Globe valves have a disk which can completely open or completely close the flow path. This is done with the perpendicular movement of the disk away from the seat. The annular space between the disk and seat ring gradually changes to allow fluid flow through the valve. As the fluid travels through the valve it changes direction many times and increases the pressure. In most cases, globe valves are installed with the stem vertical and the fluid stream connected to the pipe side above the disk. This helps to maintain a tight seal when the valve is fully closed. When the globe valve is open, the fluid flows through the space between the edge of the disk and the seat. The flow rate for the media is determined by the distance between the valve plug and the valve seat.