In the process of designing and producing high-pressure globe valves, check valves, low-pressure gate valves and other valves, there will be a certain impact on the production quality due to the influence of some objective factors. In order to improve the quality of high-pressure globe valves, check valves, and low-pressure gate valves, it is necessary to conduct a comprehensive analysis of the sealing, strengthen the control of flow, and continuously improve production quality and the performance of high-pressure globe valves, check valves, and low-pressure gate valves, providing a certain guarantee for the stable development of the industry in China.
Common causes of failures of valve sealing are as follows:
1. Media
In the actual production process, when the medium passes through the globe valve, the flow resistance will increase due to the influence of some objective factors, and its pressure will decrease at this time. If the staff cannot effectively solve this problem in this process, cavitation will occur when the medium saturated vapor pressure is low. Affected by factors such as squeezing air bubbles, defects will occur in the valve seat and the sealing will fail. Therefore, in this context, to effectively prevent other factors from affecting the production process of high-pressure globe valves, check valves, and low-pressure gate valves, technologies such as vapor deposition are generally used, optimizing the internal structure of high-pressure globe valves, check valves and low-pressure gate valves, effectively reducing the loss of flow resistance, strengthening the long-term protection of the valve seal, and continuously improving the quality of production.
2. Materials containing suspended and solid impurities
In the process of manufacturing valves, if the quality of the material is not properly controlled, it will also lead to the failure of the seal, which will cause problems such as leakages. In this process, technicians can continuously optimize the medium and select the appropriate valve according to the operating temperature and pressure, which can effectively reduce the occurrence of related problems to a certain extent. In this process, the staff also needs to carry out regular maintenance, and take effective measures for specific problems to continuously improve the quality of materials. It is necessary to ensure that the selected valve parts meet the relevant production requirements so as to strengthen the reasonable application of high-pressure globe valves, check valves, low-pressure gate valves and other valves in the specific working process to avoid the problem caused by the quality and guarantee safe use of valves.
3. Stress
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 occur in a short time, which will cause the sealing material to scorch, and seriously affect the sealing system of high-pressure globe valves, check valves, and low-pressure gate valves.
