Globe valve is one of the most widely used valves. It is popular because of the small friction between the sealing surfaces in the process of opening and closing, the durability, the small opening height, easy manufacture and easy maintenance. It is not only suitable for medium and low pressure, but also suitable for high pressure. The closing principle of globe valve is to make the disc sealing surface and the seat sealing surface closely adhere to prevent the flow of media by relying on the pressure of the valve bar.
The medium in the valve pipeline plays an important role in cutting off and throttling. The globe valve seal is to exert torque on the stem, and the stem exerts pressure on the disc in the axial direction, so that the sealing surface of the disc and the sealing surface of the valve seat closely adhere to prevent the leakage of the medium along the gap between the sealing surface.