Product Profile
381R angular stroke electronic electric actuator uses 220V AC single-phase power supply as driving power, accepts control signals from regulators (DC4-20mA or DCl-SV), and realizes a new type of actuator with predetermined angular displacement (Q-90 C). When this series of actuators are used as actuators of control valves, they have almost all kinds of action transformation functions required by the control valves themselves, as well as valve opening signal functions and manual functions.
Detailed introduction
Electronic Electric Actuator of Angular Travel Electric Actuator of Electronic Angular Travel Electric Actuator of Electronic Electric Actuator of Electronic Angular Travel Electric Actuator
Yangzhou Bell Valve Control Co., Ltd. specializes in the production of Siemens electric actuator, Rotok electric actuator, Germany PS electric actuator, compact electric actuator, LQ series electric actuator, DKZ direct stroke electric actuator, DKJ angular stroke electric actuator, DQW partial rotary electric actuator, DZW multi-rotary electric actuator. It is widely used in power, steel plant, petroleum, metallurgy, chemical industry, building and water supply and drainage automation industry, such as electric actuators, 3810 series electronic electric actuators, electric valve controllers, electric gate valves, electric shutoff valves, electric butterfly valves, electric ball valves, electric regulating valves, check valves, solenoid valves and cut-off valves.
Introduction of 381R Angle Travel Electronic Electric Actuator Products
3810 angle travel electronic electric actuator is a new type of actuator, which uses 220V AC single-phase power supply as driving power supply and receives control signals from regulators (DC4-20mA or DCl-SV) to achieve predetermined angular displacement (Q-90 C). When this series of actuators are used as actuators of control valves, they have almost all kinds of action transformation functions required by the control valves themselves, as well as valve opening signal functions and manual functions. Therefore, it should be widely used in power generation, metallurgy, petrochemical, light industry and environmental protection industries.

II. Main Technical Parameters of Electronic Electric Actuator with 381R Angular Travel
1. Power Supply
AC220V + 10%, 50HZ
2. Power Consumption (at rated load)
Specification A type actuator 50VA;
Specification B actuator 150 VA;
Specification C type actuator 220VA.
3. Input signal
Dc4 - 20mA or DCl - SV.
4. Output signal
DC4 - 20mA (load resistance below 500Q).
5. Control Accuracy
Basic error: +1%; Backlash < 1%; Dead zone < 1%.
6. Adjustment range of working angle
"Zero" + 25%;
"Angle" 20% - 100%.
7. Shielded cables should be used for input and output signals of external wiring. The power cord shall not share one cable with the signal line.
3. Structural description of electronic electric actuator with 381R angular stroke

1. Controller: Accept the DC4-20mA or DC1-5V signals from the regulator, and control the actuator to work in a predetermined mode.
2. Drive mechanism; turn the rotational motion of motor into angular displacement (0-90 degree) motion of power output shaft to realize the switch and regulation function of control valve.
3. Opening detection mechanism: the angular displacement of the output shaft, i.e. the opening of the valve core (0-90 degrees), is fed back to the potentiometer through the gear mechanism, and the potentiometer is converted into electrical signal and fed back to the controller. When the difference between the input signal from the regulator and the opening signal of the valve core is zero, the motor will stop working.
4. Connecting mechanism: The actuator output shaft and the valve stem are connected by the support river actuator and the controlled valve.
5. Manual mechanism: The actuator also has a handwheel mechanism, which can be operated manually to complete the opening, closing and regulating functions of the control valve when power is cut off.
Installation instructions for electronic electric actuators with 381R angular stroke
1. Because the wiring, adjustment, inspection and maintenance of the actuator require the removal of the shield, there should be some space at the top of the actuator when it is installed.
2. The installation posture of the actuator should be as vertical as possible to avoid downward inversion, which brings difficulties to inspection and maintenance.
3. In order to prevent lead wire from outside wiring, the shield should be fixed after day construction, wiring, adjustment, inspection and maintenance.
4. Installation of flameproof actuators must strictly comply with the provisions of the Safety Regulations for Dangerous Places of the People's Republic of China.
When internal and external grounding should be firmly and reliably checked and repaired, the power supply should be cut off first, then the protective cover and the connection terminals of the power supply should be opened. The creepage distance and electrical clearance should be greater than 8 mm. The sealing ring should be checked regularly for ageing and failure. When failing, the sealing rings of the same specifications and the product shell should be replaced in time, and the surface temperature of the sealing rings should be kept clean. Over 130 C

Bell solemnly promises that all products have passed all kinds of strict quality control operations and performance tests before they leave the factory, and will be guaranteed for one year under normal service conditions from now on. However, disasters that are not human-powered, damage by external forces, and dismantlement without the consent of the company are not included in the scope of warranty.
Electronic Electric Actuator of Angular Travel Electric Actuator of Electronic Angular Travel Electric Actuator of Electronic Electric Actuator of Electronic Angular Travel Electric Actuator