Valve device

1. A dispensing device with a housing, the housing comprising:

a CF valve configured to interact with an inlet stream, the inlet stream having a first pressure, the valve having an outlet area with an outlet stream, the outlet stream having a second pressure;

a solenoid configured to interact with the outlet stream; and

wherein the CF Valve is configured to maintain a relative constant flow of fluid from a variable pressure fluid supply to a fluid outlet, the CF Valve including: a) a valve housing having an inlet port and an outlet port aligned in an axial manner and adapted to be connected to the variable pressure fluid supply and the fluid outlet; b) a diaphragm chamber interposed between the inlet port and the outlet port, the inlet port being separated from the diaphragm chamber by a barrier wall, the barrier wall having a first passageway extending therethrough from an inner side facing the diaphragm chamber to an outer side facing the inlet port; c) a cup contained within the diaphragm chamber, the cup having a cylindrical side wall extending from a bottom wall facing the outlet port circular rim surrounding an open mouth facing the inner side of the barrier wall, the cylindrical side wall and the bottom wall of the cup being spaced in an inward direction from adjacent interior surfaces of the valve housing to define a second passageway connecting the diaphragm chamber to the outlet port; d) a resilient disc-shaped diaphragm closing the open mouth of the cup, the resilient disc-shaped diaphragm being supported by the circular rim and having a peripheral flange overlapping the cylindrical side wall; e) a piston assembly secured to a center of the resilient disc-shaped diaphragm, the piston assembly having a cap on one side of the resilient disc-shaped diaphragm facing the inner side of the barrier wall, and a base suspended from an opposite side of the resilient disc-shaped diaphragm and projecting into the interior of the cup; f) a stem projecting from the cap through the first passageway in the barrier wall to terminate in a valve head, the valve head and the outer side of the barrier wall being configured to define a control orifice connecting the inlet port to the diaphragm chamber via the first passageway; and g) a spring device in the cup coacting with the base of the piston assembly for urging in a resilient manner the resilient disc-shaped diaphragm into a closed position against the inner side of the barrier wall to thereby prevent fluid flow from the inlet port via the first passageway into the diaphragm chamber, the spring device being responsive to fluid pressure above a predetermined level applied to the resilient disc-shaped diaphragm via the inlet port and the first passageway by accommodating movement of the resilient disc-shaped diaphragm away from the inner side of the barrier wall, with the valve head on the stem being moved to adjust a size of the control orifice, thereby maintaining the relative constant flow of fluid from the inlet port through the first passageway and the second passageway to the outlet port for delivery to the fluid outlet.

2. The dispensing device of claim 1 , wherein at east one of the inlet stream and the outlet stream is a carbonated water.

3. The dispensing device of claim 1 , wherein the first pressure is greater than the second pressure.

4. The dispensing device of claim 1 , wherein the inlet stream is a utility line.

5. The dispensing device of claim 1 , further comprising an orifice coupled to at least one of the solenoid, and the CF Valve.

6. The dispensing device of claim 5 , wherein the orifice is fixed.

7. The dispensing device of claim 5 , wherein the orifice is adjustable.

8. The dispensing device of claim 1 , wherein the valve is a CF Valve.

9. The dispensing device of claim 1 , wherein the housing further comprises a solenoid plunger.

10. The dispensing device of claim 9 , wherein the solenoid plunger is located between the valve and the solenoid.

11. The dispensing device of claim 1 , wherein the inlet stream and the outlet stream are in a serial position relative to each other.