The history of valve development

 The valve is the control device of the fluid pipeline. Its basic function is to connect or cut off the flow of the medium in the pipeline, change the flow of the medium, change the flow direction of the medium, adjust the pressure and flow of the medium, and protect the normal operation of the equipment in the pipeline.

 With the continuous development of modern industry, the demand for valves continues to increase. A modern petrochemical plant needs tens of thousands of various valves, and the valve usage is large. Frequent opening and closing, but often due to improper manufacturing, use, selection, and maintenance, running, running, dripping, and leaking occur, resulting in flames, explosions, poisoning, and scalding accidents, or resulting in poor product quality, increased energy consumption, and equipment corrosion. , the increase in material consumption, environmental pollution, and even accidents such as production stoppages are not uncommon. Therefore, people hope to obtain high-quality valves but also require to improve the use and maintenance level of valves. At this time, valve operators, maintenance personnel, and engineering technicians put forward new requirements, in addition to careful design, reasonable selection, and correct operation of the valve, but also timely maintenance and repair of the valve, so that the valve is "running, running, dripping, leaking" and various accidents are minimized.