Regulating valve, or control valve, refers to a tool used in industrial production to adjust process parameters such as medium flow, pressure, temperature, liquid level, etc. In some automated production links, the opening of the valve can be automatically adjusted according to the control signal in the system, so as to realize the adjustment of medium flow, pressure, temperature, and liquid level. Development History Since the beginning of the 20th century, the development of control valves has produced ten categories of control valve products, self-operated valves and positioners. The specific timeline is as follows: The 1920s: The original regulating valve for pressure stabilization was introduced. The 1930s: The V-type regulating…