The introduction of Control valve

                                 The introduction of Control valve

In the field of industrial automation process control, the regulating valve, also known as the control valve, is the final control element that changes the medium flow, pressure, temperature, liquid level and other process parameters by receiving the control signal output from the regulating control unit and by means of power operation. It is generally composed of actuator and valve. 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 pneumatic control valve, electric control valve and hydraulic control valve; According to its functions and characteristics, it can be divided into linear characteristics, equal percentage characteristics and parabolic characteristics. The regulating valve is applicable to air, water, steam, various corrosive media, mud, oil and other media. English Name: control valve, tag number usually starts with FV. Commonly used classification of control valve: pneumatic control valve, electric control valve, hydraulic control valve, self operated control valve.