How to Choose China Electric Actuator?

In pipeline project, the correct selection of electric actuated valves is  a necessary to guarantee the project&#;s safety and process. If the electric actuator valve used incorrectly, it will not only affect the use, but also bring unfavorable consequences or serious losses. So, how do we choose electric valves correctly?

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Fisrt of all, we need to know what is electric actuator valve?

An electric valve actuator is made up of an electric device and a valve. A valve actuator is the mechanism for opening and closing a valve.

Electric actuator valves are usually connected by electric actuators and valves, and become electric actuator valves after installation and debugging. The electric valve uses electric energy as power to motviate the electric actuator to drive the valve, realizing its on-off and regulating action. So as to achieve the purpose of switching or adjusting the pipeline medium.

Notice on choosing the electric actuator valve:

1. Output speed: If the opening and closing speed of the valve is too fast, will easily caus water hammer. Therefore, the appropriate opening and closing speed should be selected according to different use conditions;

2. Control torque: after the specifications are determined, the control torque is also determined. Generally run within a predetermined time, the motor will not be overloaded;

3. Control form: electric actuators are divided into on-off type and regulating type, and the signals of regulating type actuators are also divided into current signals and voltage information numbers;

4. Control voltage: conventional electric actuator voltages are AC220V, AC380V, DC24V, etc.;

5. Operating torque: Operating torque is the most important parameter for selecting electric actuator valve devices. The output torque of the electric actuator should be 1.2 to 1.5 times of the maximum valve operating torque;

6. &#;&#;Electric device: one is not equipped with a thrust plate, and the torque is directly output;

the other is with a thrust plate, and the output torque is converted into output thrust through the stem nut in the thrust plate;

7. Output shaft turns number: The number of turns of the output shaft of the valve electric device is related to the nominal diameter of the valve, the pitch of the valve stem, and the number of thread heads. It should be calculated according to M=H/ZS (M is what the electric device should meet the total number of turns, H is the opening height of the valve, S is the thread pitch of the stem drive thread, and Z is the number of stem threads);

8. Valve stem diameter: for multi-turn type rising stem valves, if the maximum stem diameter allowed by the electric device cannot pass through the stem of the matched valve, it cannot be assembled into an electric valve. Therefore, the inner diameter of the hollow output shaft of the electric device must be larger than the outer diameter of the stem of the rising stem valve. For part-turn valves and dark-stem valves in multi-turn valves, although there is no need to consider the passage of the stem diameter, the stem diameter and the size of the keyway should be fully considered when selecting and matching, so that it can work normally after assembly.

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Introduction:

Selecting the appropriate electric linear actuator is crucial for the success of any electrical equipment development project. With a wide range of options available, it is important to consider various factors such as speed, load capacity, duty cycle, installation space, and environmental conditions. This article presents expert tips to guide you in choosing the perfect electric linear actuator for your specific requirements. By following these guidelines, you can ensure optimal performance and longevity of your equipment.

Analyze the Load Requirements:

Contact us to discuss your requirements of China Valve Actuator. Our experienced sales team can help you identify the options that best suit your needs.

The first step in selecting an electric linear actuator is understanding the load it needs to push or pull. This determines the necessary components and safety considerations. Consider the direction of operation and the distance over which the actuator will need to function. These factors will guide you in choosing the appropriate actuator design.

SLA-T01 linear actuator

Determine the Required Speed:

The desired speed of movement plays a critical role in actuator selection. Not all mechanisms and materials are suitable for high-speed applications. Excessive speeds, especially with heavy loads, can lead to premature wear and reduced actuator lifespan. Take into account the screw pitch, motor characteristics, and other relevant factors to determine the optimal speed for your application.

SLA-12K linear actuator

Consider the Duty Cycle:

The duty cycle defines the ratio of operating time to idle time for a device and varies across different applications. It significantly influences the actuator's materials, mechanisms, and overall lifespan. Choosing an actuator with a duty cycle that aligns with your application's requirements ensures optimal performance and minimizes mechanical wear or overheating. Actuators with parallel motors and spur gears generally support higher duty cycles and offer increased cycle capabilities.

SLA08 linear actuator

Evaluate Installation Space:

The available installation space within your equipment is a crucial consideration. Integrating a large electric linear actuator into a compact system can be challenging. Determine if your application requires operation within limited space and identify any spatial restrictions for seamless integration. The actuator's size depends on its mounting configuration (in-line, L-shaped, or parallel motor mounting). For applications with space constraints, compact in-line actuators are an ideal choice due to their motor-to-screw alignment.

SLA03 linear actuator

Account for Environmental Conditions:

The operating environment of your equipment is a vital parameter in actuator selection. Consider whether the equipment will operate indoors or outdoors and if it will be exposed to dust, contaminants, moisture, or rigorous cleaning processes. The actuator's components and additional IP ratings should be chosen accordingly to ensure durability and reliable performance. For applications that require quiet operation, L-shaped actuators with plastic gears and worm wheels provide smooth and noiseless motion, making them well-suited for medical and household equipment.

SLA01-WP linear actuator

Conclusion:

Choosing the right electric linear actuator involves a comprehensive assessment of various factors. It is essential to select an actuator that meets the specific requirements of your application. At CHANGXING, our technical experts collaborate closely with you throughout your project to deliver customized solutions that fit your budget and performance expectations. For further information and to explore our range of electric linear actuators, please visit our website: www.changxing-motiontech.com.

CHANGXING is dedicated to providing quality solutions tailored to our customers' unique needs, forging lasting partnerships in the process.

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