Abstract: Certain aspects relate to systems and techniques for smart draft beer taps that can dynamically vary flow rate and control the amount of dispensed head based on one or more of sensed parameters of the beer, the draft beer environment, characteristics of the beer, and on brewery specified pouring standards. The disclosed systems provide networked data communication relating to bar draft beer pouring conditions.

Abstract: An inflating device includes a bottle for containing a pressurized air, a housing is secured to the bottle and includes an orifice communicating with an inner chamber of the bottle, a valve piece is engaged in the housing and includes a shank engaged in the orifice of the housing, and a spring biasing member is engaged with the valve piece for biasing the valve piece to engage with the housing and to make an air tight seal between the housing and the valve piece. The pressurized air and a fluid contained in the bottle are allowed to flow out through the orifice of the housing when the pressurized air includes a pressure greater than a spring biasing force of the spring biasing member.