Structurally:
The length of the gate valve is shorter than that of the globe valve, and the height is higher than that of the globe valve. The installation of the rising stem gate valve should pay attention to the size. They should be paid attention to when the installation space is limited. The gate valve can be tightly closed with the sealing surface by the medium pressure to achieve the effect of no leakage. When opening and closing, the valve core and the valve seat sealing surface are always in contact and friction with each other, so the sealing surface is easy to wear.
In principle:
The difference between the globe valve and gate valve is that the globe valve is of a rising stem type, and the handwheel rotates and ascends together with the stem. The handwheel turns the gate valve, and the valve stem moves upward. Flow rates vary, gate valves require fully open or fully closed, and globe valves do not. Globe valves have specified inlet and outlet directions; gate valves have no requirements for channel and outlet directions.
