Backflow preventer apparatus and method with integration of...

Details Backflow preventer apparatus and method with integration of... Backflow preventer apparatus and method with integration of...

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 27/00 (2006.01) E03B 7/07 (2006.01)

Patent

CA 2407422

Backflow prevention is provided in connection with a device having one or more shut-off valves (414a, 414b) integrated with backflow preventer check valves (412a, 412b), and housing (114). No flange or other connection between shut-off valves and backflow preventer check valves is required, reducing size, weight and labor requirements. The system can substantially reduce or eliminate potential for installation of double-check-valve backflow preventer devices without shut-off valves.

La présente invention concerne un appareil anti-refoulement qui comprend au moins une vanne d'arrêt (414a, 414b) ainsi que des clapets de non retour intégrés (412a, 412b) et un boîtier (114). Aucune bride ou dispositif de liaison n'est nécessaire entre les vannes d'arrêt et les clapets de non-retour, ce qui réduit la taille, le poids et les besoins en main d'oeuvre. Le système peut sensiblement réduire ou éliminer la possibilité d'installer des dispositifs anti-refoulement à clapet double ne comportant pas de vannes d'arrêt.

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