1) The globe valve is named after its shape. Its body has an interior partition, and the valve inlet and outlet centers are inline. This configuration forces a change in the direction of flow in the form of an S.
2) The disc impedes the flow of fluid by pressing against the seat in the partition. Concept: Force against.
3) By simply changing the disc shape, globe valves can be used for both throttling (controlling flow rate) and for on and off flow control.