General series electric actuator
- Protection class IP68
- Matching Angle Stroke Valve
Adaptive Valve
Partial rotation
damper
0~90° | 0~360°
Torque/Time
20~2500Nm
4S~75S
Type of control
switching type
regulating type
Supply Voltage
DC24V
AC24V
AC110V
AC220V
AC380V
Input/Output Signal
4~20mA
0~10V
Level | Contacts
Modbus-RTU | CAN | Ethernet
optional
Over-torque protection
Power failure reset
Self-heating dehumidification
self-diagnosis
Adjustment method
Over-torque protection
When the valve is jammed during operation (intermediate position) due to impurities, foreign matter or other reasons in the pipeline, the output torque of the actuator will increase rapidly, and when it reaches the set value (tripping torque), the torque switch will break the circuit, thus protecting the valve and the actuator from damage.
Heating and dehumidifying
The DCL series actuators can be equipped with a PTC electronic heating element in the electrical chamber for use in humid locations with a large temperature difference between day and night to prevent damage to the electrical components due to condensation. The heater is in continuous operation, so it is electrically charged, even when the actuator is not in operation.
Optional Features
Servo Control Modules
DCL's unique circuit design, imported industrial-grade electronic components, and modern circuit board manufacturing process ensure the high quality and reliability of the servo controller. The circuit board is resin molded for better vibration and moisture resistance. Unique electronic braking function, so that the actuator positioning without oscillation, damping characteristics of 0 cycles (standard regulations not more than 3.5 cycles)".
Micro-adjustment of electrical limit travel
With DCL's unique patented design, the actuator's open and closed electrical limit travel can be easily adjusted with only a hexagonal wrench. At the same time, the unique micro-adjustment function makes it possible to adjust the electrical limit travel more accurately.
Patent No.: ZL 201020214725.8
electrical machinery
Due to the working characteristics of the valve, the actuator is required to have the ability to start at full load in the opening, closing and any intermediate position of the valve, which requires the motor of the actuator to have a high starting torque. This requires the actuator motor to have a high starting torque. At the same time, due to the need for version (opening) adjustment, the motor must have a small rotating inertia, and DCL series electric actuator motors have been specially designed to meet these requirements.
When the actuator is blocked, the motor temperature will rise rapidly. When the motor temperature reaches 1252, a PTC thermal protector embedded in the motor windings cuts the circuit to protect the motor and control system. When the motor temperature drops to 90-105W, the circuit will be turned back on.
Electrical and mechanical limits
Electrical Travel Limit Function: When the actuator reaches the fully open or fully closed limit position or the set intermediate position, the built-in electrical limit switch will cut off the circuit to protect the actuator.
Output shaft mechanical limit function: In case of electrical travel limit failure, the output shaft of the actuator will be locked by a mechanical limit device, thus protecting the valve from damage.
The diagram shows the positional relationship between the electrical and mechanical limits.
Functional Features
regulating type
The servo controller is placed inside the actuator and receives commands from the central control system to drive the valve to the appropriate opening position based on changes in the controlled variables in the pipeline (flow, pressure, temperature, level).
Adopting S4 intermittent type working system, the working frequency is up to 1200 times per hour.
switching type
A, B, D, G, H control circuits
Switching models have only fully open and fully closed limit positions; intermediate positions can be preset if desired (models B, D, G, and H). Upon receipt of the appropriate command, the actuator will drive the valve to the fully open, or fully closed, or intermediate positions.
The S2 short-time type working system is adopted, and the continuous running time does not exceed 15 minutes.
feedback-based
C, D, F type control circuits
In the process of driving the valve, the actuator feeds back the valve position signal to the central control system at the same time. types C and D feed back the resistive valve position signal, and type F feeds back the analog valve position signal.
The S2 short-time type working system is adopted, and the continuous running time does not exceed 15 minutes.
control circuit
regulating type
Type E: with servo controller (regulated)
Input: 4~20mA / 0~10V Any configuration.
Output: 4~20mA / 0~10V Any configuration.
Bus: Modbus / CAN
Internet of Things: WIFI/LoRA/4G DTU
feedback-based
F 型 ：带位置发送器
输出4~20mADC 阀 位信号(对阀位实 行全程反馈)。
Type C: with 1KΩ (or 500Ω) potentiometer
通过开关电路实现 “开”、“关”操 作，并输出与开度 位置相对应的电阻 量信号。
D 型 ：带电位器和无源触点位置开关
通过开关电路实现“开”、 “关”操作，并输出与开 度位置相对应的电阻量信 号，同时输出一组全开和 全关无源信号。
switching type
Type A: with limit position switches (active contacts)
Through the switching circuit to realize the "on", "off" operation, and output a set of full open and full closed active signal.
Type B: with intermediate position switch (passive contact)
Through the switching circuit to realize the "on", "off" operation, and output a set of full open and full closed passive signal.
Type G: DC control circuit with passive contact switches
According to the unidirectional conductivity of the diode, by reversing the positive and negative poles of the DC power supply, it realizes the "on" and "off" operation and outputs a set of passive signals of full on and full off.
H 型 ：三相交流控制电路，带无源触点开关
通过外部倒相电路， 使电机正反转，从 而实现“开”、“关” 操作并输出一组全 开和全关无源信号。
Notes:
- 控制电路中虚线框内为执行机构内部电路，虚线框外电路仅供用户接线参考。
- 如需定制控制电路，请联系技术支持。
Selection table
| 型号 | rotation angle | Torque/Time | Type of control | Supply Voltage | Input/Output Signal | Optional Features |
|---|---|---|---|---|---|---|
| DCL-05 | 0~360° 可调 | 20S/50Nm selectable 4S/20Nm 10S/30Nm 60S/50Nm | switching type regulating type | DC24V AC24V AC110V AC220V AC380V | 4~20mA 0~10V Level | Contacts Modbus-RTU | CAN | Ethernet | Over-torque protection Power failure reset Self-heating dehumidification 自诊断和数据记录 |
| DCL-10 | 0~360° 可调 | 30S/100Nm selectable 15S/50Nm 60S/100Nm | switching type regulating type | DC24V AC24V AC110V AC220V AC380V | 4~20mA 0~10V Level | Contacts Modbus-RTU | CAN | Ethernet | Over-torque protection Power failure reset Self-heating dehumidification 自诊断和数据记录 |
| DCL-20 | 0~90° 可调 | 30S/200Nm selectable 15S/100Nm 60S/200Nm | switching type regulating type | DC24V AC24V AC110V AC220V AC380V | 4~20mA 0~10V Level | Contacts Modbus-RTU | CAN | Ethernet | Over-torque protection Power failure reset Self-heating dehumidification 自诊断和数据记录 |
| DCL-40 | 0~90° 可调 | 30S/400Nm selectable 15S/200Nm 60S/400Nm | switching type regulating type | DC24V AC24V AC110V AC220V AC380V | 4~20mA 0~10V Level | Contacts Modbus-RTU | CAN | Ethernet | Over-torque protection Power failure reset Self-heating dehumidification 自诊断和数据记录 |
| DCL-60 | 0~90° 可调 | 45S/600Nm selectable | switching type regulating type | DC24V AC24V AC110V AC220V AC380V | 4~20mA 0~10V Level | Contacts Modbus-RTU | CAN | Ethernet | Over-torque protection Power failure reset Self-heating dehumidification 自诊断和数据记录 |
| DCL-100 | 0~90° 可调 | 30S/1000Nm selectable 15S/500Nm | switching type regulating type | AC110V AC220V AC380V | 4~20mA 0~10V Level | Contacts Modbus-RTU | CAN | Ethernet | Over-torque protection Power failure reset Self-heating dehumidification 自诊断和数据记录 |
| DCL-160 | 0~90° 可调 | 48S/1600Nm | switching type regulating type | AC110V AC220V AC380V | 4~20mA 0~10V Level | Contacts Modbus-RTU | CAN | Ethernet | Over-torque protection Power failure reset Self-heating dehumidification 自诊断和数据记录 |
| DCL-250 | 0~90° 可调 | 75S/2500Nm | switching type regulating type | AC110V AC220V AC380V | 4~20mA 0~10V Level | Contacts Modbus-RTU | CAN | Ethernet | Over-torque protection Power failure reset Self-heating dehumidification 自诊断和数据记录 |
Valve Selection Recommendation Table
Note: The matching data of actuator and valve in the table is for reference only, the specific torque value provided by the valve manufacturer shall prevail.
Because of the many types of valves, even if the same specifications of the valve, due to the manufacturer's manufacturing process, quality level, structural form, the valve body material is different, the torque value is different. And in actual use, often because of the system pressure fluctuations, media type, site environment, 'operating characteristics of different factors will also lead to the valve opening torque has a great change. In order to ensure the stable and reliable operation of the actuator, it is necessary to leave sufficient margin in the selection. It is recommended to leave a margin coefficient of times in the selection, i.e.: margin coefficient = actuator output torque / valve pressure test torque N1.1 ~ 1.3 times.
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