Control valve application principle

·The regulating valve consists of an actuator and a valve body. Contains the function of feeding and serving, and accepts a unified 4-20mA or 1-5V. The standard signal of DC converts the current signal into the corresponding linear displacement, and automatically controls the opening of the regulating valve to achieve continuous adjustment of process parameters such as pressure, flow, temperature, and liquid level of the fluid in the pipeline. It is widely used in production automation control of electric power, metallurgy, chemical industry, petroleum, textile, pharmaceutical, papermaking and other industrial sectors.  

·Regulating valve, also known as flow control valve, in the field of industrial automation process control, by accepting the control signal output by the regulating control unit, the regulating valve uses power operation to change the final control element of process parameters such as medium flow, pressure, temperature, liquid level, etc. . Generally composed of actuators and valves. According to the stroke characteristics, the regulating valve can be divided into straight stroke and angular stroke; according to the power used by the actuator, it can be divided into linear characteristics, equal percentage characteristics and parabolic characteristics according to its functions and characteristics. Suitable for air, water, steam, various corrosive media, mud, oil and other media.