse satisfaisant est atteint.

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