Specific functions and principles
Youdaoplaceholder0 control fluid parameters : Electric valves are mainly used to accurately control parameters such as the flow rate, pressure and liquid level of fluids (liquids, gases, steam, etc.) in pipelines. In industrial production processes, electric valves can achieve automated fluid control, ensuring the stability and safety of the production process .
Youdaoplaceholder0 Signal transmission and control : The electric actuator receives electrical signals (such as 4-20mA current signals or 0-10V voltage signals) from the control system (such as DCS), and converts the high-speed rotational motion into linear or rotational motion of the valve core or gate through the reduction mechanism (such as gears, worm gears, etc.), thereby opening or closing the valve .
Feedback and monitoring : The electric actuator of an electric valve is usually equipped with feedback devices such as position transmitters, which feed back the actual opening degree or status information of the valve to the control system, enabling remote monitoring and regulation .
Application scenarios
Electric valves are widely used in multiple industries such as petroleum, chemical engineering, power, metallurgy, pharmaceuticals, food, and water treatment. In these industries, electric valves undertake tasks such as controlling the flow rate, pressure, and direction of various fluid media, and are one of the key devices to ensure the safe, stable, and efficient operation of the production process.