No-drip check valves

Details No-drip check valves No-drip check valves

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 15/14 (2006.01)

Patent

CA 2648550

A mechanism to check fluid flow from a tube or spigot when it is disconnected from a downstream conduit is provided. The mechanism includes a duckbill check valve that has its bills pointed in the upstream direction. To keep the bills apart for the fluid flow to continue, the downstream conduit has to be inserted against the underside of the bills. Once the downstream conduit separates from the valve, the valve closes itself.

L'invention concerne un mécanisme empêchant l'écoulement de fluide d'un tube ou d'un robinet lorsqu'il est déconnecté d'une conduite en aval. Le mécanisme comprend un clapet anti-retour à bec de canard dont les dents sont orientées vers l'amont. Pour garder les dents ouvertes et permettre au fluide de continuer à s'écouler, la conduite en aval doit être insérée contre le dessous des dents. Lorsque la conduite en aval est séparée du clapet, le clapet se ferme.

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