The stop valve is a block valve, which mainly plays a role in cutting off the pipeline.
The globe valve is the most used valve, and it is also the most suitable form for throttling. Because it has good adjustment performance, and compared with other structural types of valves, the wear distribution around the stop valve seat due to erosion is more uniform.
The globe valve is a forced-sealing valve. Therefore, how to correctly choose the globe valve valve must apply pressure to the wide flap when it is closed, so that no leakage occurs between the two sealing surfaces. Since the sealing force of the globe valve and the medium pressure are on the same axis, and the directions are opposite, the sealing force not only cannot be amplified, but also overcomes the pressure of the medium, so the sealing force required by the globe valve valve is much greater than that of the gate valve.
Special attention should be paid to the selection of the globe  valve. The globe valve with a flat sealing ring cannot be used for dirty media or media containing solid particles. In this medium, it is more appropriate to use a tapered sealing surface to seal.
Generally, cut-off valves are recommended for throttling, regulation, and high-pressure pipeline systems; cut-off valves can be selected for two-position adjustment, light and small structure requirements, no strict requirements on structure length, low pressure cut-off (small pressure difference), and high-temperature media. ; In the mud, the medium containing particles of the same body, wear resistance, diameter shrinkage, fast action (multi-turn or open and close), and low operating force, try not to choose a stop valve; when it requires good sealing performance, high pressure cut-off (large pressure difference) ), low noise, cavitation and vaporization, a small amount of leakage to the atmosphere, abrasive media, low temperature and deep cold, you can use a special design structure of the globe valve .
Another important feature of the globe valve is that the seal of the valve stem can be replaced by a bellows instead of packing to form a bellows globe valve. The bellows globe valve is suitable for flammable, explosive, toxic, and pure media, and it can also meet the requirements of the vacuum system.
However, the globe  valve also has its shortcomings, mainly caused by the internal shape of the valve body. In the globe valve body cavity, the medium changes from a horizontal straight flow to an upward or downward vertical flow, and then to a horizontal flow, which results in pressure loss, especially in hydraulic devices. This kind of pressure loss should attract enough attention.