Abstract: A dual inlet backflow prevention valve for preventing mixture between two inlets. The dual inlet backflow prevention valve includes a tubular member having a first portion, a second portion and a middle portion. A first opening extends through the tubular member along a longitudinal axis of the tubular member. Each of the first and second portions defines an inlet duct. A second opening extends into a peripheral wall of the middle portion and into the opening and defines an outlet duct. A pair of saddles is positioned in the middle portion and spaced from each other. Each of the saddle has an aperture extending therethrough and being coaxial with the first opening. Each of the saddles comprises a magnetized material. A bearing is positioned in the middle portion and comprises a metal material. The bearing has a diameter greater than an inner diameter of the apertures in of the saddles.