Shut-off valve, especially for pressurized carbonated liquids in automatic beverage dispensers or the like

Claim 1

Valve assembly for a pressurized carbonated liquid in an automatic beverage dispenser including a shut-off valve and an expansion device formed as a conical diffusor with a hollow interior connected to the shut-off valve downstream therefrom in flow direction of the liquid in the dispenser, comprising an expansion cone disposed in the diffusor and having a taper corresponding substantially to that of the diffusor, said expansion cone having a threaded section at said base thereof, and said outlet of the diffusor being formed with an internal thread wherein said threaded section is screwable, said threaded section having a free end formed with means for receiving a tool therein in a positive locking manner, said expansion cone being adjustably displaceable in axial direction thereof, the conical diffuser being disposed in an outlet of the valve assembly directly downstream from the shut-off valve and comprising a nipple-like insert formed with an external thread and having a shoulder substantially at the middle thereof, said expansion cone being formed with a plurality of bores extending from an exterior surrounding surface thereof to a central interior bore extending from a base thereof.