ZAZP, N, and M electric single-seat, bonnet, and double-seat control valves are assembled from imported electric actuators and various valve bodies (single-seat, double-seat, bonnet). They serve as the actuator units within DKZ-type electric unit combination instruments. Electric control valves are a critical component in automated regulation systems for production processes. Powered by AC 220V, they receive standardized 0-10mA DC or 4-20mA DC signals, converting these into corresponding upward or downward displacement to automatically manipulate valve position. This adjusts the valve opening displacement, achieving automated regulation and control of process pipeline fluid parameters such as pressure, flow rate, temperature, and liquid level. ZAZP electric control valves are widely used in the automated regulation and remote control of industrial production processes across sectors including chemical engineering, petroleum, metallurgy, power generation, light industry and textiles, p