Abstract: Embodiments of the disclosure provide an adapter valve assembly and a method for installing an adapter valve assembly that allows for independent control of fluid flow at an individual nozzle assembly. The adapter valve assembly can include a ball valve that can be actuated by electricity to change its position. The adapter valve assembly can function independent of the pressure or flow within the system and can be actuated as desired by the user. The adapter valve assembly can also have internal threads which can connect with the existing external threads on nozzle assemblies already installed in the field. Therefore, the adapter valve assembly can be used for retrofit applications.