Globe Valve, also called cut-off valve, is one of the most widely used valves. The reason why it is popular is that the friction between the sealing surfaces is small during the opening and closing process, it is relatively durable, the opening height is not large, and it is easy to manufacture. , easy maintenance, not only suitable for medium and low pressure, but also suitable for high pressure. The closing principle of the globe valve is to rely on the pressure of the valve rod to make the sealing surface of the disc and the sealing surface of the valve seat fit closely to prevent the flow of medium. my country's valve "three to" has stipulated that the flow direction of the cut-off valve should be from top to bottom, so there is directionality in installation. The structural length of the stop valve is longer than that of the
Gate Valve, and at the same time, the fluid resistance is large, and the sealing reliability is not strong during long-term operation.
As one of the most important cut-off valves, the globe valve plays an important role in the aerospace field. As an important component of aerospace equipment, the globe valve realizes the functions of medium transmission, cut-off, adjustment, etc., and its sealing performance directly affects the safe and reliable operation of aerospace equipment. Studying the influencing factors and influencing laws of typical globe valve sealing characteristics has guiding significance for the structural design of the valve sealing pair, thereby improving the sealing performance and reliability of the valve.
WUXI KVC-VALVE