So let’s break up the word ‘port-guided globe valve’.
Valve : Essentially a flow control device. Can be used either just for on/off or throttling.
Globe valve: The word ‘globe’ indicates the type of obturator/disk. Obturator is an object used to obstruct a hole. Basically its the valve closure member. Globe obturator indicates a globular/conical closure member. This kind of closure member enables the valve to be used for throttling purposes.
Port-guided: This indicated that the flow path of the fluid in this valve is guided by the geometry of the valve port/bore. So the flow of the fluid is guided by the port and not the plug/disk.