In the specific production process, the start and stop of the factory will cause the pressure to be high and low, and the drastic change of the pressure at this time will lead to dry friction of the sealing surface. If the technician does not analyze this problem, heat will be generated in a short time. , These heat will cause the sealing material to scorch, which will seriously affect the sealing system of the high-pressure globe valve, check valve, and low-pressure gate valve.
