The present disclosure relates to a liquid beverage dispensing apparatus and specifically a modular component for installation on and use in conjunction with the liquid beverage dispensing system. The modular component includes a communication interface and controller, an actuator for a valve, for use with a beverage faucet that dispenses the liquid beverage. The actuator is in electronic communication with the communication interface and controller and is responsive to direction received from the communication interface and controller to open or close the valve. The modular component is sized, dimensioned, and configured to be retrofitted to an existing beverage dispensing system to replace an existing conventional manual beverage faucet, or as a newly manufactured system.