ZAZP series electric Direct-through single-seat regulating valve consists of DKZ series direct-stroke electric actuator and Direct-through single-seat valve. It is powered by single-phase AC 220V power supply and receives 0-10mA or 4-20mA DC signal. It automatically controls the opening of regulating valve, so as to achieve continuous adjustment of the process parameters such as pressure, flow rate and liquid level of fluid in pipeline. Festival. The product has the characteristics of sensitive action, convenient energy access and fast signal transmission. It is widely used in industrial automatic control systems such as electric power, metallurgy, chemical industry and textile industry.