The globe valve, also known as the cut-off valve, is the most widely used valve. The reason why it is so popular is because the friction between the sealing surfaces during opening and closing is small, it is more durable, the opening height is not large, it is easy to manufacture, and maintenance Convenient, not only suitable for medium and low pressure, but also suitable for high pressure.
Its closing principle is that, relying on the pressure of the valve stem, the sealing surface of the disc and the sealing surface of the valve seat are closely adhered to prevent the circulation of the medium.
The shut-off valve only allows the medium to flow in one direction, and it is directional during installation. Its structural length is longer than the gate valve, and at the same time, the fluid resistance is large, and the reliability of the seal is not strong during long-term operation.
There are three types of globe valves: straight-through, right-angle and direct-flow oblique globe valves.