The ball valve emerged in the 1950s, and with the rapid development of science and technology, continuous improvements in manufacturing processes and product structures, it has quickly evolved into a major type of valve within a short span of 40 years. In industrially advanced Western countries, the utilization of ball valves is steadily increasing year by year.
The structure of ball valves is simple and compact, with reliable sealing and easy maintenance. The sealing surface and ball surface are usually in a closed state, making them resistant to erosion by the medium. They are easy to operate and maintain and are suitable for general working media such as water, solvents, acids, and natural gas. They are primarily used for shutting off or connecting media in pipelines and can also be used for fluid regulation and control. So, apart from these features, what other characteristics do ball valves possess?
Due to the valve core of hard-sealed ball valves being alloy steel spray-welded and the sealing ring being alloy steel overlay-welded, hard-sealed ball valves experience minimal wear during switching operations. (Its hardness coefficient is 65-70).
The sealing of hard-sealed ball valves is achieved through manual grinding until the valve core and the sealing ring are a perfect match before use. Consequently, their sealing performance is reliable.
The bottom of the sealing ring in hard-sealed ball valves features a spring that tightly holds the sealing ring against the valve core. This results in a very light switch when external forces exceed the spring's pre-tension force.
Due to their extended service life, ball valves have been widely applied in various sectors, including petroleum, chemical, power generation, papermaking, nuclear energy, aerospace, rockets, and everyday life.
The simple and compact structure of ball valves, combined with reliable sealing, easy maintenance, and their ability to resist medium erosion, make them suitable for general working media such as water, solvents, acids, and natural gas. They are primarily used for shutting off or connecting media in pipelines and can also be used for fluid regulation and control.
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