Globe Valve Working Principle & Characteristics

The valve plays an important role in cutting off and throttling the medium in the pipeline where it is located. As an extremely important cut-off valve, the shut-off valve is sealed by applying torque to the valve stem. The valve disc exerts pressure to make the sealing surface of the valve disc closely fit the sealing surface of the valve seat, and prevent the medium from leaking along the gap between the sealing surfaces.

Compared with another commonly used shut-off valve in industrial production, an alarm valve, the shut-off valve is simpler than the former in terms of structure, and is easy to manufacture and maintain. In terms of service life, the sealing surface of the globe valve is not easy to wear and scratch. During the opening and closing process of the valve, there is no relative sliding between the valve disc and the sealing surface of the seat, so the wear and abrasion of the sealing surface are small, so the sealing is improved. During the full closing process of the auxiliary service life stop valve, the disc stroke is small, and its height is smaller than that of the alarm valve. The disadvantage of the globe valve is that the opening and closing torque is large and it is difficult to achieve rapid opening and closing. Due to the tortuous flow path in the valve body, the fluid flow resistance is large, resulting in a large loss of fluid power in the pipeline.