How to Select an Electric Valve Actuator
一、Choose According to Valve Type
Electric actuators can be used with different types of valves. The ML Series can be applied to gate valves, globe valves, throttle valves, diaphragm valves, plunger valves, and sluice gates. With a worm gear reducer, it can also be used with ball valves, butterfly valves, and dampers.
The first step in selection is to confirm whether the valve requires multi-turn or 90° rotary operation.
二、Confirm the Required Torque
Output torque is one of the most important parameters when selecting an electric actuator.
The ML Series includes models from ML05 to ML505, with rated output torque ranging from 50 N·m to 5000 N·m.
The actuator should be selected according to the actual torque required by the valve.
三、Select the Control Method
Different projects require different control functions.
The ML Series supports several configurations, including:
- Standard control
- Remote control
- 4–20 mA feedback
- Smart non-intrusive control
- Bus control
The control method should match the project’s automation system.
四、Check Power Supply and Protection Rating
The standard ML Series power supply is three-phase AC 380 V ±10%, 50 Hz, with other voltage configurations also available.
Standard protection is IP65/IP67, with IP68 available as an option.
The installation environment, temperature, humidity, and power conditions should therefore be confirmed before ordering.
五、Confirm Installation and Connection
The actuator must also match the valve mechanically.
Key information includes:
- Valve type and size
- Required torque
- Valve stem dimensions
- Mounting connection
- Installation space
- Power supply
- Control requirements
The ML Series provides different connection forms and dimensions for different models.
六、Conclusion
Selecting the right electric actuator mainly depends on valve type, required torque, control method, power supply, protection rating, and installation connection.
Shanghai Wangye Valve Manufacturing Co., Ltd. offers standard, intelligent, compact, explosion-proof, and general electric actuator products for different valve automation requirements.
