In light load scenarios such as water treatment, environmental protection, food and medicine, fine control of small and medium-sized valves and regulating valves is the core to ensure process accuracy. These types of valves usually require frequent adjustment of opening to control parameters such as flow rate and liquid level. Traditional actuators are prone to problems such as large positioning errors, slow adjustment response, and poor adaptability, making it difficult to meet the precision control requirements in light load scenarios.Rotork DKJ series electric actuatorBecome a valve fine control expert in light load scenarios, providing efficient and accurate solutions for the automation control of small and medium-sized valves, and helping to achieve high-quality production in light load process scenarios.

The highlight of the DKJ series electric actuator is its high-precision adjustment, which meets the fine control requirements of light load processes. The DKJ series adopts lightweight design and precision control technology for light-duty valves such as butterfly valves, ball valves in water treatment, and sanitary valves in food and medicine. The output torque covers 10N · m-1000N · m and is suitable for small and medium-sized valves ranging from DN15 to DN300, avoiding energy waste and reduced control accuracy caused by "big horses pulling small cars"; At the same time, equipped with high-precision potentiometers and servo control systems, the valve positioning accuracy reaches ± 0.2%, and the adjustment response time is ≤ 0.3 seconds, which can achieve micro amplitude adjustment of valve opening and accurately match the flow and liquid level control requirements in light load scenarios. For example, in the aeration system of municipal sewage treatment plants, DN200 butterfly valves need to frequently adjust the aeration air volume according to changes in water quality. The Rotork DKJ series can accurately control the valve opening between 10% and 90% with stepless adjustment, and the aeration air volume error is controlled within ± 5% to ensure stable microbial activity and improve sewage treatment efficiency; In the juice conveying system of food factories, the DKJ series can drive sanitary grade ball valves to achieve precise flow control, avoiding juice filling accuracy deviation caused by flow fluctuations, and increasing the product qualification rate to over 99.8%.

Secondly, light load adaptation and safety design ensure stable operation. Although light load valves have lower loads, they require higher adaptability and safety of the actuator. The Rotork DKJ series adopts miniaturized motors and compact reduction mechanisms, reducing the overall weight by 40% compared to traditional actuators. It can be easily installed in lightweight installation positions such as pipeline supports and equipment panels without the need for additional reinforcement of load-bearing structures, greatly improving installation convenience; At the same time, the actuator has comprehensive safety protection functions: overheating protection can prevent the temperature from being too high due to long-term operation of the motor, locked rotor protection can prevent the actuator from being damaged when the valve is slightly stuck, and manual emergency operation function can control the valve through the handwheel when power is cut off, ensuring that the process is not interrupted.

In terms of intelligence and compatibility, the detailed design of the Rotork DKJ series electric actuator is suitable for light load scenarios. Supporting multiple signal interfaces, including 4-20mA analog signals and switch signals, it can seamlessly integrate with automation equipment such as PLC and frequency converter to achieve remote monitoring and automatic adjustment of valves, and adapt to the needs of automation production lines in water treatment, food and medicine, and other scenarios; The shell is made of IP65 protection grade engineering plastic or cast aluminum material, with excellent waterproof and dustproof performance, and can adapt to damp and dusty environments in the workshop. Some sanitary grade models support 304 stainless steel shells, meeting the hygiene standards of the food and pharmaceutical industry; In addition, the actuator has low power consumption, with standby power ≤ 5W and operating power ≤ 500W, saving more than 30% energy compared to traditional actuators. Long term operation can significantly reduce energy costs, meeting the energy-saving needs of light load scenarios.

From fine control of flow in water treatment to precise regulation in food and medicine, the Rotork DKJ series electric actuators are centered around "high precision, lightweight, and high adaptability", filling the gap in automation control of light-duty valves. Choosing the Rotork DKJ series is not only a choice to improve the control accuracy of light-duty valves, but also a key step in helping to achieve automation upgrades and ensure product quality in light-duty process scenarios, providing strong support for the high-quality development of the light-duty industry.