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Working principle of electric regulating valve

by:Lianke Valve     2022-08-20
Working principle of electric regulating valve Working power supply: DC24V, AC220V, AC380V and other voltage levels. Input control signal: DC4-20MA or DC1-5V. Electric control valve feedback control signal: DC4-20MA (load electric resistance below 500 ohms) Drive the valve to change the cross-sectional area between the valve core and the valve seat by receiving the signal from the industrial automation control system (such as: 4~20mA) Control the pipeline Process parameters such as flow, temperature and pressure of the medium. Realize automatic adjustment function. The new type of electric control valve actuator contains feeding function, which accepts a unified standard signal of 4-20mA or 1-5V·DC, converts the current signal into a corresponding linear displacement, and automatically controls the opening of the control valve, so as to meet the requirements of the pipeline. Continuous adjustment of process parameters such as pressure, flow, temperature and liquid level of the internal fluid. The flow characteristics of the electric control valve The flow characteristics of the electric control valve are the relationship between the relative flow of the medium flowing through the electric control valve and its opening under the condition that the pressure difference between the two ends of the valve remains constant. The flow characteristics of the electric regulating valve are: linear characteristics, equal percentage characteristics and parabolic characteristics.
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