DKJ-210 Quarter-turn Electric Actuator for On/Off Valves with Electrical Limit Switches

The DKJ type angular travel electric actuator is the execution unit in the DDZ-Ⅱ and Ⅲ series instruments, used in conjunction with DDZ-Ⅱ and Ⅲ control unit instruments. It is powered by AC power, accepts a unified standard signal of 4～20mA, DC (or 0～10mA, DC), input signal and the feedback signal from the position transmitter. Through comparison by the servo amplifier, it outputs a switching signal to drive the motor. After mechanical deceleration, the input signal is converted into a corresponding angular displacement of the output shaft: automatically operating devices such as damper baffles, butterfly valves, and ball valves to complete the system's automatic regulation tasks. It is widely used in regulation systems of industrial sectors such as power plants, metallurgy, petroleum, chemical industry, machinery, light industry, textiles, food, and pharmaceuticals.

1. Input signal: Switching forward and reverse signals (220V AC).

2. Output signal: DC 4-20mA.

3. Effective displacement of output shaft: 0--90º

4. Conversion error: Not greater than ±0.1% FS.

5. Limit setting range: Close limit 0-80%; Open limit 20-100%.

6. Long-term stability: ±0.1% FS.

7. Power supply: AC220V±20%.

8. Ambient temperature: －20-75℃

9. Ambient humidity: ≤95%