A flyweight system includes a base defining a through-bore for connection to a flyweight governor. The base defines a track therein. A magnet is seated in the track of the base. A tab is mounted to the base, sandwiching the magnet between the base and the tab to retain the magnet in the track.

A flyweight system includes a base defining a through-bore for connection to a flyweight governor. The base defines a track therein. A magnet is seated in the track of the base. A tab is mounted to the base, sandwiching the magnet between the base and the tab to retain the magnet in the track.

An automatic control valve actuator assembly is configured to control opening and closing of the valve via positioning of a valve closure member. The valve actuator is further configured to determine the volume of fluid flowing through the valve. In an embodiment, the valve actuator includes an integral energy consumption calculation and retention module configured to calculate heat energy for energy consumption tracking.